diff options
Diffstat (limited to 'vendor')
103 files changed, 10063 insertions, 4988 deletions
diff --git a/vendor/github.com/99designs/gqlgen/api/generate.go b/vendor/github.com/99designs/gqlgen/api/generate.go new file mode 100644 index 00000000..3dd083f5 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/api/generate.go @@ -0,0 +1,76 @@ +package api + +import ( + "syscall" + + "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/codegen/config" + "github.com/99designs/gqlgen/plugin" + "github.com/99designs/gqlgen/plugin/modelgen" + "github.com/99designs/gqlgen/plugin/resolvergen" + "github.com/pkg/errors" + "golang.org/x/tools/go/packages" +) + +func Generate(cfg *config.Config, option ...Option) error { + _ = syscall.Unlink(cfg.Exec.Filename) + _ = syscall.Unlink(cfg.Model.Filename) + + plugins := []plugin.Plugin{ + modelgen.New(), + resolvergen.New(), + } + + for _, o := range option { + o(cfg, &plugins) + } + + for _, p := range plugins { + if mut, ok := p.(plugin.ConfigMutator); ok { + err := mut.MutateConfig(cfg) + if err != nil { + return errors.Wrap(err, p.Name()) + } + } + } + // Merge again now that the generated models have been injected into the typemap + data, err := codegen.BuildData(cfg) + if err != nil { + return errors.Wrap(err, "merging failed") + } + + if err = codegen.GenerateCode(data); err != nil { + return errors.Wrap(err, "generating core failed") + } + + for _, p := range plugins { + if mut, ok := p.(plugin.CodeGenerator); ok { + err := mut.GenerateCode(data) + if err != nil { + return errors.Wrap(err, p.Name()) + } + } + } + + if err := validate(cfg); err != nil { + return errors.Wrap(err, "validation failed") + } + + return nil +} + +func validate(cfg *config.Config) error { + roots := []string{cfg.Exec.ImportPath()} + if cfg.Model.IsDefined() { + roots = append(roots, cfg.Model.ImportPath()) + } + + if cfg.Resolver.IsDefined() { + roots = append(roots, cfg.Resolver.ImportPath()) + } + _, err := packages.Load(&packages.Config{Mode: packages.LoadTypes | packages.LoadSyntax}, roots...) + if err != nil { + return errors.Wrap(err, "validation failed") + } + return nil +} diff --git a/vendor/github.com/99designs/gqlgen/api/option.go b/vendor/github.com/99designs/gqlgen/api/option.go new file mode 100644 index 00000000..f7ba6774 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/api/option.go @@ -0,0 +1,20 @@ +package api + +import ( + "github.com/99designs/gqlgen/codegen/config" + "github.com/99designs/gqlgen/plugin" +) + +type Option func(cfg *config.Config, plugins *[]plugin.Plugin) + +func NoPlugins() Option { + return func(cfg *config.Config, plugins *[]plugin.Plugin) { + *plugins = nil + } +} + +func AddPlugin(p plugin.Plugin) Option { + return func(cfg *config.Config, plugins *[]plugin.Plugin) { + *plugins = append(*plugins, p) + } +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/ambient.go b/vendor/github.com/99designs/gqlgen/cmd/ambient.go index c9909fcc..7838fdf1 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/ambient.go +++ b/vendor/github.com/99designs/gqlgen/cmd/ambient.go @@ -1,4 +1,4 @@ -package codegen +package cmd import ( // Import and ignore the ambient imports listed below so dependency managers diff --git a/vendor/github.com/99designs/gqlgen/cmd/gen.go b/vendor/github.com/99designs/gqlgen/cmd/gen.go index 3842f02b..c69858b4 100644 --- a/vendor/github.com/99designs/gqlgen/cmd/gen.go +++ b/vendor/github.com/99designs/gqlgen/cmd/gen.go @@ -2,10 +2,10 @@ package cmd import ( "fmt" - "io/ioutil" "os" - "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/api" + "github.com/99designs/gqlgen/codegen/config" "github.com/pkg/errors" "github.com/urfave/cli" ) @@ -18,43 +18,27 @@ var genCmd = cli.Command{ cli.StringFlag{Name: "config, c", Usage: "the config filename"}, }, Action: func(ctx *cli.Context) { - var config *codegen.Config + var cfg *config.Config var err error if configFilename := ctx.String("config"); configFilename != "" { - config, err = codegen.LoadConfig(configFilename) + cfg, err = config.LoadConfig(configFilename) if err != nil { fmt.Fprintln(os.Stderr, err.Error()) os.Exit(1) } } else { - config, err = codegen.LoadConfigFromDefaultLocations() + cfg, err = config.LoadConfigFromDefaultLocations() if os.IsNotExist(errors.Cause(err)) { - config = codegen.DefaultConfig() + cfg = config.DefaultConfig() } else if err != nil { fmt.Fprintln(os.Stderr, err.Error()) - os.Exit(1) - } - } - - for _, filename := range config.SchemaFilename { - var schemaRaw []byte - schemaRaw, err = ioutil.ReadFile(filename) - if err != nil { - fmt.Fprintln(os.Stderr, "unable to open schema: "+err.Error()) - os.Exit(1) + os.Exit(2) } - config.SchemaStr[filename] = string(schemaRaw) - } - - if err = config.Check(); err != nil { - fmt.Fprintln(os.Stderr, "invalid config format: "+err.Error()) - os.Exit(1) } - err = codegen.Generate(*config) - if err != nil { + if err = api.Generate(cfg); err != nil { fmt.Fprintln(os.Stderr, err.Error()) - os.Exit(2) + os.Exit(3) } }, } diff --git a/vendor/github.com/99designs/gqlgen/cmd/init.go b/vendor/github.com/99designs/gqlgen/cmd/init.go index 1e7c18b9..e07bed97 100644 --- a/vendor/github.com/99designs/gqlgen/cmd/init.go +++ b/vendor/github.com/99designs/gqlgen/cmd/init.go @@ -7,10 +7,13 @@ import ( "os" "strings" - "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/api" + "github.com/99designs/gqlgen/plugin/servergen" + + "github.com/99designs/gqlgen/codegen/config" "github.com/pkg/errors" "github.com/urfave/cli" - "gopkg.in/yaml.v2" + yaml "gopkg.in/yaml.v2" ) var configComment = ` @@ -68,46 +71,27 @@ var initCmd = cli.Command{ }, } -func GenerateGraphServer(config *codegen.Config, serverFilename string) { - for _, filename := range config.SchemaFilename { - schemaRaw, err := ioutil.ReadFile(filename) - if err != nil { - fmt.Fprintln(os.Stderr, "unable to open schema: "+err.Error()) - os.Exit(1) - } - config.SchemaStr[filename] = string(schemaRaw) - } - - if err := config.Check(); err != nil { - fmt.Fprintln(os.Stderr, "invalid config format: "+err.Error()) - os.Exit(1) - } - - if err := codegen.Generate(*config); err != nil { - fmt.Fprintln(os.Stderr, err.Error()) - os.Exit(1) - } - - if err := codegen.GenerateServer(*config, serverFilename); err != nil { +func GenerateGraphServer(cfg *config.Config, serverFilename string) { + err := api.Generate(cfg, api.AddPlugin(servergen.New(serverFilename))) + if err != nil { fmt.Fprintln(os.Stderr, err.Error()) - os.Exit(1) } fmt.Fprintf(os.Stdout, "Exec \"go run ./%s\" to start GraphQL server\n", serverFilename) } -func initConfig(ctx *cli.Context) *codegen.Config { - var config *codegen.Config +func initConfig(ctx *cli.Context) *config.Config { + var cfg *config.Config var err error configFilename := ctx.String("config") if configFilename != "" { - config, err = codegen.LoadConfig(configFilename) + cfg, err = config.LoadConfig(configFilename) } else { - config, err = codegen.LoadConfigFromDefaultLocations() + cfg, err = config.LoadConfigFromDefaultLocations() } - if config != nil { - fmt.Fprintf(os.Stderr, "init failed: a configuration file already exists at %s\n", config.FilePath) + if cfg != nil { + fmt.Fprintf(os.Stderr, "init failed: a configuration file already exists\n") os.Exit(1) } @@ -119,9 +103,9 @@ func initConfig(ctx *cli.Context) *codegen.Config { if configFilename == "" { configFilename = "gqlgen.yml" } - config = codegen.DefaultConfig() + cfg = config.DefaultConfig() - config.Resolver = codegen.PackageConfig{ + cfg.Resolver = config.PackageConfig{ Filename: "resolver.go", Type: "Resolver", } @@ -129,23 +113,21 @@ func initConfig(ctx *cli.Context) *codegen.Config { var buf bytes.Buffer buf.WriteString(strings.TrimSpace(configComment)) buf.WriteString("\n\n") - { - var b []byte - b, err = yaml.Marshal(config) - if err != nil { - fmt.Fprintln(os.Stderr, "unable to marshal yaml: "+err.Error()) - os.Exit(1) - } - buf.Write(b) + var b []byte + b, err = yaml.Marshal(cfg) + if err != nil { + fmt.Fprintln(os.Stderr, "unable to marshal yaml: "+err.Error()) + os.Exit(1) } + buf.Write(b) err = ioutil.WriteFile(configFilename, buf.Bytes(), 0644) if err != nil { - fmt.Fprintln(os.Stderr, "unable to write config file: "+err.Error()) + fmt.Fprintln(os.Stderr, "unable to write cfg file: "+err.Error()) os.Exit(1) } - return config + return cfg } func initSchema(schemaFilename string) { diff --git a/vendor/github.com/99designs/gqlgen/cmd/root.go b/vendor/github.com/99designs/gqlgen/cmd/root.go index 519c2e1a..dc2970ac 100644 --- a/vendor/github.com/99designs/gqlgen/cmd/root.go +++ b/vendor/github.com/99designs/gqlgen/cmd/root.go @@ -7,7 +7,6 @@ import ( "os" "github.com/99designs/gqlgen/graphql" - "github.com/99designs/gqlgen/internal/gopath" "github.com/urfave/cli" // Required since otherwise dep will prune away these unused packages before codegen has a chance to run @@ -23,14 +22,6 @@ func Execute() { app.Flags = genCmd.Flags app.Version = graphql.Version app.Before = func(context *cli.Context) error { - pwd, err := os.Getwd() - if err != nil { - return fmt.Errorf("unable to determine current workding dir: %s\n", err.Error()) - } - - if !gopath.Contains(pwd) { - return fmt.Errorf("gqlgen must be run from inside your $GOPATH\n") - } if context.Bool("verbose") { log.SetFlags(0) } else { @@ -47,7 +38,7 @@ func Execute() { } if err := app.Run(os.Args); err != nil { - fmt.Fprintf(os.Stderr, err.Error()) + fmt.Fprint(os.Stderr, err.Error()) os.Exit(1) } } diff --git a/vendor/github.com/99designs/gqlgen/codegen/args.go b/vendor/github.com/99designs/gqlgen/codegen/args.go new file mode 100644 index 00000000..d1498bdd --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/args.go @@ -0,0 +1,104 @@ +package codegen + +import ( + "fmt" + "go/types" + "strings" + + "github.com/99designs/gqlgen/codegen/config" + "github.com/99designs/gqlgen/codegen/templates" + "github.com/pkg/errors" + "github.com/vektah/gqlparser/ast" +) + +type ArgSet struct { + Args []*FieldArgument + FuncDecl string +} + +type FieldArgument struct { + *ast.ArgumentDefinition + TypeReference *config.TypeReference + VarName string // The name of the var in go + Object *Object // A link back to the parent object + Default interface{} // The default value + Directives []*Directive + Value interface{} // value set in Data +} + +func (f *FieldArgument) Stream() bool { + return f.Object != nil && f.Object.Stream +} + +func (b *builder) buildArg(obj *Object, arg *ast.ArgumentDefinition) (*FieldArgument, error) { + tr, err := b.Binder.TypeReference(arg.Type, nil) + if err != nil { + return nil, err + } + + argDirs, err := b.getDirectives(arg.Directives) + if err != nil { + return nil, err + } + newArg := FieldArgument{ + ArgumentDefinition: arg, + TypeReference: tr, + Object: obj, + VarName: templates.ToGoPrivate(arg.Name), + Directives: argDirs, + } + + if arg.DefaultValue != nil { + newArg.Default, err = arg.DefaultValue.Value(nil) + if err != nil { + return nil, errors.Errorf("default value is not valid: %s", err.Error()) + } + } + + return &newArg, nil +} + +func (b *builder) bindArgs(field *Field, params *types.Tuple) error { + var newArgs []*FieldArgument + +nextArg: + for j := 0; j < params.Len(); j++ { + param := params.At(j) + for _, oldArg := range field.Args { + if strings.EqualFold(oldArg.Name, param.Name()) { + tr, err := b.Binder.TypeReference(oldArg.Type, param.Type()) + if err != nil { + return err + } + oldArg.TypeReference = tr + + newArgs = append(newArgs, oldArg) + continue nextArg + } + } + + // no matching arg found, abort + return fmt.Errorf("arg %s not in schema", param.Name()) + } + + field.Args = newArgs + return nil +} + +func (a *Data) Args() map[string][]*FieldArgument { + ret := map[string][]*FieldArgument{} + for _, o := range a.Objects { + for _, f := range o.Fields { + if len(f.Args) > 0 { + ret[f.ArgsFunc()] = f.Args + } + } + } + + for _, d := range a.Directives { + if len(d.Args) > 0 { + ret[d.ArgsFunc()] = d.Args + } + } + return ret +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/args.gotpl b/vendor/github.com/99designs/gqlgen/codegen/args.gotpl new file mode 100644 index 00000000..4c721218 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/args.gotpl @@ -0,0 +1,43 @@ +{{ range $name, $args := .Args }} +func (ec *executionContext) {{ $name }}(ctx context.Context, rawArgs map[string]interface{}) (map[string]interface{}, error) { + var err error + args := map[string]interface{}{} + {{- range $i, $arg := . }} + var arg{{$i}} {{ $arg.TypeReference.GO | ref}} + if tmp, ok := rawArgs[{{$arg.Name|quote}}]; ok { + {{- if $arg.Directives }} + getArg0 := func(ctx context.Context) (interface{}, error) { return ec.{{ $arg.TypeReference.UnmarshalFunc }}(ctx, tmp) } + + {{- range $i, $directive := $arg.Directives }} + getArg{{add $i 1}} := func(ctx context.Context) (res interface{}, err error) { + {{- range $dArg := $directive.Args }} + {{- if and $dArg.TypeReference.IsPtr ( notNil "Value" $dArg ) }} + {{ $dArg.VarName }} := {{ $dArg.Value | dump }} + {{- end }} + {{- end }} + n := getArg{{$i}} + return ec.directives.{{$directive.Name|ucFirst}}({{$directive.ResolveArgs "tmp" "n" }}) + } + {{- end }} + + tmp, err = getArg{{$arg.Directives|len}}(ctx) + if err != nil { + return nil, err + } + if data, ok := tmp.({{ $arg.TypeReference.GO | ref }}) ; ok { + arg{{$i}} = data + } else { + return nil, fmt.Errorf(`unexpected type %T from directive, should be {{ $arg.TypeReference.GO }}`, tmp) + } + {{- else }} + arg{{$i}}, err = ec.{{ $arg.TypeReference.UnmarshalFunc }}(ctx, tmp) + if err != nil { + return nil, err + } + {{- end }} + } + args[{{$arg.Name|quote}}] = arg{{$i}} + {{- end }} + return args, nil +} +{{ end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/build.go b/vendor/github.com/99designs/gqlgen/codegen/build.go deleted file mode 100644 index 582689a7..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/build.go +++ /dev/null @@ -1,194 +0,0 @@ -package codegen - -import ( - "fmt" - "go/build" - "go/types" - "os" - - "github.com/pkg/errors" - "golang.org/x/tools/go/loader" -) - -type Build struct { - PackageName string - Objects Objects - Inputs Objects - Interfaces []*Interface - QueryRoot *Object - MutationRoot *Object - SubscriptionRoot *Object - SchemaRaw map[string]string - SchemaFilename SchemaFilenames - Directives []*Directive -} - -type ModelBuild struct { - PackageName string - Models []Model - Enums []Enum -} - -type ResolverBuild struct { - PackageName string - ResolverType string - Objects Objects - ResolverFound bool -} - -type ServerBuild struct { - PackageName string - ExecPackageName string - ResolverPackageName string -} - -// Create a list of models that need to be generated -func (cfg *Config) models() (*ModelBuild, error) { - namedTypes := cfg.buildNamedTypes() - - progLoader := cfg.newLoaderWithoutErrors() - - prog, err := progLoader.Load() - if err != nil { - return nil, errors.Wrap(err, "loading failed") - } - - cfg.bindTypes(namedTypes, cfg.Model.Dir(), prog) - - models, err := cfg.buildModels(namedTypes, prog) - if err != nil { - return nil, err - } - return &ModelBuild{ - PackageName: cfg.Model.Package, - Models: models, - Enums: cfg.buildEnums(namedTypes), - }, nil -} - -// bind a schema together with some code to generate a Build -func (cfg *Config) resolver() (*ResolverBuild, error) { - progLoader := cfg.newLoaderWithoutErrors() - progLoader.Import(cfg.Resolver.ImportPath()) - - prog, err := progLoader.Load() - if err != nil { - return nil, err - } - - destDir := cfg.Resolver.Dir() - - namedTypes := cfg.buildNamedTypes() - - cfg.bindTypes(namedTypes, destDir, prog) - - objects, err := cfg.buildObjects(namedTypes, prog) - if err != nil { - return nil, err - } - - def, _ := findGoType(prog, cfg.Resolver.ImportPath(), cfg.Resolver.Type) - resolverFound := def != nil - - return &ResolverBuild{ - PackageName: cfg.Resolver.Package, - Objects: objects, - ResolverType: cfg.Resolver.Type, - ResolverFound: resolverFound, - }, nil -} - -func (cfg *Config) server(destDir string) *ServerBuild { - return &ServerBuild{ - PackageName: cfg.Resolver.Package, - ExecPackageName: cfg.Exec.ImportPath(), - ResolverPackageName: cfg.Resolver.ImportPath(), - } -} - -// bind a schema together with some code to generate a Build -func (cfg *Config) bind() (*Build, error) { - namedTypes := cfg.buildNamedTypes() - - progLoader := cfg.newLoaderWithoutErrors() - prog, err := progLoader.Load() - if err != nil { - return nil, errors.Wrap(err, "loading failed") - } - - cfg.bindTypes(namedTypes, cfg.Exec.Dir(), prog) - - objects, err := cfg.buildObjects(namedTypes, prog) - if err != nil { - return nil, err - } - - inputs, err := cfg.buildInputs(namedTypes, prog) - if err != nil { - return nil, err - } - directives, err := cfg.buildDirectives(namedTypes) - if err != nil { - return nil, err - } - - b := &Build{ - PackageName: cfg.Exec.Package, - Objects: objects, - Interfaces: cfg.buildInterfaces(namedTypes, prog), - Inputs: inputs, - SchemaRaw: cfg.SchemaStr, - SchemaFilename: cfg.SchemaFilename, - Directives: directives, - } - - if cfg.schema.Query != nil { - b.QueryRoot = b.Objects.ByName(cfg.schema.Query.Name) - } else { - return b, fmt.Errorf("query entry point missing") - } - - if cfg.schema.Mutation != nil { - b.MutationRoot = b.Objects.ByName(cfg.schema.Mutation.Name) - } - - if cfg.schema.Subscription != nil { - b.SubscriptionRoot = b.Objects.ByName(cfg.schema.Subscription.Name) - } - return b, nil -} - -func (cfg *Config) validate() error { - progLoader := cfg.newLoaderWithErrors() - _, err := progLoader.Load() - return err -} - -func (cfg *Config) newLoaderWithErrors() loader.Config { - conf := loader.Config{} - - for _, pkg := range cfg.Models.referencedPackages() { - conf.Import(pkg) - } - return conf -} - -func (cfg *Config) newLoaderWithoutErrors() loader.Config { - conf := cfg.newLoaderWithErrors() - conf.AllowErrors = true - conf.TypeChecker = types.Config{ - Error: func(e error) {}, - } - return conf -} - -func resolvePkg(pkgName string) (string, error) { - cwd, _ := os.Getwd() - - pkg, err := build.Default.Import(pkgName, cwd, build.FindOnly) - if err != nil { - return "", err - } - - return pkg.ImportPath, nil -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/codegen.go b/vendor/github.com/99designs/gqlgen/codegen/codegen.go deleted file mode 100644 index 773e3db7..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/codegen.go +++ /dev/null @@ -1,179 +0,0 @@ -package codegen - -import ( - "log" - "os" - "path/filepath" - "regexp" - "syscall" - - "github.com/99designs/gqlgen/codegen/templates" - "github.com/pkg/errors" - "github.com/vektah/gqlparser" - "github.com/vektah/gqlparser/ast" - "github.com/vektah/gqlparser/gqlerror" -) - -func Generate(cfg Config) error { - if err := cfg.normalize(); err != nil { - return err - } - - _ = syscall.Unlink(cfg.Exec.Filename) - _ = syscall.Unlink(cfg.Model.Filename) - - modelsBuild, err := cfg.models() - if err != nil { - return errors.Wrap(err, "model plan failed") - } - if len(modelsBuild.Models) > 0 || len(modelsBuild.Enums) > 0 { - if err = templates.RenderToFile("models.gotpl", cfg.Model.Filename, modelsBuild); err != nil { - return err - } - - for _, model := range modelsBuild.Models { - modelCfg := cfg.Models[model.GQLType] - modelCfg.Model = cfg.Model.ImportPath() + "." + model.GoType - cfg.Models[model.GQLType] = modelCfg - } - - for _, enum := range modelsBuild.Enums { - modelCfg := cfg.Models[enum.GQLType] - modelCfg.Model = cfg.Model.ImportPath() + "." + enum.GoType - cfg.Models[enum.GQLType] = modelCfg - } - } - - build, err := cfg.bind() - if err != nil { - return errors.Wrap(err, "exec plan failed") - } - - if err := templates.RenderToFile("generated.gotpl", cfg.Exec.Filename, build); err != nil { - return err - } - - if cfg.Resolver.IsDefined() { - if err := generateResolver(cfg); err != nil { - return errors.Wrap(err, "generating resolver failed") - } - } - - if err := cfg.validate(); err != nil { - return errors.Wrap(err, "validation failed") - } - - return nil -} - -func GenerateServer(cfg Config, filename string) error { - if err := cfg.Exec.normalize(); err != nil { - return errors.Wrap(err, "exec") - } - if err := cfg.Resolver.normalize(); err != nil { - return errors.Wrap(err, "resolver") - } - - serverFilename := abs(filename) - serverBuild := cfg.server(filepath.Dir(serverFilename)) - - if _, err := os.Stat(serverFilename); os.IsNotExist(errors.Cause(err)) { - err = templates.RenderToFile("server.gotpl", serverFilename, serverBuild) - if err != nil { - return errors.Wrap(err, "generate server failed") - } - } else { - log.Printf("Skipped server: %s already exists\n", serverFilename) - } - return nil -} - -func generateResolver(cfg Config) error { - resolverBuild, err := cfg.resolver() - if err != nil { - return errors.Wrap(err, "resolver build failed") - } - filename := cfg.Resolver.Filename - - if resolverBuild.ResolverFound { - log.Printf("Skipped resolver: %s.%s already exists\n", cfg.Resolver.ImportPath(), cfg.Resolver.Type) - return nil - } - - if _, err := os.Stat(filename); os.IsNotExist(errors.Cause(err)) { - if err := templates.RenderToFile("resolver.gotpl", filename, resolverBuild); err != nil { - return err - } - } else { - log.Printf("Skipped resolver: %s already exists\n", filename) - } - - return nil -} - -func (cfg *Config) normalize() error { - if err := cfg.Model.normalize(); err != nil { - return errors.Wrap(err, "model") - } - - if err := cfg.Exec.normalize(); err != nil { - return errors.Wrap(err, "exec") - } - - if cfg.Resolver.IsDefined() { - if err := cfg.Resolver.normalize(); err != nil { - return errors.Wrap(err, "resolver") - } - } - - builtins := TypeMap{ - "__Directive": {Model: "github.com/99designs/gqlgen/graphql/introspection.Directive"}, - "__Type": {Model: "github.com/99designs/gqlgen/graphql/introspection.Type"}, - "__Field": {Model: "github.com/99designs/gqlgen/graphql/introspection.Field"}, - "__EnumValue": {Model: "github.com/99designs/gqlgen/graphql/introspection.EnumValue"}, - "__InputValue": {Model: "github.com/99designs/gqlgen/graphql/introspection.InputValue"}, - "__Schema": {Model: "github.com/99designs/gqlgen/graphql/introspection.Schema"}, - "Int": {Model: "github.com/99designs/gqlgen/graphql.Int"}, - "Float": {Model: "github.com/99designs/gqlgen/graphql.Float"}, - "String": {Model: "github.com/99designs/gqlgen/graphql.String"}, - "Boolean": {Model: "github.com/99designs/gqlgen/graphql.Boolean"}, - "ID": {Model: "github.com/99designs/gqlgen/graphql.ID"}, - "Time": {Model: "github.com/99designs/gqlgen/graphql.Time"}, - "Map": {Model: "github.com/99designs/gqlgen/graphql.Map"}, - } - - if cfg.Models == nil { - cfg.Models = TypeMap{} - } - for typeName, entry := range builtins { - if !cfg.Models.Exists(typeName) { - cfg.Models[typeName] = entry - } - } - - var sources []*ast.Source - for _, filename := range cfg.SchemaFilename { - sources = append(sources, &ast.Source{Name: filename, Input: cfg.SchemaStr[filename]}) - } - - var err *gqlerror.Error - cfg.schema, err = gqlparser.LoadSchema(sources...) - if err != nil { - return err - } - return nil -} - -var invalidPackageNameChar = regexp.MustCompile(`[^\w]`) - -func sanitizePackageName(pkg string) string { - return invalidPackageNameChar.ReplaceAllLiteralString(filepath.Base(pkg), "_") -} - -func abs(path string) string { - absPath, err := filepath.Abs(path) - if err != nil { - panic(err) - } - return filepath.ToSlash(absPath) -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/complexity.go b/vendor/github.com/99designs/gqlgen/codegen/complexity.go new file mode 100644 index 00000000..66d21a84 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/complexity.go @@ -0,0 +1,11 @@ +package codegen + +func (o *Object) UniqueFields() map[string]*Field { + m := map[string]*Field{} + + for _, f := range o.Fields { + m[f.GoFieldName] = f + } + + return m +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/config.go b/vendor/github.com/99designs/gqlgen/codegen/config.go deleted file mode 100644 index f9df24fb..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/config.go +++ /dev/null @@ -1,273 +0,0 @@ -package codegen - -import ( - "fmt" - "go/build" - "io/ioutil" - "os" - "path/filepath" - "sort" - "strings" - - "github.com/99designs/gqlgen/internal/gopath" - "github.com/pkg/errors" - "github.com/vektah/gqlparser/ast" - "gopkg.in/yaml.v2" -) - -var cfgFilenames = []string{".gqlgen.yml", "gqlgen.yml", "gqlgen.yaml"} - -// DefaultConfig creates a copy of the default config -func DefaultConfig() *Config { - return &Config{ - SchemaFilename: SchemaFilenames{"schema.graphql"}, - SchemaStr: map[string]string{}, - Model: PackageConfig{Filename: "models_gen.go"}, - Exec: PackageConfig{Filename: "generated.go"}, - } -} - -// LoadConfigFromDefaultLocations looks for a config file in the current directory, and all parent directories -// walking up the tree. The closest config file will be returned. -func LoadConfigFromDefaultLocations() (*Config, error) { - cfgFile, err := findCfg() - if err != nil { - return nil, err - } - - err = os.Chdir(filepath.Dir(cfgFile)) - if err != nil { - return nil, errors.Wrap(err, "unable to enter config dir") - } - return LoadConfig(cfgFile) -} - -// LoadConfig reads the gqlgen.yml config file -func LoadConfig(filename string) (*Config, error) { - config := DefaultConfig() - - b, err := ioutil.ReadFile(filename) - if err != nil { - return nil, errors.Wrap(err, "unable to read config") - } - - if err := yaml.UnmarshalStrict(b, config); err != nil { - return nil, errors.Wrap(err, "unable to parse config") - } - - preGlobbing := config.SchemaFilename - config.SchemaFilename = SchemaFilenames{} - for _, f := range preGlobbing { - matches, err := filepath.Glob(f) - if err != nil { - return nil, errors.Wrapf(err, "failed to glob schema filename %s", f) - } - - for _, m := range matches { - if config.SchemaFilename.Has(m) { - continue - } - config.SchemaFilename = append(config.SchemaFilename, m) - } - } - - config.FilePath = filename - config.SchemaStr = map[string]string{} - - return config, nil -} - -type Config struct { - SchemaFilename SchemaFilenames `yaml:"schema,omitempty"` - SchemaStr map[string]string `yaml:"-"` - Exec PackageConfig `yaml:"exec"` - Model PackageConfig `yaml:"model"` - Resolver PackageConfig `yaml:"resolver,omitempty"` - Models TypeMap `yaml:"models,omitempty"` - StructTag string `yaml:"struct_tag,omitempty"` - - FilePath string `yaml:"-"` - - schema *ast.Schema `yaml:"-"` -} - -type PackageConfig struct { - Filename string `yaml:"filename,omitempty"` - Package string `yaml:"package,omitempty"` - Type string `yaml:"type,omitempty"` -} - -type TypeMapEntry struct { - Model string `yaml:"model"` - Fields map[string]TypeMapField `yaml:"fields,omitempty"` -} - -type TypeMapField struct { - Resolver bool `yaml:"resolver"` - FieldName string `yaml:"fieldName"` -} - -type SchemaFilenames []string - -func (a *SchemaFilenames) UnmarshalYAML(unmarshal func(interface{}) error) error { - var single string - err := unmarshal(&single) - if err == nil { - *a = []string{single} - return nil - } - - var multi []string - err = unmarshal(&multi) - if err != nil { - return err - } - - *a = multi - return nil -} - -func (a SchemaFilenames) Has(file string) bool { - for _, existing := range a { - if existing == file { - return true - } - } - return false -} - -func (c *PackageConfig) normalize() error { - if c.Filename == "" { - return errors.New("Filename is required") - } - c.Filename = abs(c.Filename) - // If Package is not set, first attempt to load the package at the output dir. If that fails - // fallback to just the base dir name of the output filename. - if c.Package == "" { - cwd, _ := os.Getwd() - pkg, _ := build.Default.Import(c.ImportPath(), cwd, 0) - if pkg.Name != "" { - c.Package = pkg.Name - } else { - c.Package = filepath.Base(c.Dir()) - } - } - c.Package = sanitizePackageName(c.Package) - return nil -} - -func (c *PackageConfig) ImportPath() string { - return gopath.MustDir2Import(c.Dir()) -} - -func (c *PackageConfig) Dir() string { - return filepath.Dir(c.Filename) -} - -func (c *PackageConfig) Check() error { - if strings.ContainsAny(c.Package, "./\\") { - return fmt.Errorf("package should be the output package name only, do not include the output filename") - } - if c.Filename != "" && !strings.HasSuffix(c.Filename, ".go") { - return fmt.Errorf("filename should be path to a go source file") - } - return nil -} - -func (c *PackageConfig) IsDefined() bool { - return c.Filename != "" -} - -func (cfg *Config) Check() error { - if err := cfg.Models.Check(); err != nil { - return errors.Wrap(err, "config.models") - } - if err := cfg.Exec.Check(); err != nil { - return errors.Wrap(err, "config.exec") - } - if err := cfg.Model.Check(); err != nil { - return errors.Wrap(err, "config.model") - } - if err := cfg.Resolver.Check(); err != nil { - return errors.Wrap(err, "config.resolver") - } - return nil -} - -type TypeMap map[string]TypeMapEntry - -func (tm TypeMap) Exists(typeName string) bool { - _, ok := tm[typeName] - return ok -} - -func (tm TypeMap) Check() error { - for typeName, entry := range tm { - if strings.LastIndex(entry.Model, ".") < strings.LastIndex(entry.Model, "/") { - return fmt.Errorf("model %s: invalid type specifier \"%s\" - you need to specify a struct to map to", typeName, entry.Model) - } - } - return nil -} - -func (tm TypeMap) referencedPackages() []string { - var pkgs []string - - for _, typ := range tm { - if typ.Model == "map[string]interface{}" { - continue - } - pkg, _ := pkgAndType(typ.Model) - if pkg == "" || inStrSlice(pkgs, pkg) { - continue - } - pkgs = append(pkgs, pkg) - } - - sort.Slice(pkgs, func(i, j int) bool { - return pkgs[i] > pkgs[j] - }) - return pkgs -} - -func inStrSlice(haystack []string, needle string) bool { - for _, v := range haystack { - if needle == v { - return true - } - } - - return false -} - -// findCfg searches for the config file in this directory and all parents up the tree -// looking for the closest match -func findCfg() (string, error) { - dir, err := os.Getwd() - if err != nil { - return "", errors.Wrap(err, "unable to get working dir to findCfg") - } - - cfg := findCfgInDir(dir) - - for cfg == "" && dir != filepath.Dir(dir) { - dir = filepath.Dir(dir) - cfg = findCfgInDir(dir) - } - - if cfg == "" { - return "", os.ErrNotExist - } - - return cfg, nil -} - -func findCfgInDir(dir string) string { - for _, cfgName := range cfgFilenames { - path := filepath.Join(dir, cfgName) - if _, err := os.Stat(path); err == nil { - return path - } - } - return "" -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/config/binder.go b/vendor/github.com/99designs/gqlgen/codegen/config/binder.go new file mode 100644 index 00000000..f3956387 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/config/binder.go @@ -0,0 +1,451 @@ +package config + +import ( + "fmt" + "go/token" + "go/types" + + "github.com/99designs/gqlgen/codegen/templates" + "github.com/99designs/gqlgen/internal/code" + "github.com/pkg/errors" + "github.com/vektah/gqlparser/ast" + "golang.org/x/tools/go/packages" +) + +// Binder connects graphql types to golang types using static analysis +type Binder struct { + pkgs []*packages.Package + schema *ast.Schema + cfg *Config + References []*TypeReference +} + +func (c *Config) NewBinder(s *ast.Schema) (*Binder, error) { + pkgs, err := packages.Load(&packages.Config{Mode: packages.LoadTypes | packages.LoadSyntax}, c.Models.ReferencedPackages()...) + if err != nil { + return nil, err + } + + for _, p := range pkgs { + for _, e := range p.Errors { + if e.Kind == packages.ListError { + return nil, p.Errors[0] + } + } + } + + return &Binder{ + pkgs: pkgs, + schema: s, + cfg: c, + }, nil +} + +func (b *Binder) TypePosition(typ types.Type) token.Position { + named, isNamed := typ.(*types.Named) + if !isNamed { + return token.Position{ + Filename: "unknown", + } + } + + return b.ObjectPosition(named.Obj()) +} + +func (b *Binder) ObjectPosition(typ types.Object) token.Position { + if typ == nil { + return token.Position{ + Filename: "unknown", + } + } + pkg := b.getPkg(typ.Pkg().Path()) + return pkg.Fset.Position(typ.Pos()) +} + +func (b *Binder) FindType(pkgName string, typeName string) (types.Type, error) { + obj, err := b.FindObject(pkgName, typeName) + if err != nil { + return nil, err + } + + if fun, isFunc := obj.(*types.Func); isFunc { + return fun.Type().(*types.Signature).Params().At(0).Type(), nil + } + return obj.Type(), nil +} + +func (b *Binder) getPkg(find string) *packages.Package { + for _, p := range b.pkgs { + if code.NormalizeVendor(find) == code.NormalizeVendor(p.PkgPath) { + return p + } + } + return nil +} + +var MapType = types.NewMap(types.Typ[types.String], types.NewInterfaceType(nil, nil).Complete()) +var InterfaceType = types.NewInterfaceType(nil, nil) + +func (b *Binder) DefaultUserObject(name string) (types.Type, error) { + models := b.cfg.Models[name].Model + if len(models) == 0 { + return nil, fmt.Errorf(name + " not found in typemap") + } + + if models[0] == "map[string]interface{}" { + return MapType, nil + } + + if models[0] == "interface{}" { + return InterfaceType, nil + } + + pkgName, typeName := code.PkgAndType(models[0]) + if pkgName == "" { + return nil, fmt.Errorf("missing package name for %s", name) + } + + obj, err := b.FindObject(pkgName, typeName) + if err != nil { + return nil, err + } + + return obj.Type(), nil +} + +func (b *Binder) FindObject(pkgName string, typeName string) (types.Object, error) { + if pkgName == "" { + return nil, fmt.Errorf("package cannot be nil") + } + fullName := typeName + if pkgName != "" { + fullName = pkgName + "." + typeName + } + + pkg := b.getPkg(pkgName) + if pkg == nil { + return nil, errors.Errorf("required package was not loaded: %s", fullName) + } + + // function based marshalers take precedence + for astNode, def := range pkg.TypesInfo.Defs { + // only look at defs in the top scope + if def == nil || def.Parent() == nil || def.Parent() != pkg.Types.Scope() { + continue + } + + if astNode.Name == "Marshal"+typeName { + return def, nil + } + } + + // then look for types directly + for astNode, def := range pkg.TypesInfo.Defs { + // only look at defs in the top scope + if def == nil || def.Parent() == nil || def.Parent() != pkg.Types.Scope() { + continue + } + + if astNode.Name == typeName { + return def, nil + } + } + + return nil, errors.Errorf("unable to find type %s\n", fullName) +} + +func (b *Binder) PointerTo(ref *TypeReference) *TypeReference { + newRef := &TypeReference{ + GO: types.NewPointer(ref.GO), + GQL: ref.GQL, + CastType: ref.CastType, + Definition: ref.Definition, + Unmarshaler: ref.Unmarshaler, + Marshaler: ref.Marshaler, + IsMarshaler: ref.IsMarshaler, + } + + b.References = append(b.References, newRef) + return newRef +} + +// TypeReference is used by args and field types. The Definition can refer to both input and output types. +type TypeReference struct { + Definition *ast.Definition + GQL *ast.Type + GO types.Type + CastType types.Type // Before calling marshalling functions cast from/to this base type + Marshaler *types.Func // When using external marshalling functions this will point to the Marshal function + Unmarshaler *types.Func // When using external marshalling functions this will point to the Unmarshal function + IsMarshaler bool // Does the type implement graphql.Marshaler and graphql.Unmarshaler +} + +func (ref *TypeReference) Elem() *TypeReference { + if p, isPtr := ref.GO.(*types.Pointer); isPtr { + return &TypeReference{ + GO: p.Elem(), + GQL: ref.GQL, + CastType: ref.CastType, + Definition: ref.Definition, + Unmarshaler: ref.Unmarshaler, + Marshaler: ref.Marshaler, + IsMarshaler: ref.IsMarshaler, + } + } + + if ref.IsSlice() { + return &TypeReference{ + GO: ref.GO.(*types.Slice).Elem(), + GQL: ref.GQL.Elem, + CastType: ref.CastType, + Definition: ref.Definition, + Unmarshaler: ref.Unmarshaler, + Marshaler: ref.Marshaler, + IsMarshaler: ref.IsMarshaler, + } + } + return nil +} + +func (t *TypeReference) IsPtr() bool { + _, isPtr := t.GO.(*types.Pointer) + return isPtr +} + +func (t *TypeReference) IsNilable() bool { + _, isPtr := t.GO.(*types.Pointer) + _, isMap := t.GO.(*types.Map) + _, isInterface := t.GO.(*types.Interface) + return isPtr || isMap || isInterface +} + +func (t *TypeReference) IsSlice() bool { + _, isSlice := t.GO.(*types.Slice) + return t.GQL.Elem != nil && isSlice +} + +func (t *TypeReference) IsNamed() bool { + _, isSlice := t.GO.(*types.Named) + return isSlice +} + +func (t *TypeReference) IsStruct() bool { + _, isStruct := t.GO.Underlying().(*types.Struct) + return isStruct +} + +func (t *TypeReference) IsScalar() bool { + return t.Definition.Kind == ast.Scalar +} + +func (t *TypeReference) HasIsZero() bool { + it := t.GO + if ptr, isPtr := it.(*types.Pointer); isPtr { + it = ptr.Elem() + } + namedType, ok := it.(*types.Named) + if !ok { + return false + } + + for i := 0; i < namedType.NumMethods(); i++ { + switch namedType.Method(i).Name() { + case "IsZero": + return true + } + } + return false +} + +func (t *TypeReference) UniquenessKey() string { + var nullability = "O" + if t.GQL.NonNull { + nullability = "N" + } + + return nullability + t.Definition.Name + "2" + templates.TypeIdentifier(t.GO) +} + +func (t *TypeReference) MarshalFunc() string { + if t.Definition == nil { + panic(errors.New("Definition missing for " + t.GQL.Name())) + } + + if t.Definition.Kind == ast.InputObject { + return "" + } + + return "marshal" + t.UniquenessKey() +} + +func (t *TypeReference) UnmarshalFunc() string { + if t.Definition == nil { + panic(errors.New("Definition missing for " + t.GQL.Name())) + } + + if !t.Definition.IsInputType() { + return "" + } + + return "unmarshal" + t.UniquenessKey() +} + +func (b *Binder) PushRef(ret *TypeReference) { + b.References = append(b.References, ret) +} + +func isMap(t types.Type) bool { + if t == nil { + return true + } + _, ok := t.(*types.Map) + return ok +} + +func isIntf(t types.Type) bool { + if t == nil { + return true + } + _, ok := t.(*types.Interface) + return ok +} + +func (b *Binder) TypeReference(schemaType *ast.Type, bindTarget types.Type) (ret *TypeReference, err error) { + var pkgName, typeName string + def := b.schema.Types[schemaType.Name()] + defer func() { + if err == nil && ret != nil { + b.PushRef(ret) + } + }() + + if len(b.cfg.Models[schemaType.Name()].Model) == 0 { + return nil, fmt.Errorf("%s was not found", schemaType.Name()) + } + + for _, model := range b.cfg.Models[schemaType.Name()].Model { + if model == "map[string]interface{}" { + if !isMap(bindTarget) { + continue + } + return &TypeReference{ + Definition: def, + GQL: schemaType, + GO: MapType, + }, nil + } + + if model == "interface{}" { + if !isIntf(bindTarget) { + continue + } + return &TypeReference{ + Definition: def, + GQL: schemaType, + GO: InterfaceType, + }, nil + } + + pkgName, typeName = code.PkgAndType(model) + if pkgName == "" { + return nil, fmt.Errorf("missing package name for %s", schemaType.Name()) + } + + ref := &TypeReference{ + Definition: def, + GQL: schemaType, + } + + obj, err := b.FindObject(pkgName, typeName) + if err != nil { + return nil, err + } + + if fun, isFunc := obj.(*types.Func); isFunc { + ref.GO = fun.Type().(*types.Signature).Params().At(0).Type() + ref.Marshaler = fun + ref.Unmarshaler = types.NewFunc(0, fun.Pkg(), "Unmarshal"+typeName, nil) + } else if hasMethod(obj.Type(), "MarshalGQL") && hasMethod(obj.Type(), "UnmarshalGQL") { + ref.GO = obj.Type() + ref.IsMarshaler = true + } else if underlying := basicUnderlying(obj.Type()); underlying != nil && underlying.Kind() == types.String { + // Special case for named types wrapping strings. Used by default enum implementations. + + ref.GO = obj.Type() + ref.CastType = underlying + + underlyingRef, err := b.TypeReference(&ast.Type{NamedType: "String"}, nil) + if err != nil { + return nil, err + } + + ref.Marshaler = underlyingRef.Marshaler + ref.Unmarshaler = underlyingRef.Unmarshaler + } else { + ref.GO = obj.Type() + } + + ref.GO = b.CopyModifiersFromAst(schemaType, ref.GO) + + if bindTarget != nil { + if err = code.CompatibleTypes(ref.GO, bindTarget); err != nil { + continue + } + ref.GO = bindTarget + } + + return ref, nil + } + + return nil, fmt.Errorf("%s has type compatible with %s", schemaType.Name(), bindTarget.String()) +} + +func (b *Binder) CopyModifiersFromAst(t *ast.Type, base types.Type) types.Type { + if t.Elem != nil { + return types.NewSlice(b.CopyModifiersFromAst(t.Elem, base)) + } + + var isInterface bool + if named, ok := base.(*types.Named); ok { + _, isInterface = named.Underlying().(*types.Interface) + } + + if !isInterface && !t.NonNull { + return types.NewPointer(base) + } + + return base +} + +func hasMethod(it types.Type, name string) bool { + if ptr, isPtr := it.(*types.Pointer); isPtr { + it = ptr.Elem() + } + namedType, ok := it.(*types.Named) + if !ok { + return false + } + + for i := 0; i < namedType.NumMethods(); i++ { + if namedType.Method(i).Name() == name { + return true + } + } + return false +} + +func basicUnderlying(it types.Type) *types.Basic { + if ptr, isPtr := it.(*types.Pointer); isPtr { + it = ptr.Elem() + } + namedType, ok := it.(*types.Named) + if !ok { + return nil + } + + if basic, ok := namedType.Underlying().(*types.Basic); ok { + return basic + } + + return nil +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/config/config.go b/vendor/github.com/99designs/gqlgen/codegen/config/config.go new file mode 100644 index 00000000..0c72420e --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/config/config.go @@ -0,0 +1,408 @@ +package config + +import ( + "fmt" + "go/types" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strings" + + "github.com/99designs/gqlgen/internal/code" + "github.com/pkg/errors" + "github.com/vektah/gqlparser" + "github.com/vektah/gqlparser/ast" + yaml "gopkg.in/yaml.v2" +) + +type Config struct { + SchemaFilename StringList `yaml:"schema,omitempty"` + Exec PackageConfig `yaml:"exec"` + Model PackageConfig `yaml:"model"` + Resolver PackageConfig `yaml:"resolver,omitempty"` + Models TypeMap `yaml:"models,omitempty"` + StructTag string `yaml:"struct_tag,omitempty"` +} + +var cfgFilenames = []string{".gqlgen.yml", "gqlgen.yml", "gqlgen.yaml"} + +// DefaultConfig creates a copy of the default config +func DefaultConfig() *Config { + return &Config{ + SchemaFilename: StringList{"schema.graphql"}, + Model: PackageConfig{Filename: "models_gen.go"}, + Exec: PackageConfig{Filename: "generated.go"}, + } +} + +// LoadConfigFromDefaultLocations looks for a config file in the current directory, and all parent directories +// walking up the tree. The closest config file will be returned. +func LoadConfigFromDefaultLocations() (*Config, error) { + cfgFile, err := findCfg() + if err != nil { + return nil, err + } + + err = os.Chdir(filepath.Dir(cfgFile)) + if err != nil { + return nil, errors.Wrap(err, "unable to enter config dir") + } + return LoadConfig(cfgFile) +} + +// LoadConfig reads the gqlgen.yml config file +func LoadConfig(filename string) (*Config, error) { + config := DefaultConfig() + + b, err := ioutil.ReadFile(filename) + if err != nil { + return nil, errors.Wrap(err, "unable to read config") + } + + if err := yaml.UnmarshalStrict(b, config); err != nil { + return nil, errors.Wrap(err, "unable to parse config") + } + + preGlobbing := config.SchemaFilename + config.SchemaFilename = StringList{} + for _, f := range preGlobbing { + matches, err := filepath.Glob(f) + if err != nil { + return nil, errors.Wrapf(err, "failed to glob schema filename %s", f) + } + + for _, m := range matches { + if config.SchemaFilename.Has(m) { + continue + } + config.SchemaFilename = append(config.SchemaFilename, m) + } + } + + return config, nil +} + +type PackageConfig struct { + Filename string `yaml:"filename,omitempty"` + Package string `yaml:"package,omitempty"` + Type string `yaml:"type,omitempty"` +} + +type TypeMapEntry struct { + Model StringList `yaml:"model"` + Fields map[string]TypeMapField `yaml:"fields,omitempty"` +} + +type TypeMapField struct { + Resolver bool `yaml:"resolver"` + FieldName string `yaml:"fieldName"` +} + +type StringList []string + +func (a *StringList) UnmarshalYAML(unmarshal func(interface{}) error) error { + var single string + err := unmarshal(&single) + if err == nil { + *a = []string{single} + return nil + } + + var multi []string + err = unmarshal(&multi) + if err != nil { + return err + } + + *a = multi + return nil +} + +func (a StringList) Has(file string) bool { + for _, existing := range a { + if existing == file { + return true + } + } + return false +} + +func (c *PackageConfig) normalize() error { + if c.Filename == "" { + return errors.New("Filename is required") + } + c.Filename = abs(c.Filename) + // If Package is not set, first attempt to load the package at the output dir. If that fails + // fallback to just the base dir name of the output filename. + if c.Package == "" { + c.Package = code.NameForPackage(c.ImportPath()) + } + + return nil +} + +func (c *PackageConfig) ImportPath() string { + return code.ImportPathForDir(c.Dir()) +} + +func (c *PackageConfig) Dir() string { + return filepath.Dir(c.Filename) +} + +func (c *PackageConfig) Check() error { + if strings.ContainsAny(c.Package, "./\\") { + return fmt.Errorf("package should be the output package name only, do not include the output filename") + } + if c.Filename != "" && !strings.HasSuffix(c.Filename, ".go") { + return fmt.Errorf("filename should be path to a go source file") + } + + return c.normalize() +} + +func (c *PackageConfig) Pkg() *types.Package { + return types.NewPackage(c.ImportPath(), c.Dir()) +} + +func (c *PackageConfig) IsDefined() bool { + return c.Filename != "" +} + +func (c *Config) Check() error { + if err := c.Models.Check(); err != nil { + return errors.Wrap(err, "config.models") + } + if err := c.Exec.Check(); err != nil { + return errors.Wrap(err, "config.exec") + } + if err := c.Model.Check(); err != nil { + return errors.Wrap(err, "config.model") + } + if c.Resolver.IsDefined() { + if err := c.Resolver.Check(); err != nil { + return errors.Wrap(err, "config.resolver") + } + } + + // check packages names against conflict, if present in the same dir + // and check filenames for uniqueness + packageConfigList := []PackageConfig{ + c.Model, + c.Exec, + c.Resolver, + } + filesMap := make(map[string]bool) + pkgConfigsByDir := make(map[string]PackageConfig) + for _, current := range packageConfigList { + _, fileFound := filesMap[current.Filename] + if fileFound { + return fmt.Errorf("filename %s defined more than once", current.Filename) + } + filesMap[current.Filename] = true + previous, inSameDir := pkgConfigsByDir[current.Dir()] + if inSameDir && current.Package != previous.Package { + return fmt.Errorf("filenames %s and %s are in the same directory but have different package definitions", stripPath(current.Filename), stripPath(previous.Filename)) + } + pkgConfigsByDir[current.Dir()] = current + } + + return c.normalize() +} + +func stripPath(path string) string { + return filepath.Base(path) +} + +type TypeMap map[string]TypeMapEntry + +func (tm TypeMap) Exists(typeName string) bool { + _, ok := tm[typeName] + return ok +} + +func (tm TypeMap) UserDefined(typeName string) bool { + m, ok := tm[typeName] + return ok && len(m.Model) > 0 +} + +func (tm TypeMap) Check() error { + for typeName, entry := range tm { + for _, model := range entry.Model { + if strings.LastIndex(model, ".") < strings.LastIndex(model, "/") { + return fmt.Errorf("model %s: invalid type specifier \"%s\" - you need to specify a struct to map to", typeName, entry.Model) + } + } + } + return nil +} + +func (tm TypeMap) ReferencedPackages() []string { + var pkgs []string + + for _, typ := range tm { + for _, model := range typ.Model { + if model == "map[string]interface{}" || model == "interface{}" { + continue + } + pkg, _ := code.PkgAndType(model) + if pkg == "" || inStrSlice(pkgs, pkg) { + continue + } + pkgs = append(pkgs, code.QualifyPackagePath(pkg)) + } + } + + sort.Slice(pkgs, func(i, j int) bool { + return pkgs[i] > pkgs[j] + }) + return pkgs +} + +func (tm TypeMap) Add(Name string, goType string) { + modelCfg := tm[Name] + modelCfg.Model = append(modelCfg.Model, goType) + tm[Name] = modelCfg +} + +func inStrSlice(haystack []string, needle string) bool { + for _, v := range haystack { + if needle == v { + return true + } + } + + return false +} + +// findCfg searches for the config file in this directory and all parents up the tree +// looking for the closest match +func findCfg() (string, error) { + dir, err := os.Getwd() + if err != nil { + return "", errors.Wrap(err, "unable to get working dir to findCfg") + } + + cfg := findCfgInDir(dir) + + for cfg == "" && dir != filepath.Dir(dir) { + dir = filepath.Dir(dir) + cfg = findCfgInDir(dir) + } + + if cfg == "" { + return "", os.ErrNotExist + } + + return cfg, nil +} + +func findCfgInDir(dir string) string { + for _, cfgName := range cfgFilenames { + path := filepath.Join(dir, cfgName) + if _, err := os.Stat(path); err == nil { + return path + } + } + return "" +} + +func (c *Config) normalize() error { + if err := c.Model.normalize(); err != nil { + return errors.Wrap(err, "model") + } + + if err := c.Exec.normalize(); err != nil { + return errors.Wrap(err, "exec") + } + + if c.Resolver.IsDefined() { + if err := c.Resolver.normalize(); err != nil { + return errors.Wrap(err, "resolver") + } + } + + if c.Models == nil { + c.Models = TypeMap{} + } + + return nil +} + +func (c *Config) InjectBuiltins(s *ast.Schema) { + builtins := TypeMap{ + "__Directive": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.Directive"}}, + "__DirectiveLocation": {Model: StringList{"github.com/99designs/gqlgen/graphql.String"}}, + "__Type": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.Type"}}, + "__TypeKind": {Model: StringList{"github.com/99designs/gqlgen/graphql.String"}}, + "__Field": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.Field"}}, + "__EnumValue": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.EnumValue"}}, + "__InputValue": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.InputValue"}}, + "__Schema": {Model: StringList{"github.com/99designs/gqlgen/graphql/introspection.Schema"}}, + "Float": {Model: StringList{"github.com/99designs/gqlgen/graphql.Float"}}, + "String": {Model: StringList{"github.com/99designs/gqlgen/graphql.String"}}, + "Boolean": {Model: StringList{"github.com/99designs/gqlgen/graphql.Boolean"}}, + "Int": {Model: StringList{ + "github.com/99designs/gqlgen/graphql.Int", + "github.com/99designs/gqlgen/graphql.Int32", + "github.com/99designs/gqlgen/graphql.Int64", + }}, + "ID": { + Model: StringList{ + "github.com/99designs/gqlgen/graphql.ID", + "github.com/99designs/gqlgen/graphql.IntID", + }, + }, + } + + for typeName, entry := range builtins { + if !c.Models.Exists(typeName) { + c.Models[typeName] = entry + } + } + + // These are additional types that are injected if defined in the schema as scalars. + extraBuiltins := TypeMap{ + "Time": {Model: StringList{"github.com/99designs/gqlgen/graphql.Time"}}, + "Map": {Model: StringList{"github.com/99designs/gqlgen/graphql.Map"}}, + } + + for typeName, entry := range extraBuiltins { + if t, ok := s.Types[typeName]; !c.Models.Exists(typeName) && ok && t.Kind == ast.Scalar { + c.Models[typeName] = entry + } + } +} + +func (c *Config) LoadSchema() (*ast.Schema, map[string]string, error) { + schemaStrings := map[string]string{} + + var sources []*ast.Source + + for _, filename := range c.SchemaFilename { + filename = filepath.ToSlash(filename) + var err error + var schemaRaw []byte + schemaRaw, err = ioutil.ReadFile(filename) + if err != nil { + fmt.Fprintln(os.Stderr, "unable to open schema: "+err.Error()) + os.Exit(1) + } + schemaStrings[filename] = string(schemaRaw) + sources = append(sources, &ast.Source{Name: filename, Input: schemaStrings[filename]}) + } + + schema, err := gqlparser.LoadSchema(sources...) + if err != nil { + return nil, nil, err + } + return schema, schemaStrings, nil +} + +func abs(path string) string { + absPath, err := filepath.Abs(path) + if err != nil { + panic(err) + } + return filepath.ToSlash(absPath) +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/data.go b/vendor/github.com/99designs/gqlgen/codegen/data.go new file mode 100644 index 00000000..f2ea70b4 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/data.go @@ -0,0 +1,168 @@ +package codegen + +import ( + "fmt" + "sort" + + "github.com/99designs/gqlgen/codegen/config" + "github.com/pkg/errors" + "github.com/vektah/gqlparser/ast" +) + +// Data is a unified model of the code to be generated. Plugins may modify this structure to do things like implement +// resolvers or directives automatically (eg grpc, validation) +type Data struct { + Config *config.Config + Schema *ast.Schema + SchemaStr map[string]string + Directives map[string]*Directive + Objects Objects + Inputs Objects + Interfaces map[string]*Interface + ReferencedTypes map[string]*config.TypeReference + ComplexityRoots map[string]*Object + + QueryRoot *Object + MutationRoot *Object + SubscriptionRoot *Object +} + +type builder struct { + Config *config.Config + Schema *ast.Schema + SchemaStr map[string]string + Binder *config.Binder + Directives map[string]*Directive +} + +func BuildData(cfg *config.Config) (*Data, error) { + b := builder{ + Config: cfg, + } + + var err error + b.Schema, b.SchemaStr, err = cfg.LoadSchema() + if err != nil { + return nil, err + } + + err = cfg.Check() + if err != nil { + return nil, err + } + + cfg.InjectBuiltins(b.Schema) + + b.Binder, err = b.Config.NewBinder(b.Schema) + if err != nil { + return nil, err + } + + b.Directives, err = b.buildDirectives() + if err != nil { + return nil, err + } + + dataDirectives := make(map[string]*Directive) + for name, d := range b.Directives { + if !d.Builtin { + dataDirectives[name] = d + } + } + + s := Data{ + Config: cfg, + Directives: dataDirectives, + Schema: b.Schema, + SchemaStr: b.SchemaStr, + Interfaces: map[string]*Interface{}, + } + + for _, schemaType := range b.Schema.Types { + switch schemaType.Kind { + case ast.Object: + obj, err := b.buildObject(schemaType) + if err != nil { + return nil, errors.Wrap(err, "unable to build object definition") + } + + s.Objects = append(s.Objects, obj) + case ast.InputObject: + input, err := b.buildObject(schemaType) + if err != nil { + return nil, errors.Wrap(err, "unable to build input definition") + } + + s.Inputs = append(s.Inputs, input) + + case ast.Union, ast.Interface: + s.Interfaces[schemaType.Name] = b.buildInterface(schemaType) + } + } + + if s.Schema.Query != nil { + s.QueryRoot = s.Objects.ByName(s.Schema.Query.Name) + } else { + return nil, fmt.Errorf("query entry point missing") + } + + if s.Schema.Mutation != nil { + s.MutationRoot = s.Objects.ByName(s.Schema.Mutation.Name) + } + + if s.Schema.Subscription != nil { + s.SubscriptionRoot = s.Objects.ByName(s.Schema.Subscription.Name) + } + + if err := b.injectIntrospectionRoots(&s); err != nil { + return nil, err + } + + s.ReferencedTypes, err = b.buildTypes() + if err != nil { + return nil, err + } + + sort.Slice(s.Objects, func(i, j int) bool { + return s.Objects[i].Definition.Name < s.Objects[j].Definition.Name + }) + + sort.Slice(s.Inputs, func(i, j int) bool { + return s.Inputs[i].Definition.Name < s.Inputs[j].Definition.Name + }) + + return &s, nil +} + +func (b *builder) injectIntrospectionRoots(s *Data) error { + obj := s.Objects.ByName(b.Schema.Query.Name) + if obj == nil { + return fmt.Errorf("root query type must be defined") + } + + __type, err := b.buildField(obj, &ast.FieldDefinition{ + Name: "__type", + Type: ast.NamedType("__Type", nil), + Arguments: []*ast.ArgumentDefinition{ + { + Name: "name", + Type: ast.NonNullNamedType("String", nil), + }, + }, + }) + if err != nil { + return err + } + + __schema, err := b.buildField(obj, &ast.FieldDefinition{ + Name: "__schema", + Type: ast.NamedType("__Schema", nil), + }) + if err != nil { + return err + } + + obj.Fields = append(obj.Fields, __type, __schema) + + return nil +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/directive.go b/vendor/github.com/99designs/gqlgen/codegen/directive.go index 8017da06..5a27e8ac 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/directive.go +++ b/vendor/github.com/99designs/gqlgen/codegen/directive.go @@ -4,11 +4,101 @@ import ( "fmt" "strconv" "strings" + + "github.com/99designs/gqlgen/codegen/templates" + "github.com/pkg/errors" + "github.com/vektah/gqlparser/ast" ) type Directive struct { - Name string - Args []FieldArgument + Name string + Args []*FieldArgument + Builtin bool +} + +func (b *builder) buildDirectives() (map[string]*Directive, error) { + directives := make(map[string]*Directive, len(b.Schema.Directives)) + + for name, dir := range b.Schema.Directives { + if _, ok := directives[name]; ok { + return nil, errors.Errorf("directive with name %s already exists", name) + } + + var builtin bool + if name == "skip" || name == "include" || name == "deprecated" { + builtin = true + } + + var args []*FieldArgument + for _, arg := range dir.Arguments { + tr, err := b.Binder.TypeReference(arg.Type, nil) + if err != nil { + return nil, err + } + + newArg := &FieldArgument{ + ArgumentDefinition: arg, + TypeReference: tr, + VarName: templates.ToGoPrivate(arg.Name), + } + + if arg.DefaultValue != nil { + var err error + newArg.Default, err = arg.DefaultValue.Value(nil) + if err != nil { + return nil, errors.Errorf("default value for directive argument %s(%s) is not valid: %s", dir.Name, arg.Name, err.Error()) + } + } + args = append(args, newArg) + } + + directives[name] = &Directive{ + Name: name, + Args: args, + Builtin: builtin, + } + } + + return directives, nil +} + +func (b *builder) getDirectives(list ast.DirectiveList) ([]*Directive, error) { + dirs := make([]*Directive, len(list)) + for i, d := range list { + argValues := make(map[string]interface{}, len(d.Arguments)) + for _, da := range d.Arguments { + val, err := da.Value.Value(nil) + if err != nil { + return nil, err + } + argValues[da.Name] = val + } + def, ok := b.Directives[d.Name] + if !ok { + return nil, fmt.Errorf("directive %s not found", d.Name) + } + + var args []*FieldArgument + for _, a := range def.Args { + value := a.Default + if argValue, ok := argValues[a.Name]; ok { + value = argValue + } + args = append(args, &FieldArgument{ + ArgumentDefinition: a.ArgumentDefinition, + Value: value, + VarName: a.VarName, + TypeReference: a.TypeReference, + }) + } + dirs[i] = &Directive{ + Name: d.Name, + Args: args, + } + + } + + return dirs, nil } func (d *Directive) ArgsFunc() string { @@ -23,7 +113,28 @@ func (d *Directive) CallArgs() string { args := []string{"ctx", "obj", "n"} for _, arg := range d.Args { - args = append(args, "args["+strconv.Quote(arg.GQLName)+"].("+arg.Signature()+")") + args = append(args, "args["+strconv.Quote(arg.Name)+"].("+templates.CurrentImports.LookupType(arg.TypeReference.GO)+")") + } + + return strings.Join(args, ", ") +} + +func (d *Directive) ResolveArgs(obj string, next string) string { + args := []string{"ctx", obj, next} + + for _, arg := range d.Args { + dArg := "&" + arg.VarName + if !arg.TypeReference.IsPtr() { + if arg.Value != nil { + dArg = templates.Dump(arg.Value) + } else { + dArg = templates.Dump(arg.Default) + } + } else if arg.Value == nil && arg.Default == nil { + dArg = "nil" + } + + args = append(args, dArg) } return strings.Join(args, ", ") @@ -33,7 +144,7 @@ func (d *Directive) Declaration() string { res := ucFirst(d.Name) + " func(ctx context.Context, obj interface{}, next graphql.Resolver" for _, arg := range d.Args { - res += fmt.Sprintf(", %s %s", arg.GoVarName, arg.Signature()) + res += fmt.Sprintf(", %s %s", arg.Name, templates.CurrentImports.LookupType(arg.TypeReference.GO)) } res += ") (res interface{}, err error)" diff --git a/vendor/github.com/99designs/gqlgen/codegen/directive_build.go b/vendor/github.com/99designs/gqlgen/codegen/directive_build.go deleted file mode 100644 index af77dc44..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/directive_build.go +++ /dev/null @@ -1,48 +0,0 @@ -package codegen - -import ( - "sort" - - "github.com/pkg/errors" -) - -func (cfg *Config) buildDirectives(types NamedTypes) ([]*Directive, error) { - var directives []*Directive - - for name, dir := range cfg.schema.Directives { - if name == "skip" || name == "include" || name == "deprecated" { - continue - } - - var args []FieldArgument - for _, arg := range dir.Arguments { - newArg := FieldArgument{ - GQLName: arg.Name, - Type: types.getType(arg.Type), - GoVarName: sanitizeArgName(arg.Name), - } - - if !newArg.Type.IsInput && !newArg.Type.IsScalar { - return nil, errors.Errorf("%s cannot be used as argument of directive %s(%s) only input and scalar types are allowed", arg.Type, dir.Name, arg.Name) - } - - if arg.DefaultValue != nil { - var err error - newArg.Default, err = arg.DefaultValue.Value(nil) - if err != nil { - return nil, errors.Errorf("default value for directive argument %s(%s) is not valid: %s", dir.Name, arg.Name, err.Error()) - } - } - args = append(args, newArg) - } - - directives = append(directives, &Directive{ - Name: name, - Args: args, - }) - } - - sort.Slice(directives, func(i, j int) bool { return directives[i].Name < directives[j].Name }) - - return directives, nil -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/enum.go b/vendor/github.com/99designs/gqlgen/codegen/enum.go deleted file mode 100644 index 7804971c..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/enum.go +++ /dev/null @@ -1,12 +0,0 @@ -package codegen - -type Enum struct { - *NamedType - Description string - Values []EnumValue -} - -type EnumValue struct { - Name string - Description string -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/enum_build.go b/vendor/github.com/99designs/gqlgen/codegen/enum_build.go deleted file mode 100644 index 457d923f..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/enum_build.go +++ /dev/null @@ -1,39 +0,0 @@ -package codegen - -import ( - "sort" - "strings" - - "github.com/99designs/gqlgen/codegen/templates" - "github.com/vektah/gqlparser/ast" -) - -func (cfg *Config) buildEnums(types NamedTypes) []Enum { - var enums []Enum - - for _, typ := range cfg.schema.Types { - namedType := types[typ.Name] - if typ.Kind != ast.Enum || strings.HasPrefix(typ.Name, "__") || namedType.IsUserDefined { - continue - } - - var values []EnumValue - for _, v := range typ.EnumValues { - values = append(values, EnumValue{v.Name, v.Description}) - } - - enum := Enum{ - NamedType: namedType, - Values: values, - Description: typ.Description, - } - enum.GoType = templates.ToCamel(enum.GQLType) - enums = append(enums, enum) - } - - sort.Slice(enums, func(i, j int) bool { - return enums[i].GQLType < enums[j].GQLType - }) - - return enums -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/field.go b/vendor/github.com/99designs/gqlgen/codegen/field.go new file mode 100644 index 00000000..f5f7b221 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/field.go @@ -0,0 +1,394 @@ +package codegen + +import ( + "fmt" + "go/types" + "log" + "reflect" + "strconv" + "strings" + + "github.com/99designs/gqlgen/codegen/config" + "github.com/99designs/gqlgen/codegen/templates" + "github.com/pkg/errors" + "github.com/vektah/gqlparser/ast" +) + +type Field struct { + *ast.FieldDefinition + + TypeReference *config.TypeReference + GoFieldType GoFieldType // The field type in go, if any + GoReceiverName string // The name of method & var receiver in go, if any + GoFieldName string // The name of the method or var in go, if any + IsResolver bool // Does this field need a resolver + Args []*FieldArgument // A list of arguments to be passed to this field + MethodHasContext bool // If this is bound to a go method, does the method also take a context + NoErr bool // If this is bound to a go method, does that method have an error as the second argument + Object *Object // A link back to the parent object + Default interface{} // The default value + Directives []*Directive +} + +func (b *builder) buildField(obj *Object, field *ast.FieldDefinition) (*Field, error) { + dirs, err := b.getDirectives(field.Directives) + if err != nil { + return nil, err + } + + f := Field{ + FieldDefinition: field, + Object: obj, + Directives: dirs, + GoFieldName: templates.ToGo(field.Name), + GoFieldType: GoFieldVariable, + GoReceiverName: "obj", + } + + if field.DefaultValue != nil { + var err error + f.Default, err = field.DefaultValue.Value(nil) + if err != nil { + return nil, errors.Errorf("default value %s is not valid: %s", field.Name, err.Error()) + } + } + + for _, arg := range field.Arguments { + newArg, err := b.buildArg(obj, arg) + if err != nil { + return nil, err + } + f.Args = append(f.Args, newArg) + } + + if err = b.bindField(obj, &f); err != nil { + f.IsResolver = true + log.Println(err.Error()) + } + + if f.IsResolver && !f.TypeReference.IsPtr() && f.TypeReference.IsStruct() { + f.TypeReference = b.Binder.PointerTo(f.TypeReference) + } + + return &f, nil +} + +func (b *builder) bindField(obj *Object, f *Field) error { + defer func() { + if f.TypeReference == nil { + tr, err := b.Binder.TypeReference(f.Type, nil) + if err != nil { + panic(err) + } + f.TypeReference = tr + } + }() + + switch { + case f.Name == "__schema": + f.GoFieldType = GoFieldMethod + f.GoReceiverName = "ec" + f.GoFieldName = "introspectSchema" + return nil + case f.Name == "__type": + f.GoFieldType = GoFieldMethod + f.GoReceiverName = "ec" + f.GoFieldName = "introspectType" + return nil + case obj.Root: + f.IsResolver = true + return nil + case b.Config.Models[obj.Name].Fields[f.Name].Resolver: + f.IsResolver = true + return nil + case obj.Type == config.MapType: + f.GoFieldType = GoFieldMap + return nil + case b.Config.Models[obj.Name].Fields[f.Name].FieldName != "": + f.GoFieldName = b.Config.Models[obj.Name].Fields[f.Name].FieldName + } + + target, err := b.findBindTarget(obj.Type.(*types.Named), f.GoFieldName) + if err != nil { + return err + } + + pos := b.Binder.ObjectPosition(target) + + switch target := target.(type) { + case nil: + objPos := b.Binder.TypePosition(obj.Type) + return fmt.Errorf( + "%s:%d adding resolver method for %s.%s, nothing matched", + objPos.Filename, + objPos.Line, + obj.Name, + f.Name, + ) + + case *types.Func: + sig := target.Type().(*types.Signature) + if sig.Results().Len() == 1 { + f.NoErr = true + } else if sig.Results().Len() != 2 { + return fmt.Errorf("method has wrong number of args") + } + params := sig.Params() + // If the first argument is the context, remove it from the comparison and set + // the MethodHasContext flag so that the context will be passed to this model's method + if params.Len() > 0 && params.At(0).Type().String() == "context.Context" { + f.MethodHasContext = true + vars := make([]*types.Var, params.Len()-1) + for i := 1; i < params.Len(); i++ { + vars[i-1] = params.At(i) + } + params = types.NewTuple(vars...) + } + + if err = b.bindArgs(f, params); err != nil { + return errors.Wrapf(err, "%s:%d", pos.Filename, pos.Line) + } + + result := sig.Results().At(0) + tr, err := b.Binder.TypeReference(f.Type, result.Type()) + if err != nil { + return err + } + + // success, args and return type match. Bind to method + f.GoFieldType = GoFieldMethod + f.GoReceiverName = "obj" + f.GoFieldName = target.Name() + f.TypeReference = tr + + return nil + + case *types.Var: + tr, err := b.Binder.TypeReference(f.Type, target.Type()) + if err != nil { + return err + } + + // success, bind to var + f.GoFieldType = GoFieldVariable + f.GoReceiverName = "obj" + f.GoFieldName = target.Name() + f.TypeReference = tr + + return nil + default: + panic(fmt.Errorf("unknown bind target %T for %s", target, f.Name)) + } +} + +// findField attempts to match the name to a struct field with the following +// priorites: +// 1. Any method with a matching name +// 2. Any Fields with a struct tag (see config.StructTag) +// 3. Any fields with a matching name +// 4. Same logic again for embedded fields +func (b *builder) findBindTarget(named *types.Named, name string) (types.Object, error) { + for i := 0; i < named.NumMethods(); i++ { + method := named.Method(i) + if !method.Exported() { + continue + } + + if !strings.EqualFold(method.Name(), name) { + continue + } + + return method, nil + } + + strukt, ok := named.Underlying().(*types.Struct) + if !ok { + return nil, fmt.Errorf("not a struct") + } + return b.findBindStructTarget(strukt, name) +} + +func (b *builder) findBindStructTarget(strukt *types.Struct, name string) (types.Object, error) { + // struct tags have the highest priority + if b.Config.StructTag != "" { + var foundField *types.Var + for i := 0; i < strukt.NumFields(); i++ { + field := strukt.Field(i) + if !field.Exported() { + continue + } + tags := reflect.StructTag(strukt.Tag(i)) + if val, ok := tags.Lookup(b.Config.StructTag); ok && equalFieldName(val, name) { + if foundField != nil { + return nil, errors.Errorf("tag %s is ambigious; multiple fields have the same tag value of %s", b.Config.StructTag, val) + } + + foundField = field + } + } + if foundField != nil { + return foundField, nil + } + } + + // Then matching field names + for i := 0; i < strukt.NumFields(); i++ { + field := strukt.Field(i) + if !field.Exported() { + continue + } + if equalFieldName(field.Name(), name) { // aqui! + return field, nil + } + } + + // Then look in embedded structs + for i := 0; i < strukt.NumFields(); i++ { + field := strukt.Field(i) + if !field.Exported() { + continue + } + + if !field.Anonymous() { + continue + } + + fieldType := field.Type() + if ptr, ok := fieldType.(*types.Pointer); ok { + fieldType = ptr.Elem() + } + + switch fieldType := fieldType.(type) { + case *types.Named: + f, err := b.findBindTarget(fieldType, name) + if err != nil { + return nil, err + } + if f != nil { + return f, nil + } + case *types.Struct: + f, err := b.findBindStructTarget(fieldType, name) + if err != nil { + return nil, err + } + if f != nil { + return f, nil + } + default: + panic(fmt.Errorf("unknown embedded field type %T", field.Type())) + } + } + + return nil, nil +} + +func (f *Field) HasDirectives() bool { + return len(f.Directives) > 0 +} + +func (f *Field) IsReserved() bool { + return strings.HasPrefix(f.Name, "__") +} + +func (f *Field) IsMethod() bool { + return f.GoFieldType == GoFieldMethod +} + +func (f *Field) IsVariable() bool { + return f.GoFieldType == GoFieldVariable +} + +func (f *Field) IsMap() bool { + return f.GoFieldType == GoFieldMap +} + +func (f *Field) IsConcurrent() bool { + if f.Object.DisableConcurrency { + return false + } + return f.MethodHasContext || f.IsResolver +} + +func (f *Field) GoNameUnexported() string { + return templates.ToGoPrivate(f.Name) +} + +func (f *Field) ShortInvocation() string { + return fmt.Sprintf("%s().%s(%s)", f.Object.Definition.Name, f.GoFieldName, f.CallArgs()) +} + +func (f *Field) ArgsFunc() string { + if len(f.Args) == 0 { + return "" + } + + return "field_" + f.Object.Definition.Name + "_" + f.Name + "_args" +} + +func (f *Field) ResolverType() string { + if !f.IsResolver { + return "" + } + + return fmt.Sprintf("%s().%s(%s)", f.Object.Definition.Name, f.GoFieldName, f.CallArgs()) +} + +func (f *Field) ShortResolverDeclaration() string { + res := "(ctx context.Context" + + if !f.Object.Root { + res += fmt.Sprintf(", obj *%s", templates.CurrentImports.LookupType(f.Object.Type)) + } + for _, arg := range f.Args { + res += fmt.Sprintf(", %s %s", arg.VarName, templates.CurrentImports.LookupType(arg.TypeReference.GO)) + } + + result := templates.CurrentImports.LookupType(f.TypeReference.GO) + if f.Object.Stream { + result = "<-chan " + result + } + + res += fmt.Sprintf(") (%s, error)", result) + return res +} + +func (f *Field) ComplexitySignature() string { + res := fmt.Sprintf("func(childComplexity int") + for _, arg := range f.Args { + res += fmt.Sprintf(", %s %s", arg.VarName, templates.CurrentImports.LookupType(arg.TypeReference.GO)) + } + res += ") int" + return res +} + +func (f *Field) ComplexityArgs() string { + var args []string + for _, arg := range f.Args { + args = append(args, "args["+strconv.Quote(arg.Name)+"].("+templates.CurrentImports.LookupType(arg.TypeReference.GO)+")") + } + + return strings.Join(args, ", ") +} + +func (f *Field) CallArgs() string { + var args []string + + if f.IsResolver { + args = append(args, "rctx") + + if !f.Object.Root { + args = append(args, "obj") + } + } else { + if f.MethodHasContext { + args = append(args, "ctx") + } + } + + for _, arg := range f.Args { + args = append(args, "args["+strconv.Quote(arg.Name)+"].("+templates.CurrentImports.LookupType(arg.TypeReference.GO)+")") + } + + return strings.Join(args, ", ") +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/field.gotpl b/vendor/github.com/99designs/gqlgen/codegen/field.gotpl index 3df847fa..9718a08a 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/field.gotpl +++ b/vendor/github.com/99designs/gqlgen/codegen/field.gotpl @@ -1,19 +1,19 @@ -{{ $field := . }} -{{ $object := $field.Object }} +{{- range $object := .Objects }}{{- range $field := $object.Fields }} {{- if $object.Stream }} - func (ec *executionContext) _{{$object.GQLType}}_{{$field.GQLName}}(ctx context.Context, field graphql.CollectedField) func() graphql.Marshaler { + func (ec *executionContext) _{{$object.Name}}_{{$field.Name}}(ctx context.Context, field graphql.CollectedField) func() graphql.Marshaler { + ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ + Field: field, + Args: nil, + }) {{- if $field.Args }} rawArgs := field.ArgumentMap(ec.Variables) - args, err := {{ $field.ArgsFunc }}(rawArgs) + args, err := ec.{{ $field.ArgsFunc }}(ctx,rawArgs) if err != nil { ec.Error(ctx, err) return nil } {{- end }} - ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ - Field: field, - }) // FIXME: subscriptions are missing request middleware stack https://github.com/99designs/gqlgen/issues/259 // and Tracer stack rctx := ctx @@ -27,35 +27,51 @@ if !ok { return nil } - var out graphql.OrderedMap - out.Add(field.Alias, func() graphql.Marshaler { {{ $field.WriteJson }} }()) - return &out + return graphql.WriterFunc(func(w io.Writer) { + w.Write([]byte{'{'}) + graphql.MarshalString(field.Alias).MarshalGQL(w) + w.Write([]byte{':'}) + ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res).MarshalGQL(w) + w.Write([]byte{'}'}) + }) } } {{ else }} - // nolint: vetshadow - func (ec *executionContext) _{{$object.GQLType}}_{{$field.GQLName}}(ctx context.Context, field graphql.CollectedField, {{if not $object.Root}}obj *{{$object.FullName}}{{end}}) graphql.Marshaler { + func (ec *executionContext) _{{$object.Name}}_{{$field.Name}}(ctx context.Context, field graphql.CollectedField{{ if not $object.Root }}, obj {{$object.Reference | ref}}{{end}}) graphql.Marshaler { ctx = ec.Tracer.StartFieldExecution(ctx, field) defer func () { ec.Tracer.EndFieldExecution(ctx) }() + rctx := &graphql.ResolverContext{ + Object: {{$object.Name|quote}}, + Field: field, + Args: nil, + IsMethod: {{or $field.IsMethod $field.IsResolver}}, + } + ctx = graphql.WithResolverContext(ctx, rctx) {{- if $field.Args }} rawArgs := field.ArgumentMap(ec.Variables) - args, err := {{ $field.ArgsFunc }}(rawArgs) + args, err := ec.{{ $field.ArgsFunc }}(ctx,rawArgs) if err != nil { ec.Error(ctx, err) return graphql.Null } + rctx.Args = args {{- end }} - rctx := &graphql.ResolverContext{ - Object: {{$object.GQLType|quote}}, - Args: {{if $field.Args }}args{{else}}nil{{end}}, - Field: field, - } - ctx = graphql.WithResolverContext(ctx, rctx) ctx = ec.Tracer.StartFieldResolverExecution(ctx, rctx) resTmp := ec.FieldMiddleware(ctx, {{if $object.Root}}nil{{else}}obj{{end}}, func(rctx context.Context) (interface{}, error) { ctx = rctx // use context from middleware stack in children {{- if $field.IsResolver }} return ec.resolvers.{{ $field.ShortInvocation }} + {{- else if $field.IsMap }} + switch v := {{$field.GoReceiverName}}[{{$field.Name|quote}}].(type) { + case {{$field.TypeReference.GO | ref}}: + return v, nil + case {{$field.TypeReference.Elem.GO | ref}}: + return &v, nil + case nil: + return ({{$field.TypeReference.GO | ref}})(nil), nil + default: + return nil, fmt.Errorf("unexpected type %T for field %s", v, {{ $field.Name | quote}}) + } {{- else if $field.IsMethod }} {{- if $field.NoErr }} return {{$field.GoReceiverName}}.{{$field.GoFieldName}}({{ $field.CallArgs }}), nil @@ -67,16 +83,18 @@ {{- end }} }) if resTmp == nil { - {{- if $field.ASTType.NonNull }} + {{- if $field.TypeReference.GQL.NonNull }} if !ec.HasError(rctx) { ec.Errorf(ctx, "must not be null") } {{- end }} return graphql.Null } - res := resTmp.({{$field.Signature}}) + res := resTmp.({{$field.TypeReference.GO | ref}}) rctx.Result = res ctx = ec.Tracer.StartFieldChildExecution(ctx) - {{ $field.WriteJson }} + return ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res) } {{ end }} + +{{- end }}{{- end}} diff --git a/vendor/github.com/99designs/gqlgen/codegen/generate.go b/vendor/github.com/99designs/gqlgen/codegen/generate.go new file mode 100644 index 00000000..eafa3f87 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/generate.go @@ -0,0 +1,15 @@ +package codegen + +import ( + "github.com/99designs/gqlgen/codegen/templates" +) + +func GenerateCode(data *Data) error { + return templates.Render(templates.Options{ + PackageName: data.Config.Exec.Package, + Filename: data.Config.Exec.Filename, + Data: data, + RegionTags: true, + GeneratedHeader: true, + }) +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/generated.gotpl b/vendor/github.com/99designs/gqlgen/codegen/generated!.gotpl index a37a1613..dce8ce97 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/generated.gotpl +++ b/vendor/github.com/99designs/gqlgen/codegen/generated!.gotpl @@ -1,24 +1,17 @@ -// Code generated by github.com/99designs/gqlgen, DO NOT EDIT. +{{ reserveImport "context" }} +{{ reserveImport "fmt" }} +{{ reserveImport "io" }} +{{ reserveImport "strconv" }} +{{ reserveImport "time" }} +{{ reserveImport "sync" }} +{{ reserveImport "errors" }} +{{ reserveImport "bytes" }} -package {{ .PackageName }} +{{ reserveImport "github.com/vektah/gqlparser" }} +{{ reserveImport "github.com/vektah/gqlparser/ast" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} -import ( - %%%IMPORTS%%% - - {{ reserveImport "context" }} - {{ reserveImport "fmt" }} - {{ reserveImport "io" }} - {{ reserveImport "strconv" }} - {{ reserveImport "time" }} - {{ reserveImport "sync" }} - {{ reserveImport "errors" }} - {{ reserveImport "bytes" }} - - {{ reserveImport "github.com/vektah/gqlparser" }} - {{ reserveImport "github.com/vektah/gqlparser/ast" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} -) // NewExecutableSchema creates an ExecutableSchema from the ResolverRoot interface. func NewExecutableSchema(cfg Config) graphql.ExecutableSchema { @@ -38,7 +31,7 @@ type Config struct { type ResolverRoot interface { {{- range $object := .Objects -}} {{ if $object.HasResolvers -}} - {{$object.GQLType}}() {{$object.GQLType}}Resolver + {{$object.Name}}() {{$object.Name}}Resolver {{ end }} {{- end }} } @@ -52,10 +45,10 @@ type DirectiveRoot struct { type ComplexityRoot struct { {{ range $object := .Objects }} {{ if not $object.IsReserved -}} - {{ $object.GQLType|toCamel }} struct { - {{ range $field := $object.Fields -}} + {{ $object.Name|go }} struct { + {{ range $field := $object.UniqueFields -}} {{ if not $field.IsReserved -}} - {{ $field.GQLName|toCamel }} {{ $field.ComplexitySignature }} + {{ $field.GoFieldName }} {{ $field.ComplexitySignature }} {{ end }} {{- end }} } @@ -65,32 +58,16 @@ type ComplexityRoot struct { {{ range $object := .Objects -}} {{ if $object.HasResolvers }} - type {{$object.GQLType}}Resolver interface { + type {{$object.Name}}Resolver interface { {{ range $field := $object.Fields -}} - {{ $field.ShortResolverDeclaration }} + {{- if $field.IsResolver }} + {{- $field.GoFieldName}}{{ $field.ShortResolverDeclaration }} + {{- end }} {{ end }} } {{- end }} {{- end }} -{{ range $object := .Objects -}} - {{ range $field := $object.Fields -}} - {{ if $field.Args }} - func {{ $field.ArgsFunc }}(rawArgs map[string]interface{}) (map[string]interface{}, error) { - {{ template "args.gotpl" $field.Args }} - } - {{ end }} - {{ end }} -{{- end }} - -{{ range $directive := .Directives }} - {{ if $directive.Args }} - func {{ $directive.ArgsFunc }}(rawArgs map[string]interface{}) (map[string]interface{}, error) { - {{ template "args.gotpl" $directive.Args }} - } - {{ end }} -{{ end }} - type executableSchema struct { resolvers ResolverRoot directives DirectiveRoot @@ -102,22 +79,24 @@ func (e *executableSchema) Schema() *ast.Schema { } func (e *executableSchema) Complexity(typeName, field string, childComplexity int, rawArgs map[string]interface{}) (int, bool) { + ec := executionContext{nil, e} + _ = ec switch typeName + "." + field { {{ range $object := .Objects }} {{ if not $object.IsReserved }} - {{ range $field := $object.Fields }} + {{ range $field := $object.UniqueFields }} {{ if not $field.IsReserved }} - case "{{$object.GQLType}}.{{$field.GQLName}}": - if e.complexity.{{$object.GQLType|toCamel}}.{{$field.GQLName|toCamel}} == nil { + case "{{$object.Name}}.{{$field.GoFieldName}}": + if e.complexity.{{$object.Name|go}}.{{$field.GoFieldName}} == nil { break } {{ if $field.Args }} - args, err := {{ $field.ArgsFunc }}(rawArgs) + args, err := ec.{{ $field.ArgsFunc }}(context.TODO(),rawArgs) if err != nil { return 0, false } {{ end }} - return e.complexity.{{$object.GQLType|toCamel}}.{{$field.GQLName|toCamel}}(childComplexity{{if $field.Args}}, {{$field.ComplexityArgs}} {{end}}), true + return e.complexity.{{$object.Name|go}}.{{$field.GoFieldName}}(childComplexity{{if $field.Args}}, {{$field.ComplexityArgs}} {{end}}), true {{ end }} {{ end }} {{ end }} @@ -131,7 +110,7 @@ func (e *executableSchema) Query(ctx context.Context, op *ast.OperationDefinitio ec := executionContext{graphql.GetRequestContext(ctx), e} buf := ec.RequestMiddleware(ctx, func(ctx context.Context) []byte { - data := ec._{{.QueryRoot.GQLType}}(ctx, op.SelectionSet) + data := ec._{{.QueryRoot.Name}}(ctx, op.SelectionSet) var buf bytes.Buffer data.MarshalGQL(&buf) return buf.Bytes() @@ -140,7 +119,8 @@ func (e *executableSchema) Query(ctx context.Context, op *ast.OperationDefinitio return &graphql.Response{ Data: buf, Errors: ec.Errors, - Extensions: ec.Extensions, } + Extensions: ec.Extensions, + } {{- else }} return graphql.ErrorResponse(ctx, "queries are not supported") {{- end }} @@ -151,7 +131,7 @@ func (e *executableSchema) Mutation(ctx context.Context, op *ast.OperationDefini ec := executionContext{graphql.GetRequestContext(ctx), e} buf := ec.RequestMiddleware(ctx, func(ctx context.Context) []byte { - data := ec._{{.MutationRoot.GQLType}}(ctx, op.SelectionSet) + data := ec._{{.MutationRoot.Name}}(ctx, op.SelectionSet) var buf bytes.Buffer data.MarshalGQL(&buf) return buf.Bytes() @@ -171,7 +151,7 @@ func (e *executableSchema) Subscription(ctx context.Context, op *ast.OperationDe {{- if .SubscriptionRoot }} ec := executionContext{graphql.GetRequestContext(ctx), e} - next := ec._{{.SubscriptionRoot.GQLType}}(ctx, op.SelectionSet) + next := ec._{{.SubscriptionRoot.Name}}(ctx, op.SelectionSet) if ec.Errors != nil { return graphql.OneShot(&graphql.Response{Data: []byte("null"), Errors: ec.Errors}) } @@ -209,22 +189,6 @@ type executionContext struct { *executableSchema } -{{- range $object := .Objects }} - {{ template "object.gotpl" $object }} - - {{- range $field := $object.Fields }} - {{ template "field.gotpl" $field }} - {{ end }} -{{- end}} - -{{- range $interface := .Interfaces }} - {{ template "interface.gotpl" $interface }} -{{- end }} - -{{- range $input := .Inputs }} - {{ template "input.gotpl" $input }} -{{- end }} - func (ec *executionContext) FieldMiddleware(ctx context.Context, obj interface{}, next graphql.Resolver) (ret interface{}) { defer func() { if r := recover(); r != nil { @@ -241,7 +205,7 @@ func (ec *executionContext) FieldMiddleware(ctx context.Context, obj interface{} if ec.directives.{{$directive.Name|ucFirst}} != nil { {{- if $directive.Args }} rawArgs := d.ArgumentMap(ec.Variables) - args, err := {{ $directive.ArgsFunc }}(rawArgs) + args, err := ec.{{ $directive.ArgsFunc }}(ctx,rawArgs) if err != nil { ec.Error(ctx, err) return nil @@ -279,7 +243,7 @@ func (ec *executionContext) introspectType(name string) (*introspection.Type, er } var parsedSchema = gqlparser.MustLoadSchema( - {{- range $filename, $schema := .SchemaRaw }} + {{- range $filename, $schema := .SchemaStr }} &ast.Source{Name: {{$filename|quote}}, Input: {{$schema|rawQuote}}}, {{- end }} ) diff --git a/vendor/github.com/99designs/gqlgen/codegen/input.gotpl b/vendor/github.com/99designs/gqlgen/codegen/input.gotpl new file mode 100644 index 00000000..c8ac7ad3 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/input.gotpl @@ -0,0 +1,56 @@ +{{- range $input := .Inputs }} + {{- if not .HasUnmarshal }} + func (ec *executionContext) unmarshalInput{{ .Name }}(ctx context.Context, v interface{}) ({{.Type | ref}}, error) { + var it {{.Type | ref}} + var asMap = v.(map[string]interface{}) + {{ range $field := .Fields}} + {{- if $field.Default}} + if _, present := asMap[{{$field.Name|quote}}] ; !present { + asMap[{{$field.Name|quote}}] = {{ $field.Default | dump }} + } + {{- end}} + {{- end }} + + for k, v := range asMap { + switch k { + {{- range $field := .Fields }} + case {{$field.Name|quote}}: + var err error + {{- if $field.Directives }} + getField0 := func(ctx context.Context) (interface{}, error) { return ec.{{ $field.TypeReference.UnmarshalFunc }}(ctx, v) } + + {{- range $i, $directive := $field.Directives }} + getField{{add $i 1}} := func(ctx context.Context) (res interface{}, err error) { + {{- range $dArg := $directive.Args }} + {{- if and $dArg.TypeReference.IsPtr ( notNil "Value" $dArg ) }} + {{ $dArg.VarName }} := {{ $dArg.Value | dump }} + {{- end }} + {{- end }} + n := getField{{$i}} + return ec.directives.{{$directive.Name|ucFirst}}({{$directive.ResolveArgs "it" "n" }}) + } + {{- end }} + + tmp, err := getField{{$field.Directives|len}}(ctx) + if err != nil { + return it, err + } + if data, ok := tmp.({{ $field.TypeReference.GO | ref }}) ; ok { + it.{{$field.GoFieldName}} = data + } else { + return it, fmt.Errorf(`unexpected type %T from directive, should be {{ $field.TypeReference.GO }}`, tmp) + } + {{- else }} + it.{{$field.GoFieldName}}, err = ec.{{ $field.TypeReference.UnmarshalFunc }}(ctx, v) + if err != nil { + return it, err + } + {{- end }} + {{- end }} + } + } + + return it, nil + } + {{- end }} +{{ end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/input_build.go b/vendor/github.com/99designs/gqlgen/codegen/input_build.go deleted file mode 100644 index 70fa564d..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/input_build.go +++ /dev/null @@ -1,96 +0,0 @@ -package codegen - -import ( - "go/types" - "sort" - - "github.com/pkg/errors" - "github.com/vektah/gqlparser/ast" - "golang.org/x/tools/go/loader" -) - -func (cfg *Config) buildInputs(namedTypes NamedTypes, prog *loader.Program) (Objects, error) { - var inputs Objects - - for _, typ := range cfg.schema.Types { - switch typ.Kind { - case ast.InputObject: - input, err := cfg.buildInput(namedTypes, typ) - if err != nil { - return nil, err - } - - def, err := findGoType(prog, input.Package, input.GoType) - if err != nil { - return nil, errors.Wrap(err, "cannot find type") - } - if def != nil { - input.Marshaler = buildInputMarshaler(typ, def) - bindErrs := bindObject(def.Type(), input, cfg.StructTag) - if len(bindErrs) > 0 { - return nil, bindErrs - } - } - - inputs = append(inputs, input) - } - } - - sort.Slice(inputs, func(i, j int) bool { - return inputs[i].GQLType < inputs[j].GQLType - }) - - return inputs, nil -} - -func (cfg *Config) buildInput(types NamedTypes, typ *ast.Definition) (*Object, error) { - obj := &Object{NamedType: types[typ.Name]} - typeEntry, entryExists := cfg.Models[typ.Name] - - for _, field := range typ.Fields { - newField := Field{ - GQLName: field.Name, - Type: types.getType(field.Type), - Object: obj, - } - - if entryExists { - if typeField, ok := typeEntry.Fields[field.Name]; ok { - newField.GoFieldName = typeField.FieldName - } - } - - if field.DefaultValue != nil { - var err error - newField.Default, err = field.DefaultValue.Value(nil) - if err != nil { - return nil, errors.Errorf("default value for %s.%s is not valid: %s", typ.Name, field.Name, err.Error()) - } - } - - if !newField.Type.IsInput && !newField.Type.IsScalar { - return nil, errors.Errorf("%s cannot be used as a field of %s. only input and scalar types are allowed", newField.GQLType, obj.GQLType) - } - - obj.Fields = append(obj.Fields, newField) - - } - return obj, nil -} - -// if user has implemented an UnmarshalGQL method on the input type manually, use it -// otherwise we will generate one. -func buildInputMarshaler(typ *ast.Definition, def types.Object) *Ref { - switch def := def.(type) { - case *types.TypeName: - namedType := def.Type().(*types.Named) - for i := 0; i < namedType.NumMethods(); i++ { - method := namedType.Method(i) - if method.Name() == "UnmarshalGQL" { - return nil - } - } - } - - return &Ref{GoType: typ.Name} -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/interface.go b/vendor/github.com/99designs/gqlgen/codegen/interface.go index 2de0c88a..f59e8ed0 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/interface.go +++ b/vendor/github.com/99designs/gqlgen/codegen/interface.go @@ -1,13 +1,63 @@ package codegen -type Interface struct { - *NamedType +import ( + "go/types" + + "github.com/vektah/gqlparser/ast" +) +type Interface struct { + *ast.Definition + Type types.Type Implementors []InterfaceImplementor + InTypemap bool } type InterfaceImplementor struct { - ValueReceiver bool + *ast.Definition + + Interface *Interface + Type types.Type +} + +func (b *builder) buildInterface(typ *ast.Definition) *Interface { + obj, err := b.Binder.DefaultUserObject(typ.Name) + if err != nil { + panic(err) + } + + i := &Interface{ + Definition: typ, + Type: obj, + InTypemap: b.Config.Models.UserDefined(typ.Name), + } + + for _, implementor := range b.Schema.GetPossibleTypes(typ) { + obj, err := b.Binder.DefaultUserObject(implementor.Name) + if err != nil { + panic(err) + } + + i.Implementors = append(i.Implementors, InterfaceImplementor{ + Definition: implementor, + Type: obj, + Interface: i, + }) + } + + return i +} + +func (i *InterfaceImplementor) ValueReceiver() bool { + interfaceType, err := findGoInterface(i.Interface.Type) + if interfaceType == nil || err != nil { + return true + } + + implementorType, err := findGoNamedType(i.Type) + if implementorType == nil || err != nil { + return true + } - *NamedType + return types.Implements(implementorType, interfaceType) } diff --git a/vendor/github.com/99designs/gqlgen/codegen/interface.gotpl b/vendor/github.com/99designs/gqlgen/codegen/interface.gotpl new file mode 100644 index 00000000..81a58076 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/interface.gotpl @@ -0,0 +1,20 @@ +{{- range $interface := .Interfaces }} + +func (ec *executionContext) _{{$interface.Name}}(ctx context.Context, sel ast.SelectionSet, obj *{{$interface.Type | ref}}) graphql.Marshaler { + switch obj := (*obj).(type) { + case nil: + return graphql.Null + {{- range $implementor := $interface.Implementors }} + {{- if $implementor.ValueReceiver }} + case {{$implementor.Type | ref}}: + return ec._{{$implementor.Name}}(ctx, sel, &obj) + {{- end}} + case *{{$implementor.Type | ref}}: + return ec._{{$implementor.Name}}(ctx, sel, obj) + {{- end }} + default: + panic(fmt.Errorf("unexpected type %T", obj)) + } +} + +{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/interface_build.go b/vendor/github.com/99designs/gqlgen/codegen/interface_build.go deleted file mode 100644 index 92052ba6..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/interface_build.go +++ /dev/null @@ -1,53 +0,0 @@ -package codegen - -import ( - "go/types" - "sort" - - "github.com/vektah/gqlparser/ast" - "golang.org/x/tools/go/loader" -) - -func (cfg *Config) buildInterfaces(types NamedTypes, prog *loader.Program) []*Interface { - var interfaces []*Interface - for _, typ := range cfg.schema.Types { - if typ.Kind == ast.Union || typ.Kind == ast.Interface { - interfaces = append(interfaces, cfg.buildInterface(types, typ, prog)) - } - } - - sort.Slice(interfaces, func(i, j int) bool { - return interfaces[i].GQLType < interfaces[j].GQLType - }) - - return interfaces -} - -func (cfg *Config) buildInterface(types NamedTypes, typ *ast.Definition, prog *loader.Program) *Interface { - i := &Interface{NamedType: types[typ.Name]} - - for _, implementor := range cfg.schema.GetPossibleTypes(typ) { - t := types[implementor.Name] - - i.Implementors = append(i.Implementors, InterfaceImplementor{ - NamedType: t, - ValueReceiver: cfg.isValueReceiver(types[typ.Name], t, prog), - }) - } - - return i -} - -func (cfg *Config) isValueReceiver(intf *NamedType, implementor *NamedType, prog *loader.Program) bool { - interfaceType, err := findGoInterface(prog, intf.Package, intf.GoType) - if interfaceType == nil || err != nil { - return true - } - - implementorType, err := findGoNamedType(prog, implementor.Package, implementor.GoType) - if implementorType == nil || err != nil { - return true - } - - return types.Implements(implementorType, interfaceType) -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/model.go b/vendor/github.com/99designs/gqlgen/codegen/model.go deleted file mode 100644 index bcdc8703..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/model.go +++ /dev/null @@ -1,17 +0,0 @@ -package codegen - -type Model struct { - *NamedType - Description string - Fields []ModelField - Implements []*NamedType -} - -type ModelField struct { - *Type - GQLName string - GoFieldName string - GoFKName string - GoFKType string - Description string -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/models_build.go b/vendor/github.com/99designs/gqlgen/codegen/models_build.go deleted file mode 100644 index 56d2ff1f..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/models_build.go +++ /dev/null @@ -1,91 +0,0 @@ -package codegen - -import ( - "sort" - - "github.com/vektah/gqlparser/ast" - "golang.org/x/tools/go/loader" -) - -func (cfg *Config) buildModels(types NamedTypes, prog *loader.Program) ([]Model, error) { - var models []Model - - for _, typ := range cfg.schema.Types { - var model Model - switch typ.Kind { - case ast.Object: - obj, err := cfg.buildObject(types, typ) - if err != nil { - return nil, err - } - if obj.Root || obj.IsUserDefined { - continue - } - model = cfg.obj2Model(obj) - case ast.InputObject: - obj, err := cfg.buildInput(types, typ) - if err != nil { - return nil, err - } - if obj.IsUserDefined { - continue - } - model = cfg.obj2Model(obj) - case ast.Interface, ast.Union: - intf := cfg.buildInterface(types, typ, prog) - if intf.IsUserDefined { - continue - } - model = int2Model(intf) - default: - continue - } - model.Description = typ.Description // It's this or change both obj2Model and buildObject - - models = append(models, model) - } - - sort.Slice(models, func(i, j int) bool { - return models[i].GQLType < models[j].GQLType - }) - - return models, nil -} - -func (cfg *Config) obj2Model(obj *Object) Model { - model := Model{ - NamedType: obj.NamedType, - Implements: obj.Implements, - Fields: []ModelField{}, - } - - model.GoType = ucFirst(obj.GQLType) - model.Marshaler = &Ref{GoType: obj.GoType} - - for i := range obj.Fields { - field := &obj.Fields[i] - mf := ModelField{Type: field.Type, GQLName: field.GQLName} - - if field.GoFieldName != "" { - mf.GoFieldName = field.GoFieldName - } else { - mf.GoFieldName = field.GoNameExported() - } - - model.Fields = append(model.Fields, mf) - } - - return model -} - -func int2Model(obj *Interface) Model { - model := Model{ - NamedType: obj.NamedType, - Fields: []ModelField{}, - } - - model.GoType = ucFirst(obj.GQLType) - model.Marshaler = &Ref{GoType: obj.GoType} - - return model -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/object.go b/vendor/github.com/99designs/gqlgen/codegen/object.go index 656af297..539c3164 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/object.go +++ b/vendor/github.com/99designs/gqlgen/codegen/object.go @@ -1,13 +1,13 @@ package codegen import ( - "bytes" - "fmt" + "go/types" "strconv" "strings" - "text/template" "unicode" + "github.com/99designs/gqlgen/codegen/config" + "github.com/pkg/errors" "github.com/vektah/gqlparser/ast" ) @@ -17,337 +17,150 @@ const ( GoFieldUndefined GoFieldType = iota GoFieldMethod GoFieldVariable + GoFieldMap ) type Object struct { - *NamedType + *ast.Definition - Fields []Field - Satisfies []string - Implements []*NamedType - ResolverInterface *Ref + Type types.Type + ResolverInterface types.Type Root bool + Fields []*Field + Implements []*ast.Definition DisableConcurrency bool Stream bool + Directives []*Directive } -type Field struct { - *Type - Description string // Description of a field - GQLName string // The name of the field in graphql - GoFieldType GoFieldType // The field type in go, if any - GoReceiverName string // The name of method & var receiver in go, if any - GoFieldName string // The name of the method or var in go, if any - Args []FieldArgument // A list of arguments to be passed to this field - ForceResolver bool // Should be emit Resolver method - MethodHasContext bool // If this is bound to a go method, does the method also take a context - NoErr bool // If this is bound to a go method, does that method have an error as the second argument - Object *Object // A link back to the parent object - Default interface{} // The default value -} - -type FieldArgument struct { - *Type - - GQLName string // The name of the argument in graphql - GoVarName string // The name of the var in go - Object *Object // A link back to the parent object - Default interface{} // The default value -} - -type Objects []*Object - -func (o *Object) Implementors() string { - satisfiedBy := strconv.Quote(o.GQLType) - for _, s := range o.Satisfies { - satisfiedBy += ", " + strconv.Quote(s) - } - return "[]string{" + satisfiedBy + "}" -} - -func (o *Object) HasResolvers() bool { - for _, f := range o.Fields { - if f.IsResolver() { - return true +func (b *builder) buildObject(typ *ast.Definition) (*Object, error) { + dirs, err := b.getDirectives(typ.Directives) + if err != nil { + return nil, errors.Wrap(err, typ.Name) + } + + obj := &Object{ + Definition: typ, + Root: b.Schema.Query == typ || b.Schema.Mutation == typ || b.Schema.Subscription == typ, + DisableConcurrency: typ == b.Schema.Mutation, + Stream: typ == b.Schema.Subscription, + Directives: dirs, + ResolverInterface: types.NewNamed( + types.NewTypeName(0, b.Config.Exec.Pkg(), typ.Name+"Resolver", nil), + nil, + nil, + ), + } + + if !obj.Root { + goObject, err := b.Binder.DefaultUserObject(typ.Name) + if err != nil { + return nil, err } + obj.Type = goObject } - return false -} -func (o *Object) IsConcurrent() bool { - for _, f := range o.Fields { - if f.IsConcurrent() { - return true - } + for _, intf := range b.Schema.GetImplements(typ) { + obj.Implements = append(obj.Implements, b.Schema.Types[intf.Name]) } - return false -} - -func (o *Object) IsReserved() bool { - return strings.HasPrefix(o.GQLType, "__") -} -func (f *Field) IsResolver() bool { - return f.GoFieldName == "" -} - -func (f *Field) IsReserved() bool { - return strings.HasPrefix(f.GQLName, "__") -} - -func (f *Field) IsMethod() bool { - return f.GoFieldType == GoFieldMethod -} + for _, field := range typ.Fields { + if strings.HasPrefix(field.Name, "__") { + continue + } -func (f *Field) IsVariable() bool { - return f.GoFieldType == GoFieldVariable -} + var f *Field + f, err = b.buildField(obj, field) + if err != nil { + return nil, err + } -func (f *Field) IsConcurrent() bool { - if f.Object.DisableConcurrency { - return false + obj.Fields = append(obj.Fields, f) } - return f.MethodHasContext || f.IsResolver() -} -func (f *Field) GoNameExported() string { - return lintName(ucFirst(f.GQLName)) + return obj, nil } -func (f *Field) GoNameUnexported() string { - return lintName(f.GQLName) -} - -func (f *Field) ShortInvocation() string { - if !f.IsResolver() { - return "" +func (o *Object) Reference() types.Type { + switch o.Type.(type) { + case *types.Pointer, *types.Slice, *types.Map: + return o.Type } - return fmt.Sprintf("%s().%s(%s)", f.Object.GQLType, f.GoNameExported(), f.CallArgs()) + return types.NewPointer(o.Type) } -func (f *Field) ArgsFunc() string { - if len(f.Args) == 0 { - return "" - } - - return "field_" + f.Object.GQLType + "_" + f.GQLName + "_args" -} +type Objects []*Object -func (f *Field) ResolverType() string { - if !f.IsResolver() { - return "" +func (o *Object) Implementors() string { + satisfiedBy := strconv.Quote(o.Name) + for _, s := range o.Implements { + satisfiedBy += ", " + strconv.Quote(s.Name) } - - return fmt.Sprintf("%s().%s(%s)", f.Object.GQLType, f.GoNameExported(), f.CallArgs()) + return "[]string{" + satisfiedBy + "}" } -func (f *Field) ShortResolverDeclaration() string { - if !f.IsResolver() { - return "" - } - res := fmt.Sprintf("%s(ctx context.Context", f.GoNameExported()) - - if !f.Object.Root { - res += fmt.Sprintf(", obj *%s", f.Object.FullName()) - } - for _, arg := range f.Args { - res += fmt.Sprintf(", %s %s", arg.GoVarName, arg.Signature()) - } - - result := f.Signature() - if f.Object.Stream { - result = "<-chan " + result +func (o *Object) HasResolvers() bool { + for _, f := range o.Fields { + if f.IsResolver { + return true + } } - - res += fmt.Sprintf(") (%s, error)", result) - return res + return false } -func (f *Field) ResolverDeclaration() string { - if !f.IsResolver() { - return "" - } - res := fmt.Sprintf("%s_%s(ctx context.Context", f.Object.GQLType, f.GoNameUnexported()) - - if !f.Object.Root { - res += fmt.Sprintf(", obj *%s", f.Object.FullName()) +func (o *Object) HasUnmarshal() bool { + if o.Type == config.MapType { + return true } - for _, arg := range f.Args { - res += fmt.Sprintf(", %s %s", arg.GoVarName, arg.Signature()) - } - - result := f.Signature() - if f.Object.Stream { - result = "<-chan " + result + for i := 0; i < o.Type.(*types.Named).NumMethods(); i++ { + switch o.Type.(*types.Named).Method(i).Name() { + case "UnmarshalGQL": + return true + } } - - res += fmt.Sprintf(") (%s, error)", result) - return res + return false } -func (f *Field) ComplexitySignature() string { - res := fmt.Sprintf("func(childComplexity int") - for _, arg := range f.Args { - res += fmt.Sprintf(", %s %s", arg.GoVarName, arg.Signature()) +func (o *Object) HasDirectives() bool { + if len(o.Directives) > 0 { + return true } - res += ") int" - return res -} - -func (f *Field) ComplexityArgs() string { - var args []string - for _, arg := range f.Args { - args = append(args, "args["+strconv.Quote(arg.GQLName)+"].("+arg.Signature()+")") + for _, f := range o.Fields { + if f.HasDirectives() { + return true + } } - return strings.Join(args, ", ") + return false } -func (f *Field) CallArgs() string { - var args []string - - if f.IsResolver() { - args = append(args, "rctx") - - if !f.Object.Root { - args = append(args, "obj") - } - } else { - if f.MethodHasContext { - args = append(args, "ctx") +func (o *Object) IsConcurrent() bool { + for _, f := range o.Fields { + if f.IsConcurrent() { + return true } } - - for _, arg := range f.Args { - args = append(args, "args["+strconv.Quote(arg.GQLName)+"].("+arg.Signature()+")") - } - - return strings.Join(args, ", ") -} - -// should be in the template, but its recursive and has a bunch of args -func (f *Field) WriteJson() string { - return f.doWriteJson("res", f.Type.Modifiers, f.ASTType, false, 1) + return false } -func (f *Field) doWriteJson(val string, remainingMods []string, astType *ast.Type, isPtr bool, depth int) string { - switch { - case len(remainingMods) > 0 && remainingMods[0] == modPtr: - return tpl(` - if {{.val}} == nil { - {{- if .nonNull }} - if !ec.HasError(rctx) { - ec.Errorf(ctx, "must not be null") - } - {{- end }} - return graphql.Null - } - {{.next }}`, map[string]interface{}{ - "val": val, - "nonNull": astType.NonNull, - "next": f.doWriteJson(val, remainingMods[1:], astType, true, depth+1), - }) - - case len(remainingMods) > 0 && remainingMods[0] == modList: - if isPtr { - val = "*" + val - } - var arr = "arr" + strconv.Itoa(depth) - var index = "idx" + strconv.Itoa(depth) - var usePtr bool - if len(remainingMods) == 1 && !isPtr { - usePtr = true - } - - return tpl(` - {{.arr}} := make(graphql.Array, len({{.val}})) - {{ if and .top (not .isScalar) }} var wg sync.WaitGroup {{ end }} - {{ if not .isScalar }} - isLen1 := len({{.val}}) == 1 - if !isLen1 { - wg.Add(len({{.val}})) - } - {{ end }} - for {{.index}} := range {{.val}} { - {{- if not .isScalar }} - {{.index}} := {{.index}} - rctx := &graphql.ResolverContext{ - Index: &{{.index}}, - Result: {{ if .usePtr }}&{{end}}{{.val}}[{{.index}}], - } - ctx := graphql.WithResolverContext(ctx, rctx) - f := func({{.index}} int) { - if !isLen1 { - defer wg.Done() - } - {{.arr}}[{{.index}}] = func() graphql.Marshaler { - {{ .next }} - }() - } - if isLen1 { - f({{.index}}) - } else { - go f({{.index}}) - } - {{ else }} - {{.arr}}[{{.index}}] = func() graphql.Marshaler { - {{ .next }} - }() - {{- end}} - } - {{ if and .top (not .isScalar) }} wg.Wait() {{ end }} - return {{.arr}}`, map[string]interface{}{ - "val": val, - "arr": arr, - "index": index, - "top": depth == 1, - "arrayLen": len(val), - "isScalar": f.IsScalar, - "usePtr": usePtr, - "next": f.doWriteJson(val+"["+index+"]", remainingMods[1:], astType.Elem, false, depth+1), - }) - - case f.IsScalar: - if isPtr { - val = "*" + val - } - return f.Marshal(val) - - default: - if !isPtr { - val = "&" + val - } - return tpl(` - return ec._{{.type}}(ctx, field.Selections, {{.val}})`, map[string]interface{}{ - "type": f.GQLType, - "val": val, - }) - } +func (o *Object) IsReserved() bool { + return strings.HasPrefix(o.Definition.Name, "__") } -func (f *FieldArgument) Stream() bool { - return f.Object != nil && f.Object.Stream +func (o *Object) Description() string { + return o.Definition.Description } func (os Objects) ByName(name string) *Object { for i, o := range os { - if strings.EqualFold(o.GQLType, name) { + if strings.EqualFold(o.Definition.Name, name) { return os[i] } } return nil } -func tpl(tpl string, vars map[string]interface{}) string { - b := &bytes.Buffer{} - err := template.Must(template.New("inline").Parse(tpl)).Execute(b, vars) - if err != nil { - panic(err) - } - return b.String() -} - func ucFirst(s string) string { if s == "" { return "" @@ -357,117 +170,3 @@ func ucFirst(s string) string { r[0] = unicode.ToUpper(r[0]) return string(r) } - -// copy from https://github.com/golang/lint/blob/06c8688daad7faa9da5a0c2f163a3d14aac986ca/lint.go#L679 - -// lintName returns a different name if it should be different. -func lintName(name string) (should string) { - // Fast path for simple cases: "_" and all lowercase. - if name == "_" { - return name - } - allLower := true - for _, r := range name { - if !unicode.IsLower(r) { - allLower = false - break - } - } - if allLower { - return name - } - - // Split camelCase at any lower->upper transition, and split on underscores. - // Check each word for common initialisms. - runes := []rune(name) - w, i := 0, 0 // index of start of word, scan - for i+1 <= len(runes) { - eow := false // whether we hit the end of a word - if i+1 == len(runes) { - eow = true - } else if runes[i+1] == '_' { - // underscore; shift the remainder forward over any run of underscores - eow = true - n := 1 - for i+n+1 < len(runes) && runes[i+n+1] == '_' { - n++ - } - - // Leave at most one underscore if the underscore is between two digits - if i+n+1 < len(runes) && unicode.IsDigit(runes[i]) && unicode.IsDigit(runes[i+n+1]) { - n-- - } - - copy(runes[i+1:], runes[i+n+1:]) - runes = runes[:len(runes)-n] - } else if unicode.IsLower(runes[i]) && !unicode.IsLower(runes[i+1]) { - // lower->non-lower - eow = true - } - i++ - if !eow { - continue - } - - // [w,i) is a word. - word := string(runes[w:i]) - if u := strings.ToUpper(word); commonInitialisms[u] { - // Keep consistent case, which is lowercase only at the start. - if w == 0 && unicode.IsLower(runes[w]) { - u = strings.ToLower(u) - } - // All the common initialisms are ASCII, - // so we can replace the bytes exactly. - copy(runes[w:], []rune(u)) - } else if w > 0 && strings.ToLower(word) == word { - // already all lowercase, and not the first word, so uppercase the first character. - runes[w] = unicode.ToUpper(runes[w]) - } - w = i - } - return string(runes) -} - -// commonInitialisms is a set of common initialisms. -// Only add entries that are highly unlikely to be non-initialisms. -// For instance, "ID" is fine (Freudian code is rare), but "AND" is not. -var commonInitialisms = map[string]bool{ - "ACL": true, - "API": true, - "ASCII": true, - "CPU": true, - "CSS": true, - "DNS": true, - "EOF": true, - "GUID": true, - "HTML": true, - "HTTP": true, - "HTTPS": true, - "ID": true, - "IP": true, - "JSON": true, - "LHS": true, - "QPS": true, - "RAM": true, - "RHS": true, - "RPC": true, - "SLA": true, - "SMTP": true, - "SQL": true, - "SSH": true, - "TCP": true, - "TLS": true, - "TTL": true, - "UDP": true, - "UI": true, - "UID": true, - "UUID": true, - "URI": true, - "URL": true, - "UTF8": true, - "VM": true, - "XML": true, - "XMPP": true, - "XSRF": true, - "XSS": true, -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/object.gotpl b/vendor/github.com/99designs/gqlgen/codegen/object.gotpl new file mode 100644 index 00000000..19da1b19 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/object.gotpl @@ -0,0 +1,77 @@ +{{- range $object := .Objects }} + +var {{ $object.Name|lcFirst}}Implementors = {{$object.Implementors}} + +{{- if .Stream }} +func (ec *executionContext) _{{$object.Name}}(ctx context.Context, sel ast.SelectionSet) func() graphql.Marshaler { + fields := graphql.CollectFields(ctx, sel, {{$object.Name|lcFirst}}Implementors) + ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ + Object: {{$object.Name|quote}}, + }) + if len(fields) != 1 { + ec.Errorf(ctx, "must subscribe to exactly one stream") + return nil + } + + switch fields[0].Name { + {{- range $field := $object.Fields }} + case "{{$field.Name}}": + return ec._{{$object.Name}}_{{$field.Name}}(ctx, fields[0]) + {{- end }} + default: + panic("unknown field " + strconv.Quote(fields[0].Name)) + } +} +{{- else }} +func (ec *executionContext) _{{$object.Name}}(ctx context.Context, sel ast.SelectionSet{{ if not $object.Root }},obj {{$object.Reference | ref }}{{ end }}) graphql.Marshaler { + fields := graphql.CollectFields(ctx, sel, {{$object.Name|lcFirst}}Implementors) + {{if $object.Root}} + ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ + Object: {{$object.Name|quote}}, + }) + {{end}} + + out := graphql.NewFieldSet(fields) + invalid := false + for i, field := range fields { + switch field.Name { + case "__typename": + out.Values[i] = graphql.MarshalString({{$object.Name|quote}}) + {{- range $field := $object.Fields }} + case "{{$field.Name}}": + {{- if $field.IsConcurrent }} + field := field + out.Concurrently(i, func() (res graphql.Marshaler) { + defer func() { + if r := recover(); r != nil { + ec.Error(ctx, ec.Recover(ctx, r)) + } + }() + res = ec._{{$object.Name}}_{{$field.Name}}(ctx, field{{if not $object.Root}}, obj{{end}}) + {{- if $field.TypeReference.GQL.NonNull }} + if res == graphql.Null { + invalid = true + } + {{- end }} + return res + }) + {{- else }} + out.Values[i] = ec._{{$object.Name}}_{{$field.Name}}(ctx, field{{if not $object.Root}}, obj{{end}}) + {{- if $field.TypeReference.GQL.NonNull }} + if out.Values[i] == graphql.Null { + invalid = true + } + {{- end }} + {{- end }} + {{- end }} + default: + panic("unknown field " + strconv.Quote(field.Name)) + } + } + out.Dispatch() + if invalid { return graphql.Null } + return out +} +{{- end }} + +{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/object_build.go b/vendor/github.com/99designs/gqlgen/codegen/object_build.go deleted file mode 100644 index 279d1eb6..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/object_build.go +++ /dev/null @@ -1,181 +0,0 @@ -package codegen - -import ( - "log" - "sort" - - "github.com/pkg/errors" - "github.com/vektah/gqlparser/ast" - "golang.org/x/tools/go/loader" -) - -func (cfg *Config) buildObjects(types NamedTypes, prog *loader.Program) (Objects, error) { - var objects Objects - - for _, typ := range cfg.schema.Types { - if typ.Kind != ast.Object { - continue - } - - obj, err := cfg.buildObject(types, typ) - if err != nil { - return nil, err - } - - def, err := findGoType(prog, obj.Package, obj.GoType) - if err != nil { - return nil, err - } - if def != nil { - for _, bindErr := range bindObject(def.Type(), obj, cfg.StructTag) { - log.Println(bindErr.Error()) - log.Println(" Adding resolver method") - } - } - - objects = append(objects, obj) - } - - sort.Slice(objects, func(i, j int) bool { - return objects[i].GQLType < objects[j].GQLType - }) - - return objects, nil -} - -var keywords = []string{ - "break", - "default", - "func", - "interface", - "select", - "case", - "defer", - "go", - "map", - "struct", - "chan", - "else", - "goto", - "package", - "switch", - "const", - "fallthrough", - "if", - "range", - "type", - "continue", - "for", - "import", - "return", - "var", -} - -// sanitizeArgName prevents collisions with go keywords for arguments to resolver functions -func sanitizeArgName(name string) string { - for _, k := range keywords { - if name == k { - return name + "Arg" - } - } - return name -} - -func (cfg *Config) buildObject(types NamedTypes, typ *ast.Definition) (*Object, error) { - obj := &Object{NamedType: types[typ.Name]} - typeEntry, entryExists := cfg.Models[typ.Name] - - obj.ResolverInterface = &Ref{GoType: obj.GQLType + "Resolver"} - - if typ == cfg.schema.Query { - obj.Root = true - } - - if typ == cfg.schema.Mutation { - obj.Root = true - obj.DisableConcurrency = true - } - - if typ == cfg.schema.Subscription { - obj.Root = true - obj.Stream = true - } - - obj.Satisfies = append(obj.Satisfies, typ.Interfaces...) - - for _, intf := range cfg.schema.GetImplements(typ) { - obj.Implements = append(obj.Implements, types[intf.Name]) - } - - for _, field := range typ.Fields { - if typ == cfg.schema.Query && field.Name == "__type" { - obj.Fields = append(obj.Fields, Field{ - Type: &Type{types["__Schema"], []string{modPtr}, ast.NamedType("__Schema", nil), nil}, - GQLName: "__schema", - GoFieldType: GoFieldMethod, - GoReceiverName: "ec", - GoFieldName: "introspectSchema", - Object: obj, - Description: field.Description, - }) - continue - } - if typ == cfg.schema.Query && field.Name == "__schema" { - obj.Fields = append(obj.Fields, Field{ - Type: &Type{types["__Type"], []string{modPtr}, ast.NamedType("__Schema", nil), nil}, - GQLName: "__type", - GoFieldType: GoFieldMethod, - GoReceiverName: "ec", - GoFieldName: "introspectType", - Args: []FieldArgument{ - {GQLName: "name", Type: &Type{types["String"], []string{}, ast.NamedType("String", nil), nil}, Object: &Object{}}, - }, - Object: obj, - }) - continue - } - - var forceResolver bool - var goName string - if entryExists { - if typeField, ok := typeEntry.Fields[field.Name]; ok { - goName = typeField.FieldName - forceResolver = typeField.Resolver - } - } - - var args []FieldArgument - for _, arg := range field.Arguments { - newArg := FieldArgument{ - GQLName: arg.Name, - Type: types.getType(arg.Type), - Object: obj, - GoVarName: sanitizeArgName(arg.Name), - } - - if !newArg.Type.IsInput && !newArg.Type.IsScalar { - return nil, errors.Errorf("%s cannot be used as argument of %s.%s. only input and scalar types are allowed", arg.Type, obj.GQLType, field.Name) - } - - if arg.DefaultValue != nil { - var err error - newArg.Default, err = arg.DefaultValue.Value(nil) - if err != nil { - return nil, errors.Errorf("default value for %s.%s is not valid: %s", typ.Name, field.Name, err.Error()) - } - } - args = append(args, newArg) - } - - obj.Fields = append(obj.Fields, Field{ - GQLName: field.Name, - Type: types.getType(field.Type), - Args: args, - Object: obj, - GoFieldName: goName, - ForceResolver: forceResolver, - }) - } - - return obj, nil -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/args.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/args.gotpl deleted file mode 100644 index 870a99ed..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/args.gotpl +++ /dev/null @@ -1,13 +0,0 @@ - args := map[string]interface{}{} - {{- range $i, $arg := . }} - var arg{{$i}} {{$arg.Signature }} - if tmp, ok := rawArgs[{{$arg.GQLName|quote}}]; ok { - var err error - {{$arg.Unmarshal (print "arg" $i) "tmp" }} - if err != nil { - return nil, err - } - } - args[{{$arg.GQLName|quote}}] = arg{{$i}} - {{- end }} - return args, nil diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/data.go b/vendor/github.com/99designs/gqlgen/codegen/templates/data.go deleted file mode 100644 index d3098aaa..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/data.go +++ /dev/null @@ -1,13 +0,0 @@ -package templates - -var data = map[string]string{ - "args.gotpl": "\targs := map[string]interface{}{}\n\t{{- range $i, $arg := . }}\n\t\tvar arg{{$i}} {{$arg.Signature }}\n\t\tif tmp, ok := rawArgs[{{$arg.GQLName|quote}}]; ok {\n\t\t\tvar err error\n\t\t\t{{$arg.Unmarshal (print \"arg\" $i) \"tmp\" }}\n\t\t\tif err != nil {\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t}\n\t\targs[{{$arg.GQLName|quote}}] = arg{{$i}}\n\t{{- end }}\n\treturn args, nil\n", - "field.gotpl": "{{ $field := . }}\n{{ $object := $field.Object }}\n\n{{- if $object.Stream }}\n\tfunc (ec *executionContext) _{{$object.GQLType}}_{{$field.GQLName}}(ctx context.Context, field graphql.CollectedField) func() graphql.Marshaler {\n\t\t{{- if $field.Args }}\n\t\t\trawArgs := field.ArgumentMap(ec.Variables)\n\t\t\targs, err := {{ $field.ArgsFunc }}(rawArgs)\n\t\t\tif err != nil {\n\t\t\t\tec.Error(ctx, err)\n\t\t\t\treturn nil\n\t\t\t}\n\t\t{{- end }}\n\t\tctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{\n\t\t\tField: field,\n\t\t})\n\t\t// FIXME: subscriptions are missing request middleware stack https://github.com/99designs/gqlgen/issues/259\n\t\t// and Tracer stack\n\t\trctx := ctx\n\t\tresults, err := ec.resolvers.{{ $field.ShortInvocation }}\n\t\tif err != nil {\n\t\t\tec.Error(ctx, err)\n\t\t\treturn nil\n\t\t}\n\t\treturn func() graphql.Marshaler {\n\t\t\tres, ok := <-results\n\t\t\tif !ok {\n\t\t\t\treturn nil\n\t\t\t}\n\t\t\tvar out graphql.OrderedMap\n\t\t\tout.Add(field.Alias, func() graphql.Marshaler { {{ $field.WriteJson }} }())\n\t\t\treturn &out\n\t\t}\n\t}\n{{ else }}\n\t// nolint: vetshadow\n\tfunc (ec *executionContext) _{{$object.GQLType}}_{{$field.GQLName}}(ctx context.Context, field graphql.CollectedField, {{if not $object.Root}}obj *{{$object.FullName}}{{end}}) graphql.Marshaler {\n\t\tctx = ec.Tracer.StartFieldExecution(ctx, field)\n\t\tdefer func () { ec.Tracer.EndFieldExecution(ctx) }()\n\t\t{{- if $field.Args }}\n\t\t\trawArgs := field.ArgumentMap(ec.Variables)\n\t\t\targs, err := {{ $field.ArgsFunc }}(rawArgs)\n\t\t\tif err != nil {\n\t\t\t\tec.Error(ctx, err)\n\t\t\t\treturn graphql.Null\n\t\t\t}\n\t\t{{- end }}\n\t\trctx := &graphql.ResolverContext{\n\t\t\tObject: {{$object.GQLType|quote}},\n\t\t\tArgs: {{if $field.Args }}args{{else}}nil{{end}},\n\t\t\tField: field,\n\t\t}\n\t\tctx = graphql.WithResolverContext(ctx, rctx)\n\t\tctx = ec.Tracer.StartFieldResolverExecution(ctx, rctx)\n\t\tresTmp := ec.FieldMiddleware(ctx, {{if $object.Root}}nil{{else}}obj{{end}}, func(rctx context.Context) (interface{}, error) {\n\t\t\tctx = rctx // use context from middleware stack in children\n\t\t\t{{- if $field.IsResolver }}\n\t\t\t\treturn ec.resolvers.{{ $field.ShortInvocation }}\n\t\t\t{{- else if $field.IsMethod }}\n\t\t\t\t{{- if $field.NoErr }}\n\t\t\t\t\treturn {{$field.GoReceiverName}}.{{$field.GoFieldName}}({{ $field.CallArgs }}), nil\n\t\t\t\t{{- else }}\n\t\t\t\t\treturn {{$field.GoReceiverName}}.{{$field.GoFieldName}}({{ $field.CallArgs }})\n\t\t\t\t{{- end }}\n\t\t\t{{- else if $field.IsVariable }}\n\t\t\t\treturn {{$field.GoReceiverName}}.{{$field.GoFieldName}}, nil\n\t\t\t{{- end }}\n\t\t})\n\t\tif resTmp == nil {\n\t\t\t{{- if $field.ASTType.NonNull }}\n\t\t\t\tif !ec.HasError(rctx) {\n\t\t\t\t\tec.Errorf(ctx, \"must not be null\")\n\t\t\t\t}\n\t\t\t{{- end }}\n\t\t\treturn graphql.Null\n\t\t}\n\t\tres := resTmp.({{$field.Signature}})\n\t\trctx.Result = res\n\t\tctx = ec.Tracer.StartFieldChildExecution(ctx)\n\t\t{{ $field.WriteJson }}\n\t}\n{{ end }}\n", - "generated.gotpl": "// Code generated by github.com/99designs/gqlgen, DO NOT EDIT.\n\npackage {{ .PackageName }}\n\nimport (\n\t%%%IMPORTS%%%\n\n\t{{ reserveImport \"context\" }}\n\t{{ reserveImport \"fmt\" }}\n\t{{ reserveImport \"io\" }}\n\t{{ reserveImport \"strconv\" }}\n\t{{ reserveImport \"time\" }}\n\t{{ reserveImport \"sync\" }}\n\t{{ reserveImport \"errors\" }}\n\t{{ reserveImport \"bytes\" }}\n\n\t{{ reserveImport \"github.com/vektah/gqlparser\" }}\n\t{{ reserveImport \"github.com/vektah/gqlparser/ast\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql/introspection\" }}\n)\n\n// NewExecutableSchema creates an ExecutableSchema from the ResolverRoot interface.\nfunc NewExecutableSchema(cfg Config) graphql.ExecutableSchema {\n\treturn &executableSchema{\n\t\tresolvers: cfg.Resolvers,\n\t\tdirectives: cfg.Directives,\n\t\tcomplexity: cfg.Complexity,\n\t}\n}\n\ntype Config struct {\n\tResolvers ResolverRoot\n\tDirectives DirectiveRoot\n\tComplexity ComplexityRoot\n}\n\ntype ResolverRoot interface {\n{{- range $object := .Objects -}}\n\t{{ if $object.HasResolvers -}}\n\t\t{{$object.GQLType}}() {{$object.GQLType}}Resolver\n\t{{ end }}\n{{- end }}\n}\n\ntype DirectiveRoot struct {\n{{ range $directive := .Directives }}\n\t{{ $directive.Declaration }}\n{{ end }}\n}\n\ntype ComplexityRoot struct {\n{{ range $object := .Objects }}\n\t{{ if not $object.IsReserved -}}\n\t\t{{ $object.GQLType|toCamel }} struct {\n\t\t{{ range $field := $object.Fields -}}\n\t\t\t{{ if not $field.IsReserved -}}\n\t\t\t\t{{ $field.GQLName|toCamel }} {{ $field.ComplexitySignature }}\n\t\t\t{{ end }}\n\t\t{{- end }}\n\t\t}\n\t{{- end }}\n{{ end }}\n}\n\n{{ range $object := .Objects -}}\n\t{{ if $object.HasResolvers }}\n\t\ttype {{$object.GQLType}}Resolver interface {\n\t\t{{ range $field := $object.Fields -}}\n\t\t\t{{ $field.ShortResolverDeclaration }}\n\t\t{{ end }}\n\t\t}\n\t{{- end }}\n{{- end }}\n\n{{ range $object := .Objects -}}\n\t{{ range $field := $object.Fields -}}\n\t\t{{ if $field.Args }}\n\t\t\tfunc {{ $field.ArgsFunc }}(rawArgs map[string]interface{}) (map[string]interface{}, error) {\n\t\t\t{{ template \"args.gotpl\" $field.Args }}\n\t\t\t}\n\t\t{{ end }}\n\t{{ end }}\n{{- end }}\n\n{{ range $directive := .Directives }}\n\t{{ if $directive.Args }}\n\t\tfunc {{ $directive.ArgsFunc }}(rawArgs map[string]interface{}) (map[string]interface{}, error) {\n\t\t{{ template \"args.gotpl\" $directive.Args }}\n\t\t}\n\t{{ end }}\n{{ end }}\n\ntype executableSchema struct {\n\tresolvers ResolverRoot\n\tdirectives DirectiveRoot\n\tcomplexity ComplexityRoot\n}\n\nfunc (e *executableSchema) Schema() *ast.Schema {\n\treturn parsedSchema\n}\n\nfunc (e *executableSchema) Complexity(typeName, field string, childComplexity int, rawArgs map[string]interface{}) (int, bool) {\n\tswitch typeName + \".\" + field {\n\t{{ range $object := .Objects }}\n\t\t{{ if not $object.IsReserved }}\n\t\t\t{{ range $field := $object.Fields }}\n\t\t\t\t{{ if not $field.IsReserved }}\n\t\t\t\t\tcase \"{{$object.GQLType}}.{{$field.GQLName}}\":\n\t\t\t\t\t\tif e.complexity.{{$object.GQLType|toCamel}}.{{$field.GQLName|toCamel}} == nil {\n\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t}\n\t\t\t\t\t\t{{ if $field.Args }}\n\t\t\t\t\t\t\targs, err := {{ $field.ArgsFunc }}(rawArgs)\n\t\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\t\treturn 0, false\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t{{ end }}\n\t\t\t\t\t\treturn e.complexity.{{$object.GQLType|toCamel}}.{{$field.GQLName|toCamel}}(childComplexity{{if $field.Args}}, {{$field.ComplexityArgs}} {{end}}), true\n\t\t\t\t{{ end }}\n\t\t\t{{ end }}\n\t\t{{ end }}\n\t{{ end }}\n\t}\n\treturn 0, false\n}\n\nfunc (e *executableSchema) Query(ctx context.Context, op *ast.OperationDefinition) *graphql.Response {\n\t{{- if .QueryRoot }}\n\t\tec := executionContext{graphql.GetRequestContext(ctx), e}\n\n\t\tbuf := ec.RequestMiddleware(ctx, func(ctx context.Context) []byte {\n\t\t\tdata := ec._{{.QueryRoot.GQLType}}(ctx, op.SelectionSet)\n\t\t\tvar buf bytes.Buffer\n\t\t\tdata.MarshalGQL(&buf)\n\t\t\treturn buf.Bytes()\n\t\t})\n\n\t\treturn &graphql.Response{\n\t\t\tData: buf,\n\t\t\tErrors: ec.Errors,\n\t\t\tExtensions: ec.Extensions,\t\t}\n\t{{- else }}\n\t\treturn graphql.ErrorResponse(ctx, \"queries are not supported\")\n\t{{- end }}\n}\n\nfunc (e *executableSchema) Mutation(ctx context.Context, op *ast.OperationDefinition) *graphql.Response {\n\t{{- if .MutationRoot }}\n\t\tec := executionContext{graphql.GetRequestContext(ctx), e}\n\n\t\tbuf := ec.RequestMiddleware(ctx, func(ctx context.Context) []byte {\n\t\t\tdata := ec._{{.MutationRoot.GQLType}}(ctx, op.SelectionSet)\n\t\t\tvar buf bytes.Buffer\n\t\t\tdata.MarshalGQL(&buf)\n\t\t\treturn buf.Bytes()\n\t\t})\n\n\t\treturn &graphql.Response{\n\t\t\tData: buf,\n\t\t\tErrors: ec.Errors,\n\t\t\tExtensions: ec.Extensions,\n\t\t}\n\t{{- else }}\n\t\treturn graphql.ErrorResponse(ctx, \"mutations are not supported\")\n\t{{- end }}\n}\n\nfunc (e *executableSchema) Subscription(ctx context.Context, op *ast.OperationDefinition) func() *graphql.Response {\n\t{{- if .SubscriptionRoot }}\n\t\tec := executionContext{graphql.GetRequestContext(ctx), e}\n\n\t\tnext := ec._{{.SubscriptionRoot.GQLType}}(ctx, op.SelectionSet)\n\t\tif ec.Errors != nil {\n\t\t\treturn graphql.OneShot(&graphql.Response{Data: []byte(\"null\"), Errors: ec.Errors})\n\t\t}\n\n\t\tvar buf bytes.Buffer\n\t\treturn func() *graphql.Response {\n\t\t\tbuf := ec.RequestMiddleware(ctx, func(ctx context.Context) []byte {\n\t\t\t\tbuf.Reset()\n\t\t\t\tdata := next()\n\n\t\t\t\tif data == nil {\n\t\t\t\t\treturn nil\n\t\t\t\t}\n\t\t\t\tdata.MarshalGQL(&buf)\n\t\t\t\treturn buf.Bytes()\n\t\t\t})\n\n\t\t\tif buf == nil {\n\t\t\t\treturn nil\n\t\t\t}\n\n\t\t\treturn &graphql.Response{\n\t\t\t\tData: buf,\n\t\t\t\tErrors: ec.Errors,\n\t\t\t\tExtensions: ec.Extensions,\n\t\t\t}\n\t\t}\n\t{{- else }}\n\t\treturn graphql.OneShot(graphql.ErrorResponse(ctx, \"subscriptions are not supported\"))\n\t{{- end }}\n}\n\ntype executionContext struct {\n\t*graphql.RequestContext\n\t*executableSchema\n}\n\n{{- range $object := .Objects }}\n\t{{ template \"object.gotpl\" $object }}\n\n\t{{- range $field := $object.Fields }}\n\t\t{{ template \"field.gotpl\" $field }}\n\t{{ end }}\n{{- end}}\n\n{{- range $interface := .Interfaces }}\n\t{{ template \"interface.gotpl\" $interface }}\n{{- end }}\n\n{{- range $input := .Inputs }}\n\t{{ template \"input.gotpl\" $input }}\n{{- end }}\n\nfunc (ec *executionContext) FieldMiddleware(ctx context.Context, obj interface{}, next graphql.Resolver) (ret interface{}) {\n\tdefer func() {\n\t\tif r := recover(); r != nil {\n\t\t\tec.Error(ctx, ec.Recover(ctx, r))\n\t\t\tret = nil\n\t\t}\n\t}()\n\t{{- if .Directives }}\n\trctx := graphql.GetResolverContext(ctx)\n\tfor _, d := range rctx.Field.Definition.Directives {\n\t\tswitch d.Name {\n\t\t{{- range $directive := .Directives }}\n\t\tcase \"{{$directive.Name}}\":\n\t\t\tif ec.directives.{{$directive.Name|ucFirst}} != nil {\n\t\t\t\t{{- if $directive.Args }}\n\t\t\t\t\trawArgs := d.ArgumentMap(ec.Variables)\n\t\t\t\t\targs, err := {{ $directive.ArgsFunc }}(rawArgs)\n\t\t\t\t\tif err != nil {\n\t\t\t\t\t\tec.Error(ctx, err)\n\t\t\t\t\t\treturn nil\n\t\t\t\t\t}\n\t\t\t\t{{- end }}\n\t\t\t\tn := next\n\t\t\t\tnext = func(ctx context.Context) (interface{}, error) {\n\t\t\t\t\treturn ec.directives.{{$directive.Name|ucFirst}}({{$directive.CallArgs}})\n\t\t\t\t}\n\t\t\t}\n\t\t{{- end }}\n\t\t}\n\t}\n\t{{- end }}\n\tres, err := ec.ResolverMiddleware(ctx, next)\n\tif err != nil {\n\t\tec.Error(ctx, err)\n\t\treturn nil\n\t}\n\treturn res\n}\n\nfunc (ec *executionContext) introspectSchema() (*introspection.Schema, error) {\n\tif ec.DisableIntrospection {\n\t\treturn nil, errors.New(\"introspection disabled\")\n\t}\n\treturn introspection.WrapSchema(parsedSchema), nil\n}\n\nfunc (ec *executionContext) introspectType(name string) (*introspection.Type, error) {\n\tif ec.DisableIntrospection {\n\t\treturn nil, errors.New(\"introspection disabled\")\n\t}\n\treturn introspection.WrapTypeFromDef(parsedSchema, parsedSchema.Types[name]), nil\n}\n\nvar parsedSchema = gqlparser.MustLoadSchema(\n\t{{- range $filename, $schema := .SchemaRaw }}\n\t\t&ast.Source{Name: {{$filename|quote}}, Input: {{$schema|rawQuote}}},\n\t{{- end }}\n)\n", - "input.gotpl": "\t{{- if .IsMarshaled }}\n\tfunc Unmarshal{{ .GQLType }}(v interface{}) ({{.FullName}}, error) {\n\t\tvar it {{.FullName}}\n\t\tvar asMap = v.(map[string]interface{})\n\t\t{{ range $field := .Fields}}\n\t\t\t{{- if $field.Default}}\n\t\t\t\tif _, present := asMap[{{$field.GQLName|quote}}] ; !present {\n\t\t\t\t\tasMap[{{$field.GQLName|quote}}] = {{ $field.Default | dump }}\n\t\t\t\t}\n\t\t\t{{- end}}\n\t\t{{- end }}\n\n\t\tfor k, v := range asMap {\n\t\t\tswitch k {\n\t\t\t{{- range $field := .Fields }}\n\t\t\tcase {{$field.GQLName|quote}}:\n\t\t\t\tvar err error\n\t\t\t\t{{ $field.Unmarshal (print \"it.\" $field.GoFieldName) \"v\" }}\n\t\t\t\tif err != nil {\n\t\t\t\t\treturn it, err\n\t\t\t\t}\n\t\t\t{{- end }}\n\t\t\t}\n\t\t}\n\n\t\treturn it, nil\n\t}\n\t{{- end }}\n", - "interface.gotpl": "{{- $interface := . }}\n\nfunc (ec *executionContext) _{{$interface.GQLType}}(ctx context.Context, sel ast.SelectionSet, obj *{{$interface.FullName}}) graphql.Marshaler {\n\tswitch obj := (*obj).(type) {\n\tcase nil:\n\t\treturn graphql.Null\n\t{{- range $implementor := $interface.Implementors }}\n\t\t{{- if $implementor.ValueReceiver }}\n\t\t\tcase {{$implementor.FullName}}:\n\t\t\t\treturn ec._{{$implementor.GQLType}}(ctx, sel, &obj)\n\t\t{{- end}}\n\t\tcase *{{$implementor.FullName}}:\n\t\t\treturn ec._{{$implementor.GQLType}}(ctx, sel, obj)\n\t{{- end }}\n\tdefault:\n\t\tpanic(fmt.Errorf(\"unexpected type %T\", obj))\n\t}\n}\n", - "models.gotpl": "// Code generated by github.com/99designs/gqlgen, DO NOT EDIT.\n\npackage {{ .PackageName }}\n\nimport (\n\t%%%IMPORTS%%%\n\n\t{{ reserveImport \"context\" }}\n\t{{ reserveImport \"fmt\" }}\n\t{{ reserveImport \"io\" }}\n\t{{ reserveImport \"strconv\" }}\n\t{{ reserveImport \"time\" }}\n\t{{ reserveImport \"sync\" }}\n\t{{ reserveImport \"errors\" }}\n\t{{ reserveImport \"bytes\" }}\n\n\t{{ reserveImport \"github.com/vektah/gqlparser\" }}\n\t{{ reserveImport \"github.com/vektah/gqlparser/ast\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql/introspection\" }}\n)\n\n{{ range $model := .Models }}\n\t{{with .Description}} {{.|prefixLines \"// \"}} {{end}}\n\t{{- if .IsInterface }}\n\t\ttype {{.GoType}} interface {\n\t\t\tIs{{.GoType}}()\n\t\t}\n\t{{- else }}\n\t\ttype {{.GoType}} struct {\n\t\t\t{{- range $field := .Fields }}\n\t\t\t\t{{- with .Description}}\n\t\t\t\t\t{{.|prefixLines \"// \"}}\n\t\t\t\t{{- end}}\n\t\t\t\t{{- if $field.GoFieldName }}\n\t\t\t\t\t{{ $field.GoFieldName }} {{$field.Signature}} `json:\"{{$field.GQLName}}\"`\n\t\t\t\t{{- else }}\n\t\t\t\t\t{{ $field.GoFKName }} {{$field.GoFKType}}\n\t\t\t\t{{- end }}\n\t\t\t{{- end }}\n\t\t}\n\n\t\t{{- range $iface := .Implements }}\n\t\t\tfunc ({{$model.GoType}}) Is{{$iface.GoType}}() {}\n\t\t{{- end }}\n\n\t{{- end }}\n{{- end}}\n\n{{ range $enum := .Enums }}\n\t{{with .Description}}{{.|prefixLines \"// \"}} {{end}}\n\ttype {{.GoType}} string\n\tconst (\n\t{{- range $value := .Values}}\n\t\t{{- with .Description}}\n\t\t\t{{.|prefixLines \"// \"}}\n\t\t{{- end}}\n\t\t{{$enum.GoType}}{{ .Name|toCamel }} {{$enum.GoType}} = {{.Name|quote}}\n\t{{- end }}\n\t)\n\n\tfunc (e {{.GoType}}) IsValid() bool {\n\t\tswitch e {\n\t\tcase {{ range $index, $element := .Values}}{{if $index}},{{end}}{{ $enum.GoType }}{{ $element.Name|toCamel }}{{end}}:\n\t\t\treturn true\n\t\t}\n\t\treturn false\n\t}\n\n\tfunc (e {{.GoType}}) String() string {\n\t\treturn string(e)\n\t}\n\n\tfunc (e *{{.GoType}}) UnmarshalGQL(v interface{}) error {\n\t\tstr, ok := v.(string)\n\t\tif !ok {\n\t\t\treturn fmt.Errorf(\"enums must be strings\")\n\t\t}\n\n\t\t*e = {{.GoType}}(str)\n\t\tif !e.IsValid() {\n\t\t\treturn fmt.Errorf(\"%s is not a valid {{.GQLType}}\", str)\n\t\t}\n\t\treturn nil\n\t}\n\n\tfunc (e {{.GoType}}) MarshalGQL(w io.Writer) {\n\t\tfmt.Fprint(w, strconv.Quote(e.String()))\n\t}\n\n{{- end }}\n", - "object.gotpl": "{{ $object := . }}\n\nvar {{ $object.GQLType|lcFirst}}Implementors = {{$object.Implementors}}\n\n// nolint: gocyclo, errcheck, gas, goconst\n{{- if .Stream }}\nfunc (ec *executionContext) _{{$object.GQLType}}(ctx context.Context, sel ast.SelectionSet) func() graphql.Marshaler {\n\tfields := graphql.CollectFields(ctx, sel, {{$object.GQLType|lcFirst}}Implementors)\n\tctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{\n\t\tObject: {{$object.GQLType|quote}},\n\t})\n\tif len(fields) != 1 {\n\t\tec.Errorf(ctx, \"must subscribe to exactly one stream\")\n\t\treturn nil\n\t}\n\n\tswitch fields[0].Name {\n\t{{- range $field := $object.Fields }}\n\tcase \"{{$field.GQLName}}\":\n\t\treturn ec._{{$object.GQLType}}_{{$field.GQLName}}(ctx, fields[0])\n\t{{- end }}\n\tdefault:\n\t\tpanic(\"unknown field \" + strconv.Quote(fields[0].Name))\n\t}\n}\n{{- else }}\nfunc (ec *executionContext) _{{$object.GQLType}}(ctx context.Context, sel ast.SelectionSet{{if not $object.Root}}, obj *{{$object.FullName}} {{end}}) graphql.Marshaler {\n\tfields := graphql.CollectFields(ctx, sel, {{$object.GQLType|lcFirst}}Implementors)\n\t{{if $object.Root}}\n\t\tctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{\n\t\t\tObject: {{$object.GQLType|quote}},\n\t\t})\n\t{{end}}\n\n\t{{if $object.IsConcurrent}} var wg sync.WaitGroup {{end}}\n\tout := graphql.NewOrderedMap(len(fields))\n\tinvalid := false\n\tfor i, field := range fields {\n\t\tout.Keys[i] = field.Alias\n\n\t\tswitch field.Name {\n\t\tcase \"__typename\":\n\t\t\tout.Values[i] = graphql.MarshalString({{$object.GQLType|quote}})\n\t\t{{- range $field := $object.Fields }}\n\t\tcase \"{{$field.GQLName}}\":\n\t\t\t{{- if $field.IsConcurrent }}\n\t\t\t\twg.Add(1)\n\t\t\t\tgo func(i int, field graphql.CollectedField) {\n\t\t\t{{- end }}\n\t\t\t\tout.Values[i] = ec._{{$object.GQLType}}_{{$field.GQLName}}(ctx, field{{if not $object.Root}}, obj{{end}})\n\t\t\t\t{{- if $field.ASTType.NonNull }}\n\t\t\t\t\tif out.Values[i] == graphql.Null {\n\t\t\t\t\t\tinvalid = true\n\t\t\t\t\t}\n\t\t\t\t{{- end }}\n\t\t\t{{- if $field.IsConcurrent }}\n\t\t\t\t\twg.Done()\n\t\t\t\t}(i, field)\n\t\t\t{{- end }}\n\t\t{{- end }}\n\t\tdefault:\n\t\t\tpanic(\"unknown field \" + strconv.Quote(field.Name))\n\t\t}\n\t}\n\t{{if $object.IsConcurrent}} wg.Wait() {{end}}\n\tif invalid { return graphql.Null }\n\treturn out\n}\n{{- end }}\n", - "resolver.gotpl": "package {{ .PackageName }}\n\nimport (\n\t%%%IMPORTS%%%\n\n\t{{ reserveImport \"context\" }}\n\t{{ reserveImport \"fmt\" }}\n\t{{ reserveImport \"io\" }}\n\t{{ reserveImport \"strconv\" }}\n\t{{ reserveImport \"time\" }}\n\t{{ reserveImport \"sync\" }}\n\t{{ reserveImport \"errors\" }}\n\t{{ reserveImport \"bytes\" }}\n\n\t{{ reserveImport \"github.com/99designs/gqlgen/handler\" }}\n\t{{ reserveImport \"github.com/vektah/gqlparser\" }}\n\t{{ reserveImport \"github.com/vektah/gqlparser/ast\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/graphql/introspection\" }}\n)\n\ntype {{.ResolverType}} struct {}\n\n{{ range $object := .Objects -}}\n\t{{- if $object.HasResolvers -}}\n\t\tfunc (r *{{$.ResolverType}}) {{$object.GQLType}}() {{ $object.ResolverInterface.FullName }} {\n\t\t\treturn &{{lcFirst $object.GQLType}}Resolver{r}\n\t\t}\n\t{{ end -}}\n{{ end }}\n\n{{ range $object := .Objects -}}\n\t{{- if $object.HasResolvers -}}\n\t\ttype {{lcFirst $object.GQLType}}Resolver struct { *Resolver }\n\n\t\t{{ range $field := $object.Fields -}}\n\t\t\t{{- if $field.IsResolver -}}\n\t\t\tfunc (r *{{lcFirst $object.GQLType}}Resolver) {{ $field.ShortResolverDeclaration }} {\n\t\t\t\tpanic(\"not implemented\")\n\t\t\t}\n\t\t\t{{ end -}}\n\t\t{{ end -}}\n\t{{ end -}}\n{{ end }}\n", - "server.gotpl": "package main\n\nimport (\n\t%%%IMPORTS%%%\n\n\t{{ reserveImport \"context\" }}\n\t{{ reserveImport \"log\" }}\n\t{{ reserveImport \"net/http\" }}\n\t{{ reserveImport \"os\" }}\n\t{{ reserveImport \"github.com/99designs/gqlgen/handler\" }}\n)\n\nconst defaultPort = \"8080\"\n\nfunc main() {\n\tport := os.Getenv(\"PORT\")\n\tif port == \"\" {\n\t\tport = defaultPort\n\t}\n\n\thttp.Handle(\"/\", handler.Playground(\"GraphQL playground\", \"/query\"))\n\thttp.Handle(\"/query\", handler.GraphQL({{ lookupImport .ExecPackageName }}.NewExecutableSchema({{ lookupImport .ExecPackageName}}.Config{Resolvers: &{{ lookupImport .ResolverPackageName}}.Resolver{}})))\n\n\tlog.Printf(\"connect to http://localhost:%s/ for GraphQL playground\", port)\n\tlog.Fatal(http.ListenAndServe(\":\" + port, nil))\n}\n", -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/import.go b/vendor/github.com/99designs/gqlgen/codegen/templates/import.go index c9db2d96..effe9a0d 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/import.go +++ b/vendor/github.com/99designs/gqlgen/codegen/templates/import.go @@ -2,10 +2,10 @@ package templates import ( "fmt" - "go/build" + "go/types" "strconv" - "github.com/99designs/gqlgen/internal/gopath" + "github.com/99designs/gqlgen/internal/code" ) type Import struct { @@ -38,43 +38,42 @@ func (s *Imports) String() string { return res } -func (s *Imports) Reserve(path string, aliases ...string) string { +func (s *Imports) Reserve(path string, aliases ...string) (string, error) { if path == "" { panic("empty ambient import") } // if we are referencing our own package we dont need an import - if gopath.MustDir2Import(s.destDir) == path { - return "" - } - - pkg, err := build.Default.Import(path, s.destDir, 0) - if err != nil { - panic(err) + if code.ImportPathForDir(s.destDir) == path { + return "", nil } + name := code.NameForPackage(path) var alias string if len(aliases) != 1 { - alias = pkg.Name + alias = name } else { alias = aliases[0] } if existing := s.findByPath(path); existing != nil { - panic("ambient import already exists") + if existing.Alias == alias { + return "", nil + } + return "", fmt.Errorf("ambient import already exists") } if alias := s.findByAlias(alias); alias != nil { - panic("ambient import collides on an alias") + return "", fmt.Errorf("ambient import collides on an alias") } s.imports = append(s.imports, &Import{ - Name: pkg.Name, + Name: name, Path: path, Alias: alias, }) - return "" + return "", nil } func (s *Imports) Lookup(path string) string { @@ -82,8 +81,10 @@ func (s *Imports) Lookup(path string) string { return "" } + path = code.NormalizeVendor(path) + // if we are referencing our own package we dont need an import - if gopath.MustDir2Import(s.destDir) == path { + if code.ImportPathForDir(s.destDir) == path { return "" } @@ -91,13 +92,8 @@ func (s *Imports) Lookup(path string) string { return existing.Alias } - pkg, err := build.Default.Import(path, s.destDir, 0) - if err != nil { - panic(err) - } - imp := &Import{ - Name: pkg.Name, + Name: code.NameForPackage(path), Path: path, } s.imports = append(s.imports, imp) @@ -116,6 +112,12 @@ func (s *Imports) Lookup(path string) string { return imp.Alias } +func (s *Imports) LookupType(t types.Type) string { + return types.TypeString(t, func(i *types.Package) string { + return s.Lookup(i.Path()) + }) +} + func (s Imports) findByPath(importPath string) *Import { for _, imp := range s.imports { if imp.Path == importPath { diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/input.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/input.gotpl deleted file mode 100644 index f543608d..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/input.gotpl +++ /dev/null @@ -1,28 +0,0 @@ - {{- if .IsMarshaled }} - func Unmarshal{{ .GQLType }}(v interface{}) ({{.FullName}}, error) { - var it {{.FullName}} - var asMap = v.(map[string]interface{}) - {{ range $field := .Fields}} - {{- if $field.Default}} - if _, present := asMap[{{$field.GQLName|quote}}] ; !present { - asMap[{{$field.GQLName|quote}}] = {{ $field.Default | dump }} - } - {{- end}} - {{- end }} - - for k, v := range asMap { - switch k { - {{- range $field := .Fields }} - case {{$field.GQLName|quote}}: - var err error - {{ $field.Unmarshal (print "it." $field.GoFieldName) "v" }} - if err != nil { - return it, err - } - {{- end }} - } - } - - return it, nil - } - {{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/interface.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/interface.gotpl deleted file mode 100644 index 84cbe500..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/interface.gotpl +++ /dev/null @@ -1,18 +0,0 @@ -{{- $interface := . }} - -func (ec *executionContext) _{{$interface.GQLType}}(ctx context.Context, sel ast.SelectionSet, obj *{{$interface.FullName}}) graphql.Marshaler { - switch obj := (*obj).(type) { - case nil: - return graphql.Null - {{- range $implementor := $interface.Implementors }} - {{- if $implementor.ValueReceiver }} - case {{$implementor.FullName}}: - return ec._{{$implementor.GQLType}}(ctx, sel, &obj) - {{- end}} - case *{{$implementor.FullName}}: - return ec._{{$implementor.GQLType}}(ctx, sel, obj) - {{- end }} - default: - panic(fmt.Errorf("unexpected type %T", obj)) - } -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/models.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/models.gotpl deleted file mode 100644 index db63a996..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/models.gotpl +++ /dev/null @@ -1,91 +0,0 @@ -// Code generated by github.com/99designs/gqlgen, DO NOT EDIT. - -package {{ .PackageName }} - -import ( - %%%IMPORTS%%% - - {{ reserveImport "context" }} - {{ reserveImport "fmt" }} - {{ reserveImport "io" }} - {{ reserveImport "strconv" }} - {{ reserveImport "time" }} - {{ reserveImport "sync" }} - {{ reserveImport "errors" }} - {{ reserveImport "bytes" }} - - {{ reserveImport "github.com/vektah/gqlparser" }} - {{ reserveImport "github.com/vektah/gqlparser/ast" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} -) - -{{ range $model := .Models }} - {{with .Description}} {{.|prefixLines "// "}} {{end}} - {{- if .IsInterface }} - type {{.GoType}} interface { - Is{{.GoType}}() - } - {{- else }} - type {{.GoType}} struct { - {{- range $field := .Fields }} - {{- with .Description}} - {{.|prefixLines "// "}} - {{- end}} - {{- if $field.GoFieldName }} - {{ $field.GoFieldName }} {{$field.Signature}} `json:"{{$field.GQLName}}"` - {{- else }} - {{ $field.GoFKName }} {{$field.GoFKType}} - {{- end }} - {{- end }} - } - - {{- range $iface := .Implements }} - func ({{$model.GoType}}) Is{{$iface.GoType}}() {} - {{- end }} - - {{- end }} -{{- end}} - -{{ range $enum := .Enums }} - {{with .Description}}{{.|prefixLines "// "}} {{end}} - type {{.GoType}} string - const ( - {{- range $value := .Values}} - {{- with .Description}} - {{.|prefixLines "// "}} - {{- end}} - {{$enum.GoType}}{{ .Name|toCamel }} {{$enum.GoType}} = {{.Name|quote}} - {{- end }} - ) - - func (e {{.GoType}}) IsValid() bool { - switch e { - case {{ range $index, $element := .Values}}{{if $index}},{{end}}{{ $enum.GoType }}{{ $element.Name|toCamel }}{{end}}: - return true - } - return false - } - - func (e {{.GoType}}) String() string { - return string(e) - } - - func (e *{{.GoType}}) UnmarshalGQL(v interface{}) error { - str, ok := v.(string) - if !ok { - return fmt.Errorf("enums must be strings") - } - - *e = {{.GoType}}(str) - if !e.IsValid() { - return fmt.Errorf("%s is not a valid {{.GQLType}}", str) - } - return nil - } - - func (e {{.GoType}}) MarshalGQL(w io.Writer) { - fmt.Fprint(w, strconv.Quote(e.String())) - } - -{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/object.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/object.gotpl deleted file mode 100644 index e98cbe1e..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/object.gotpl +++ /dev/null @@ -1,69 +0,0 @@ -{{ $object := . }} - -var {{ $object.GQLType|lcFirst}}Implementors = {{$object.Implementors}} - -// nolint: gocyclo, errcheck, gas, goconst -{{- if .Stream }} -func (ec *executionContext) _{{$object.GQLType}}(ctx context.Context, sel ast.SelectionSet) func() graphql.Marshaler { - fields := graphql.CollectFields(ctx, sel, {{$object.GQLType|lcFirst}}Implementors) - ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ - Object: {{$object.GQLType|quote}}, - }) - if len(fields) != 1 { - ec.Errorf(ctx, "must subscribe to exactly one stream") - return nil - } - - switch fields[0].Name { - {{- range $field := $object.Fields }} - case "{{$field.GQLName}}": - return ec._{{$object.GQLType}}_{{$field.GQLName}}(ctx, fields[0]) - {{- end }} - default: - panic("unknown field " + strconv.Quote(fields[0].Name)) - } -} -{{- else }} -func (ec *executionContext) _{{$object.GQLType}}(ctx context.Context, sel ast.SelectionSet{{if not $object.Root}}, obj *{{$object.FullName}} {{end}}) graphql.Marshaler { - fields := graphql.CollectFields(ctx, sel, {{$object.GQLType|lcFirst}}Implementors) - {{if $object.Root}} - ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{ - Object: {{$object.GQLType|quote}}, - }) - {{end}} - - {{if $object.IsConcurrent}} var wg sync.WaitGroup {{end}} - out := graphql.NewOrderedMap(len(fields)) - invalid := false - for i, field := range fields { - out.Keys[i] = field.Alias - - switch field.Name { - case "__typename": - out.Values[i] = graphql.MarshalString({{$object.GQLType|quote}}) - {{- range $field := $object.Fields }} - case "{{$field.GQLName}}": - {{- if $field.IsConcurrent }} - wg.Add(1) - go func(i int, field graphql.CollectedField) { - {{- end }} - out.Values[i] = ec._{{$object.GQLType}}_{{$field.GQLName}}(ctx, field{{if not $object.Root}}, obj{{end}}) - {{- if $field.ASTType.NonNull }} - if out.Values[i] == graphql.Null { - invalid = true - } - {{- end }} - {{- if $field.IsConcurrent }} - wg.Done() - }(i, field) - {{- end }} - {{- end }} - default: - panic("unknown field " + strconv.Quote(field.Name)) - } - } - {{if $object.IsConcurrent}} wg.Wait() {{end}} - if invalid { return graphql.Null } - return out -} -{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/resolver.gotpl b/vendor/github.com/99designs/gqlgen/codegen/templates/resolver.gotpl deleted file mode 100644 index 53ba8c43..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/resolver.gotpl +++ /dev/null @@ -1,44 +0,0 @@ -package {{ .PackageName }} - -import ( - %%%IMPORTS%%% - - {{ reserveImport "context" }} - {{ reserveImport "fmt" }} - {{ reserveImport "io" }} - {{ reserveImport "strconv" }} - {{ reserveImport "time" }} - {{ reserveImport "sync" }} - {{ reserveImport "errors" }} - {{ reserveImport "bytes" }} - - {{ reserveImport "github.com/99designs/gqlgen/handler" }} - {{ reserveImport "github.com/vektah/gqlparser" }} - {{ reserveImport "github.com/vektah/gqlparser/ast" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql" }} - {{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} -) - -type {{.ResolverType}} struct {} - -{{ range $object := .Objects -}} - {{- if $object.HasResolvers -}} - func (r *{{$.ResolverType}}) {{$object.GQLType}}() {{ $object.ResolverInterface.FullName }} { - return &{{lcFirst $object.GQLType}}Resolver{r} - } - {{ end -}} -{{ end }} - -{{ range $object := .Objects -}} - {{- if $object.HasResolvers -}} - type {{lcFirst $object.GQLType}}Resolver struct { *Resolver } - - {{ range $field := $object.Fields -}} - {{- if $field.IsResolver -}} - func (r *{{lcFirst $object.GQLType}}Resolver) {{ $field.ShortResolverDeclaration }} { - panic("not implemented") - } - {{ end -}} - {{ end -}} - {{ end -}} -{{ end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/templates.go b/vendor/github.com/99designs/gqlgen/codegen/templates/templates.go index 22e5d739..4c292732 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/templates.go +++ b/vendor/github.com/99designs/gqlgen/codegen/templates/templates.go @@ -1,13 +1,14 @@ -//go:generate go run ./inliner/inliner.go - package templates import ( "bytes" "fmt" + "go/types" "io/ioutil" "os" "path/filepath" + "reflect" + "runtime" "sort" "strconv" "strings" @@ -15,40 +16,141 @@ import ( "unicode" "github.com/99designs/gqlgen/internal/imports" - "github.com/pkg/errors" ) // this is done with a global because subtemplates currently get called in functions. Lets aim to remove this eventually. var CurrentImports *Imports -func Run(name string, tpldata interface{}) (*bytes.Buffer, error) { - t := template.New("").Funcs(template.FuncMap{ - "ucFirst": ucFirst, - "lcFirst": lcFirst, - "quote": strconv.Quote, - "rawQuote": rawQuote, - "toCamel": ToCamel, - "dump": dump, - "prefixLines": prefixLines, - "reserveImport": CurrentImports.Reserve, - "lookupImport": CurrentImports.Lookup, +type Options struct { + PackageName string + Filename string + RegionTags bool + GeneratedHeader bool + Data interface{} + Funcs template.FuncMap +} + +func Render(cfg Options) error { + if CurrentImports != nil { + panic(fmt.Errorf("recursive or concurrent call to RenderToFile detected")) + } + CurrentImports = &Imports{destDir: filepath.Dir(cfg.Filename)} + + // load path relative to calling source file + _, callerFile, _, _ := runtime.Caller(1) + rootDir := filepath.Dir(callerFile) + + funcs := Funcs() + for n, f := range cfg.Funcs { + funcs[n] = f + } + t := template.New("").Funcs(funcs) + + var roots []string + // load all the templates in the directory + err := filepath.Walk(rootDir, func(path string, info os.FileInfo, err error) error { + if err != nil { + return err + } + name := filepath.ToSlash(strings.TrimPrefix(path, rootDir+string(os.PathSeparator))) + if !strings.HasSuffix(info.Name(), ".gotpl") { + return nil + } + b, err := ioutil.ReadFile(path) + if err != nil { + return err + } + + t, err = t.New(name).Parse(string(b)) + if err != nil { + return errors.Wrap(err, cfg.Filename) + } + + roots = append(roots, name) + + return nil }) + if err != nil { + return errors.Wrap(err, "locating templates") + } - for filename, data := range data { - _, err := t.New(filename).Parse(data) + // then execute all the important looking ones in order, adding them to the same file + sort.Slice(roots, func(i, j int) bool { + // important files go first + if strings.HasSuffix(roots[i], "!.gotpl") { + return true + } + if strings.HasSuffix(roots[j], "!.gotpl") { + return false + } + return roots[i] < roots[j] + }) + var buf bytes.Buffer + for _, root := range roots { + if cfg.RegionTags { + buf.WriteString("\n// region " + center(70, "*", " "+root+" ") + "\n") + } + err = t.Lookup(root).Execute(&buf, cfg.Data) if err != nil { - panic(err) + return errors.Wrap(err, root) + } + if cfg.RegionTags { + buf.WriteString("\n// endregion " + center(70, "*", " "+root+" ") + "\n") } } - buf := &bytes.Buffer{} - err := t.Lookup(name).Execute(buf, tpldata) + var result bytes.Buffer + if cfg.GeneratedHeader { + result.WriteString("// Code generated by github.com/99designs/gqlgen, DO NOT EDIT.\n\n") + } + result.WriteString("package ") + result.WriteString(cfg.PackageName) + result.WriteString("\n\n") + result.WriteString("import (\n") + result.WriteString(CurrentImports.String()) + result.WriteString(")\n") + _, err = buf.WriteTo(&result) if err != nil { - return nil, err + return err } + CurrentImports = nil - return buf, nil + return write(cfg.Filename, result.Bytes()) +} + +func center(width int, pad string, s string) string { + if len(s)+2 > width { + return s + } + lpad := (width - len(s)) / 2 + rpad := width - (lpad + len(s)) + return strings.Repeat(pad, lpad) + s + strings.Repeat(pad, rpad) +} + +func Funcs() template.FuncMap { + return template.FuncMap{ + "ucFirst": ucFirst, + "lcFirst": lcFirst, + "quote": strconv.Quote, + "rawQuote": rawQuote, + "dump": Dump, + "ref": ref, + "ts": TypeIdentifier, + "call": Call, + "prefixLines": prefixLines, + "notNil": notNil, + "reserveImport": CurrentImports.Reserve, + "lookupImport": CurrentImports.Lookup, + "go": ToGo, + "goPrivate": ToGoPrivate, + "add": func(a, b int) int { + return a + b + }, + "render": func(filename string, tpldata interface{}) (*bytes.Buffer, error) { + return render(resolveName(filename, 0), tpldata) + }, + } } func ucFirst(s string) string { @@ -74,37 +176,276 @@ func isDelimiter(c rune) bool { return c == '-' || c == '_' || unicode.IsSpace(c) } -func ToCamel(s string) string { - buffer := make([]rune, 0, len(s)) - upper := true - lastWasUpper := false +func ref(p types.Type) string { + return CurrentImports.LookupType(p) +} - for _, c := range s { - if isDelimiter(c) { - upper = true +var pkgReplacer = strings.NewReplacer( + "/", "ᚋ", + ".", "ᚗ", + "-", "ᚑ", +) + +func TypeIdentifier(t types.Type) string { + res := "" + for { + switch it := t.(type) { + case *types.Pointer: + t.Underlying() + res += "ᚖ" + t = it.Elem() + case *types.Slice: + res += "ᚕ" + t = it.Elem() + case *types.Named: + res += pkgReplacer.Replace(it.Obj().Pkg().Path()) + res += "ᚐ" + res += it.Obj().Name() + return res + case *types.Basic: + res += it.Name() + return res + case *types.Map: + res += "map" + return res + case *types.Interface: + res += "interface" + return res + default: + panic(fmt.Errorf("unexpected type %T", it)) + } + } +} + +func Call(p *types.Func) string { + pkg := CurrentImports.Lookup(p.Pkg().Path()) + + if pkg != "" { + pkg += "." + } + + if p.Type() != nil { + // make sure the returned type is listed in our imports. + ref(p.Type().(*types.Signature).Results().At(0).Type()) + } + + return pkg + p.Name() +} + +func ToGo(name string) string { + runes := make([]rune, 0, len(name)) + + wordWalker(name, func(info *wordInfo) { + word := info.Word + if info.MatchCommonInitial { + word = strings.ToUpper(word) + } else if !info.HasCommonInitial { + if strings.ToUpper(word) == word || strings.ToLower(word) == word { + // FOO or foo → Foo + // FOo → FOo + word = ucFirst(strings.ToLower(word)) + } + } + runes = append(runes, []rune(word)...) + }) + + return string(runes) +} + +func ToGoPrivate(name string) string { + runes := make([]rune, 0, len(name)) + + first := true + wordWalker(name, func(info *wordInfo) { + word := info.Word + if first { + if strings.ToUpper(word) == word || strings.ToLower(word) == word { + // ID → id, CAMEL → camel + word = strings.ToLower(info.Word) + } else { + // ITicket → iTicket + word = lcFirst(info.Word) + } + first = false + } else if info.MatchCommonInitial { + word = strings.ToUpper(word) + } else if !info.HasCommonInitial { + word = ucFirst(strings.ToLower(word)) + } + runes = append(runes, []rune(word)...) + }) + + return sanitizeKeywords(string(runes)) +} + +type wordInfo struct { + Word string + MatchCommonInitial bool + HasCommonInitial bool +} + +// This function is based on the following code. +// https://github.com/golang/lint/blob/06c8688daad7faa9da5a0c2f163a3d14aac986ca/lint.go#L679 +func wordWalker(str string, f func(*wordInfo)) { + runes := []rune(str) + w, i := 0, 0 // index of start of word, scan + hasCommonInitial := false + for i+1 <= len(runes) { + eow := false // whether we hit the end of a word + if i+1 == len(runes) { + eow = true + } else if isDelimiter(runes[i+1]) { + // underscore; shift the remainder forward over any run of underscores + eow = true + n := 1 + for i+n+1 < len(runes) && isDelimiter(runes[i+n+1]) { + n++ + } + + // Leave at most one underscore if the underscore is between two digits + if i+n+1 < len(runes) && unicode.IsDigit(runes[i]) && unicode.IsDigit(runes[i+n+1]) { + n-- + } + + copy(runes[i+1:], runes[i+n+1:]) + runes = runes[:len(runes)-n] + } else if unicode.IsLower(runes[i]) && !unicode.IsLower(runes[i+1]) { + // lower->non-lower + eow = true + } + i++ + + // [w,i) is a word. + word := string(runes[w:i]) + if !eow && commonInitialisms[word] && !unicode.IsLower(runes[i]) { + // through + // split IDFoo → ID, Foo + // but URLs → URLs + } else if !eow { + if commonInitialisms[word] { + hasCommonInitial = true + } continue } - if !lastWasUpper && unicode.IsUpper(c) { - upper = true + + matchCommonInitial := false + if commonInitialisms[strings.ToUpper(word)] { + hasCommonInitial = true + matchCommonInitial = true } - if upper { - buffer = append(buffer, unicode.ToUpper(c)) - } else { - buffer = append(buffer, unicode.ToLower(c)) + f(&wordInfo{ + Word: word, + MatchCommonInitial: matchCommonInitial, + HasCommonInitial: hasCommonInitial, + }) + hasCommonInitial = false + w = i + } +} + +var keywords = []string{ + "break", + "default", + "func", + "interface", + "select", + "case", + "defer", + "go", + "map", + "struct", + "chan", + "else", + "goto", + "package", + "switch", + "const", + "fallthrough", + "if", + "range", + "type", + "continue", + "for", + "import", + "return", + "var", + "_", +} + +// sanitizeKeywords prevents collisions with go keywords for arguments to resolver functions +func sanitizeKeywords(name string) string { + for _, k := range keywords { + if name == k { + return name + "Arg" } - upper = false - lastWasUpper = unicode.IsUpper(c) } + return name +} - return string(buffer) +// commonInitialisms is a set of common initialisms. +// Only add entries that are highly unlikely to be non-initialisms. +// For instance, "ID" is fine (Freudian code is rare), but "AND" is not. +var commonInitialisms = map[string]bool{ + "ACL": true, + "API": true, + "ASCII": true, + "CPU": true, + "CSS": true, + "DNS": true, + "EOF": true, + "GUID": true, + "HTML": true, + "HTTP": true, + "HTTPS": true, + "ID": true, + "IP": true, + "JSON": true, + "LHS": true, + "QPS": true, + "RAM": true, + "RHS": true, + "RPC": true, + "SLA": true, + "SMTP": true, + "SQL": true, + "SSH": true, + "TCP": true, + "TLS": true, + "TTL": true, + "UDP": true, + "UI": true, + "UID": true, + "UUID": true, + "URI": true, + "URL": true, + "UTF8": true, + "VM": true, + "XML": true, + "XMPP": true, + "XSRF": true, + "XSS": true, } func rawQuote(s string) string { return "`" + strings.Replace(s, "`", "`+\"`\"+`", -1) + "`" } -func dump(val interface{}) string { +func notNil(field string, data interface{}) bool { + v := reflect.ValueOf(data) + + if v.Kind() == reflect.Ptr { + v = v.Elem() + } + if v.Kind() != reflect.Struct { + return false + } + val := v.FieldByName(field) + + return val.IsValid() && !val.IsNil() +} + +func Dump(val interface{}) string { switch val := val.(type) { case int: return strconv.Itoa(val) @@ -121,7 +462,7 @@ func dump(val interface{}) string { case []interface{}: var parts []string for _, part := range val { - parts = append(parts, dump(part)) + parts = append(parts, Dump(part)) } return "[]interface{}{" + strings.Join(parts, ",") + "}" case map[string]interface{}: @@ -138,7 +479,7 @@ func dump(val interface{}) string { buf.WriteString(strconv.Quote(key)) buf.WriteString(":") - buf.WriteString(dump(data)) + buf.WriteString(Dump(data)) buf.WriteString(",") } buf.WriteString("}") @@ -152,22 +493,33 @@ func prefixLines(prefix, s string) string { return prefix + strings.Replace(s, "\n", "\n"+prefix, -1) } -func RenderToFile(tpl string, filename string, data interface{}) error { - if CurrentImports != nil { - panic(fmt.Errorf("recursive or concurrent call to RenderToFile detected")) +func resolveName(name string, skip int) string { + if name[0] == '.' { + // load path relative to calling source file + _, callerFile, _, _ := runtime.Caller(skip + 1) + return filepath.Join(filepath.Dir(callerFile), name[1:]) } - CurrentImports = &Imports{destDir: filepath.Dir(filename)} - var buf *bytes.Buffer - buf, err := Run(tpl, data) + // load path relative to this directory + _, callerFile, _, _ := runtime.Caller(0) + return filepath.Join(filepath.Dir(callerFile), name) +} + +func render(filename string, tpldata interface{}) (*bytes.Buffer, error) { + t := template.New("").Funcs(Funcs()) + + b, err := ioutil.ReadFile(filename) if err != nil { - return errors.Wrap(err, filename+" generation failed") + return nil, err } - b := bytes.Replace(buf.Bytes(), []byte("%%%IMPORTS%%%"), []byte(CurrentImports.String()), -1) - CurrentImports = nil + t, err = t.New(filepath.Base(filename)).Parse(string(b)) + if err != nil { + panic(err) + } - return write(filename, b) + buf := &bytes.Buffer{} + return buf, t.Execute(buf, tpldata) } func write(filename string, b []byte) error { diff --git a/vendor/github.com/99designs/gqlgen/codegen/type.go b/vendor/github.com/99designs/gqlgen/codegen/type.go index 04d9bb2f..e0083732 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/type.go +++ b/vendor/github.com/99designs/gqlgen/codegen/type.go @@ -1,174 +1,18 @@ package codegen import ( - "strconv" - "strings" - - "github.com/99designs/gqlgen/codegen/templates" - - "github.com/vektah/gqlparser/ast" -) - -type NamedTypes map[string]*NamedType - -type NamedType struct { - Ref - IsScalar bool - IsInterface bool - IsInput bool - GQLType string // Name of the graphql type - Marshaler *Ref // If this type has an external marshaler this will be set -} - -type Ref struct { - GoType string // Name of the go type - Package string // the package the go type lives in - IsUserDefined bool // does the type exist in the typemap -} - -type Type struct { - *NamedType - - Modifiers []string - ASTType *ast.Type - AliasedType *Ref -} - -const ( - modList = "[]" - modPtr = "*" + "github.com/99designs/gqlgen/codegen/config" ) -func (t Ref) FullName() string { - return t.PkgDot() + t.GoType -} - -func (t Ref) PkgDot() string { - name := templates.CurrentImports.Lookup(t.Package) - if name == "" { - return "" - - } - - return name + "." -} - -func (t Type) Signature() string { - if t.AliasedType != nil { - return strings.Join(t.Modifiers, "") + t.AliasedType.FullName() - } - return strings.Join(t.Modifiers, "") + t.FullName() -} - -func (t Type) FullSignature() string { - pkg := "" - if t.Package != "" { - pkg = t.Package + "." - } - - return strings.Join(t.Modifiers, "") + pkg + t.GoType -} +func (b *builder) buildTypes() (map[string]*config.TypeReference, error) { + ret := map[string]*config.TypeReference{} -func (t Type) IsPtr() bool { - return len(t.Modifiers) > 0 && t.Modifiers[0] == modPtr -} + for _, ref := range b.Binder.References { + for ref != nil { + ret[ref.UniquenessKey()] = ref -func (t *Type) StripPtr() { - if !t.IsPtr() { - return + ref = ref.Elem() + } } - t.Modifiers = t.Modifiers[0 : len(t.Modifiers)-1] -} - -func (t Type) IsSlice() bool { - return len(t.Modifiers) > 0 && t.Modifiers[0] == modList || - len(t.Modifiers) > 1 && t.Modifiers[0] == modPtr && t.Modifiers[1] == modList -} - -func (t NamedType) IsMarshaled() bool { - return t.Marshaler != nil -} - -func (t Type) Unmarshal(result, raw string) string { - return t.unmarshal(result, raw, t.Modifiers, 1) -} - -func (t Type) unmarshal(result, raw string, remainingMods []string, depth int) string { - switch { - case len(remainingMods) > 0 && remainingMods[0] == modPtr: - ptr := "ptr" + strconv.Itoa(depth) - return tpl(`var {{.ptr}} {{.mods}}{{.t.FullName}} - if {{.raw}} != nil { - {{.next}} - {{.result}} = &{{.ptr -}} - } - `, map[string]interface{}{ - "ptr": ptr, - "t": t, - "raw": raw, - "result": result, - "mods": strings.Join(remainingMods[1:], ""), - "next": t.unmarshal(ptr, raw, remainingMods[1:], depth+1), - }) - - case len(remainingMods) > 0 && remainingMods[0] == modList: - var rawIf = "rawIf" + strconv.Itoa(depth) - var index = "idx" + strconv.Itoa(depth) - - return tpl(`var {{.rawSlice}} []interface{} - if {{.raw}} != nil { - if tmp1, ok := {{.raw}}.([]interface{}); ok { - {{.rawSlice}} = tmp1 - } else { - {{.rawSlice}} = []interface{}{ {{.raw}} } - } - } - {{.result}} = make({{.type}}, len({{.rawSlice}})) - for {{.index}} := range {{.rawSlice}} { - {{ .next -}} - }`, map[string]interface{}{ - "raw": raw, - "rawSlice": rawIf, - "index": index, - "result": result, - "type": strings.Join(remainingMods, "") + t.NamedType.FullName(), - "next": t.unmarshal(result+"["+index+"]", rawIf+"["+index+"]", remainingMods[1:], depth+1), - }) - } - - realResult := result - if t.AliasedType != nil { - result = "castTmp" - } - - return tpl(`{{- if .t.AliasedType }} - var castTmp {{.t.FullName}} - {{ end }} - {{- if eq .t.GoType "map[string]interface{}" }} - {{- .result }} = {{.raw}}.(map[string]interface{}) - {{- else if .t.Marshaler }} - {{- .result }}, err = {{ .t.Marshaler.PkgDot }}Unmarshal{{.t.Marshaler.GoType}}({{.raw}}) - {{- else -}} - err = (&{{.result}}).UnmarshalGQL({{.raw}}) - {{- end }} - {{- if .t.AliasedType }} - {{ .realResult }} = {{.t.AliasedType.FullName}}(castTmp) - {{- end }}`, map[string]interface{}{ - "realResult": realResult, - "result": result, - "raw": raw, - "t": t, - }) -} - -func (t Type) Marshal(val string) string { - if t.AliasedType != nil { - val = t.GoType + "(" + val + ")" - } - - if t.Marshaler != nil { - return "return " + t.Marshaler.PkgDot() + "Marshal" + t.Marshaler.GoType + "(" + val + ")" - } - - return "return " + val + return ret, nil } diff --git a/vendor/github.com/99designs/gqlgen/codegen/type.gotpl b/vendor/github.com/99designs/gqlgen/codegen/type.gotpl new file mode 100644 index 00000000..f727baac --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/codegen/type.gotpl @@ -0,0 +1,131 @@ +{{- range $type := .ReferencedTypes }} + {{ with $type.UnmarshalFunc }} + func (ec *executionContext) {{ . }}(ctx context.Context, v interface{}) ({{ $type.GO | ref }}, error) { + {{- if $type.IsNilable }} + if v == nil { return nil, nil } + {{- end }} + {{- if $type.IsPtr }} + res, err := ec.{{ $type.Elem.UnmarshalFunc }}(ctx, v) + return &res, err + {{- else if $type.IsSlice }} + var vSlice []interface{} + if v != nil { + if tmp1, ok := v.([]interface{}); ok { + vSlice = tmp1 + } else { + vSlice = []interface{}{ v } + } + } + var err error + res := make([]{{$type.GO.Elem | ref}}, len(vSlice)) + for i := range vSlice { + res[i], err = ec.{{ $type.Elem.UnmarshalFunc }}(ctx, vSlice[i]) + if err != nil { + return nil, err + } + } + return res, nil + {{- else }} + {{- if $type.Unmarshaler }} + {{- if $type.CastType }} + tmp, err := {{ $type.Unmarshaler | call }}(v) + return {{ $type.GO | ref }}(tmp), err + {{- else}} + return {{ $type.Unmarshaler | call }}(v) + {{- end }} + {{- else if eq ($type.GO | ref) "map[string]interface{}" }} + return v.(map[string]interface{}), nil + {{- else if $type.IsMarshaler -}} + var res {{ $type.GO | ref }} + return res, res.UnmarshalGQL(v) + {{- else }} + return ec.unmarshalInput{{ $type.GQL.Name }}(ctx, v) + {{- end }} + {{- end }} + } + {{- end }} + + {{ with $type.MarshalFunc }} + func (ec *executionContext) {{ . }}(ctx context.Context, sel ast.SelectionSet, v {{ $type.GO | ref }}) graphql.Marshaler { + {{- if $type.IsNilable }} + if v == nil { + {{- if $type.GQL.NonNull }} + if !ec.HasError(graphql.GetResolverContext(ctx)) { + ec.Errorf(ctx, "must not be null") + } + {{- end }} + return graphql.Null + } + {{- else if $type.HasIsZero }} + if v.IsZero() { + {{- if $type.GQL.NonNull }} + if !ec.HasError(graphql.GetResolverContext(ctx)) { + ec.Errorf(ctx, "must not be null") + } + {{- end }} + return graphql.Null + } + {{- end }} + + {{- if $type.IsSlice }} + {{- if not $type.GQL.NonNull }} + if v == nil { + return graphql.Null + } + {{- end }} + ret := make(graphql.Array, len(v)) + {{- if not $type.IsScalar }} + var wg sync.WaitGroup + isLen1 := len(v) == 1 + if !isLen1 { + wg.Add(len(v)) + } + {{- end }} + for i := range v { + {{- if not $type.IsScalar }} + i := i + rctx := &graphql.ResolverContext{ + Index: &i, + Result: &v[i], + } + ctx := graphql.WithResolverContext(ctx, rctx) + f := func(i int) { + defer func() { + if r := recover(); r != nil { + ec.Error(ctx, ec.Recover(ctx, r)) + ret = nil + } + }() + if !isLen1 { + defer wg.Done() + } + ret[i] = ec.{{ $type.Elem.MarshalFunc }}(ctx, sel, v[i]) + } + if isLen1 { + f(i) + } else { + go f(i) + } + {{ else }} + ret[i] = ec.{{ $type.Elem.MarshalFunc }}(ctx, sel, v[i]) + {{- end}} + } + {{ if not $type.IsScalar }} wg.Wait() {{ end }} + return ret + {{- else }} + + {{- if $type.IsMarshaler }} + return v + {{- else if $type.Marshaler }} + {{- if $type.IsPtr }} + return ec.{{ $type.Elem.MarshalFunc }}(ctx, sel, *v) + {{- else }} + return {{ $type.Marshaler | call }}({{- if $type.CastType }}{{ $type.CastType | ref }}(v){{else}}v{{- end }}) + {{- end }} + {{- else }} + return ec._{{$type.Definition.Name}}(ctx, sel, {{ if not $type.IsNilable}}&{{end}} v) + {{- end }} + {{- end }} + } + {{- end }} +{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/codegen/type_build.go b/vendor/github.com/99designs/gqlgen/codegen/type_build.go deleted file mode 100644 index 586b0db2..00000000 --- a/vendor/github.com/99designs/gqlgen/codegen/type_build.go +++ /dev/null @@ -1,100 +0,0 @@ -package codegen - -import ( - "go/types" - "strings" - - "github.com/vektah/gqlparser/ast" - "golang.org/x/tools/go/loader" -) - -// namedTypeFromSchema objects for every graphql type, including scalars. There should only be one instance of Type for each thing -func (cfg *Config) buildNamedTypes() NamedTypes { - types := map[string]*NamedType{} - for _, schemaType := range cfg.schema.Types { - t := namedTypeFromSchema(schemaType) - - if userEntry, ok := cfg.Models[t.GQLType]; ok && userEntry.Model != "" { - t.IsUserDefined = true - t.Package, t.GoType = pkgAndType(userEntry.Model) - } else if t.IsScalar { - t.Package = "github.com/99designs/gqlgen/graphql" - t.GoType = "String" - } - - types[t.GQLType] = t - } - return types -} - -func (cfg *Config) bindTypes(namedTypes NamedTypes, destDir string, prog *loader.Program) { - for _, t := range namedTypes { - if t.Package == "" { - continue - } - - def, _ := findGoType(prog, t.Package, "Marshal"+t.GoType) - switch def := def.(type) { - case *types.Func: - sig := def.Type().(*types.Signature) - cpy := t.Ref - t.Marshaler = &cpy - - t.Package, t.GoType = pkgAndType(sig.Params().At(0).Type().String()) - } - } -} - -// namedTypeFromSchema objects for every graphql type, including primitives. -// don't recurse into object fields or interfaces yet, lets make sure we have collected everything first. -func namedTypeFromSchema(schemaType *ast.Definition) *NamedType { - switch schemaType.Kind { - case ast.Scalar, ast.Enum: - return &NamedType{GQLType: schemaType.Name, IsScalar: true} - case ast.Interface, ast.Union: - return &NamedType{GQLType: schemaType.Name, IsInterface: true} - case ast.InputObject: - return &NamedType{GQLType: schemaType.Name, IsInput: true} - default: - return &NamedType{GQLType: schemaType.Name} - } -} - -// take a string in the form github.com/package/blah.Type and split it into package and type -func pkgAndType(name string) (string, string) { - parts := strings.Split(name, ".") - if len(parts) == 1 { - return "", name - } - - return normalizeVendor(strings.Join(parts[:len(parts)-1], ".")), parts[len(parts)-1] -} - -func (n NamedTypes) getType(t *ast.Type) *Type { - orig := t - var modifiers []string - for { - if t.Elem != nil { - modifiers = append(modifiers, modList) - t = t.Elem - } else { - if !t.NonNull { - modifiers = append(modifiers, modPtr) - } - if n[t.NamedType] == nil { - panic("missing type " + t.NamedType) - } - res := &Type{ - NamedType: n[t.NamedType], - Modifiers: modifiers, - ASTType: orig, - } - - if res.IsInterface { - res.StripPtr() - } - - return res - } - } -} diff --git a/vendor/github.com/99designs/gqlgen/codegen/util.go b/vendor/github.com/99designs/gqlgen/codegen/util.go index cc6246fd..59dfde08 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/util.go +++ b/vendor/github.com/99designs/gqlgen/codegen/util.go @@ -1,65 +1,30 @@ package codegen import ( - "fmt" "go/types" - "reflect" - "regexp" "strings" "github.com/pkg/errors" - "golang.org/x/tools/go/loader" ) -func findGoType(prog *loader.Program, pkgName string, typeName string) (types.Object, error) { - if pkgName == "" { - return nil, nil - } - fullName := typeName - if pkgName != "" { - fullName = pkgName + "." + typeName - } - - pkgName, err := resolvePkg(pkgName) - if err != nil { - return nil, errors.Errorf("unable to resolve package for %s: %s\n", fullName, err.Error()) - } - - pkg := prog.Imported[pkgName] - if pkg == nil { - return nil, errors.Errorf("required package was not loaded: %s", fullName) - } - - for astNode, def := range pkg.Defs { - if astNode.Name != typeName || def.Parent() == nil || def.Parent() != pkg.Pkg.Scope() { - continue - } - - return def, nil - } - - return nil, errors.Errorf("unable to find type %s\n", fullName) -} - -func findGoNamedType(prog *loader.Program, pkgName string, typeName string) (*types.Named, error) { - def, err := findGoType(prog, pkgName, typeName) - if err != nil { - return nil, err - } +func findGoNamedType(def types.Type) (*types.Named, error) { if def == nil { return nil, nil } - namedType, ok := def.Type().(*types.Named) + namedType, ok := def.(*types.Named) if !ok { - return nil, errors.Errorf("expected %s to be a named type, instead found %T\n", typeName, def.Type()) + return nil, errors.Errorf("expected %s to be a named type, instead found %T\n", def.String(), def) } return namedType, nil } -func findGoInterface(prog *loader.Program, pkgName string, typeName string) (*types.Interface, error) { - namedType, err := findGoNamedType(prog, pkgName, typeName) +func findGoInterface(def types.Type) (*types.Interface, error) { + if def == nil { + return nil, nil + } + namedType, err := findGoNamedType(def) if err != nil { return nil, err } @@ -69,319 +34,14 @@ func findGoInterface(prog *loader.Program, pkgName string, typeName string) (*ty underlying, ok := namedType.Underlying().(*types.Interface) if !ok { - return nil, errors.Errorf("expected %s to be a named interface, instead found %s", typeName, namedType.String()) + return nil, errors.Errorf("expected %s to be a named interface, instead found %s", def.String(), namedType.String()) } return underlying, nil } -func findMethod(typ *types.Named, name string) *types.Func { - for i := 0; i < typ.NumMethods(); i++ { - method := typ.Method(i) - if !method.Exported() { - continue - } - - if strings.EqualFold(method.Name(), name) { - return method - } - } - - if s, ok := typ.Underlying().(*types.Struct); ok { - for i := 0; i < s.NumFields(); i++ { - field := s.Field(i) - if !field.Anonymous() { - continue - } - - if named, ok := field.Type().(*types.Named); ok { - if f := findMethod(named, name); f != nil { - return f - } - } - } - } - - return nil -} - func equalFieldName(source, target string) bool { source = strings.Replace(source, "_", "", -1) target = strings.Replace(target, "_", "", -1) return strings.EqualFold(source, target) } - -// findField attempts to match the name to a struct field with the following -// priorites: -// 1. If struct tag is passed then struct tag has highest priority -// 2. Field in an embedded struct -// 3. Actual Field name -func findField(typ *types.Struct, name, structTag string) (*types.Var, error) { - var foundField *types.Var - foundFieldWasTag := false - - for i := 0; i < typ.NumFields(); i++ { - field := typ.Field(i) - - if structTag != "" { - tags := reflect.StructTag(typ.Tag(i)) - if val, ok := tags.Lookup(structTag); ok { - if equalFieldName(val, name) { - if foundField != nil && foundFieldWasTag { - return nil, errors.Errorf("tag %s is ambigious; multiple fields have the same tag value of %s", structTag, val) - } - - foundField = field - foundFieldWasTag = true - } - } - } - - if field.Anonymous() { - - fieldType := field.Type() - - if ptr, ok := fieldType.(*types.Pointer); ok { - fieldType = ptr.Elem() - } - - // Type.Underlying() returns itself for all types except types.Named, where it returns a struct type. - // It should be safe to always call. - if named, ok := fieldType.Underlying().(*types.Struct); ok { - f, err := findField(named, name, structTag) - if err != nil && !strings.HasPrefix(err.Error(), "no field named") { - return nil, err - } - if f != nil && foundField == nil { - foundField = f - } - } - } - - if !field.Exported() { - continue - } - - if equalFieldName(field.Name(), name) && foundField == nil { // aqui! - foundField = field - } - } - - if foundField == nil { - return nil, fmt.Errorf("no field named %s", name) - } - - return foundField, nil -} - -type BindError struct { - object *Object - field *Field - typ types.Type - methodErr error - varErr error -} - -func (b BindError) Error() string { - return fmt.Sprintf( - "Unable to bind %s.%s to %s\n %s\n %s", - b.object.GQLType, - b.field.GQLName, - b.typ.String(), - b.methodErr.Error(), - b.varErr.Error(), - ) -} - -type BindErrors []BindError - -func (b BindErrors) Error() string { - var errs []string - for _, err := range b { - errs = append(errs, err.Error()) - } - return strings.Join(errs, "\n\n") -} - -func bindObject(t types.Type, object *Object, structTag string) BindErrors { - var errs BindErrors - for i := range object.Fields { - field := &object.Fields[i] - - if field.ForceResolver { - continue - } - - // first try binding to a method - methodErr := bindMethod(t, field) - if methodErr == nil { - continue - } - - // otherwise try binding to a var - varErr := bindVar(t, field, structTag) - - if varErr != nil { - errs = append(errs, BindError{ - object: object, - typ: t, - field: field, - varErr: varErr, - methodErr: methodErr, - }) - } - } - return errs -} - -func bindMethod(t types.Type, field *Field) error { - namedType, ok := t.(*types.Named) - if !ok { - return fmt.Errorf("not a named type") - } - - goName := field.GQLName - if field.GoFieldName != "" { - goName = field.GoFieldName - } - method := findMethod(namedType, goName) - if method == nil { - return fmt.Errorf("no method named %s", field.GQLName) - } - sig := method.Type().(*types.Signature) - - if sig.Results().Len() == 1 { - field.NoErr = true - } else if sig.Results().Len() != 2 { - return fmt.Errorf("method has wrong number of args") - } - params := sig.Params() - // If the first argument is the context, remove it from the comparison and set - // the MethodHasContext flag so that the context will be passed to this model's method - if params.Len() > 0 && params.At(0).Type().String() == "context.Context" { - field.MethodHasContext = true - vars := make([]*types.Var, params.Len()-1) - for i := 1; i < params.Len(); i++ { - vars[i-1] = params.At(i) - } - params = types.NewTuple(vars...) - } - - newArgs, err := matchArgs(field, params) - if err != nil { - return err - } - - result := sig.Results().At(0) - if err := validateTypeBinding(field, result.Type()); err != nil { - return errors.Wrap(err, "method has wrong return type") - } - - // success, args and return type match. Bind to method - field.GoFieldType = GoFieldMethod - field.GoReceiverName = "obj" - field.GoFieldName = method.Name() - field.Args = newArgs - return nil -} - -func bindVar(t types.Type, field *Field, structTag string) error { - underlying, ok := t.Underlying().(*types.Struct) - if !ok { - return fmt.Errorf("not a struct") - } - - goName := field.GQLName - if field.GoFieldName != "" { - goName = field.GoFieldName - } - structField, err := findField(underlying, goName, structTag) - if err != nil { - return err - } - - if err := validateTypeBinding(field, structField.Type()); err != nil { - return errors.Wrap(err, "field has wrong type") - } - - // success, bind to var - field.GoFieldType = GoFieldVariable - field.GoReceiverName = "obj" - field.GoFieldName = structField.Name() - return nil -} - -func matchArgs(field *Field, params *types.Tuple) ([]FieldArgument, error) { - var newArgs []FieldArgument - -nextArg: - for j := 0; j < params.Len(); j++ { - param := params.At(j) - for _, oldArg := range field.Args { - if strings.EqualFold(oldArg.GQLName, param.Name()) { - if !field.ForceResolver { - oldArg.Type.Modifiers = modifiersFromGoType(param.Type()) - } - newArgs = append(newArgs, oldArg) - continue nextArg - } - } - - // no matching arg found, abort - return nil, fmt.Errorf("arg %s not found on method", param.Name()) - } - return newArgs, nil -} - -func validateTypeBinding(field *Field, goType types.Type) error { - gqlType := normalizeVendor(field.Type.FullSignature()) - goTypeStr := normalizeVendor(goType.String()) - - if equalTypes(goTypeStr, gqlType) { - field.Type.Modifiers = modifiersFromGoType(goType) - return nil - } - - // deal with type aliases - underlyingStr := normalizeVendor(goType.Underlying().String()) - if equalTypes(underlyingStr, gqlType) { - field.Type.Modifiers = modifiersFromGoType(goType) - pkg, typ := pkgAndType(goType.String()) - field.AliasedType = &Ref{GoType: typ, Package: pkg} - return nil - } - - return fmt.Errorf("%s is not compatible with %s", gqlType, goTypeStr) -} - -func modifiersFromGoType(t types.Type) []string { - var modifiers []string - for { - switch val := t.(type) { - case *types.Pointer: - modifiers = append(modifiers, modPtr) - t = val.Elem() - case *types.Array: - modifiers = append(modifiers, modList) - t = val.Elem() - case *types.Slice: - modifiers = append(modifiers, modList) - t = val.Elem() - default: - return modifiers - } - } -} - -var modsRegex = regexp.MustCompile(`^(\*|\[\])*`) - -func normalizeVendor(pkg string) string { - modifiers := modsRegex.FindAllString(pkg, 1)[0] - pkg = strings.TrimPrefix(pkg, modifiers) - parts := strings.Split(pkg, "/vendor/") - return modifiers + parts[len(parts)-1] -} - -func equalTypes(goType string, gqlType string) bool { - return goType == gqlType || "*"+goType == gqlType || goType == "*"+gqlType || strings.Replace(goType, "[]*", "[]", -1) == gqlType -} diff --git a/vendor/github.com/99designs/gqlgen/docs/content/_introduction.md b/vendor/github.com/99designs/gqlgen/docs/content/_introduction.md new file mode 120000 index 00000000..fe840054 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/docs/content/_introduction.md @@ -0,0 +1 @@ +../../README.md
\ No newline at end of file diff --git a/vendor/github.com/99designs/gqlgen/graphql/bool.go b/vendor/github.com/99designs/gqlgen/graphql/bool.go index 7053bbca..b175ca98 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/bool.go +++ b/vendor/github.com/99designs/gqlgen/graphql/bool.go @@ -19,7 +19,7 @@ func MarshalBoolean(b bool) Marshaler { func UnmarshalBoolean(v interface{}) (bool, error) { switch v := v.(type) { case string: - return "true" == strings.ToLower(v), nil + return strings.ToLower(v) == "true", nil case int: return v != 0, nil case bool: diff --git a/vendor/github.com/99designs/gqlgen/graphql/context.go b/vendor/github.com/99designs/gqlgen/graphql/context.go index f83fa36f..58d3c741 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/context.go +++ b/vendor/github.com/99designs/gqlgen/graphql/context.go @@ -12,6 +12,7 @@ import ( type Resolver func(ctx context.Context) (res interface{}, err error) type FieldMiddleware func(ctx context.Context, next Resolver) (res interface{}, err error) type RequestMiddleware func(ctx context.Context, next func(ctx context.Context) []byte) []byte +type ComplexityLimitFunc func(ctx context.Context) int type RequestContext struct { RawQuery string @@ -71,12 +72,10 @@ const ( ) func GetRequestContext(ctx context.Context) *RequestContext { - val := ctx.Value(request) - if val == nil { - return nil + if val, ok := ctx.Value(request).(*RequestContext); ok { + return val } - - return val.(*RequestContext) + return nil } func WithRequestContext(ctx context.Context, rc *RequestContext) context.Context { @@ -95,6 +94,8 @@ type ResolverContext struct { Index *int // The result object of resolver Result interface{} + // IsMethod indicates if the resolver is a method + IsMethod bool } func (r *ResolverContext) Path() []interface{} { @@ -117,8 +118,10 @@ func (r *ResolverContext) Path() []interface{} { } func GetResolverContext(ctx context.Context) *ResolverContext { - val, _ := ctx.Value(resolver).(*ResolverContext) - return val + if val, ok := ctx.Value(resolver).(*ResolverContext); ok { + return val + } + return nil } func WithResolverContext(ctx context.Context, rc *ResolverContext) context.Context { @@ -132,6 +135,24 @@ func CollectFieldsCtx(ctx context.Context, satisfies []string) []CollectedField return CollectFields(ctx, resctx.Field.Selections, satisfies) } +// CollectAllFields returns a slice of all GraphQL field names that were selected for the current resolver context. +// The slice will contain the unique set of all field names requested regardless of fragment type conditions. +func CollectAllFields(ctx context.Context) []string { + resctx := GetResolverContext(ctx) + collected := CollectFields(ctx, resctx.Field.Selections, nil) + uniq := make([]string, 0, len(collected)) +Next: + for _, f := range collected { + for _, name := range uniq { + if name == f.Name { + continue Next + } + } + uniq = append(uniq, f.Name) + } + return uniq +} + // Errorf sends an error string to the client, passing it through the formatter. func (c *RequestContext) Errorf(ctx context.Context, format string, args ...interface{}) { c.errorsMu.Lock() @@ -217,3 +238,37 @@ func (c *RequestContext) RegisterExtension(key string, value interface{}) error c.Extensions[key] = value return nil } + +// ChainFieldMiddleware add chain by FieldMiddleware +func ChainFieldMiddleware(handleFunc ...FieldMiddleware) FieldMiddleware { + n := len(handleFunc) + + if n > 1 { + lastI := n - 1 + return func(ctx context.Context, next Resolver) (interface{}, error) { + var ( + chainHandler Resolver + curI int + ) + chainHandler = func(currentCtx context.Context) (interface{}, error) { + if curI == lastI { + return next(currentCtx) + } + curI++ + res, err := handleFunc[curI](currentCtx, chainHandler) + curI-- + return res, err + + } + return handleFunc[0](ctx, chainHandler) + } + } + + if n == 1 { + return handleFunc[0] + } + + return func(ctx context.Context, next Resolver) (interface{}, error) { + return next(ctx) + } +} diff --git a/vendor/github.com/99designs/gqlgen/graphql/error.go b/vendor/github.com/99designs/gqlgen/graphql/error.go index 7f161a43..af8b4ce4 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/error.go +++ b/vendor/github.com/99designs/gqlgen/graphql/error.go @@ -14,7 +14,9 @@ type ExtendedError interface { func DefaultErrorPresenter(ctx context.Context, err error) *gqlerror.Error { if gqlerr, ok := err.(*gqlerror.Error); ok { - gqlerr.Path = GetResolverContext(ctx).Path() + if gqlerr.Path == nil { + gqlerr.Path = GetResolverContext(ctx).Path() + } return gqlerr } diff --git a/vendor/github.com/99designs/gqlgen/graphql/exec.go b/vendor/github.com/99designs/gqlgen/graphql/exec.go index 9beb3149..17c57bf6 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/exec.go +++ b/vendor/github.com/99designs/gqlgen/graphql/exec.go @@ -16,6 +16,9 @@ type ExecutableSchema interface { Subscription(ctx context.Context, op *ast.OperationDefinition) func() *Response } +// CollectFields returns the set of fields from an ast.SelectionSet where all collected fields satisfy at least one of the GraphQL types +// passed through satisfies. Providing an empty or nil slice for satisfies will return collect all fields regardless of fragment +// type conditions. func CollectFields(ctx context.Context, selSet ast.SelectionSet, satisfies []string) []CollectedField { return collectFields(GetRequestContext(ctx), selSet, satisfies, map[string]bool{}) } @@ -35,7 +38,10 @@ func collectFields(reqCtx *RequestContext, selSet ast.SelectionSet, satisfies [] f.Selections = append(f.Selections, sel.SelectionSet...) case *ast.InlineFragment: - if !shouldIncludeNode(sel.Directives, reqCtx.Variables) || !instanceOf(sel.TypeCondition, satisfies) { + if !shouldIncludeNode(sel.Directives, reqCtx.Variables) { + continue + } + if len(satisfies) > 0 && !instanceOf(sel.TypeCondition, satisfies) { continue } for _, childField := range collectFields(reqCtx, sel.SelectionSet, satisfies, visited) { @@ -59,7 +65,7 @@ func collectFields(reqCtx *RequestContext, selSet ast.SelectionSet, satisfies [] panic(fmt.Errorf("missing fragment %s", fragmentName)) } - if !instanceOf(fragment.TypeCondition, satisfies) { + if len(satisfies) > 0 && !instanceOf(fragment.TypeCondition, satisfies) { continue } diff --git a/vendor/github.com/99designs/gqlgen/graphql/fieldset.go b/vendor/github.com/99designs/gqlgen/graphql/fieldset.go new file mode 100644 index 00000000..351e266f --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/graphql/fieldset.go @@ -0,0 +1,63 @@ +package graphql + +import ( + "io" + "sync" +) + +type FieldSet struct { + fields []CollectedField + Values []Marshaler + delayed []delayedResult +} + +type delayedResult struct { + i int + f func() Marshaler +} + +func NewFieldSet(fields []CollectedField) *FieldSet { + return &FieldSet{ + fields: fields, + Values: make([]Marshaler, len(fields)), + } +} + +func (m *FieldSet) Concurrently(i int, f func() Marshaler) { + m.delayed = append(m.delayed, delayedResult{i: i, f: f}) +} + +func (m *FieldSet) Dispatch() { + if len(m.delayed) == 1 { + // only one concurrent task, no need to spawn a goroutine or deal create waitgroups + d := m.delayed[0] + m.Values[d.i] = d.f() + } else if len(m.delayed) > 1 { + // more than one concurrent task, use the main goroutine to do one, only spawn goroutines for the others + + var wg sync.WaitGroup + for _, d := range m.delayed[1:] { + wg.Add(1) + go func(d delayedResult) { + m.Values[d.i] = d.f() + wg.Done() + }(d) + } + + m.Values[m.delayed[0].i] = m.delayed[0].f() + wg.Wait() + } +} + +func (m *FieldSet) MarshalGQL(writer io.Writer) { + writer.Write(openBrace) + for i, field := range m.fields { + if i != 0 { + writer.Write(comma) + } + writeQuotedString(writer, field.Alias) + writer.Write(colon) + m.Values[i].MarshalGQL(writer) + } + writer.Write(closeBrace) +} diff --git a/vendor/github.com/99designs/gqlgen/graphql/id.go b/vendor/github.com/99designs/gqlgen/graphql/id.go index a5a7960f..4f532037 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/id.go +++ b/vendor/github.com/99designs/gqlgen/graphql/id.go @@ -34,3 +34,24 @@ func UnmarshalID(v interface{}) (string, error) { return "", fmt.Errorf("%T is not a string", v) } } + +func MarshalIntID(i int) Marshaler { + return WriterFunc(func(w io.Writer) { + writeQuotedString(w, strconv.Itoa(i)) + }) +} + +func UnmarshalIntID(v interface{}) (int, error) { + switch v := v.(type) { + case string: + return strconv.Atoi(v) + case int: + return v, nil + case int64: + return int(v), nil + case json.Number: + return strconv.Atoi(string(v)) + default: + return 0, fmt.Errorf("%T is not an int", v) + } +} diff --git a/vendor/github.com/99designs/gqlgen/graphql/int.go b/vendor/github.com/99designs/gqlgen/graphql/int.go index ff87574c..57d0d589 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/int.go +++ b/vendor/github.com/99designs/gqlgen/graphql/int.go @@ -27,3 +27,53 @@ func UnmarshalInt(v interface{}) (int, error) { return 0, fmt.Errorf("%T is not an int", v) } } + +func MarshalInt64(i int64) Marshaler { + return WriterFunc(func(w io.Writer) { + io.WriteString(w, strconv.FormatInt(i, 10)) + }) +} + +func UnmarshalInt64(v interface{}) (int64, error) { + switch v := v.(type) { + case string: + return strconv.ParseInt(v, 10, 64) + case int: + return int64(v), nil + case int64: + return v, nil + case json.Number: + return strconv.ParseInt(string(v), 10, 64) + default: + return 0, fmt.Errorf("%T is not an int", v) + } +} + +func MarshalInt32(i int32) Marshaler { + return WriterFunc(func(w io.Writer) { + io.WriteString(w, strconv.FormatInt(int64(i), 10)) + }) +} + +func UnmarshalInt32(v interface{}) (int32, error) { + switch v := v.(type) { + case string: + iv, err := strconv.ParseInt(v, 10, 32) + if err != nil { + return 0, err + } + return int32(iv), nil + case int: + return int32(v), nil + case int64: + return int32(v), nil + case json.Number: + iv, err := strconv.ParseInt(string(v), 10, 32) + if err != nil { + return 0, err + } + return int32(iv), nil + default: + return 0, fmt.Errorf("%T is not an int", v) + } +} diff --git a/vendor/github.com/99designs/gqlgen/graphql/introspection/type.go b/vendor/github.com/99designs/gqlgen/graphql/introspection/type.go index b963aa0e..f1228edf 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/introspection/type.go +++ b/vendor/github.com/99designs/gqlgen/graphql/introspection/type.go @@ -62,9 +62,9 @@ func (t *Type) Description() string { func (t *Type) Fields(includeDeprecated bool) []Field { if t.def == nil || (t.def.Kind != ast.Object && t.def.Kind != ast.Interface) { - return nil + return []Field{} } - var fields []Field + fields := []Field{} for _, f := range t.def.Fields { if strings.HasPrefix(f.Name, "__") { continue @@ -93,10 +93,10 @@ func (t *Type) Fields(includeDeprecated bool) []Field { func (t *Type) InputFields() []InputValue { if t.def == nil || t.def.Kind != ast.InputObject { - return nil + return []InputValue{} } - var res []InputValue + res := []InputValue{} for _, f := range t.def.Fields { res = append(res, InputValue{ Name: f.Name, @@ -118,10 +118,10 @@ func defaultValue(value *ast.Value) *string { func (t *Type) Interfaces() []Type { if t.def == nil || t.def.Kind != ast.Object { - return nil + return []Type{} } - var res []Type + res := []Type{} for _, intf := range t.def.Interfaces { res = append(res, *WrapTypeFromDef(t.schema, t.schema.Types[intf])) } @@ -131,10 +131,10 @@ func (t *Type) Interfaces() []Type { func (t *Type) PossibleTypes() []Type { if t.def == nil || (t.def.Kind != ast.Interface && t.def.Kind != ast.Union) { - return nil + return []Type{} } - var res []Type + res := []Type{} for _, pt := range t.schema.GetPossibleTypes(t.def) { res = append(res, *WrapTypeFromDef(t.schema, pt)) } @@ -143,10 +143,10 @@ func (t *Type) PossibleTypes() []Type { func (t *Type) EnumValues(includeDeprecated bool) []EnumValue { if t.def == nil || t.def.Kind != ast.Enum { - return nil + return []EnumValue{} } - var res []EnumValue + res := []EnumValue{} for _, val := range t.def.EnumValues { res = append(res, EnumValue{ Name: val.Name, diff --git a/vendor/github.com/99designs/gqlgen/graphql/jsonw.go b/vendor/github.com/99designs/gqlgen/graphql/jsonw.go index c112444a..db95d8e4 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/jsonw.go +++ b/vendor/github.com/99designs/gqlgen/graphql/jsonw.go @@ -2,7 +2,6 @@ package graphql import ( "io" - "strconv" ) var nullLit = []byte(`null`) @@ -27,42 +26,12 @@ type Unmarshaler interface { UnmarshalGQL(v interface{}) error } -type OrderedMap struct { - Keys []string - Values []Marshaler -} - type WriterFunc func(writer io.Writer) func (f WriterFunc) MarshalGQL(w io.Writer) { f(w) } -func NewOrderedMap(len int) *OrderedMap { - return &OrderedMap{ - Keys: make([]string, len), - Values: make([]Marshaler, len), - } -} - -func (m *OrderedMap) Add(key string, value Marshaler) { - m.Keys = append(m.Keys, key) - m.Values = append(m.Values, value) -} - -func (m *OrderedMap) MarshalGQL(writer io.Writer) { - writer.Write(openBrace) - for i, key := range m.Keys { - if i != 0 { - writer.Write(comma) - } - io.WriteString(writer, strconv.Quote(key)) - writer.Write(colon) - m.Values[i].MarshalGQL(writer) - } - writer.Write(closeBrace) -} - type Array []Marshaler func (a Array) MarshalGQL(writer io.Writer) { diff --git a/vendor/github.com/99designs/gqlgen/graphql/root.go b/vendor/github.com/99designs/gqlgen/graphql/root.go new file mode 100644 index 00000000..3405d180 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/graphql/root.go @@ -0,0 +1,7 @@ +package graphql + +type Query struct{} + +type Mutation struct{} + +type Subscription struct{} diff --git a/vendor/github.com/99designs/gqlgen/graphql/string.go b/vendor/github.com/99designs/gqlgen/graphql/string.go index d5fb3294..7c1b7d95 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/string.go +++ b/vendor/github.com/99designs/gqlgen/graphql/string.go @@ -10,37 +10,42 @@ const encodeHex = "0123456789ABCDEF" func MarshalString(s string) Marshaler { return WriterFunc(func(w io.Writer) { - start := 0 - io.WriteString(w, `"`) - - for i, c := range s { - if c < 0x20 || c == '\\' || c == '"' { - io.WriteString(w, s[start:i]) - - switch c { - case '\t': - io.WriteString(w, `\t`) - case '\r': - io.WriteString(w, `\r`) - case '\n': - io.WriteString(w, `\n`) - case '\\': - io.WriteString(w, `\\`) - case '"': - io.WriteString(w, `\"`) - default: - io.WriteString(w, `\u00`) - w.Write([]byte{encodeHex[c>>4], encodeHex[c&0xf]}) - } - - start = i + 1 + writeQuotedString(w, s) + }) +} + +func writeQuotedString(w io.Writer, s string) { + start := 0 + io.WriteString(w, `"`) + + for i, c := range s { + if c < 0x20 || c == '\\' || c == '"' { + io.WriteString(w, s[start:i]) + + switch c { + case '\t': + io.WriteString(w, `\t`) + case '\r': + io.WriteString(w, `\r`) + case '\n': + io.WriteString(w, `\n`) + case '\\': + io.WriteString(w, `\\`) + case '"': + io.WriteString(w, `\"`) + default: + io.WriteString(w, `\u00`) + w.Write([]byte{encodeHex[c>>4], encodeHex[c&0xf]}) } + + start = i + 1 } + } - io.WriteString(w, s[start:]) - io.WriteString(w, `"`) - }) + io.WriteString(w, s[start:]) + io.WriteString(w, `"`) } + func UnmarshalString(v interface{}) (string, error) { switch v := v.(type) { case string: diff --git a/vendor/github.com/99designs/gqlgen/graphql/version.go b/vendor/github.com/99designs/gqlgen/graphql/version.go index 490ff3ff..88014abf 100644 --- a/vendor/github.com/99designs/gqlgen/graphql/version.go +++ b/vendor/github.com/99designs/gqlgen/graphql/version.go @@ -1,3 +1,3 @@ package graphql -const Version = "v0.7.2" +const Version = "v0.8.3" diff --git a/vendor/github.com/99designs/gqlgen/handler/graphql.go b/vendor/github.com/99designs/gqlgen/handler/graphql.go index 7c5f70cf..92a0471c 100644 --- a/vendor/github.com/99designs/gqlgen/handler/graphql.go +++ b/vendor/github.com/99designs/gqlgen/handler/graphql.go @@ -34,6 +34,7 @@ type Config struct { requestHook graphql.RequestMiddleware tracer graphql.Tracer complexityLimit int + complexityLimitFunc graphql.ComplexityLimitFunc disableIntrospection bool connectionKeepAlivePingInterval time.Duration } @@ -60,11 +61,9 @@ func (c *Config) newRequestContext(es graphql.ExecutableSchema, doc *ast.QueryDo if hook := c.tracer; hook != nil { reqCtx.Tracer = hook - } else { - reqCtx.Tracer = &graphql.NopTracer{} } - if c.complexityLimit > 0 { + if c.complexityLimit > 0 || c.complexityLimitFunc != nil { reqCtx.ComplexityLimit = c.complexityLimit operationComplexity := complexity.Calculate(es, op, variables) reqCtx.OperationComplexity = operationComplexity @@ -112,6 +111,15 @@ func ComplexityLimit(limit int) Option { } } +// ComplexityLimitFunc allows you to define a function to dynamically set the maximum query complexity that is allowed +// to be executed. +// If a query is submitted that exceeds the limit, a 422 status code will be returned. +func ComplexityLimitFunc(complexityLimitFunc graphql.ComplexityLimitFunc) Option { + return func(cfg *Config) { + cfg.complexityLimitFunc = complexityLimitFunc + } +} + // ResolverMiddleware allows you to define a function that will be called around every resolver, // useful for logging. func ResolverMiddleware(middleware graphql.FieldMiddleware) Option { @@ -243,19 +251,23 @@ func CacheSize(size int) Option { } } -const DefaultCacheSize = 1000 - -// WebsocketKeepAliveDuration allows you to reconfigure the keepAlive behavior. -// By default, keep-alive is disabled. +// WebsocketKeepAliveDuration allows you to reconfigure the keepalive behavior. +// By default, keepalive is enabled with a DefaultConnectionKeepAlivePingInterval +// duration. Set handler.connectionKeepAlivePingInterval = 0 to disable keepalive +// altogether. func WebsocketKeepAliveDuration(duration time.Duration) Option { return func(cfg *Config) { cfg.connectionKeepAlivePingInterval = duration } } +const DefaultCacheSize = 1000 +const DefaultConnectionKeepAlivePingInterval = 25 * time.Second + func GraphQL(exec graphql.ExecutableSchema, options ...Option) http.HandlerFunc { cfg := &Config{ - cacheSize: DefaultCacheSize, + cacheSize: DefaultCacheSize, + connectionKeepAlivePingInterval: DefaultConnectionKeepAlivePingInterval, upgrader: websocket.Upgrader{ ReadBufferSize: 1024, WriteBufferSize: 1024, @@ -269,7 +281,7 @@ func GraphQL(exec graphql.ExecutableSchema, options ...Option) http.HandlerFunc var cache *lru.Cache if cfg.cacheSize > 0 { var err error - cache, err = lru.New(DefaultCacheSize) + cache, err = lru.New(cfg.cacheSize) if err != nil { // An error is only returned for non-positive cache size // and we already checked for that. @@ -305,10 +317,11 @@ func (gh *graphqlHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { } if strings.Contains(r.Header.Get("Upgrade"), "websocket") { - connectWs(gh.exec, w, r, gh.cfg) + connectWs(gh.exec, w, r, gh.cfg, gh.cache) return } + w.Header().Set("Content-Type", "application/json") var reqParams params switch r.Method { case http.MethodGet: @@ -330,7 +343,6 @@ func (gh *graphqlHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusMethodNotAllowed) return } - w.Header().Set("Content-Type", "application/json") ctx := r.Context() @@ -379,6 +391,10 @@ func (gh *graphqlHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) { } }() + if gh.cfg.complexityLimitFunc != nil { + reqCtx.ComplexityLimit = gh.cfg.complexityLimitFunc(ctx) + } + if reqCtx.ComplexityLimit > 0 && reqCtx.OperationComplexity > reqCtx.ComplexityLimit { sendErrorf(w, http.StatusUnprocessableEntity, "operation has complexity %d, which exceeds the limit of %d", reqCtx.OperationComplexity, reqCtx.ComplexityLimit) return diff --git a/vendor/github.com/99designs/gqlgen/handler/playground.go b/vendor/github.com/99designs/gqlgen/handler/playground.go index f1687def..0e1ca768 100644 --- a/vendor/github.com/99designs/gqlgen/handler/playground.go +++ b/vendor/github.com/99designs/gqlgen/handler/playground.go @@ -11,9 +11,12 @@ var page = template.Must(template.New("graphiql").Parse(`<!DOCTYPE html> <meta charset=utf-8/> <meta name="viewport" content="user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, minimal-ui"> <link rel="shortcut icon" href="https://graphcool-playground.netlify.com/favicon.png"> - <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/static/css/index.css"/> - <link rel="shortcut icon" href="//cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/favicon.png"/> - <script src="//cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/static/js/middleware.js"></script> + <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/static/css/index.css" + integrity="{{ .cssSRI }}" crossorigin="anonymous"/> + <link rel="shortcut icon" href="https://cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/favicon.png" + integrity="{{ .faviconSRI }}" crossorigin="anonymous"/> + <script src="https://cdn.jsdelivr.net/npm/graphql-playground-react@{{ .version }}/build/static/js/middleware.js" + integrity="{{ .jsSRI }}" crossorigin="anonymous"></script> <title>{{.title}}</title> </head> <body> @@ -42,10 +45,14 @@ var page = template.Must(template.New("graphiql").Parse(`<!DOCTYPE html> func Playground(title string, endpoint string) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { + w.Header().Add("Content-Type", "text/html") err := page.Execute(w, map[string]string{ - "title": title, - "endpoint": endpoint, - "version": "1.7.8", + "title": title, + "endpoint": endpoint, + "version": "1.7.20", + "cssSRI": "sha256-cS9Vc2OBt9eUf4sykRWukeFYaInL29+myBmFDSa7F/U=", + "faviconSRI": "sha256-GhTyE+McTU79R4+pRO6ih+4TfsTOrpPwD8ReKFzb3PM=", + "jsSRI": "sha256-4QG1Uza2GgGdlBL3RCBCGtGeZB6bDbsw8OltCMGeJsA=", }) if err != nil { panic(err) diff --git a/vendor/github.com/99designs/gqlgen/handler/websocket.go b/vendor/github.com/99designs/gqlgen/handler/websocket.go index 09800c17..58f38e5d 100644 --- a/vendor/github.com/99designs/gqlgen/handler/websocket.go +++ b/vendor/github.com/99designs/gqlgen/handler/websocket.go @@ -12,6 +12,7 @@ import ( "github.com/99designs/gqlgen/graphql" "github.com/gorilla/websocket" + "github.com/hashicorp/golang-lru" "github.com/vektah/gqlparser" "github.com/vektah/gqlparser/ast" "github.com/vektah/gqlparser/gqlerror" @@ -44,12 +45,13 @@ type wsConnection struct { active map[string]context.CancelFunc mu sync.Mutex cfg *Config + cache *lru.Cache keepAliveTicker *time.Ticker initPayload InitPayload } -func connectWs(exec graphql.ExecutableSchema, w http.ResponseWriter, r *http.Request, cfg *Config) { +func connectWs(exec graphql.ExecutableSchema, w http.ResponseWriter, r *http.Request, cfg *Config, cache *lru.Cache) { ws, err := cfg.upgrader.Upgrade(w, r, http.Header{ "Sec-Websocket-Protocol": []string{"graphql-ws"}, }) @@ -65,6 +67,7 @@ func connectWs(exec graphql.ExecutableSchema, w http.ResponseWriter, r *http.Req conn: ws, ctx: r.Context(), cfg: cfg, + cache: cache, } if !conn.init() { @@ -176,10 +179,27 @@ func (c *wsConnection) subscribe(message *operationMessage) bool { return false } - doc, qErr := gqlparser.LoadQuery(c.exec.Schema(), reqParams.Query) - if qErr != nil { - c.sendError(message.ID, qErr...) - return true + var ( + doc *ast.QueryDocument + cacheHit bool + ) + if c.cache != nil { + val, ok := c.cache.Get(reqParams.Query) + if ok { + doc = val.(*ast.QueryDocument) + cacheHit = true + } + } + if !cacheHit { + var qErr gqlerror.List + doc, qErr = gqlparser.LoadQuery(c.exec.Schema(), reqParams.Query) + if qErr != nil { + c.sendError(message.ID, qErr...) + return true + } + if c.cache != nil { + c.cache.Add(reqParams.Query, doc) + } } op := doc.Operations.ForName(reqParams.OperationName) diff --git a/vendor/github.com/99designs/gqlgen/internal/code/compare.go b/vendor/github.com/99designs/gqlgen/internal/code/compare.go new file mode 100644 index 00000000..dce9aea5 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/internal/code/compare.go @@ -0,0 +1,163 @@ +package code + +import ( + "fmt" + "go/types" +) + +// CompatibleTypes isnt a strict comparison, it allows for pointer differences +func CompatibleTypes(expected types.Type, actual types.Type) error { + //fmt.Println("Comparing ", expected.String(), actual.String()) + + // Special case to deal with pointer mismatches + { + expectedPtr, expectedIsPtr := expected.(*types.Pointer) + actualPtr, actualIsPtr := actual.(*types.Pointer) + + if expectedIsPtr && actualIsPtr { + return CompatibleTypes(expectedPtr.Elem(), actualPtr.Elem()) + } + if expectedIsPtr && !actualIsPtr { + return CompatibleTypes(expectedPtr.Elem(), actual) + } + if !expectedIsPtr && actualIsPtr { + return CompatibleTypes(expected, actualPtr.Elem()) + } + } + + switch expected := expected.(type) { + case *types.Slice: + if actual, ok := actual.(*types.Slice); ok { + return CompatibleTypes(expected.Elem(), actual.Elem()) + } + + case *types.Array: + if actual, ok := actual.(*types.Array); ok { + if expected.Len() != actual.Len() { + return fmt.Errorf("array length differs") + } + + return CompatibleTypes(expected.Elem(), actual.Elem()) + } + + case *types.Basic: + if actual, ok := actual.(*types.Basic); ok { + if actual.Kind() != expected.Kind() { + return fmt.Errorf("basic kind differs, %s != %s", expected.Name(), actual.Name()) + } + + return nil + } + + case *types.Struct: + if actual, ok := actual.(*types.Struct); ok { + if expected.NumFields() != actual.NumFields() { + return fmt.Errorf("number of struct fields differ") + } + + for i := 0; i < expected.NumFields(); i++ { + if expected.Field(i).Name() != actual.Field(i).Name() { + return fmt.Errorf("struct field %d name differs, %s != %s", i, expected.Field(i).Name(), actual.Field(i).Name()) + } + if err := CompatibleTypes(expected.Field(i).Type(), actual.Field(i).Type()); err != nil { + return err + } + } + return nil + } + + case *types.Tuple: + if actual, ok := actual.(*types.Tuple); ok { + if expected.Len() != actual.Len() { + return fmt.Errorf("tuple length differs, %d != %d", expected.Len(), actual.Len()) + } + + for i := 0; i < expected.Len(); i++ { + if err := CompatibleTypes(expected.At(i).Type(), actual.At(i).Type()); err != nil { + return err + } + } + + return nil + } + + case *types.Signature: + if actual, ok := actual.(*types.Signature); ok { + if err := CompatibleTypes(expected.Params(), actual.Params()); err != nil { + return err + } + if err := CompatibleTypes(expected.Results(), actual.Results()); err != nil { + return err + } + + return nil + } + case *types.Interface: + if actual, ok := actual.(*types.Interface); ok { + if expected.NumMethods() != actual.NumMethods() { + return fmt.Errorf("interface method count differs, %d != %d", expected.NumMethods(), actual.NumMethods()) + } + + for i := 0; i < expected.NumMethods(); i++ { + if expected.Method(i).Name() != actual.Method(i).Name() { + return fmt.Errorf("interface method %d name differs, %s != %s", i, expected.Method(i).Name(), actual.Method(i).Name()) + } + if err := CompatibleTypes(expected.Method(i).Type(), actual.Method(i).Type()); err != nil { + return err + } + } + + return nil + } + + case *types.Map: + if actual, ok := actual.(*types.Map); ok { + if err := CompatibleTypes(expected.Key(), actual.Key()); err != nil { + return err + } + + if err := CompatibleTypes(expected.Elem(), actual.Elem()); err != nil { + return err + } + + return nil + } + + case *types.Chan: + if actual, ok := actual.(*types.Chan); ok { + return CompatibleTypes(expected.Elem(), actual.Elem()) + } + + case *types.Named: + if actual, ok := actual.(*types.Named); ok { + if NormalizeVendor(expected.Obj().Pkg().Path()) != NormalizeVendor(actual.Obj().Pkg().Path()) { + return fmt.Errorf( + "package name of named type differs, %s != %s", + NormalizeVendor(expected.Obj().Pkg().Path()), + NormalizeVendor(actual.Obj().Pkg().Path()), + ) + } + + if expected.Obj().Name() != actual.Obj().Name() { + return fmt.Errorf( + "named type name differs, %s != %s", + NormalizeVendor(expected.Obj().Name()), + NormalizeVendor(actual.Obj().Name()), + ) + } + + return nil + } + + // Before models are generated all missing references will be Invalid Basic references. + // lets assume these are valid too. + if actual, ok := actual.(*types.Basic); ok && actual.Kind() == types.Invalid { + return nil + } + + default: + return fmt.Errorf("missing support for %T", expected) + } + + return fmt.Errorf("type mismatch %T != %T", expected, actual) +} diff --git a/vendor/github.com/99designs/gqlgen/internal/code/imports.go b/vendor/github.com/99designs/gqlgen/internal/code/imports.go new file mode 100644 index 00000000..2384e87d --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/internal/code/imports.go @@ -0,0 +1,60 @@ +package code + +import ( + "errors" + "path/filepath" + "sync" + + "golang.org/x/tools/go/packages" +) + +var pathForDirCache = sync.Map{} + +// ImportPathFromDir takes an *absolute* path and returns a golang import path for the package, and returns an error if it isn't on the gopath +func ImportPathForDir(dir string) string { + if v, ok := pathForDirCache.Load(dir); ok { + return v.(string) + } + + p, _ := packages.Load(&packages.Config{ + Dir: dir, + }, ".") + + // If the dir dosent exist yet, keep walking up the directory tree trying to find a match + if len(p) != 1 { + parent, err := filepath.Abs(filepath.Join(dir, "..")) + if err != nil { + panic(err) + } + // Walked all the way to the root and didnt find anything :'( + if parent == dir { + return "" + } + return ImportPathForDir(parent) + "/" + filepath.Base(dir) + } + + pathForDirCache.Store(dir, p[0].PkgPath) + + return p[0].PkgPath +} + +var nameForPackageCache = sync.Map{} + +func NameForPackage(importPath string) string { + if importPath == "" { + panic(errors.New("import path can not be empty")) + } + if v, ok := nameForPackageCache.Load(importPath); ok { + return v.(string) + } + importPath = QualifyPackagePath(importPath) + p, _ := packages.Load(nil, importPath) + + if len(p) != 1 || p[0].Name == "" { + return SanitizePackageName(filepath.Base(importPath)) + } + + nameForPackageCache.Store(importPath, p[0].Name) + + return p[0].Name +} diff --git a/vendor/github.com/99designs/gqlgen/internal/code/util.go b/vendor/github.com/99designs/gqlgen/internal/code/util.go new file mode 100644 index 00000000..2be83a23 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/internal/code/util.go @@ -0,0 +1,56 @@ +package code + +import ( + "go/build" + "os" + "path/filepath" + "regexp" + "strings" +) + +// take a string in the form github.com/package/blah.Type and split it into package and type +func PkgAndType(name string) (string, string) { + parts := strings.Split(name, ".") + if len(parts) == 1 { + return "", name + } + + return strings.Join(parts[:len(parts)-1], "."), parts[len(parts)-1] +} + +var modsRegex = regexp.MustCompile(`^(\*|\[\])*`) + +// NormalizeVendor takes a qualified package path and turns it into normal one. +// eg . +// github.com/foo/vendor/github.com/99designs/gqlgen/graphql becomes +// github.com/99designs/gqlgen/graphql +func NormalizeVendor(pkg string) string { + modifiers := modsRegex.FindAllString(pkg, 1)[0] + pkg = strings.TrimPrefix(pkg, modifiers) + parts := strings.Split(pkg, "/vendor/") + return modifiers + parts[len(parts)-1] +} + +// QualifyPackagePath takes an import and fully qualifies it with a vendor dir, if one is required. +// eg . +// github.com/99designs/gqlgen/graphql becomes +// github.com/foo/vendor/github.com/99designs/gqlgen/graphql +// +// x/tools/packages only supports 'qualified package paths' so this will need to be done prior to calling it +// See https://github.com/golang/go/issues/30289 +func QualifyPackagePath(importPath string) string { + wd, _ := os.Getwd() + + pkg, err := build.Import(importPath, wd, 0) + if err != nil { + return importPath + } + + return pkg.ImportPath +} + +var invalidPackageNameChar = regexp.MustCompile(`[^\w]`) + +func SanitizePackageName(pkg string) string { + return invalidPackageNameChar.ReplaceAllLiteralString(filepath.Base(pkg), "_") +} diff --git a/vendor/github.com/99designs/gqlgen/internal/gopath/gopath.go b/vendor/github.com/99designs/gqlgen/internal/gopath/gopath.go deleted file mode 100644 index c9b66167..00000000 --- a/vendor/github.com/99designs/gqlgen/internal/gopath/gopath.go +++ /dev/null @@ -1,37 +0,0 @@ -package gopath - -import ( - "fmt" - "go/build" - "path/filepath" - "strings" -) - -var NotFound = fmt.Errorf("not on GOPATH") - -// Contains returns true if the given directory is in the GOPATH -func Contains(dir string) bool { - _, err := Dir2Import(dir) - return err == nil -} - -// Dir2Import takes an *absolute* path and returns a golang import path for the package, and returns an error if it isn't on the gopath -func Dir2Import(dir string) (string, error) { - dir = filepath.ToSlash(dir) - for _, gopath := range filepath.SplitList(build.Default.GOPATH) { - gopath = filepath.ToSlash(filepath.Join(gopath, "src")) - if len(gopath) < len(dir) && strings.EqualFold(gopath, dir[0:len(gopath)]) { - return dir[len(gopath)+1:], nil - } - } - return "", NotFound -} - -// MustDir2Import takes an *absolute* path and returns a golang import path for the package, and panics if it isn't on the gopath -func MustDir2Import(dir string) string { - pkg, err := Dir2Import(dir) - if err != nil { - panic(err) - } - return pkg -} diff --git a/vendor/github.com/99designs/gqlgen/internal/imports/prune.go b/vendor/github.com/99designs/gqlgen/internal/imports/prune.go index d2469e83..d678870e 100644 --- a/vendor/github.com/99designs/gqlgen/internal/imports/prune.go +++ b/vendor/github.com/99designs/gqlgen/internal/imports/prune.go @@ -5,16 +5,15 @@ package imports import ( "bytes" "go/ast" - "go/build" "go/parser" "go/printer" "go/token" - "path/filepath" "strings" - "golang.org/x/tools/imports" + "github.com/99designs/gqlgen/internal/code" "golang.org/x/tools/go/ast/astutil" + "golang.org/x/tools/imports" ) type visitFn func(node ast.Node) @@ -54,12 +53,6 @@ func getUnusedImports(file ast.Node, filename string) (map[string]string, error) imported := map[string]*ast.ImportSpec{} used := map[string]bool{} - abs, err := filepath.Abs(filename) - if err != nil { - return nil, err - } - srcDir := filepath.Dir(abs) - ast.Walk(visitFn(func(node ast.Node) { if node == nil { return @@ -75,7 +68,7 @@ func getUnusedImports(file ast.Node, filename string) (map[string]string, error) break } - local := importPathToName(ipath, srcDir) + local := code.NameForPackage(ipath) imported[local] = v case *ast.SelectorExpr: @@ -108,12 +101,3 @@ func getUnusedImports(file ast.Node, filename string) (map[string]string, error) return unusedImport, nil } - -func importPathToName(importPath, srcDir string) (packageName string) { - pkg, err := build.Default.Import(importPath, srcDir, 0) - if err != nil { - return "" - } - - return pkg.Name -} diff --git a/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.go b/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.go new file mode 100644 index 00000000..508cc14d --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.go @@ -0,0 +1,207 @@ +package modelgen + +import ( + "go/types" + "sort" + + "github.com/99designs/gqlgen/codegen/config" + "github.com/99designs/gqlgen/codegen/templates" + "github.com/99designs/gqlgen/internal/code" + "github.com/99designs/gqlgen/plugin" + "github.com/vektah/gqlparser/ast" +) + +type ModelBuild struct { + PackageName string + Interfaces []*Interface + Models []*Object + Enums []*Enum + Scalars []string +} + +type Interface struct { + Description string + Name string +} + +type Object struct { + Description string + Name string + Fields []*Field + Implements []string +} + +type Field struct { + Description string + Name string + Type types.Type + Tag string +} + +type Enum struct { + Description string + Name string + Values []*EnumValue +} + +type EnumValue struct { + Description string + Name string +} + +func New() plugin.Plugin { + return &Plugin{} +} + +type Plugin struct{} + +var _ plugin.ConfigMutator = &Plugin{} + +func (m *Plugin) Name() string { + return "modelgen" +} + +func (m *Plugin) MutateConfig(cfg *config.Config) error { + if err := cfg.Check(); err != nil { + return err + } + + schema, _, err := cfg.LoadSchema() + if err != nil { + return err + } + + cfg.InjectBuiltins(schema) + + binder, err := cfg.NewBinder(schema) + if err != nil { + return err + } + + b := &ModelBuild{ + PackageName: cfg.Model.Package, + } + + for _, schemaType := range schema.Types { + if cfg.Models.UserDefined(schemaType.Name) { + continue + } + + switch schemaType.Kind { + case ast.Interface, ast.Union: + it := &Interface{ + Description: schemaType.Description, + Name: schemaType.Name, + } + + b.Interfaces = append(b.Interfaces, it) + case ast.Object, ast.InputObject: + if schemaType == schema.Query || schemaType == schema.Mutation || schemaType == schema.Subscription { + continue + } + it := &Object{ + Description: schemaType.Description, + Name: schemaType.Name, + } + + for _, implementor := range schema.GetImplements(schemaType) { + it.Implements = append(it.Implements, implementor.Name) + } + + for _, field := range schemaType.Fields { + var typ types.Type + + if cfg.Models.UserDefined(field.Type.Name()) { + pkg, typeName := code.PkgAndType(cfg.Models[field.Type.Name()].Model[0]) + typ, err = binder.FindType(pkg, typeName) + if err != nil { + return err + } + } else { + fieldDef := schema.Types[field.Type.Name()] + switch fieldDef.Kind { + case ast.Scalar: + // no user defined model, referencing a default scalar + typ = types.NewNamed( + types.NewTypeName(0, cfg.Model.Pkg(), "string", nil), + nil, + nil, + ) + case ast.Interface, ast.Union: + // no user defined model, referencing a generated interface type + typ = types.NewNamed( + types.NewTypeName(0, cfg.Model.Pkg(), templates.ToGo(field.Type.Name()), nil), + types.NewInterfaceType([]*types.Func{}, []types.Type{}), + nil, + ) + default: + // no user defined model, must reference another generated model + typ = types.NewNamed( + types.NewTypeName(0, cfg.Model.Pkg(), templates.ToGo(field.Type.Name()), nil), + nil, + nil, + ) + } + } + + name := field.Name + if nameOveride := cfg.Models[schemaType.Name].Fields[field.Name].FieldName; nameOveride != "" { + name = nameOveride + } + + it.Fields = append(it.Fields, &Field{ + Name: name, + Type: binder.CopyModifiersFromAst(field.Type, typ), + Description: field.Description, + Tag: `json:"` + field.Name + `"`, + }) + } + + b.Models = append(b.Models, it) + case ast.Enum: + it := &Enum{ + Name: schemaType.Name, + Description: schemaType.Description, + } + + for _, v := range schemaType.EnumValues { + it.Values = append(it.Values, &EnumValue{ + Name: v.Name, + Description: v.Description, + }) + } + + b.Enums = append(b.Enums, it) + case ast.Scalar: + b.Scalars = append(b.Scalars, schemaType.Name) + } + } + + sort.Slice(b.Enums, func(i, j int) bool { return b.Enums[i].Name < b.Enums[j].Name }) + sort.Slice(b.Models, func(i, j int) bool { return b.Models[i].Name < b.Models[j].Name }) + sort.Slice(b.Interfaces, func(i, j int) bool { return b.Interfaces[i].Name < b.Interfaces[j].Name }) + + for _, it := range b.Enums { + cfg.Models.Add(it.Name, cfg.Model.ImportPath()+"."+templates.ToGo(it.Name)) + } + for _, it := range b.Models { + cfg.Models.Add(it.Name, cfg.Model.ImportPath()+"."+templates.ToGo(it.Name)) + } + for _, it := range b.Interfaces { + cfg.Models.Add(it.Name, cfg.Model.ImportPath()+"."+templates.ToGo(it.Name)) + } + for _, it := range b.Scalars { + cfg.Models.Add(it, "github.com/99designs/gqlgen/graphql.String") + } + + if len(b.Models) == 0 && len(b.Enums) == 0 { + return nil + } + + return templates.Render(templates.Options{ + PackageName: cfg.Model.Package, + Filename: cfg.Model.Filename, + Data: b, + GeneratedHeader: true, + }) +} diff --git a/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.gotpl b/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.gotpl new file mode 100644 index 00000000..d06cf050 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/modelgen/models.gotpl @@ -0,0 +1,85 @@ +{{ reserveImport "context" }} +{{ reserveImport "fmt" }} +{{ reserveImport "io" }} +{{ reserveImport "strconv" }} +{{ reserveImport "time" }} +{{ reserveImport "sync" }} +{{ reserveImport "errors" }} +{{ reserveImport "bytes" }} + +{{ reserveImport "github.com/vektah/gqlparser" }} +{{ reserveImport "github.com/vektah/gqlparser/ast" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} + +{{- range $model := .Interfaces }} + {{ with .Description }} {{.|prefixLines "// "}} {{ end }} + type {{.Name|go }} interface { + Is{{.Name|go }}() + } +{{- end }} + +{{ range $model := .Models }} + {{with .Description }} {{.|prefixLines "// "}} {{end}} + type {{ .Name|go }} struct { + {{- range $field := .Fields }} + {{- with .Description }} + {{.|prefixLines "// "}} + {{- end}} + {{ $field.Name|go }} {{$field.Type | ref}} `{{$field.Tag}}` + {{- end }} + } + + {{- range $iface := .Implements }} + func ({{ $model.Name|go }}) Is{{ $iface }}() {} + {{- end }} +{{- end}} + +{{ range $enum := .Enums }} + {{ with .Description|go }} {{.|prefixLines "// "}} {{end}} + type {{.Name|go }} string + const ( + {{- range $value := .Values}} + {{- with .Description}} + {{.|prefixLines "// "}} + {{- end}} + {{ $enum.Name|go }}{{ .Name|go }} {{$enum.Name|go }} = {{.Name|quote}} + {{- end }} + ) + + var All{{.Name|go }} = []{{ .Name|go }}{ + {{- range $value := .Values}} + {{$enum.Name|go }}{{ .Name|go }}, + {{- end }} + } + + func (e {{.Name|go }}) IsValid() bool { + switch e { + case {{ range $index, $element := .Values}}{{if $index}},{{end}}{{ $enum.Name|go }}{{ $element.Name|go }}{{end}}: + return true + } + return false + } + + func (e {{.Name|go }}) String() string { + return string(e) + } + + func (e *{{.Name|go }}) UnmarshalGQL(v interface{}) error { + str, ok := v.(string) + if !ok { + return fmt.Errorf("enums must be strings") + } + + *e = {{ .Name|go }}(str) + if !e.IsValid() { + return fmt.Errorf("%s is not a valid {{ .Name }}", str) + } + return nil + } + + func (e {{.Name|go }}) MarshalGQL(w io.Writer) { + fmt.Fprint(w, strconv.Quote(e.String())) + } + +{{- end }} diff --git a/vendor/github.com/99designs/gqlgen/plugin/plugin.go b/vendor/github.com/99designs/gqlgen/plugin/plugin.go new file mode 100644 index 00000000..a84bfd32 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/plugin.go @@ -0,0 +1,20 @@ +// plugin package interfaces are EXPERIMENTAL. + +package plugin + +import ( + "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/codegen/config" +) + +type Plugin interface { + Name() string +} + +type ConfigMutator interface { + MutateConfig(cfg *config.Config) error +} + +type CodeGenerator interface { + GenerateCode(cfg *codegen.Data) error +} diff --git a/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.go b/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.go new file mode 100644 index 00000000..00a6d5c9 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.go @@ -0,0 +1,53 @@ +package resolvergen + +import ( + "log" + "os" + + "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/codegen/templates" + "github.com/99designs/gqlgen/plugin" + "github.com/pkg/errors" +) + +func New() plugin.Plugin { + return &Plugin{} +} + +type Plugin struct{} + +var _ plugin.CodeGenerator = &Plugin{} + +func (m *Plugin) Name() string { + return "resovlergen" +} +func (m *Plugin) GenerateCode(data *codegen.Data) error { + if !data.Config.Resolver.IsDefined() { + return nil + } + + resolverBuild := &ResolverBuild{ + Data: data, + PackageName: data.Config.Resolver.Package, + ResolverType: data.Config.Resolver.Type, + } + filename := data.Config.Resolver.Filename + + if _, err := os.Stat(filename); os.IsNotExist(errors.Cause(err)) { + return templates.Render(templates.Options{ + PackageName: data.Config.Resolver.Package, + Filename: data.Config.Resolver.Filename, + Data: resolverBuild, + }) + } + + log.Printf("Skipped resolver: %s already exists\n", filename) + return nil +} + +type ResolverBuild struct { + *codegen.Data + + PackageName string + ResolverType string +} diff --git a/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.gotpl b/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.gotpl new file mode 100644 index 00000000..7d95e690 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/resolvergen/resolver.gotpl @@ -0,0 +1,40 @@ +// THIS CODE IS A STARTING POINT ONLY. IT WILL NOT BE UPDATED WITH SCHEMA CHANGES. + +{{ reserveImport "context" }} +{{ reserveImport "fmt" }} +{{ reserveImport "io" }} +{{ reserveImport "strconv" }} +{{ reserveImport "time" }} +{{ reserveImport "sync" }} +{{ reserveImport "errors" }} +{{ reserveImport "bytes" }} + +{{ reserveImport "github.com/99designs/gqlgen/handler" }} +{{ reserveImport "github.com/vektah/gqlparser" }} +{{ reserveImport "github.com/vektah/gqlparser/ast" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql" }} +{{ reserveImport "github.com/99designs/gqlgen/graphql/introspection" }} + +type {{.ResolverType}} struct {} + +{{ range $object := .Objects -}} + {{- if $object.HasResolvers -}} + func (r *{{$.ResolverType}}) {{$object.Name}}() {{ $object.ResolverInterface | ref }} { + return &{{lcFirst $object.Name}}Resolver{r} + } + {{ end -}} +{{ end }} + +{{ range $object := .Objects -}} + {{- if $object.HasResolvers -}} + type {{lcFirst $object.Name}}Resolver struct { *Resolver } + + {{ range $field := $object.Fields -}} + {{- if $field.IsResolver -}} + func (r *{{lcFirst $object.Name}}Resolver) {{$field.GoFieldName}}{{ $field.ShortResolverDeclaration }} { + panic("not implemented") + } + {{ end -}} + {{ end -}} + {{ end -}} +{{ end }} diff --git a/vendor/github.com/99designs/gqlgen/plugin/servergen/server.go b/vendor/github.com/99designs/gqlgen/plugin/servergen/server.go new file mode 100644 index 00000000..22289c02 --- /dev/null +++ b/vendor/github.com/99designs/gqlgen/plugin/servergen/server.go @@ -0,0 +1,49 @@ +package servergen + +import ( + "log" + "os" + + "github.com/99designs/gqlgen/codegen" + "github.com/99designs/gqlgen/codegen/templates" + "github.com/99designs/gqlgen/plugin" + "github.com/pkg/errors" +) + +func New(filename string) plugin.Plugin { + return &Plugin{filename} +} + +type Plugin struct { + filename string +} + +var _ plugin.CodeGenerator = &Plugin{} + +func (m *Plugin) Name() string { + return "servergen" +} +func (m *Plugin) GenerateCode(data *codegen.Data) error { + serverBuild := &ServerBuild{ + ExecPackageName: data.Config.Exec.ImportPath(), + ResolverPackageName: data.Config.Resolver.ImportPath(), + } + + if _, err := os.Stat(m.filename); os.IsNotExist(errors.Cause(err)) { + return templates.Render(templates.Options{ + PackageName: "main", + Filename: m.filename, + Data: serverBuild, + }) + } + + log.Printf("Skipped server: %s already exists\n", m.filename) + return nil +} + +type ServerBuild struct { + codegen.Data + + ExecPackageName string + ResolverPackageName string +} diff --git a/vendor/github.com/99designs/gqlgen/codegen/templates/server.gotpl b/vendor/github.com/99designs/gqlgen/plugin/servergen/server.gotpl index 38dc0d18..fca71c53 100644 --- a/vendor/github.com/99designs/gqlgen/codegen/templates/server.gotpl +++ b/vendor/github.com/99designs/gqlgen/plugin/servergen/server.gotpl @@ -1,14 +1,8 @@ -package main - -import ( - %%%IMPORTS%%% - - {{ reserveImport "context" }} - {{ reserveImport "log" }} - {{ reserveImport "net/http" }} - {{ reserveImport "os" }} - {{ reserveImport "github.com/99designs/gqlgen/handler" }} -) +{{ reserveImport "context" }} +{{ reserveImport "log" }} +{{ reserveImport "net/http" }} +{{ reserveImport "os" }} +{{ reserveImport "github.com/99designs/gqlgen/handler" }} const defaultPort = "8080" diff --git a/vendor/golang.org/x/tools/go/buildutil/allpackages.go b/vendor/golang.org/x/tools/go/buildutil/allpackages.go deleted file mode 100644 index c0cb03e7..00000000 --- a/vendor/golang.org/x/tools/go/buildutil/allpackages.go +++ /dev/null @@ -1,198 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package buildutil provides utilities related to the go/build -// package in the standard library. -// -// All I/O is done via the build.Context file system interface, which must -// be concurrency-safe. -package buildutil // import "golang.org/x/tools/go/buildutil" - -import ( - "go/build" - "os" - "path/filepath" - "sort" - "strings" - "sync" -) - -// AllPackages returns the package path of each Go package in any source -// directory of the specified build context (e.g. $GOROOT or an element -// of $GOPATH). Errors are ignored. The results are sorted. -// All package paths are canonical, and thus may contain "/vendor/". -// -// The result may include import paths for directories that contain no -// *.go files, such as "archive" (in $GOROOT/src). -// -// All I/O is done via the build.Context file system interface, -// which must be concurrency-safe. -// -func AllPackages(ctxt *build.Context) []string { - var list []string - ForEachPackage(ctxt, func(pkg string, _ error) { - list = append(list, pkg) - }) - sort.Strings(list) - return list -} - -// ForEachPackage calls the found function with the package path of -// each Go package it finds in any source directory of the specified -// build context (e.g. $GOROOT or an element of $GOPATH). -// All package paths are canonical, and thus may contain "/vendor/". -// -// If the package directory exists but could not be read, the second -// argument to the found function provides the error. -// -// All I/O is done via the build.Context file system interface, -// which must be concurrency-safe. -// -func ForEachPackage(ctxt *build.Context, found func(importPath string, err error)) { - ch := make(chan item) - - var wg sync.WaitGroup - for _, root := range ctxt.SrcDirs() { - root := root - wg.Add(1) - go func() { - allPackages(ctxt, root, ch) - wg.Done() - }() - } - go func() { - wg.Wait() - close(ch) - }() - - // All calls to found occur in the caller's goroutine. - for i := range ch { - found(i.importPath, i.err) - } -} - -type item struct { - importPath string - err error // (optional) -} - -// We use a process-wide counting semaphore to limit -// the number of parallel calls to ReadDir. -var ioLimit = make(chan bool, 20) - -func allPackages(ctxt *build.Context, root string, ch chan<- item) { - root = filepath.Clean(root) + string(os.PathSeparator) - - var wg sync.WaitGroup - - var walkDir func(dir string) - walkDir = func(dir string) { - // Avoid .foo, _foo, and testdata directory trees. - base := filepath.Base(dir) - if base == "" || base[0] == '.' || base[0] == '_' || base == "testdata" { - return - } - - pkg := filepath.ToSlash(strings.TrimPrefix(dir, root)) - - // Prune search if we encounter any of these import paths. - switch pkg { - case "builtin": - return - } - - ioLimit <- true - files, err := ReadDir(ctxt, dir) - <-ioLimit - if pkg != "" || err != nil { - ch <- item{pkg, err} - } - for _, fi := range files { - fi := fi - if fi.IsDir() { - wg.Add(1) - go func() { - walkDir(filepath.Join(dir, fi.Name())) - wg.Done() - }() - } - } - } - - walkDir(root) - wg.Wait() -} - -// ExpandPatterns returns the set of packages matched by patterns, -// which may have the following forms: -// -// golang.org/x/tools/cmd/guru # a single package -// golang.org/x/tools/... # all packages beneath dir -// ... # the entire workspace. -// -// Order is significant: a pattern preceded by '-' removes matching -// packages from the set. For example, these patterns match all encoding -// packages except encoding/xml: -// -// encoding/... -encoding/xml -// -// A trailing slash in a pattern is ignored. (Path components of Go -// package names are separated by slash, not the platform's path separator.) -// -func ExpandPatterns(ctxt *build.Context, patterns []string) map[string]bool { - // TODO(adonovan): support other features of 'go list': - // - "std"/"cmd"/"all" meta-packages - // - "..." not at the end of a pattern - // - relative patterns using "./" or "../" prefix - - pkgs := make(map[string]bool) - doPkg := func(pkg string, neg bool) { - if neg { - delete(pkgs, pkg) - } else { - pkgs[pkg] = true - } - } - - // Scan entire workspace if wildcards are present. - // TODO(adonovan): opt: scan only the necessary subtrees of the workspace. - var all []string - for _, arg := range patterns { - if strings.HasSuffix(arg, "...") { - all = AllPackages(ctxt) - break - } - } - - for _, arg := range patterns { - if arg == "" { - continue - } - - neg := arg[0] == '-' - if neg { - arg = arg[1:] - } - - if arg == "..." { - // ... matches all packages - for _, pkg := range all { - doPkg(pkg, neg) - } - } else if dir := strings.TrimSuffix(arg, "/..."); dir != arg { - // dir/... matches all packages beneath dir - for _, pkg := range all { - if strings.HasPrefix(pkg, dir) && - (len(pkg) == len(dir) || pkg[len(dir)] == '/') { - doPkg(pkg, neg) - } - } - } else { - // single package - doPkg(strings.TrimSuffix(arg, "/"), neg) - } - } - - return pkgs -} diff --git a/vendor/golang.org/x/tools/go/buildutil/fakecontext.go b/vendor/golang.org/x/tools/go/buildutil/fakecontext.go deleted file mode 100644 index 8b7f0667..00000000 --- a/vendor/golang.org/x/tools/go/buildutil/fakecontext.go +++ /dev/null @@ -1,109 +0,0 @@ -package buildutil - -import ( - "fmt" - "go/build" - "io" - "io/ioutil" - "os" - "path" - "path/filepath" - "sort" - "strings" - "time" -) - -// FakeContext returns a build.Context for the fake file tree specified -// by pkgs, which maps package import paths to a mapping from file base -// names to contents. -// -// The fake Context has a GOROOT of "/go" and no GOPATH, and overrides -// the necessary file access methods to read from memory instead of the -// real file system. -// -// Unlike a real file tree, the fake one has only two levels---packages -// and files---so ReadDir("/go/src/") returns all packages under -// /go/src/ including, for instance, "math" and "math/big". -// ReadDir("/go/src/math/big") would return all the files in the -// "math/big" package. -// -func FakeContext(pkgs map[string]map[string]string) *build.Context { - clean := func(filename string) string { - f := path.Clean(filepath.ToSlash(filename)) - // Removing "/go/src" while respecting segment - // boundaries has this unfortunate corner case: - if f == "/go/src" { - return "" - } - return strings.TrimPrefix(f, "/go/src/") - } - - ctxt := build.Default // copy - ctxt.GOROOT = "/go" - ctxt.GOPATH = "" - ctxt.Compiler = "gc" - ctxt.IsDir = func(dir string) bool { - dir = clean(dir) - if dir == "" { - return true // needed by (*build.Context).SrcDirs - } - return pkgs[dir] != nil - } - ctxt.ReadDir = func(dir string) ([]os.FileInfo, error) { - dir = clean(dir) - var fis []os.FileInfo - if dir == "" { - // enumerate packages - for importPath := range pkgs { - fis = append(fis, fakeDirInfo(importPath)) - } - } else { - // enumerate files of package - for basename := range pkgs[dir] { - fis = append(fis, fakeFileInfo(basename)) - } - } - sort.Sort(byName(fis)) - return fis, nil - } - ctxt.OpenFile = func(filename string) (io.ReadCloser, error) { - filename = clean(filename) - dir, base := path.Split(filename) - content, ok := pkgs[path.Clean(dir)][base] - if !ok { - return nil, fmt.Errorf("file not found: %s", filename) - } - return ioutil.NopCloser(strings.NewReader(content)), nil - } - ctxt.IsAbsPath = func(path string) bool { - path = filepath.ToSlash(path) - // Don't rely on the default (filepath.Path) since on - // Windows, it reports virtual paths as non-absolute. - return strings.HasPrefix(path, "/") - } - return &ctxt -} - -type byName []os.FileInfo - -func (s byName) Len() int { return len(s) } -func (s byName) Swap(i, j int) { s[i], s[j] = s[j], s[i] } -func (s byName) Less(i, j int) bool { return s[i].Name() < s[j].Name() } - -type fakeFileInfo string - -func (fi fakeFileInfo) Name() string { return string(fi) } -func (fakeFileInfo) Sys() interface{} { return nil } -func (fakeFileInfo) ModTime() time.Time { return time.Time{} } -func (fakeFileInfo) IsDir() bool { return false } -func (fakeFileInfo) Size() int64 { return 0 } -func (fakeFileInfo) Mode() os.FileMode { return 0644 } - -type fakeDirInfo string - -func (fd fakeDirInfo) Name() string { return string(fd) } -func (fakeDirInfo) Sys() interface{} { return nil } -func (fakeDirInfo) ModTime() time.Time { return time.Time{} } -func (fakeDirInfo) IsDir() bool { return true } -func (fakeDirInfo) Size() int64 { return 0 } -func (fakeDirInfo) Mode() os.FileMode { return 0755 } diff --git a/vendor/golang.org/x/tools/go/buildutil/overlay.go b/vendor/golang.org/x/tools/go/buildutil/overlay.go deleted file mode 100644 index 3f71c4fe..00000000 --- a/vendor/golang.org/x/tools/go/buildutil/overlay.go +++ /dev/null @@ -1,103 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package buildutil - -import ( - "bufio" - "bytes" - "fmt" - "go/build" - "io" - "io/ioutil" - "path/filepath" - "strconv" - "strings" -) - -// OverlayContext overlays a build.Context with additional files from -// a map. Files in the map take precedence over other files. -// -// In addition to plain string comparison, two file names are -// considered equal if their base names match and their directory -// components point at the same directory on the file system. That is, -// symbolic links are followed for directories, but not files. -// -// A common use case for OverlayContext is to allow editors to pass in -// a set of unsaved, modified files. -// -// Currently, only the Context.OpenFile function will respect the -// overlay. This may change in the future. -func OverlayContext(orig *build.Context, overlay map[string][]byte) *build.Context { - // TODO(dominikh): Implement IsDir, HasSubdir and ReadDir - - rc := func(data []byte) (io.ReadCloser, error) { - return ioutil.NopCloser(bytes.NewBuffer(data)), nil - } - - copy := *orig // make a copy - ctxt := © - ctxt.OpenFile = func(path string) (io.ReadCloser, error) { - // Fast path: names match exactly. - if content, ok := overlay[path]; ok { - return rc(content) - } - - // Slow path: check for same file under a different - // alias, perhaps due to a symbolic link. - for filename, content := range overlay { - if sameFile(path, filename) { - return rc(content) - } - } - - return OpenFile(orig, path) - } - return ctxt -} - -// ParseOverlayArchive parses an archive containing Go files and their -// contents. The result is intended to be used with OverlayContext. -// -// -// Archive format -// -// The archive consists of a series of files. Each file consists of a -// name, a decimal file size and the file contents, separated by -// newlinews. No newline follows after the file contents. -func ParseOverlayArchive(archive io.Reader) (map[string][]byte, error) { - overlay := make(map[string][]byte) - r := bufio.NewReader(archive) - for { - // Read file name. - filename, err := r.ReadString('\n') - if err != nil { - if err == io.EOF { - break // OK - } - return nil, fmt.Errorf("reading archive file name: %v", err) - } - filename = filepath.Clean(strings.TrimSpace(filename)) - - // Read file size. - sz, err := r.ReadString('\n') - if err != nil { - return nil, fmt.Errorf("reading size of archive file %s: %v", filename, err) - } - sz = strings.TrimSpace(sz) - size, err := strconv.ParseUint(sz, 10, 32) - if err != nil { - return nil, fmt.Errorf("parsing size of archive file %s: %v", filename, err) - } - - // Read file content. - content := make([]byte, size) - if _, err := io.ReadFull(r, content); err != nil { - return nil, fmt.Errorf("reading archive file %s: %v", filename, err) - } - overlay[filename] = content - } - - return overlay, nil -} diff --git a/vendor/golang.org/x/tools/go/buildutil/tags.go b/vendor/golang.org/x/tools/go/buildutil/tags.go deleted file mode 100644 index 486606f3..00000000 --- a/vendor/golang.org/x/tools/go/buildutil/tags.go +++ /dev/null @@ -1,75 +0,0 @@ -package buildutil - -// This logic was copied from stringsFlag from $GOROOT/src/cmd/go/build.go. - -import "fmt" - -const TagsFlagDoc = "a list of `build tags` to consider satisfied during the build. " + - "For more information about build tags, see the description of " + - "build constraints in the documentation for the go/build package" - -// TagsFlag is an implementation of the flag.Value and flag.Getter interfaces that parses -// a flag value in the same manner as go build's -tags flag and -// populates a []string slice. -// -// See $GOROOT/src/go/build/doc.go for description of build tags. -// See $GOROOT/src/cmd/go/doc.go for description of 'go build -tags' flag. -// -// Example: -// flag.Var((*buildutil.TagsFlag)(&build.Default.BuildTags), "tags", buildutil.TagsFlagDoc) -type TagsFlag []string - -func (v *TagsFlag) Set(s string) error { - var err error - *v, err = splitQuotedFields(s) - if *v == nil { - *v = []string{} - } - return err -} - -func (v *TagsFlag) Get() interface{} { return *v } - -func splitQuotedFields(s string) ([]string, error) { - // Split fields allowing '' or "" around elements. - // Quotes further inside the string do not count. - var f []string - for len(s) > 0 { - for len(s) > 0 && isSpaceByte(s[0]) { - s = s[1:] - } - if len(s) == 0 { - break - } - // Accepted quoted string. No unescaping inside. - if s[0] == '"' || s[0] == '\'' { - quote := s[0] - s = s[1:] - i := 0 - for i < len(s) && s[i] != quote { - i++ - } - if i >= len(s) { - return nil, fmt.Errorf("unterminated %c string", quote) - } - f = append(f, s[:i]) - s = s[i+1:] - continue - } - i := 0 - for i < len(s) && !isSpaceByte(s[i]) { - i++ - } - f = append(f, s[:i]) - s = s[i:] - } - return f, nil -} - -func (v *TagsFlag) String() string { - return "<tagsFlag>" -} - -func isSpaceByte(c byte) bool { - return c == ' ' || c == '\t' || c == '\n' || c == '\r' -} diff --git a/vendor/golang.org/x/tools/go/buildutil/util.go b/vendor/golang.org/x/tools/go/buildutil/util.go deleted file mode 100644 index fc923d7a..00000000 --- a/vendor/golang.org/x/tools/go/buildutil/util.go +++ /dev/null @@ -1,212 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package buildutil - -import ( - "fmt" - "go/ast" - "go/build" - "go/parser" - "go/token" - "io" - "io/ioutil" - "os" - "path" - "path/filepath" - "strings" -) - -// ParseFile behaves like parser.ParseFile, -// but uses the build context's file system interface, if any. -// -// If file is not absolute (as defined by IsAbsPath), the (dir, file) -// components are joined using JoinPath; dir must be absolute. -// -// The displayPath function, if provided, is used to transform the -// filename that will be attached to the ASTs. -// -// TODO(adonovan): call this from go/loader.parseFiles when the tree thaws. -// -func ParseFile(fset *token.FileSet, ctxt *build.Context, displayPath func(string) string, dir string, file string, mode parser.Mode) (*ast.File, error) { - if !IsAbsPath(ctxt, file) { - file = JoinPath(ctxt, dir, file) - } - rd, err := OpenFile(ctxt, file) - if err != nil { - return nil, err - } - defer rd.Close() // ignore error - if displayPath != nil { - file = displayPath(file) - } - return parser.ParseFile(fset, file, rd, mode) -} - -// ContainingPackage returns the package containing filename. -// -// If filename is not absolute, it is interpreted relative to working directory dir. -// All I/O is via the build context's file system interface, if any. -// -// The '...Files []string' fields of the resulting build.Package are not -// populated (build.FindOnly mode). -// -func ContainingPackage(ctxt *build.Context, dir, filename string) (*build.Package, error) { - if !IsAbsPath(ctxt, filename) { - filename = JoinPath(ctxt, dir, filename) - } - - // We must not assume the file tree uses - // "/" always, - // `\` always, - // or os.PathSeparator (which varies by platform), - // but to make any progress, we are forced to assume that - // paths will not use `\` unless the PathSeparator - // is also `\`, thus we can rely on filepath.ToSlash for some sanity. - - dirSlash := path.Dir(filepath.ToSlash(filename)) + "/" - - // We assume that no source root (GOPATH[i] or GOROOT) contains any other. - for _, srcdir := range ctxt.SrcDirs() { - srcdirSlash := filepath.ToSlash(srcdir) + "/" - if importPath, ok := HasSubdir(ctxt, srcdirSlash, dirSlash); ok { - return ctxt.Import(importPath, dir, build.FindOnly) - } - } - - return nil, fmt.Errorf("can't find package containing %s", filename) -} - -// -- Effective methods of file system interface ------------------------- - -// (go/build.Context defines these as methods, but does not export them.) - -// hasSubdir calls ctxt.HasSubdir (if not nil) or else uses -// the local file system to answer the question. -func HasSubdir(ctxt *build.Context, root, dir string) (rel string, ok bool) { - if f := ctxt.HasSubdir; f != nil { - return f(root, dir) - } - - // Try using paths we received. - if rel, ok = hasSubdir(root, dir); ok { - return - } - - // Try expanding symlinks and comparing - // expanded against unexpanded and - // expanded against expanded. - rootSym, _ := filepath.EvalSymlinks(root) - dirSym, _ := filepath.EvalSymlinks(dir) - - if rel, ok = hasSubdir(rootSym, dir); ok { - return - } - if rel, ok = hasSubdir(root, dirSym); ok { - return - } - return hasSubdir(rootSym, dirSym) -} - -func hasSubdir(root, dir string) (rel string, ok bool) { - const sep = string(filepath.Separator) - root = filepath.Clean(root) - if !strings.HasSuffix(root, sep) { - root += sep - } - - dir = filepath.Clean(dir) - if !strings.HasPrefix(dir, root) { - return "", false - } - - return filepath.ToSlash(dir[len(root):]), true -} - -// FileExists returns true if the specified file exists, -// using the build context's file system interface. -func FileExists(ctxt *build.Context, path string) bool { - if ctxt.OpenFile != nil { - r, err := ctxt.OpenFile(path) - if err != nil { - return false - } - r.Close() // ignore error - return true - } - _, err := os.Stat(path) - return err == nil -} - -// OpenFile behaves like os.Open, -// but uses the build context's file system interface, if any. -func OpenFile(ctxt *build.Context, path string) (io.ReadCloser, error) { - if ctxt.OpenFile != nil { - return ctxt.OpenFile(path) - } - return os.Open(path) -} - -// IsAbsPath behaves like filepath.IsAbs, -// but uses the build context's file system interface, if any. -func IsAbsPath(ctxt *build.Context, path string) bool { - if ctxt.IsAbsPath != nil { - return ctxt.IsAbsPath(path) - } - return filepath.IsAbs(path) -} - -// JoinPath behaves like filepath.Join, -// but uses the build context's file system interface, if any. -func JoinPath(ctxt *build.Context, path ...string) string { - if ctxt.JoinPath != nil { - return ctxt.JoinPath(path...) - } - return filepath.Join(path...) -} - -// IsDir behaves like os.Stat plus IsDir, -// but uses the build context's file system interface, if any. -func IsDir(ctxt *build.Context, path string) bool { - if ctxt.IsDir != nil { - return ctxt.IsDir(path) - } - fi, err := os.Stat(path) - return err == nil && fi.IsDir() -} - -// ReadDir behaves like ioutil.ReadDir, -// but uses the build context's file system interface, if any. -func ReadDir(ctxt *build.Context, path string) ([]os.FileInfo, error) { - if ctxt.ReadDir != nil { - return ctxt.ReadDir(path) - } - return ioutil.ReadDir(path) -} - -// SplitPathList behaves like filepath.SplitList, -// but uses the build context's file system interface, if any. -func SplitPathList(ctxt *build.Context, s string) []string { - if ctxt.SplitPathList != nil { - return ctxt.SplitPathList(s) - } - return filepath.SplitList(s) -} - -// sameFile returns true if x and y have the same basename and denote -// the same file. -// -func sameFile(x, y string) bool { - if path.Clean(x) == path.Clean(y) { - return true - } - if filepath.Base(x) == filepath.Base(y) { // (optimisation) - if xi, err := os.Stat(x); err == nil { - if yi, err := os.Stat(y); err == nil { - return os.SameFile(xi, yi) - } - } - } - return false -} diff --git a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go new file mode 100644 index 00000000..4c238d10 --- /dev/null +++ b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go @@ -0,0 +1,109 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package gcexportdata provides functions for locating, reading, and +// writing export data files containing type information produced by the +// gc compiler. This package supports go1.7 export data format and all +// later versions. +// +// Although it might seem convenient for this package to live alongside +// go/types in the standard library, this would cause version skew +// problems for developer tools that use it, since they must be able to +// consume the outputs of the gc compiler both before and after a Go +// update such as from Go 1.7 to Go 1.8. Because this package lives in +// golang.org/x/tools, sites can update their version of this repo some +// time before the Go 1.8 release and rebuild and redeploy their +// developer tools, which will then be able to consume both Go 1.7 and +// Go 1.8 export data files, so they will work before and after the +// Go update. (See discussion at https://github.com/golang/go/issues/15651.) +// +package gcexportdata // import "golang.org/x/tools/go/gcexportdata" + +import ( + "bufio" + "bytes" + "fmt" + "go/token" + "go/types" + "io" + "io/ioutil" + + "golang.org/x/tools/go/internal/gcimporter" +) + +// Find returns the name of an object (.o) or archive (.a) file +// containing type information for the specified import path, +// using the workspace layout conventions of go/build. +// If no file was found, an empty filename is returned. +// +// A relative srcDir is interpreted relative to the current working directory. +// +// Find also returns the package's resolved (canonical) import path, +// reflecting the effects of srcDir and vendoring on importPath. +func Find(importPath, srcDir string) (filename, path string) { + return gcimporter.FindPkg(importPath, srcDir) +} + +// NewReader returns a reader for the export data section of an object +// (.o) or archive (.a) file read from r. The new reader may provide +// additional trailing data beyond the end of the export data. +func NewReader(r io.Reader) (io.Reader, error) { + buf := bufio.NewReader(r) + _, err := gcimporter.FindExportData(buf) + // If we ever switch to a zip-like archive format with the ToC + // at the end, we can return the correct portion of export data, + // but for now we must return the entire rest of the file. + return buf, err +} + +// Read reads export data from in, decodes it, and returns type +// information for the package. +// The package name is specified by path. +// File position information is added to fset. +// +// Read may inspect and add to the imports map to ensure that references +// within the export data to other packages are consistent. The caller +// must ensure that imports[path] does not exist, or exists but is +// incomplete (see types.Package.Complete), and Read inserts the +// resulting package into this map entry. +// +// On return, the state of the reader is undefined. +func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) { + data, err := ioutil.ReadAll(in) + if err != nil { + return nil, fmt.Errorf("reading export data for %q: %v", path, err) + } + + if bytes.HasPrefix(data, []byte("!<arch>")) { + return nil, fmt.Errorf("can't read export data for %q directly from an archive file (call gcexportdata.NewReader first to extract export data)", path) + } + + // The App Engine Go runtime v1.6 uses the old export data format. + // TODO(adonovan): delete once v1.7 has been around for a while. + if bytes.HasPrefix(data, []byte("package ")) { + return gcimporter.ImportData(imports, path, path, bytes.NewReader(data)) + } + + // The indexed export format starts with an 'i'; the older + // binary export format starts with a 'c', 'd', or 'v' + // (from "version"). Select appropriate importer. + if len(data) > 0 && data[0] == 'i' { + _, pkg, err := gcimporter.IImportData(fset, imports, data[1:], path) + return pkg, err + } + + _, pkg, err := gcimporter.BImportData(fset, imports, data, path) + return pkg, err +} + +// Write writes encoded type information for the specified package to out. +// The FileSet provides file position information for named objects. +func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error { + b, err := gcimporter.BExportData(fset, pkg) + if err != nil { + return err + } + _, err = out.Write(b) + return err +} diff --git a/vendor/golang.org/x/tools/go/gcexportdata/importer.go b/vendor/golang.org/x/tools/go/gcexportdata/importer.go new file mode 100644 index 00000000..efe221e7 --- /dev/null +++ b/vendor/golang.org/x/tools/go/gcexportdata/importer.go @@ -0,0 +1,73 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package gcexportdata + +import ( + "fmt" + "go/token" + "go/types" + "os" +) + +// NewImporter returns a new instance of the types.Importer interface +// that reads type information from export data files written by gc. +// The Importer also satisfies types.ImporterFrom. +// +// Export data files are located using "go build" workspace conventions +// and the build.Default context. +// +// Use this importer instead of go/importer.For("gc", ...) to avoid the +// version-skew problems described in the documentation of this package, +// or to control the FileSet or access the imports map populated during +// package loading. +// +func NewImporter(fset *token.FileSet, imports map[string]*types.Package) types.ImporterFrom { + return importer{fset, imports} +} + +type importer struct { + fset *token.FileSet + imports map[string]*types.Package +} + +func (imp importer) Import(importPath string) (*types.Package, error) { + return imp.ImportFrom(importPath, "", 0) +} + +func (imp importer) ImportFrom(importPath, srcDir string, mode types.ImportMode) (_ *types.Package, err error) { + filename, path := Find(importPath, srcDir) + if filename == "" { + if importPath == "unsafe" { + // Even for unsafe, call Find first in case + // the package was vendored. + return types.Unsafe, nil + } + return nil, fmt.Errorf("can't find import: %s", importPath) + } + + if pkg, ok := imp.imports[path]; ok && pkg.Complete() { + return pkg, nil // cache hit + } + + // open file + f, err := os.Open(filename) + if err != nil { + return nil, err + } + defer func() { + f.Close() + if err != nil { + // add file name to error + err = fmt.Errorf("reading export data: %s: %v", filename, err) + } + }() + + r, err := NewReader(f) + if err != nil { + return nil, err + } + + return Read(r, imp.fset, imp.imports, path) +} diff --git a/vendor/golang.org/x/tools/go/gcexportdata/main.go b/vendor/golang.org/x/tools/go/gcexportdata/main.go new file mode 100644 index 00000000..2713dce6 --- /dev/null +++ b/vendor/golang.org/x/tools/go/gcexportdata/main.go @@ -0,0 +1,99 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build ignore + +// The gcexportdata command is a diagnostic tool that displays the +// contents of gc export data files. +package main + +import ( + "flag" + "fmt" + "go/token" + "go/types" + "log" + "os" + + "golang.org/x/tools/go/gcexportdata" + "golang.org/x/tools/go/types/typeutil" +) + +var packageFlag = flag.String("package", "", "alternative package to print") + +func main() { + log.SetPrefix("gcexportdata: ") + log.SetFlags(0) + flag.Usage = func() { + fmt.Fprintln(os.Stderr, "usage: gcexportdata [-package path] file.a") + } + flag.Parse() + if flag.NArg() != 1 { + flag.Usage() + os.Exit(2) + } + filename := flag.Args()[0] + + f, err := os.Open(filename) + if err != nil { + log.Fatal(err) + } + + r, err := gcexportdata.NewReader(f) + if err != nil { + log.Fatalf("%s: %s", filename, err) + } + + // Decode the package. + const primary = "<primary>" + imports := make(map[string]*types.Package) + fset := token.NewFileSet() + pkg, err := gcexportdata.Read(r, fset, imports, primary) + if err != nil { + log.Fatalf("%s: %s", filename, err) + } + + // Optionally select an indirectly mentioned package. + if *packageFlag != "" { + pkg = imports[*packageFlag] + if pkg == nil { + fmt.Fprintf(os.Stderr, "export data file %s does not mention %s; has:\n", + filename, *packageFlag) + for p := range imports { + if p != primary { + fmt.Fprintf(os.Stderr, "\t%s\n", p) + } + } + os.Exit(1) + } + } + + // Print all package-level declarations, including non-exported ones. + fmt.Printf("package %s\n", pkg.Name()) + for _, imp := range pkg.Imports() { + fmt.Printf("import %q\n", imp.Path()) + } + qual := func(p *types.Package) string { + if pkg == p { + return "" + } + return p.Name() + } + scope := pkg.Scope() + for _, name := range scope.Names() { + obj := scope.Lookup(name) + fmt.Printf("%s: %s\n", + fset.Position(obj.Pos()), + types.ObjectString(obj, qual)) + + // For types, print each method. + if _, ok := obj.(*types.TypeName); ok { + for _, method := range typeutil.IntuitiveMethodSet(obj.Type(), nil) { + fmt.Printf("%s: %s\n", + fset.Position(method.Obj().Pos()), + types.SelectionString(method, qual)) + } + } + } +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go b/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go new file mode 100644 index 00000000..6a9821ae --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/bexport.go @@ -0,0 +1,852 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Binary package export. +// This file was derived from $GOROOT/src/cmd/compile/internal/gc/bexport.go; +// see that file for specification of the format. + +package gcimporter + +import ( + "bytes" + "encoding/binary" + "fmt" + "go/ast" + "go/constant" + "go/token" + "go/types" + "math" + "math/big" + "sort" + "strings" +) + +// If debugFormat is set, each integer and string value is preceded by a marker +// and position information in the encoding. This mechanism permits an importer +// to recognize immediately when it is out of sync. The importer recognizes this +// mode automatically (i.e., it can import export data produced with debugging +// support even if debugFormat is not set at the time of import). This mode will +// lead to massively larger export data (by a factor of 2 to 3) and should only +// be enabled during development and debugging. +// +// NOTE: This flag is the first flag to enable if importing dies because of +// (suspected) format errors, and whenever a change is made to the format. +const debugFormat = false // default: false + +// If trace is set, debugging output is printed to std out. +const trace = false // default: false + +// Current export format version. Increase with each format change. +// Note: The latest binary (non-indexed) export format is at version 6. +// This exporter is still at level 4, but it doesn't matter since +// the binary importer can handle older versions just fine. +// 6: package height (CL 105038) -- NOT IMPLEMENTED HERE +// 5: improved position encoding efficiency (issue 20080, CL 41619) -- NOT IMPLEMEMTED HERE +// 4: type name objects support type aliases, uses aliasTag +// 3: Go1.8 encoding (same as version 2, aliasTag defined but never used) +// 2: removed unused bool in ODCL export (compiler only) +// 1: header format change (more regular), export package for _ struct fields +// 0: Go1.7 encoding +const exportVersion = 4 + +// trackAllTypes enables cycle tracking for all types, not just named +// types. The existing compiler invariants assume that unnamed types +// that are not completely set up are not used, or else there are spurious +// errors. +// If disabled, only named types are tracked, possibly leading to slightly +// less efficient encoding in rare cases. It also prevents the export of +// some corner-case type declarations (but those are not handled correctly +// with with the textual export format either). +// TODO(gri) enable and remove once issues caused by it are fixed +const trackAllTypes = false + +type exporter struct { + fset *token.FileSet + out bytes.Buffer + + // object -> index maps, indexed in order of serialization + strIndex map[string]int + pkgIndex map[*types.Package]int + typIndex map[types.Type]int + + // position encoding + posInfoFormat bool + prevFile string + prevLine int + + // debugging support + written int // bytes written + indent int // for trace +} + +// internalError represents an error generated inside this package. +type internalError string + +func (e internalError) Error() string { return "gcimporter: " + string(e) } + +func internalErrorf(format string, args ...interface{}) error { + return internalError(fmt.Sprintf(format, args...)) +} + +// BExportData returns binary export data for pkg. +// If no file set is provided, position info will be missing. +func BExportData(fset *token.FileSet, pkg *types.Package) (b []byte, err error) { + defer func() { + if e := recover(); e != nil { + if ierr, ok := e.(internalError); ok { + err = ierr + return + } + // Not an internal error; panic again. + panic(e) + } + }() + + p := exporter{ + fset: fset, + strIndex: map[string]int{"": 0}, // empty string is mapped to 0 + pkgIndex: make(map[*types.Package]int), + typIndex: make(map[types.Type]int), + posInfoFormat: true, // TODO(gri) might become a flag, eventually + } + + // write version info + // The version string must start with "version %d" where %d is the version + // number. Additional debugging information may follow after a blank; that + // text is ignored by the importer. + p.rawStringln(fmt.Sprintf("version %d", exportVersion)) + var debug string + if debugFormat { + debug = "debug" + } + p.rawStringln(debug) // cannot use p.bool since it's affected by debugFormat; also want to see this clearly + p.bool(trackAllTypes) + p.bool(p.posInfoFormat) + + // --- generic export data --- + + // populate type map with predeclared "known" types + for index, typ := range predeclared { + p.typIndex[typ] = index + } + if len(p.typIndex) != len(predeclared) { + return nil, internalError("duplicate entries in type map?") + } + + // write package data + p.pkg(pkg, true) + if trace { + p.tracef("\n") + } + + // write objects + objcount := 0 + scope := pkg.Scope() + for _, name := range scope.Names() { + if !ast.IsExported(name) { + continue + } + if trace { + p.tracef("\n") + } + p.obj(scope.Lookup(name)) + objcount++ + } + + // indicate end of list + if trace { + p.tracef("\n") + } + p.tag(endTag) + + // for self-verification only (redundant) + p.int(objcount) + + if trace { + p.tracef("\n") + } + + // --- end of export data --- + + return p.out.Bytes(), nil +} + +func (p *exporter) pkg(pkg *types.Package, emptypath bool) { + if pkg == nil { + panic(internalError("unexpected nil pkg")) + } + + // if we saw the package before, write its index (>= 0) + if i, ok := p.pkgIndex[pkg]; ok { + p.index('P', i) + return + } + + // otherwise, remember the package, write the package tag (< 0) and package data + if trace { + p.tracef("P%d = { ", len(p.pkgIndex)) + defer p.tracef("} ") + } + p.pkgIndex[pkg] = len(p.pkgIndex) + + p.tag(packageTag) + p.string(pkg.Name()) + if emptypath { + p.string("") + } else { + p.string(pkg.Path()) + } +} + +func (p *exporter) obj(obj types.Object) { + switch obj := obj.(type) { + case *types.Const: + p.tag(constTag) + p.pos(obj) + p.qualifiedName(obj) + p.typ(obj.Type()) + p.value(obj.Val()) + + case *types.TypeName: + if isAlias(obj) { + p.tag(aliasTag) + p.pos(obj) + p.qualifiedName(obj) + } else { + p.tag(typeTag) + } + p.typ(obj.Type()) + + case *types.Var: + p.tag(varTag) + p.pos(obj) + p.qualifiedName(obj) + p.typ(obj.Type()) + + case *types.Func: + p.tag(funcTag) + p.pos(obj) + p.qualifiedName(obj) + sig := obj.Type().(*types.Signature) + p.paramList(sig.Params(), sig.Variadic()) + p.paramList(sig.Results(), false) + + default: + panic(internalErrorf("unexpected object %v (%T)", obj, obj)) + } +} + +func (p *exporter) pos(obj types.Object) { + if !p.posInfoFormat { + return + } + + file, line := p.fileLine(obj) + if file == p.prevFile { + // common case: write line delta + // delta == 0 means different file or no line change + delta := line - p.prevLine + p.int(delta) + if delta == 0 { + p.int(-1) // -1 means no file change + } + } else { + // different file + p.int(0) + // Encode filename as length of common prefix with previous + // filename, followed by (possibly empty) suffix. Filenames + // frequently share path prefixes, so this can save a lot + // of space and make export data size less dependent on file + // path length. The suffix is unlikely to be empty because + // file names tend to end in ".go". + n := commonPrefixLen(p.prevFile, file) + p.int(n) // n >= 0 + p.string(file[n:]) // write suffix only + p.prevFile = file + p.int(line) + } + p.prevLine = line +} + +func (p *exporter) fileLine(obj types.Object) (file string, line int) { + if p.fset != nil { + pos := p.fset.Position(obj.Pos()) + file = pos.Filename + line = pos.Line + } + return +} + +func commonPrefixLen(a, b string) int { + if len(a) > len(b) { + a, b = b, a + } + // len(a) <= len(b) + i := 0 + for i < len(a) && a[i] == b[i] { + i++ + } + return i +} + +func (p *exporter) qualifiedName(obj types.Object) { + p.string(obj.Name()) + p.pkg(obj.Pkg(), false) +} + +func (p *exporter) typ(t types.Type) { + if t == nil { + panic(internalError("nil type")) + } + + // Possible optimization: Anonymous pointer types *T where + // T is a named type are common. We could canonicalize all + // such types *T to a single type PT = *T. This would lead + // to at most one *T entry in typIndex, and all future *T's + // would be encoded as the respective index directly. Would + // save 1 byte (pointerTag) per *T and reduce the typIndex + // size (at the cost of a canonicalization map). We can do + // this later, without encoding format change. + + // if we saw the type before, write its index (>= 0) + if i, ok := p.typIndex[t]; ok { + p.index('T', i) + return + } + + // otherwise, remember the type, write the type tag (< 0) and type data + if trackAllTypes { + if trace { + p.tracef("T%d = {>\n", len(p.typIndex)) + defer p.tracef("<\n} ") + } + p.typIndex[t] = len(p.typIndex) + } + + switch t := t.(type) { + case *types.Named: + if !trackAllTypes { + // if we don't track all types, track named types now + p.typIndex[t] = len(p.typIndex) + } + + p.tag(namedTag) + p.pos(t.Obj()) + p.qualifiedName(t.Obj()) + p.typ(t.Underlying()) + if !types.IsInterface(t) { + p.assocMethods(t) + } + + case *types.Array: + p.tag(arrayTag) + p.int64(t.Len()) + p.typ(t.Elem()) + + case *types.Slice: + p.tag(sliceTag) + p.typ(t.Elem()) + + case *dddSlice: + p.tag(dddTag) + p.typ(t.elem) + + case *types.Struct: + p.tag(structTag) + p.fieldList(t) + + case *types.Pointer: + p.tag(pointerTag) + p.typ(t.Elem()) + + case *types.Signature: + p.tag(signatureTag) + p.paramList(t.Params(), t.Variadic()) + p.paramList(t.Results(), false) + + case *types.Interface: + p.tag(interfaceTag) + p.iface(t) + + case *types.Map: + p.tag(mapTag) + p.typ(t.Key()) + p.typ(t.Elem()) + + case *types.Chan: + p.tag(chanTag) + p.int(int(3 - t.Dir())) // hack + p.typ(t.Elem()) + + default: + panic(internalErrorf("unexpected type %T: %s", t, t)) + } +} + +func (p *exporter) assocMethods(named *types.Named) { + // Sort methods (for determinism). + var methods []*types.Func + for i := 0; i < named.NumMethods(); i++ { + methods = append(methods, named.Method(i)) + } + sort.Sort(methodsByName(methods)) + + p.int(len(methods)) + + if trace && methods != nil { + p.tracef("associated methods {>\n") + } + + for i, m := range methods { + if trace && i > 0 { + p.tracef("\n") + } + + p.pos(m) + name := m.Name() + p.string(name) + if !exported(name) { + p.pkg(m.Pkg(), false) + } + + sig := m.Type().(*types.Signature) + p.paramList(types.NewTuple(sig.Recv()), false) + p.paramList(sig.Params(), sig.Variadic()) + p.paramList(sig.Results(), false) + p.int(0) // dummy value for go:nointerface pragma - ignored by importer + } + + if trace && methods != nil { + p.tracef("<\n} ") + } +} + +type methodsByName []*types.Func + +func (x methodsByName) Len() int { return len(x) } +func (x methodsByName) Swap(i, j int) { x[i], x[j] = x[j], x[i] } +func (x methodsByName) Less(i, j int) bool { return x[i].Name() < x[j].Name() } + +func (p *exporter) fieldList(t *types.Struct) { + if trace && t.NumFields() > 0 { + p.tracef("fields {>\n") + defer p.tracef("<\n} ") + } + + p.int(t.NumFields()) + for i := 0; i < t.NumFields(); i++ { + if trace && i > 0 { + p.tracef("\n") + } + p.field(t.Field(i)) + p.string(t.Tag(i)) + } +} + +func (p *exporter) field(f *types.Var) { + if !f.IsField() { + panic(internalError("field expected")) + } + + p.pos(f) + p.fieldName(f) + p.typ(f.Type()) +} + +func (p *exporter) iface(t *types.Interface) { + // TODO(gri): enable importer to load embedded interfaces, + // then emit Embeddeds and ExplicitMethods separately here. + p.int(0) + + n := t.NumMethods() + if trace && n > 0 { + p.tracef("methods {>\n") + defer p.tracef("<\n} ") + } + p.int(n) + for i := 0; i < n; i++ { + if trace && i > 0 { + p.tracef("\n") + } + p.method(t.Method(i)) + } +} + +func (p *exporter) method(m *types.Func) { + sig := m.Type().(*types.Signature) + if sig.Recv() == nil { + panic(internalError("method expected")) + } + + p.pos(m) + p.string(m.Name()) + if m.Name() != "_" && !ast.IsExported(m.Name()) { + p.pkg(m.Pkg(), false) + } + + // interface method; no need to encode receiver. + p.paramList(sig.Params(), sig.Variadic()) + p.paramList(sig.Results(), false) +} + +func (p *exporter) fieldName(f *types.Var) { + name := f.Name() + + if f.Anonymous() { + // anonymous field - we distinguish between 3 cases: + // 1) field name matches base type name and is exported + // 2) field name matches base type name and is not exported + // 3) field name doesn't match base type name (alias name) + bname := basetypeName(f.Type()) + if name == bname { + if ast.IsExported(name) { + name = "" // 1) we don't need to know the field name or package + } else { + name = "?" // 2) use unexported name "?" to force package export + } + } else { + // 3) indicate alias and export name as is + // (this requires an extra "@" but this is a rare case) + p.string("@") + } + } + + p.string(name) + if name != "" && !ast.IsExported(name) { + p.pkg(f.Pkg(), false) + } +} + +func basetypeName(typ types.Type) string { + switch typ := deref(typ).(type) { + case *types.Basic: + return typ.Name() + case *types.Named: + return typ.Obj().Name() + default: + return "" // unnamed type + } +} + +func (p *exporter) paramList(params *types.Tuple, variadic bool) { + // use negative length to indicate unnamed parameters + // (look at the first parameter only since either all + // names are present or all are absent) + n := params.Len() + if n > 0 && params.At(0).Name() == "" { + n = -n + } + p.int(n) + for i := 0; i < params.Len(); i++ { + q := params.At(i) + t := q.Type() + if variadic && i == params.Len()-1 { + t = &dddSlice{t.(*types.Slice).Elem()} + } + p.typ(t) + if n > 0 { + name := q.Name() + p.string(name) + if name != "_" { + p.pkg(q.Pkg(), false) + } + } + p.string("") // no compiler-specific info + } +} + +func (p *exporter) value(x constant.Value) { + if trace { + p.tracef("= ") + } + + switch x.Kind() { + case constant.Bool: + tag := falseTag + if constant.BoolVal(x) { + tag = trueTag + } + p.tag(tag) + + case constant.Int: + if v, exact := constant.Int64Val(x); exact { + // common case: x fits into an int64 - use compact encoding + p.tag(int64Tag) + p.int64(v) + return + } + // uncommon case: large x - use float encoding + // (powers of 2 will be encoded efficiently with exponent) + p.tag(floatTag) + p.float(constant.ToFloat(x)) + + case constant.Float: + p.tag(floatTag) + p.float(x) + + case constant.Complex: + p.tag(complexTag) + p.float(constant.Real(x)) + p.float(constant.Imag(x)) + + case constant.String: + p.tag(stringTag) + p.string(constant.StringVal(x)) + + case constant.Unknown: + // package contains type errors + p.tag(unknownTag) + + default: + panic(internalErrorf("unexpected value %v (%T)", x, x)) + } +} + +func (p *exporter) float(x constant.Value) { + if x.Kind() != constant.Float { + panic(internalErrorf("unexpected constant %v, want float", x)) + } + // extract sign (there is no -0) + sign := constant.Sign(x) + if sign == 0 { + // x == 0 + p.int(0) + return + } + // x != 0 + + var f big.Float + if v, exact := constant.Float64Val(x); exact { + // float64 + f.SetFloat64(v) + } else if num, denom := constant.Num(x), constant.Denom(x); num.Kind() == constant.Int { + // TODO(gri): add big.Rat accessor to constant.Value. + r := valueToRat(num) + f.SetRat(r.Quo(r, valueToRat(denom))) + } else { + // Value too large to represent as a fraction => inaccessible. + // TODO(gri): add big.Float accessor to constant.Value. + f.SetFloat64(math.MaxFloat64) // FIXME + } + + // extract exponent such that 0.5 <= m < 1.0 + var m big.Float + exp := f.MantExp(&m) + + // extract mantissa as *big.Int + // - set exponent large enough so mant satisfies mant.IsInt() + // - get *big.Int from mant + m.SetMantExp(&m, int(m.MinPrec())) + mant, acc := m.Int(nil) + if acc != big.Exact { + panic(internalError("internal error")) + } + + p.int(sign) + p.int(exp) + p.string(string(mant.Bytes())) +} + +func valueToRat(x constant.Value) *big.Rat { + // Convert little-endian to big-endian. + // I can't believe this is necessary. + bytes := constant.Bytes(x) + for i := 0; i < len(bytes)/2; i++ { + bytes[i], bytes[len(bytes)-1-i] = bytes[len(bytes)-1-i], bytes[i] + } + return new(big.Rat).SetInt(new(big.Int).SetBytes(bytes)) +} + +func (p *exporter) bool(b bool) bool { + if trace { + p.tracef("[") + defer p.tracef("= %v] ", b) + } + + x := 0 + if b { + x = 1 + } + p.int(x) + return b +} + +// ---------------------------------------------------------------------------- +// Low-level encoders + +func (p *exporter) index(marker byte, index int) { + if index < 0 { + panic(internalError("invalid index < 0")) + } + if debugFormat { + p.marker('t') + } + if trace { + p.tracef("%c%d ", marker, index) + } + p.rawInt64(int64(index)) +} + +func (p *exporter) tag(tag int) { + if tag >= 0 { + panic(internalError("invalid tag >= 0")) + } + if debugFormat { + p.marker('t') + } + if trace { + p.tracef("%s ", tagString[-tag]) + } + p.rawInt64(int64(tag)) +} + +func (p *exporter) int(x int) { + p.int64(int64(x)) +} + +func (p *exporter) int64(x int64) { + if debugFormat { + p.marker('i') + } + if trace { + p.tracef("%d ", x) + } + p.rawInt64(x) +} + +func (p *exporter) string(s string) { + if debugFormat { + p.marker('s') + } + if trace { + p.tracef("%q ", s) + } + // if we saw the string before, write its index (>= 0) + // (the empty string is mapped to 0) + if i, ok := p.strIndex[s]; ok { + p.rawInt64(int64(i)) + return + } + // otherwise, remember string and write its negative length and bytes + p.strIndex[s] = len(p.strIndex) + p.rawInt64(-int64(len(s))) + for i := 0; i < len(s); i++ { + p.rawByte(s[i]) + } +} + +// marker emits a marker byte and position information which makes +// it easy for a reader to detect if it is "out of sync". Used for +// debugFormat format only. +func (p *exporter) marker(m byte) { + p.rawByte(m) + // Enable this for help tracking down the location + // of an incorrect marker when running in debugFormat. + if false && trace { + p.tracef("#%d ", p.written) + } + p.rawInt64(int64(p.written)) +} + +// rawInt64 should only be used by low-level encoders. +func (p *exporter) rawInt64(x int64) { + var tmp [binary.MaxVarintLen64]byte + n := binary.PutVarint(tmp[:], x) + for i := 0; i < n; i++ { + p.rawByte(tmp[i]) + } +} + +// rawStringln should only be used to emit the initial version string. +func (p *exporter) rawStringln(s string) { + for i := 0; i < len(s); i++ { + p.rawByte(s[i]) + } + p.rawByte('\n') +} + +// rawByte is the bottleneck interface to write to p.out. +// rawByte escapes b as follows (any encoding does that +// hides '$'): +// +// '$' => '|' 'S' +// '|' => '|' '|' +// +// Necessary so other tools can find the end of the +// export data by searching for "$$". +// rawByte should only be used by low-level encoders. +func (p *exporter) rawByte(b byte) { + switch b { + case '$': + // write '$' as '|' 'S' + b = 'S' + fallthrough + case '|': + // write '|' as '|' '|' + p.out.WriteByte('|') + p.written++ + } + p.out.WriteByte(b) + p.written++ +} + +// tracef is like fmt.Printf but it rewrites the format string +// to take care of indentation. +func (p *exporter) tracef(format string, args ...interface{}) { + if strings.ContainsAny(format, "<>\n") { + var buf bytes.Buffer + for i := 0; i < len(format); i++ { + // no need to deal with runes + ch := format[i] + switch ch { + case '>': + p.indent++ + continue + case '<': + p.indent-- + continue + } + buf.WriteByte(ch) + if ch == '\n' { + for j := p.indent; j > 0; j-- { + buf.WriteString(". ") + } + } + } + format = buf.String() + } + fmt.Printf(format, args...) +} + +// Debugging support. +// (tagString is only used when tracing is enabled) +var tagString = [...]string{ + // Packages + -packageTag: "package", + + // Types + -namedTag: "named type", + -arrayTag: "array", + -sliceTag: "slice", + -dddTag: "ddd", + -structTag: "struct", + -pointerTag: "pointer", + -signatureTag: "signature", + -interfaceTag: "interface", + -mapTag: "map", + -chanTag: "chan", + + // Values + -falseTag: "false", + -trueTag: "true", + -int64Tag: "int64", + -floatTag: "float", + -fractionTag: "fraction", + -complexTag: "complex", + -stringTag: "string", + -unknownTag: "unknown", + + // Type aliases + -aliasTag: "alias", +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go b/vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go new file mode 100644 index 00000000..b31eacfc --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/bimport.go @@ -0,0 +1,1028 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file is a copy of $GOROOT/src/go/internal/gcimporter/bimport.go. + +package gcimporter + +import ( + "encoding/binary" + "fmt" + "go/constant" + "go/token" + "go/types" + "sort" + "strconv" + "strings" + "sync" + "unicode" + "unicode/utf8" +) + +type importer struct { + imports map[string]*types.Package + data []byte + importpath string + buf []byte // for reading strings + version int // export format version + + // object lists + strList []string // in order of appearance + pathList []string // in order of appearance + pkgList []*types.Package // in order of appearance + typList []types.Type // in order of appearance + interfaceList []*types.Interface // for delayed completion only + trackAllTypes bool + + // position encoding + posInfoFormat bool + prevFile string + prevLine int + fake fakeFileSet + + // debugging support + debugFormat bool + read int // bytes read +} + +// BImportData imports a package from the serialized package data +// and returns the number of bytes consumed and a reference to the package. +// If the export data version is not recognized or the format is otherwise +// compromised, an error is returned. +func BImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) { + // catch panics and return them as errors + const currentVersion = 6 + version := -1 // unknown version + defer func() { + if e := recover(); e != nil { + // Return a (possibly nil or incomplete) package unchanged (see #16088). + if version > currentVersion { + err = fmt.Errorf("cannot import %q (%v), export data is newer version - update tool", path, e) + } else { + err = fmt.Errorf("cannot import %q (%v), possibly version skew - reinstall package", path, e) + } + } + }() + + p := importer{ + imports: imports, + data: data, + importpath: path, + version: version, + strList: []string{""}, // empty string is mapped to 0 + pathList: []string{""}, // empty string is mapped to 0 + fake: fakeFileSet{ + fset: fset, + files: make(map[string]*token.File), + }, + } + + // read version info + var versionstr string + if b := p.rawByte(); b == 'c' || b == 'd' { + // Go1.7 encoding; first byte encodes low-level + // encoding format (compact vs debug). + // For backward-compatibility only (avoid problems with + // old installed packages). Newly compiled packages use + // the extensible format string. + // TODO(gri) Remove this support eventually; after Go1.8. + if b == 'd' { + p.debugFormat = true + } + p.trackAllTypes = p.rawByte() == 'a' + p.posInfoFormat = p.int() != 0 + versionstr = p.string() + if versionstr == "v1" { + version = 0 + } + } else { + // Go1.8 extensible encoding + // read version string and extract version number (ignore anything after the version number) + versionstr = p.rawStringln(b) + if s := strings.SplitN(versionstr, " ", 3); len(s) >= 2 && s[0] == "version" { + if v, err := strconv.Atoi(s[1]); err == nil && v > 0 { + version = v + } + } + } + p.version = version + + // read version specific flags - extend as necessary + switch p.version { + // case currentVersion: + // ... + // fallthrough + case currentVersion, 5, 4, 3, 2, 1: + p.debugFormat = p.rawStringln(p.rawByte()) == "debug" + p.trackAllTypes = p.int() != 0 + p.posInfoFormat = p.int() != 0 + case 0: + // Go1.7 encoding format - nothing to do here + default: + errorf("unknown bexport format version %d (%q)", p.version, versionstr) + } + + // --- generic export data --- + + // populate typList with predeclared "known" types + p.typList = append(p.typList, predeclared...) + + // read package data + pkg = p.pkg() + + // read objects of phase 1 only (see cmd/compile/internal/gc/bexport.go) + objcount := 0 + for { + tag := p.tagOrIndex() + if tag == endTag { + break + } + p.obj(tag) + objcount++ + } + + // self-verification + if count := p.int(); count != objcount { + errorf("got %d objects; want %d", objcount, count) + } + + // ignore compiler-specific import data + + // complete interfaces + // TODO(gri) re-investigate if we still need to do this in a delayed fashion + for _, typ := range p.interfaceList { + typ.Complete() + } + + // record all referenced packages as imports + list := append(([]*types.Package)(nil), p.pkgList[1:]...) + sort.Sort(byPath(list)) + pkg.SetImports(list) + + // package was imported completely and without errors + pkg.MarkComplete() + + return p.read, pkg, nil +} + +func errorf(format string, args ...interface{}) { + panic(fmt.Sprintf(format, args...)) +} + +func (p *importer) pkg() *types.Package { + // if the package was seen before, i is its index (>= 0) + i := p.tagOrIndex() + if i >= 0 { + return p.pkgList[i] + } + + // otherwise, i is the package tag (< 0) + if i != packageTag { + errorf("unexpected package tag %d version %d", i, p.version) + } + + // read package data + name := p.string() + var path string + if p.version >= 5 { + path = p.path() + } else { + path = p.string() + } + if p.version >= 6 { + p.int() // package height; unused by go/types + } + + // we should never see an empty package name + if name == "" { + errorf("empty package name in import") + } + + // an empty path denotes the package we are currently importing; + // it must be the first package we see + if (path == "") != (len(p.pkgList) == 0) { + errorf("package path %q for pkg index %d", path, len(p.pkgList)) + } + + // if the package was imported before, use that one; otherwise create a new one + if path == "" { + path = p.importpath + } + pkg := p.imports[path] + if pkg == nil { + pkg = types.NewPackage(path, name) + p.imports[path] = pkg + } else if pkg.Name() != name { + errorf("conflicting names %s and %s for package %q", pkg.Name(), name, path) + } + p.pkgList = append(p.pkgList, pkg) + + return pkg +} + +// objTag returns the tag value for each object kind. +func objTag(obj types.Object) int { + switch obj.(type) { + case *types.Const: + return constTag + case *types.TypeName: + return typeTag + case *types.Var: + return varTag + case *types.Func: + return funcTag + default: + errorf("unexpected object: %v (%T)", obj, obj) // panics + panic("unreachable") + } +} + +func sameObj(a, b types.Object) bool { + // Because unnamed types are not canonicalized, we cannot simply compare types for + // (pointer) identity. + // Ideally we'd check equality of constant values as well, but this is good enough. + return objTag(a) == objTag(b) && types.Identical(a.Type(), b.Type()) +} + +func (p *importer) declare(obj types.Object) { + pkg := obj.Pkg() + if alt := pkg.Scope().Insert(obj); alt != nil { + // This can only trigger if we import a (non-type) object a second time. + // Excluding type aliases, this cannot happen because 1) we only import a package + // once; and b) we ignore compiler-specific export data which may contain + // functions whose inlined function bodies refer to other functions that + // were already imported. + // However, type aliases require reexporting the original type, so we need + // to allow it (see also the comment in cmd/compile/internal/gc/bimport.go, + // method importer.obj, switch case importing functions). + // TODO(gri) review/update this comment once the gc compiler handles type aliases. + if !sameObj(obj, alt) { + errorf("inconsistent import:\n\t%v\npreviously imported as:\n\t%v\n", obj, alt) + } + } +} + +func (p *importer) obj(tag int) { + switch tag { + case constTag: + pos := p.pos() + pkg, name := p.qualifiedName() + typ := p.typ(nil, nil) + val := p.value() + p.declare(types.NewConst(pos, pkg, name, typ, val)) + + case aliasTag: + // TODO(gri) verify type alias hookup is correct + pos := p.pos() + pkg, name := p.qualifiedName() + typ := p.typ(nil, nil) + p.declare(types.NewTypeName(pos, pkg, name, typ)) + + case typeTag: + p.typ(nil, nil) + + case varTag: + pos := p.pos() + pkg, name := p.qualifiedName() + typ := p.typ(nil, nil) + p.declare(types.NewVar(pos, pkg, name, typ)) + + case funcTag: + pos := p.pos() + pkg, name := p.qualifiedName() + params, isddd := p.paramList() + result, _ := p.paramList() + sig := types.NewSignature(nil, params, result, isddd) + p.declare(types.NewFunc(pos, pkg, name, sig)) + + default: + errorf("unexpected object tag %d", tag) + } +} + +const deltaNewFile = -64 // see cmd/compile/internal/gc/bexport.go + +func (p *importer) pos() token.Pos { + if !p.posInfoFormat { + return token.NoPos + } + + file := p.prevFile + line := p.prevLine + delta := p.int() + line += delta + if p.version >= 5 { + if delta == deltaNewFile { + if n := p.int(); n >= 0 { + // file changed + file = p.path() + line = n + } + } + } else { + if delta == 0 { + if n := p.int(); n >= 0 { + // file changed + file = p.prevFile[:n] + p.string() + line = p.int() + } + } + } + p.prevFile = file + p.prevLine = line + + return p.fake.pos(file, line) +} + +// Synthesize a token.Pos +type fakeFileSet struct { + fset *token.FileSet + files map[string]*token.File +} + +func (s *fakeFileSet) pos(file string, line int) token.Pos { + // Since we don't know the set of needed file positions, we + // reserve maxlines positions per file. + const maxlines = 64 * 1024 + f := s.files[file] + if f == nil { + f = s.fset.AddFile(file, -1, maxlines) + s.files[file] = f + // Allocate the fake linebreak indices on first use. + // TODO(adonovan): opt: save ~512KB using a more complex scheme? + fakeLinesOnce.Do(func() { + fakeLines = make([]int, maxlines) + for i := range fakeLines { + fakeLines[i] = i + } + }) + f.SetLines(fakeLines) + } + + if line > maxlines { + line = 1 + } + + // Treat the file as if it contained only newlines + // and column=1: use the line number as the offset. + return f.Pos(line - 1) +} + +var ( + fakeLines []int + fakeLinesOnce sync.Once +) + +func (p *importer) qualifiedName() (pkg *types.Package, name string) { + name = p.string() + pkg = p.pkg() + return +} + +func (p *importer) record(t types.Type) { + p.typList = append(p.typList, t) +} + +// A dddSlice is a types.Type representing ...T parameters. +// It only appears for parameter types and does not escape +// the importer. +type dddSlice struct { + elem types.Type +} + +func (t *dddSlice) Underlying() types.Type { return t } +func (t *dddSlice) String() string { return "..." + t.elem.String() } + +// parent is the package which declared the type; parent == nil means +// the package currently imported. The parent package is needed for +// exported struct fields and interface methods which don't contain +// explicit package information in the export data. +// +// A non-nil tname is used as the "owner" of the result type; i.e., +// the result type is the underlying type of tname. tname is used +// to give interface methods a named receiver type where possible. +func (p *importer) typ(parent *types.Package, tname *types.Named) types.Type { + // if the type was seen before, i is its index (>= 0) + i := p.tagOrIndex() + if i >= 0 { + return p.typList[i] + } + + // otherwise, i is the type tag (< 0) + switch i { + case namedTag: + // read type object + pos := p.pos() + parent, name := p.qualifiedName() + scope := parent.Scope() + obj := scope.Lookup(name) + + // if the object doesn't exist yet, create and insert it + if obj == nil { + obj = types.NewTypeName(pos, parent, name, nil) + scope.Insert(obj) + } + + if _, ok := obj.(*types.TypeName); !ok { + errorf("pkg = %s, name = %s => %s", parent, name, obj) + } + + // associate new named type with obj if it doesn't exist yet + t0 := types.NewNamed(obj.(*types.TypeName), nil, nil) + + // but record the existing type, if any + tname := obj.Type().(*types.Named) // tname is either t0 or the existing type + p.record(tname) + + // read underlying type + t0.SetUnderlying(p.typ(parent, t0)) + + // interfaces don't have associated methods + if types.IsInterface(t0) { + return tname + } + + // read associated methods + for i := p.int(); i > 0; i-- { + // TODO(gri) replace this with something closer to fieldName + pos := p.pos() + name := p.string() + if !exported(name) { + p.pkg() + } + + recv, _ := p.paramList() // TODO(gri) do we need a full param list for the receiver? + params, isddd := p.paramList() + result, _ := p.paramList() + p.int() // go:nointerface pragma - discarded + + sig := types.NewSignature(recv.At(0), params, result, isddd) + t0.AddMethod(types.NewFunc(pos, parent, name, sig)) + } + + return tname + + case arrayTag: + t := new(types.Array) + if p.trackAllTypes { + p.record(t) + } + + n := p.int64() + *t = *types.NewArray(p.typ(parent, nil), n) + return t + + case sliceTag: + t := new(types.Slice) + if p.trackAllTypes { + p.record(t) + } + + *t = *types.NewSlice(p.typ(parent, nil)) + return t + + case dddTag: + t := new(dddSlice) + if p.trackAllTypes { + p.record(t) + } + + t.elem = p.typ(parent, nil) + return t + + case structTag: + t := new(types.Struct) + if p.trackAllTypes { + p.record(t) + } + + *t = *types.NewStruct(p.fieldList(parent)) + return t + + case pointerTag: + t := new(types.Pointer) + if p.trackAllTypes { + p.record(t) + } + + *t = *types.NewPointer(p.typ(parent, nil)) + return t + + case signatureTag: + t := new(types.Signature) + if p.trackAllTypes { + p.record(t) + } + + params, isddd := p.paramList() + result, _ := p.paramList() + *t = *types.NewSignature(nil, params, result, isddd) + return t + + case interfaceTag: + // Create a dummy entry in the type list. This is safe because we + // cannot expect the interface type to appear in a cycle, as any + // such cycle must contain a named type which would have been + // first defined earlier. + // TODO(gri) Is this still true now that we have type aliases? + // See issue #23225. + n := len(p.typList) + if p.trackAllTypes { + p.record(nil) + } + + var embeddeds []types.Type + for n := p.int(); n > 0; n-- { + p.pos() + embeddeds = append(embeddeds, p.typ(parent, nil)) + } + + t := newInterface(p.methodList(parent, tname), embeddeds) + p.interfaceList = append(p.interfaceList, t) + if p.trackAllTypes { + p.typList[n] = t + } + return t + + case mapTag: + t := new(types.Map) + if p.trackAllTypes { + p.record(t) + } + + key := p.typ(parent, nil) + val := p.typ(parent, nil) + *t = *types.NewMap(key, val) + return t + + case chanTag: + t := new(types.Chan) + if p.trackAllTypes { + p.record(t) + } + + dir := chanDir(p.int()) + val := p.typ(parent, nil) + *t = *types.NewChan(dir, val) + return t + + default: + errorf("unexpected type tag %d", i) // panics + panic("unreachable") + } +} + +func chanDir(d int) types.ChanDir { + // tag values must match the constants in cmd/compile/internal/gc/go.go + switch d { + case 1 /* Crecv */ : + return types.RecvOnly + case 2 /* Csend */ : + return types.SendOnly + case 3 /* Cboth */ : + return types.SendRecv + default: + errorf("unexpected channel dir %d", d) + return 0 + } +} + +func (p *importer) fieldList(parent *types.Package) (fields []*types.Var, tags []string) { + if n := p.int(); n > 0 { + fields = make([]*types.Var, n) + tags = make([]string, n) + for i := range fields { + fields[i], tags[i] = p.field(parent) + } + } + return +} + +func (p *importer) field(parent *types.Package) (*types.Var, string) { + pos := p.pos() + pkg, name, alias := p.fieldName(parent) + typ := p.typ(parent, nil) + tag := p.string() + + anonymous := false + if name == "" { + // anonymous field - typ must be T or *T and T must be a type name + switch typ := deref(typ).(type) { + case *types.Basic: // basic types are named types + pkg = nil // // objects defined in Universe scope have no package + name = typ.Name() + case *types.Named: + name = typ.Obj().Name() + default: + errorf("named base type expected") + } + anonymous = true + } else if alias { + // anonymous field: we have an explicit name because it's an alias + anonymous = true + } + + return types.NewField(pos, pkg, name, typ, anonymous), tag +} + +func (p *importer) methodList(parent *types.Package, baseType *types.Named) (methods []*types.Func) { + if n := p.int(); n > 0 { + methods = make([]*types.Func, n) + for i := range methods { + methods[i] = p.method(parent, baseType) + } + } + return +} + +func (p *importer) method(parent *types.Package, baseType *types.Named) *types.Func { + pos := p.pos() + pkg, name, _ := p.fieldName(parent) + // If we don't have a baseType, use a nil receiver. + // A receiver using the actual interface type (which + // we don't know yet) will be filled in when we call + // types.Interface.Complete. + var recv *types.Var + if baseType != nil { + recv = types.NewVar(token.NoPos, parent, "", baseType) + } + params, isddd := p.paramList() + result, _ := p.paramList() + sig := types.NewSignature(recv, params, result, isddd) + return types.NewFunc(pos, pkg, name, sig) +} + +func (p *importer) fieldName(parent *types.Package) (pkg *types.Package, name string, alias bool) { + name = p.string() + pkg = parent + if pkg == nil { + // use the imported package instead + pkg = p.pkgList[0] + } + if p.version == 0 && name == "_" { + // version 0 didn't export a package for _ fields + return + } + switch name { + case "": + // 1) field name matches base type name and is exported: nothing to do + case "?": + // 2) field name matches base type name and is not exported: need package + name = "" + pkg = p.pkg() + case "@": + // 3) field name doesn't match type name (alias) + name = p.string() + alias = true + fallthrough + default: + if !exported(name) { + pkg = p.pkg() + } + } + return +} + +func (p *importer) paramList() (*types.Tuple, bool) { + n := p.int() + if n == 0 { + return nil, false + } + // negative length indicates unnamed parameters + named := true + if n < 0 { + n = -n + named = false + } + // n > 0 + params := make([]*types.Var, n) + isddd := false + for i := range params { + params[i], isddd = p.param(named) + } + return types.NewTuple(params...), isddd +} + +func (p *importer) param(named bool) (*types.Var, bool) { + t := p.typ(nil, nil) + td, isddd := t.(*dddSlice) + if isddd { + t = types.NewSlice(td.elem) + } + + var pkg *types.Package + var name string + if named { + name = p.string() + if name == "" { + errorf("expected named parameter") + } + if name != "_" { + pkg = p.pkg() + } + if i := strings.Index(name, "·"); i > 0 { + name = name[:i] // cut off gc-specific parameter numbering + } + } + + // read and discard compiler-specific info + p.string() + + return types.NewVar(token.NoPos, pkg, name, t), isddd +} + +func exported(name string) bool { + ch, _ := utf8.DecodeRuneInString(name) + return unicode.IsUpper(ch) +} + +func (p *importer) value() constant.Value { + switch tag := p.tagOrIndex(); tag { + case falseTag: + return constant.MakeBool(false) + case trueTag: + return constant.MakeBool(true) + case int64Tag: + return constant.MakeInt64(p.int64()) + case floatTag: + return p.float() + case complexTag: + re := p.float() + im := p.float() + return constant.BinaryOp(re, token.ADD, constant.MakeImag(im)) + case stringTag: + return constant.MakeString(p.string()) + case unknownTag: + return constant.MakeUnknown() + default: + errorf("unexpected value tag %d", tag) // panics + panic("unreachable") + } +} + +func (p *importer) float() constant.Value { + sign := p.int() + if sign == 0 { + return constant.MakeInt64(0) + } + + exp := p.int() + mant := []byte(p.string()) // big endian + + // remove leading 0's if any + for len(mant) > 0 && mant[0] == 0 { + mant = mant[1:] + } + + // convert to little endian + // TODO(gri) go/constant should have a more direct conversion function + // (e.g., once it supports a big.Float based implementation) + for i, j := 0, len(mant)-1; i < j; i, j = i+1, j-1 { + mant[i], mant[j] = mant[j], mant[i] + } + + // adjust exponent (constant.MakeFromBytes creates an integer value, + // but mant represents the mantissa bits such that 0.5 <= mant < 1.0) + exp -= len(mant) << 3 + if len(mant) > 0 { + for msd := mant[len(mant)-1]; msd&0x80 == 0; msd <<= 1 { + exp++ + } + } + + x := constant.MakeFromBytes(mant) + switch { + case exp < 0: + d := constant.Shift(constant.MakeInt64(1), token.SHL, uint(-exp)) + x = constant.BinaryOp(x, token.QUO, d) + case exp > 0: + x = constant.Shift(x, token.SHL, uint(exp)) + } + + if sign < 0 { + x = constant.UnaryOp(token.SUB, x, 0) + } + return x +} + +// ---------------------------------------------------------------------------- +// Low-level decoders + +func (p *importer) tagOrIndex() int { + if p.debugFormat { + p.marker('t') + } + + return int(p.rawInt64()) +} + +func (p *importer) int() int { + x := p.int64() + if int64(int(x)) != x { + errorf("exported integer too large") + } + return int(x) +} + +func (p *importer) int64() int64 { + if p.debugFormat { + p.marker('i') + } + + return p.rawInt64() +} + +func (p *importer) path() string { + if p.debugFormat { + p.marker('p') + } + // if the path was seen before, i is its index (>= 0) + // (the empty string is at index 0) + i := p.rawInt64() + if i >= 0 { + return p.pathList[i] + } + // otherwise, i is the negative path length (< 0) + a := make([]string, -i) + for n := range a { + a[n] = p.string() + } + s := strings.Join(a, "/") + p.pathList = append(p.pathList, s) + return s +} + +func (p *importer) string() string { + if p.debugFormat { + p.marker('s') + } + // if the string was seen before, i is its index (>= 0) + // (the empty string is at index 0) + i := p.rawInt64() + if i >= 0 { + return p.strList[i] + } + // otherwise, i is the negative string length (< 0) + if n := int(-i); n <= cap(p.buf) { + p.buf = p.buf[:n] + } else { + p.buf = make([]byte, n) + } + for i := range p.buf { + p.buf[i] = p.rawByte() + } + s := string(p.buf) + p.strList = append(p.strList, s) + return s +} + +func (p *importer) marker(want byte) { + if got := p.rawByte(); got != want { + errorf("incorrect marker: got %c; want %c (pos = %d)", got, want, p.read) + } + + pos := p.read + if n := int(p.rawInt64()); n != pos { + errorf("incorrect position: got %d; want %d", n, pos) + } +} + +// rawInt64 should only be used by low-level decoders. +func (p *importer) rawInt64() int64 { + i, err := binary.ReadVarint(p) + if err != nil { + errorf("read error: %v", err) + } + return i +} + +// rawStringln should only be used to read the initial version string. +func (p *importer) rawStringln(b byte) string { + p.buf = p.buf[:0] + for b != '\n' { + p.buf = append(p.buf, b) + b = p.rawByte() + } + return string(p.buf) +} + +// needed for binary.ReadVarint in rawInt64 +func (p *importer) ReadByte() (byte, error) { + return p.rawByte(), nil +} + +// byte is the bottleneck interface for reading p.data. +// It unescapes '|' 'S' to '$' and '|' '|' to '|'. +// rawByte should only be used by low-level decoders. +func (p *importer) rawByte() byte { + b := p.data[0] + r := 1 + if b == '|' { + b = p.data[1] + r = 2 + switch b { + case 'S': + b = '$' + case '|': + // nothing to do + default: + errorf("unexpected escape sequence in export data") + } + } + p.data = p.data[r:] + p.read += r + return b + +} + +// ---------------------------------------------------------------------------- +// Export format + +// Tags. Must be < 0. +const ( + // Objects + packageTag = -(iota + 1) + constTag + typeTag + varTag + funcTag + endTag + + // Types + namedTag + arrayTag + sliceTag + dddTag + structTag + pointerTag + signatureTag + interfaceTag + mapTag + chanTag + + // Values + falseTag + trueTag + int64Tag + floatTag + fractionTag // not used by gc + complexTag + stringTag + nilTag // only used by gc (appears in exported inlined function bodies) + unknownTag // not used by gc (only appears in packages with errors) + + // Type aliases + aliasTag +) + +var predeclared = []types.Type{ + // basic types + types.Typ[types.Bool], + types.Typ[types.Int], + types.Typ[types.Int8], + types.Typ[types.Int16], + types.Typ[types.Int32], + types.Typ[types.Int64], + types.Typ[types.Uint], + types.Typ[types.Uint8], + types.Typ[types.Uint16], + types.Typ[types.Uint32], + types.Typ[types.Uint64], + types.Typ[types.Uintptr], + types.Typ[types.Float32], + types.Typ[types.Float64], + types.Typ[types.Complex64], + types.Typ[types.Complex128], + types.Typ[types.String], + + // basic type aliases + types.Universe.Lookup("byte").Type(), + types.Universe.Lookup("rune").Type(), + + // error + types.Universe.Lookup("error").Type(), + + // untyped types + types.Typ[types.UntypedBool], + types.Typ[types.UntypedInt], + types.Typ[types.UntypedRune], + types.Typ[types.UntypedFloat], + types.Typ[types.UntypedComplex], + types.Typ[types.UntypedString], + types.Typ[types.UntypedNil], + + // package unsafe + types.Typ[types.UnsafePointer], + + // invalid type + types.Typ[types.Invalid], // only appears in packages with errors + + // used internally by gc; never used by this package or in .a files + anyType{}, +} + +type anyType struct{} + +func (t anyType) Underlying() types.Type { return t } +func (t anyType) String() string { return "any" } diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/exportdata.go b/vendor/golang.org/x/tools/go/internal/gcimporter/exportdata.go new file mode 100644 index 00000000..f33dc561 --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/exportdata.go @@ -0,0 +1,93 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file is a copy of $GOROOT/src/go/internal/gcimporter/exportdata.go. + +// This file implements FindExportData. + +package gcimporter + +import ( + "bufio" + "fmt" + "io" + "strconv" + "strings" +) + +func readGopackHeader(r *bufio.Reader) (name string, size int, err error) { + // See $GOROOT/include/ar.h. + hdr := make([]byte, 16+12+6+6+8+10+2) + _, err = io.ReadFull(r, hdr) + if err != nil { + return + } + // leave for debugging + if false { + fmt.Printf("header: %s", hdr) + } + s := strings.TrimSpace(string(hdr[16+12+6+6+8:][:10])) + size, err = strconv.Atoi(s) + if err != nil || hdr[len(hdr)-2] != '`' || hdr[len(hdr)-1] != '\n' { + err = fmt.Errorf("invalid archive header") + return + } + name = strings.TrimSpace(string(hdr[:16])) + return +} + +// FindExportData positions the reader r at the beginning of the +// export data section of an underlying GC-created object/archive +// file by reading from it. The reader must be positioned at the +// start of the file before calling this function. The hdr result +// is the string before the export data, either "$$" or "$$B". +// +func FindExportData(r *bufio.Reader) (hdr string, err error) { + // Read first line to make sure this is an object file. + line, err := r.ReadSlice('\n') + if err != nil { + err = fmt.Errorf("can't find export data (%v)", err) + return + } + + if string(line) == "!<arch>\n" { + // Archive file. Scan to __.PKGDEF. + var name string + if name, _, err = readGopackHeader(r); err != nil { + return + } + + // First entry should be __.PKGDEF. + if name != "__.PKGDEF" { + err = fmt.Errorf("go archive is missing __.PKGDEF") + return + } + + // Read first line of __.PKGDEF data, so that line + // is once again the first line of the input. + if line, err = r.ReadSlice('\n'); err != nil { + err = fmt.Errorf("can't find export data (%v)", err) + return + } + } + + // Now at __.PKGDEF in archive or still at beginning of file. + // Either way, line should begin with "go object ". + if !strings.HasPrefix(string(line), "go object ") { + err = fmt.Errorf("not a Go object file") + return + } + + // Skip over object header to export data. + // Begins after first line starting with $$. + for line[0] != '$' { + if line, err = r.ReadSlice('\n'); err != nil { + err = fmt.Errorf("can't find export data (%v)", err) + return + } + } + hdr = string(line) + + return +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go new file mode 100644 index 00000000..47dd4613 --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go @@ -0,0 +1,1051 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file is a modified copy of $GOROOT/src/go/internal/gcimporter/gcimporter.go, +// but it also contains the original source-based importer code for Go1.6. +// Once we stop supporting 1.6, we can remove that code. + +// Package gcimporter provides various functions for reading +// gc-generated object files that can be used to implement the +// Importer interface defined by the Go 1.5 standard library package. +package gcimporter // import "golang.org/x/tools/go/internal/gcimporter" + +import ( + "bufio" + "errors" + "fmt" + "go/build" + "go/constant" + "go/token" + "go/types" + "io" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strconv" + "strings" + "text/scanner" +) + +// debugging/development support +const debug = false + +var pkgExts = [...]string{".a", ".o"} + +// FindPkg returns the filename and unique package id for an import +// path based on package information provided by build.Import (using +// the build.Default build.Context). A relative srcDir is interpreted +// relative to the current working directory. +// If no file was found, an empty filename is returned. +// +func FindPkg(path, srcDir string) (filename, id string) { + if path == "" { + return + } + + var noext string + switch { + default: + // "x" -> "$GOPATH/pkg/$GOOS_$GOARCH/x.ext", "x" + // Don't require the source files to be present. + if abs, err := filepath.Abs(srcDir); err == nil { // see issue 14282 + srcDir = abs + } + bp, _ := build.Import(path, srcDir, build.FindOnly|build.AllowBinary) + if bp.PkgObj == "" { + id = path // make sure we have an id to print in error message + return + } + noext = strings.TrimSuffix(bp.PkgObj, ".a") + id = bp.ImportPath + + case build.IsLocalImport(path): + // "./x" -> "/this/directory/x.ext", "/this/directory/x" + noext = filepath.Join(srcDir, path) + id = noext + + case filepath.IsAbs(path): + // for completeness only - go/build.Import + // does not support absolute imports + // "/x" -> "/x.ext", "/x" + noext = path + id = path + } + + if false { // for debugging + if path != id { + fmt.Printf("%s -> %s\n", path, id) + } + } + + // try extensions + for _, ext := range pkgExts { + filename = noext + ext + if f, err := os.Stat(filename); err == nil && !f.IsDir() { + return + } + } + + filename = "" // not found + return +} + +// ImportData imports a package by reading the gc-generated export data, +// adds the corresponding package object to the packages map indexed by id, +// and returns the object. +// +// The packages map must contains all packages already imported. The data +// reader position must be the beginning of the export data section. The +// filename is only used in error messages. +// +// If packages[id] contains the completely imported package, that package +// can be used directly, and there is no need to call this function (but +// there is also no harm but for extra time used). +// +func ImportData(packages map[string]*types.Package, filename, id string, data io.Reader) (pkg *types.Package, err error) { + // support for parser error handling + defer func() { + switch r := recover().(type) { + case nil: + // nothing to do + case importError: + err = r + default: + panic(r) // internal error + } + }() + + var p parser + p.init(filename, id, data, packages) + pkg = p.parseExport() + + return +} + +// Import imports a gc-generated package given its import path and srcDir, adds +// the corresponding package object to the packages map, and returns the object. +// The packages map must contain all packages already imported. +// +func Import(packages map[string]*types.Package, path, srcDir string) (pkg *types.Package, err error) { + filename, id := FindPkg(path, srcDir) + if filename == "" { + if path == "unsafe" { + return types.Unsafe, nil + } + err = fmt.Errorf("can't find import: %q", id) + return + } + + // no need to re-import if the package was imported completely before + if pkg = packages[id]; pkg != nil && pkg.Complete() { + return + } + + // open file + f, err := os.Open(filename) + if err != nil { + return + } + defer func() { + f.Close() + if err != nil { + // add file name to error + err = fmt.Errorf("reading export data: %s: %v", filename, err) + } + }() + + var hdr string + buf := bufio.NewReader(f) + if hdr, err = FindExportData(buf); err != nil { + return + } + + switch hdr { + case "$$\n": + return ImportData(packages, filename, id, buf) + + case "$$B\n": + var data []byte + data, err = ioutil.ReadAll(buf) + if err != nil { + break + } + + // TODO(gri): allow clients of go/importer to provide a FileSet. + // Or, define a new standard go/types/gcexportdata package. + fset := token.NewFileSet() + + // The indexed export format starts with an 'i'; the older + // binary export format starts with a 'c', 'd', or 'v' + // (from "version"). Select appropriate importer. + if len(data) > 0 && data[0] == 'i' { + _, pkg, err = IImportData(fset, packages, data[1:], id) + } else { + _, pkg, err = BImportData(fset, packages, data, id) + } + + default: + err = fmt.Errorf("unknown export data header: %q", hdr) + } + + return +} + +// ---------------------------------------------------------------------------- +// Parser + +// TODO(gri) Imported objects don't have position information. +// Ideally use the debug table line info; alternatively +// create some fake position (or the position of the +// import). That way error messages referring to imported +// objects can print meaningful information. + +// parser parses the exports inside a gc compiler-produced +// object/archive file and populates its scope with the results. +type parser struct { + scanner scanner.Scanner + tok rune // current token + lit string // literal string; only valid for Ident, Int, String tokens + id string // package id of imported package + sharedPkgs map[string]*types.Package // package id -> package object (across importer) + localPkgs map[string]*types.Package // package id -> package object (just this package) +} + +func (p *parser) init(filename, id string, src io.Reader, packages map[string]*types.Package) { + p.scanner.Init(src) + p.scanner.Error = func(_ *scanner.Scanner, msg string) { p.error(msg) } + p.scanner.Mode = scanner.ScanIdents | scanner.ScanInts | scanner.ScanChars | scanner.ScanStrings | scanner.ScanComments | scanner.SkipComments + p.scanner.Whitespace = 1<<'\t' | 1<<' ' + p.scanner.Filename = filename // for good error messages + p.next() + p.id = id + p.sharedPkgs = packages + if debug { + // check consistency of packages map + for _, pkg := range packages { + if pkg.Name() == "" { + fmt.Printf("no package name for %s\n", pkg.Path()) + } + } + } +} + +func (p *parser) next() { + p.tok = p.scanner.Scan() + switch p.tok { + case scanner.Ident, scanner.Int, scanner.Char, scanner.String, '·': + p.lit = p.scanner.TokenText() + default: + p.lit = "" + } + if debug { + fmt.Printf("%s: %q -> %q\n", scanner.TokenString(p.tok), p.scanner.TokenText(), p.lit) + } +} + +func declTypeName(pkg *types.Package, name string) *types.TypeName { + scope := pkg.Scope() + if obj := scope.Lookup(name); obj != nil { + return obj.(*types.TypeName) + } + obj := types.NewTypeName(token.NoPos, pkg, name, nil) + // a named type may be referred to before the underlying type + // is known - set it up + types.NewNamed(obj, nil, nil) + scope.Insert(obj) + return obj +} + +// ---------------------------------------------------------------------------- +// Error handling + +// Internal errors are boxed as importErrors. +type importError struct { + pos scanner.Position + err error +} + +func (e importError) Error() string { + return fmt.Sprintf("import error %s (byte offset = %d): %s", e.pos, e.pos.Offset, e.err) +} + +func (p *parser) error(err interface{}) { + if s, ok := err.(string); ok { + err = errors.New(s) + } + // panic with a runtime.Error if err is not an error + panic(importError{p.scanner.Pos(), err.(error)}) +} + +func (p *parser) errorf(format string, args ...interface{}) { + p.error(fmt.Sprintf(format, args...)) +} + +func (p *parser) expect(tok rune) string { + lit := p.lit + if p.tok != tok { + p.errorf("expected %s, got %s (%s)", scanner.TokenString(tok), scanner.TokenString(p.tok), lit) + } + p.next() + return lit +} + +func (p *parser) expectSpecial(tok string) { + sep := 'x' // not white space + i := 0 + for i < len(tok) && p.tok == rune(tok[i]) && sep > ' ' { + sep = p.scanner.Peek() // if sep <= ' ', there is white space before the next token + p.next() + i++ + } + if i < len(tok) { + p.errorf("expected %q, got %q", tok, tok[0:i]) + } +} + +func (p *parser) expectKeyword(keyword string) { + lit := p.expect(scanner.Ident) + if lit != keyword { + p.errorf("expected keyword %s, got %q", keyword, lit) + } +} + +// ---------------------------------------------------------------------------- +// Qualified and unqualified names + +// PackageId = string_lit . +// +func (p *parser) parsePackageId() string { + id, err := strconv.Unquote(p.expect(scanner.String)) + if err != nil { + p.error(err) + } + // id == "" stands for the imported package id + // (only known at time of package installation) + if id == "" { + id = p.id + } + return id +} + +// PackageName = ident . +// +func (p *parser) parsePackageName() string { + return p.expect(scanner.Ident) +} + +// dotIdentifier = ( ident | '·' ) { ident | int | '·' } . +func (p *parser) parseDotIdent() string { + ident := "" + if p.tok != scanner.Int { + sep := 'x' // not white space + for (p.tok == scanner.Ident || p.tok == scanner.Int || p.tok == '·') && sep > ' ' { + ident += p.lit + sep = p.scanner.Peek() // if sep <= ' ', there is white space before the next token + p.next() + } + } + if ident == "" { + p.expect(scanner.Ident) // use expect() for error handling + } + return ident +} + +// QualifiedName = "@" PackageId "." ( "?" | dotIdentifier ) . +// +func (p *parser) parseQualifiedName() (id, name string) { + p.expect('@') + id = p.parsePackageId() + p.expect('.') + // Per rev f280b8a485fd (10/2/2013), qualified names may be used for anonymous fields. + if p.tok == '?' { + p.next() + } else { + name = p.parseDotIdent() + } + return +} + +// getPkg returns the package for a given id. If the package is +// not found, create the package and add it to the p.localPkgs +// and p.sharedPkgs maps. name is the (expected) name of the +// package. If name == "", the package name is expected to be +// set later via an import clause in the export data. +// +// id identifies a package, usually by a canonical package path like +// "encoding/json" but possibly by a non-canonical import path like +// "./json". +// +func (p *parser) getPkg(id, name string) *types.Package { + // package unsafe is not in the packages maps - handle explicitly + if id == "unsafe" { + return types.Unsafe + } + + pkg := p.localPkgs[id] + if pkg == nil { + // first import of id from this package + pkg = p.sharedPkgs[id] + if pkg == nil { + // first import of id by this importer; + // add (possibly unnamed) pkg to shared packages + pkg = types.NewPackage(id, name) + p.sharedPkgs[id] = pkg + } + // add (possibly unnamed) pkg to local packages + if p.localPkgs == nil { + p.localPkgs = make(map[string]*types.Package) + } + p.localPkgs[id] = pkg + } else if name != "" { + // package exists already and we have an expected package name; + // make sure names match or set package name if necessary + if pname := pkg.Name(); pname == "" { + pkg.SetName(name) + } else if pname != name { + p.errorf("%s package name mismatch: %s (given) vs %s (expected)", id, pname, name) + } + } + return pkg +} + +// parseExportedName is like parseQualifiedName, but +// the package id is resolved to an imported *types.Package. +// +func (p *parser) parseExportedName() (pkg *types.Package, name string) { + id, name := p.parseQualifiedName() + pkg = p.getPkg(id, "") + return +} + +// ---------------------------------------------------------------------------- +// Types + +// BasicType = identifier . +// +func (p *parser) parseBasicType() types.Type { + id := p.expect(scanner.Ident) + obj := types.Universe.Lookup(id) + if obj, ok := obj.(*types.TypeName); ok { + return obj.Type() + } + p.errorf("not a basic type: %s", id) + return nil +} + +// ArrayType = "[" int_lit "]" Type . +// +func (p *parser) parseArrayType(parent *types.Package) types.Type { + // "[" already consumed and lookahead known not to be "]" + lit := p.expect(scanner.Int) + p.expect(']') + elem := p.parseType(parent) + n, err := strconv.ParseInt(lit, 10, 64) + if err != nil { + p.error(err) + } + return types.NewArray(elem, n) +} + +// MapType = "map" "[" Type "]" Type . +// +func (p *parser) parseMapType(parent *types.Package) types.Type { + p.expectKeyword("map") + p.expect('[') + key := p.parseType(parent) + p.expect(']') + elem := p.parseType(parent) + return types.NewMap(key, elem) +} + +// Name = identifier | "?" | QualifiedName . +// +// For unqualified and anonymous names, the returned package is the parent +// package unless parent == nil, in which case the returned package is the +// package being imported. (The parent package is not nil if the the name +// is an unqualified struct field or interface method name belonging to a +// type declared in another package.) +// +// For qualified names, the returned package is nil (and not created if +// it doesn't exist yet) unless materializePkg is set (which creates an +// unnamed package with valid package path). In the latter case, a +// subsequent import clause is expected to provide a name for the package. +// +func (p *parser) parseName(parent *types.Package, materializePkg bool) (pkg *types.Package, name string) { + pkg = parent + if pkg == nil { + pkg = p.sharedPkgs[p.id] + } + switch p.tok { + case scanner.Ident: + name = p.lit + p.next() + case '?': + // anonymous + p.next() + case '@': + // exported name prefixed with package path + pkg = nil + var id string + id, name = p.parseQualifiedName() + if materializePkg { + pkg = p.getPkg(id, "") + } + default: + p.error("name expected") + } + return +} + +func deref(typ types.Type) types.Type { + if p, _ := typ.(*types.Pointer); p != nil { + return p.Elem() + } + return typ +} + +// Field = Name Type [ string_lit ] . +// +func (p *parser) parseField(parent *types.Package) (*types.Var, string) { + pkg, name := p.parseName(parent, true) + + if name == "_" { + // Blank fields should be package-qualified because they + // are unexported identifiers, but gc does not qualify them. + // Assuming that the ident belongs to the current package + // causes types to change during re-exporting, leading + // to spurious "can't assign A to B" errors from go/types. + // As a workaround, pretend all blank fields belong + // to the same unique dummy package. + const blankpkg = "<_>" + pkg = p.getPkg(blankpkg, blankpkg) + } + + typ := p.parseType(parent) + anonymous := false + if name == "" { + // anonymous field - typ must be T or *T and T must be a type name + switch typ := deref(typ).(type) { + case *types.Basic: // basic types are named types + pkg = nil // objects defined in Universe scope have no package + name = typ.Name() + case *types.Named: + name = typ.Obj().Name() + default: + p.errorf("anonymous field expected") + } + anonymous = true + } + tag := "" + if p.tok == scanner.String { + s := p.expect(scanner.String) + var err error + tag, err = strconv.Unquote(s) + if err != nil { + p.errorf("invalid struct tag %s: %s", s, err) + } + } + return types.NewField(token.NoPos, pkg, name, typ, anonymous), tag +} + +// StructType = "struct" "{" [ FieldList ] "}" . +// FieldList = Field { ";" Field } . +// +func (p *parser) parseStructType(parent *types.Package) types.Type { + var fields []*types.Var + var tags []string + + p.expectKeyword("struct") + p.expect('{') + for i := 0; p.tok != '}' && p.tok != scanner.EOF; i++ { + if i > 0 { + p.expect(';') + } + fld, tag := p.parseField(parent) + if tag != "" && tags == nil { + tags = make([]string, i) + } + if tags != nil { + tags = append(tags, tag) + } + fields = append(fields, fld) + } + p.expect('}') + + return types.NewStruct(fields, tags) +} + +// Parameter = ( identifier | "?" ) [ "..." ] Type [ string_lit ] . +// +func (p *parser) parseParameter() (par *types.Var, isVariadic bool) { + _, name := p.parseName(nil, false) + // remove gc-specific parameter numbering + if i := strings.Index(name, "·"); i >= 0 { + name = name[:i] + } + if p.tok == '.' { + p.expectSpecial("...") + isVariadic = true + } + typ := p.parseType(nil) + if isVariadic { + typ = types.NewSlice(typ) + } + // ignore argument tag (e.g. "noescape") + if p.tok == scanner.String { + p.next() + } + // TODO(gri) should we provide a package? + par = types.NewVar(token.NoPos, nil, name, typ) + return +} + +// Parameters = "(" [ ParameterList ] ")" . +// ParameterList = { Parameter "," } Parameter . +// +func (p *parser) parseParameters() (list []*types.Var, isVariadic bool) { + p.expect('(') + for p.tok != ')' && p.tok != scanner.EOF { + if len(list) > 0 { + p.expect(',') + } + par, variadic := p.parseParameter() + list = append(list, par) + if variadic { + if isVariadic { + p.error("... not on final argument") + } + isVariadic = true + } + } + p.expect(')') + + return +} + +// Signature = Parameters [ Result ] . +// Result = Type | Parameters . +// +func (p *parser) parseSignature(recv *types.Var) *types.Signature { + params, isVariadic := p.parseParameters() + + // optional result type + var results []*types.Var + if p.tok == '(' { + var variadic bool + results, variadic = p.parseParameters() + if variadic { + p.error("... not permitted on result type") + } + } + + return types.NewSignature(recv, types.NewTuple(params...), types.NewTuple(results...), isVariadic) +} + +// InterfaceType = "interface" "{" [ MethodList ] "}" . +// MethodList = Method { ";" Method } . +// Method = Name Signature . +// +// The methods of embedded interfaces are always "inlined" +// by the compiler and thus embedded interfaces are never +// visible in the export data. +// +func (p *parser) parseInterfaceType(parent *types.Package) types.Type { + var methods []*types.Func + + p.expectKeyword("interface") + p.expect('{') + for i := 0; p.tok != '}' && p.tok != scanner.EOF; i++ { + if i > 0 { + p.expect(';') + } + pkg, name := p.parseName(parent, true) + sig := p.parseSignature(nil) + methods = append(methods, types.NewFunc(token.NoPos, pkg, name, sig)) + } + p.expect('}') + + // Complete requires the type's embedded interfaces to be fully defined, + // but we do not define any + return types.NewInterface(methods, nil).Complete() +} + +// ChanType = ( "chan" [ "<-" ] | "<-" "chan" ) Type . +// +func (p *parser) parseChanType(parent *types.Package) types.Type { + dir := types.SendRecv + if p.tok == scanner.Ident { + p.expectKeyword("chan") + if p.tok == '<' { + p.expectSpecial("<-") + dir = types.SendOnly + } + } else { + p.expectSpecial("<-") + p.expectKeyword("chan") + dir = types.RecvOnly + } + elem := p.parseType(parent) + return types.NewChan(dir, elem) +} + +// Type = +// BasicType | TypeName | ArrayType | SliceType | StructType | +// PointerType | FuncType | InterfaceType | MapType | ChanType | +// "(" Type ")" . +// +// BasicType = ident . +// TypeName = ExportedName . +// SliceType = "[" "]" Type . +// PointerType = "*" Type . +// FuncType = "func" Signature . +// +func (p *parser) parseType(parent *types.Package) types.Type { + switch p.tok { + case scanner.Ident: + switch p.lit { + default: + return p.parseBasicType() + case "struct": + return p.parseStructType(parent) + case "func": + // FuncType + p.next() + return p.parseSignature(nil) + case "interface": + return p.parseInterfaceType(parent) + case "map": + return p.parseMapType(parent) + case "chan": + return p.parseChanType(parent) + } + case '@': + // TypeName + pkg, name := p.parseExportedName() + return declTypeName(pkg, name).Type() + case '[': + p.next() // look ahead + if p.tok == ']' { + // SliceType + p.next() + return types.NewSlice(p.parseType(parent)) + } + return p.parseArrayType(parent) + case '*': + // PointerType + p.next() + return types.NewPointer(p.parseType(parent)) + case '<': + return p.parseChanType(parent) + case '(': + // "(" Type ")" + p.next() + typ := p.parseType(parent) + p.expect(')') + return typ + } + p.errorf("expected type, got %s (%q)", scanner.TokenString(p.tok), p.lit) + return nil +} + +// ---------------------------------------------------------------------------- +// Declarations + +// ImportDecl = "import" PackageName PackageId . +// +func (p *parser) parseImportDecl() { + p.expectKeyword("import") + name := p.parsePackageName() + p.getPkg(p.parsePackageId(), name) +} + +// int_lit = [ "+" | "-" ] { "0" ... "9" } . +// +func (p *parser) parseInt() string { + s := "" + switch p.tok { + case '-': + s = "-" + p.next() + case '+': + p.next() + } + return s + p.expect(scanner.Int) +} + +// number = int_lit [ "p" int_lit ] . +// +func (p *parser) parseNumber() (typ *types.Basic, val constant.Value) { + // mantissa + mant := constant.MakeFromLiteral(p.parseInt(), token.INT, 0) + if mant == nil { + panic("invalid mantissa") + } + + if p.lit == "p" { + // exponent (base 2) + p.next() + exp, err := strconv.ParseInt(p.parseInt(), 10, 0) + if err != nil { + p.error(err) + } + if exp < 0 { + denom := constant.MakeInt64(1) + denom = constant.Shift(denom, token.SHL, uint(-exp)) + typ = types.Typ[types.UntypedFloat] + val = constant.BinaryOp(mant, token.QUO, denom) + return + } + if exp > 0 { + mant = constant.Shift(mant, token.SHL, uint(exp)) + } + typ = types.Typ[types.UntypedFloat] + val = mant + return + } + + typ = types.Typ[types.UntypedInt] + val = mant + return +} + +// ConstDecl = "const" ExportedName [ Type ] "=" Literal . +// Literal = bool_lit | int_lit | float_lit | complex_lit | rune_lit | string_lit . +// bool_lit = "true" | "false" . +// complex_lit = "(" float_lit "+" float_lit "i" ")" . +// rune_lit = "(" int_lit "+" int_lit ")" . +// string_lit = `"` { unicode_char } `"` . +// +func (p *parser) parseConstDecl() { + p.expectKeyword("const") + pkg, name := p.parseExportedName() + + var typ0 types.Type + if p.tok != '=' { + // constant types are never structured - no need for parent type + typ0 = p.parseType(nil) + } + + p.expect('=') + var typ types.Type + var val constant.Value + switch p.tok { + case scanner.Ident: + // bool_lit + if p.lit != "true" && p.lit != "false" { + p.error("expected true or false") + } + typ = types.Typ[types.UntypedBool] + val = constant.MakeBool(p.lit == "true") + p.next() + + case '-', scanner.Int: + // int_lit + typ, val = p.parseNumber() + + case '(': + // complex_lit or rune_lit + p.next() + if p.tok == scanner.Char { + p.next() + p.expect('+') + typ = types.Typ[types.UntypedRune] + _, val = p.parseNumber() + p.expect(')') + break + } + _, re := p.parseNumber() + p.expect('+') + _, im := p.parseNumber() + p.expectKeyword("i") + p.expect(')') + typ = types.Typ[types.UntypedComplex] + val = constant.BinaryOp(re, token.ADD, constant.MakeImag(im)) + + case scanner.Char: + // rune_lit + typ = types.Typ[types.UntypedRune] + val = constant.MakeFromLiteral(p.lit, token.CHAR, 0) + p.next() + + case scanner.String: + // string_lit + typ = types.Typ[types.UntypedString] + val = constant.MakeFromLiteral(p.lit, token.STRING, 0) + p.next() + + default: + p.errorf("expected literal got %s", scanner.TokenString(p.tok)) + } + + if typ0 == nil { + typ0 = typ + } + + pkg.Scope().Insert(types.NewConst(token.NoPos, pkg, name, typ0, val)) +} + +// TypeDecl = "type" ExportedName Type . +// +func (p *parser) parseTypeDecl() { + p.expectKeyword("type") + pkg, name := p.parseExportedName() + obj := declTypeName(pkg, name) + + // The type object may have been imported before and thus already + // have a type associated with it. We still need to parse the type + // structure, but throw it away if the object already has a type. + // This ensures that all imports refer to the same type object for + // a given type declaration. + typ := p.parseType(pkg) + + if name := obj.Type().(*types.Named); name.Underlying() == nil { + name.SetUnderlying(typ) + } +} + +// VarDecl = "var" ExportedName Type . +// +func (p *parser) parseVarDecl() { + p.expectKeyword("var") + pkg, name := p.parseExportedName() + typ := p.parseType(pkg) + pkg.Scope().Insert(types.NewVar(token.NoPos, pkg, name, typ)) +} + +// Func = Signature [ Body ] . +// Body = "{" ... "}" . +// +func (p *parser) parseFunc(recv *types.Var) *types.Signature { + sig := p.parseSignature(recv) + if p.tok == '{' { + p.next() + for i := 1; i > 0; p.next() { + switch p.tok { + case '{': + i++ + case '}': + i-- + } + } + } + return sig +} + +// MethodDecl = "func" Receiver Name Func . +// Receiver = "(" ( identifier | "?" ) [ "*" ] ExportedName ")" . +// +func (p *parser) parseMethodDecl() { + // "func" already consumed + p.expect('(') + recv, _ := p.parseParameter() // receiver + p.expect(')') + + // determine receiver base type object + base := deref(recv.Type()).(*types.Named) + + // parse method name, signature, and possibly inlined body + _, name := p.parseName(nil, false) + sig := p.parseFunc(recv) + + // methods always belong to the same package as the base type object + pkg := base.Obj().Pkg() + + // add method to type unless type was imported before + // and method exists already + // TODO(gri) This leads to a quadratic algorithm - ok for now because method counts are small. + base.AddMethod(types.NewFunc(token.NoPos, pkg, name, sig)) +} + +// FuncDecl = "func" ExportedName Func . +// +func (p *parser) parseFuncDecl() { + // "func" already consumed + pkg, name := p.parseExportedName() + typ := p.parseFunc(nil) + pkg.Scope().Insert(types.NewFunc(token.NoPos, pkg, name, typ)) +} + +// Decl = [ ImportDecl | ConstDecl | TypeDecl | VarDecl | FuncDecl | MethodDecl ] "\n" . +// +func (p *parser) parseDecl() { + if p.tok == scanner.Ident { + switch p.lit { + case "import": + p.parseImportDecl() + case "const": + p.parseConstDecl() + case "type": + p.parseTypeDecl() + case "var": + p.parseVarDecl() + case "func": + p.next() // look ahead + if p.tok == '(' { + p.parseMethodDecl() + } else { + p.parseFuncDecl() + } + } + } + p.expect('\n') +} + +// ---------------------------------------------------------------------------- +// Export + +// Export = "PackageClause { Decl } "$$" . +// PackageClause = "package" PackageName [ "safe" ] "\n" . +// +func (p *parser) parseExport() *types.Package { + p.expectKeyword("package") + name := p.parsePackageName() + if p.tok == scanner.Ident && p.lit == "safe" { + // package was compiled with -u option - ignore + p.next() + } + p.expect('\n') + + pkg := p.getPkg(p.id, name) + + for p.tok != '$' && p.tok != scanner.EOF { + p.parseDecl() + } + + if ch := p.scanner.Peek(); p.tok != '$' || ch != '$' { + // don't call next()/expect() since reading past the + // export data may cause scanner errors (e.g. NUL chars) + p.errorf("expected '$$', got %s %c", scanner.TokenString(p.tok), ch) + } + + if n := p.scanner.ErrorCount; n != 0 { + p.errorf("expected no scanner errors, got %d", n) + } + + // Record all locally referenced packages as imports. + var imports []*types.Package + for id, pkg2 := range p.localPkgs { + if pkg2.Name() == "" { + p.errorf("%s package has no name", id) + } + if id == p.id { + continue // avoid self-edge + } + imports = append(imports, pkg2) + } + sort.Sort(byPath(imports)) + pkg.SetImports(imports) + + // package was imported completely and without errors + pkg.MarkComplete() + + return pkg +} + +type byPath []*types.Package + +func (a byPath) Len() int { return len(a) } +func (a byPath) Swap(i, j int) { a[i], a[j] = a[j], a[i] } +func (a byPath) Less(i, j int) bool { return a[i].Path() < a[j].Path() } diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go b/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go new file mode 100644 index 00000000..0fd22bb0 --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/iimport.go @@ -0,0 +1,598 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Indexed package import. +// See cmd/compile/internal/gc/iexport.go for the export data format. + +// This file is a copy of $GOROOT/src/go/internal/gcimporter/iimport.go. + +package gcimporter + +import ( + "bytes" + "encoding/binary" + "fmt" + "go/constant" + "go/token" + "go/types" + "io" + "sort" +) + +type intReader struct { + *bytes.Reader + path string +} + +func (r *intReader) int64() int64 { + i, err := binary.ReadVarint(r.Reader) + if err != nil { + errorf("import %q: read varint error: %v", r.path, err) + } + return i +} + +func (r *intReader) uint64() uint64 { + i, err := binary.ReadUvarint(r.Reader) + if err != nil { + errorf("import %q: read varint error: %v", r.path, err) + } + return i +} + +const predeclReserved = 32 + +type itag uint64 + +const ( + // Types + definedType itag = iota + pointerType + sliceType + arrayType + chanType + mapType + signatureType + structType + interfaceType +) + +// IImportData imports a package from the serialized package data +// and returns the number of bytes consumed and a reference to the package. +// If the export data version is not recognized or the format is otherwise +// compromised, an error is returned. +func IImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) { + const currentVersion = 0 + version := -1 + defer func() { + if e := recover(); e != nil { + if version > currentVersion { + err = fmt.Errorf("cannot import %q (%v), export data is newer version - update tool", path, e) + } else { + err = fmt.Errorf("cannot import %q (%v), possibly version skew - reinstall package", path, e) + } + } + }() + + r := &intReader{bytes.NewReader(data), path} + + version = int(r.uint64()) + switch version { + case currentVersion: + default: + errorf("unknown iexport format version %d", version) + } + + sLen := int64(r.uint64()) + dLen := int64(r.uint64()) + + whence, _ := r.Seek(0, io.SeekCurrent) + stringData := data[whence : whence+sLen] + declData := data[whence+sLen : whence+sLen+dLen] + r.Seek(sLen+dLen, io.SeekCurrent) + + p := iimporter{ + ipath: path, + + stringData: stringData, + stringCache: make(map[uint64]string), + pkgCache: make(map[uint64]*types.Package), + + declData: declData, + pkgIndex: make(map[*types.Package]map[string]uint64), + typCache: make(map[uint64]types.Type), + + fake: fakeFileSet{ + fset: fset, + files: make(map[string]*token.File), + }, + } + + for i, pt := range predeclared { + p.typCache[uint64(i)] = pt + } + + pkgList := make([]*types.Package, r.uint64()) + for i := range pkgList { + pkgPathOff := r.uint64() + pkgPath := p.stringAt(pkgPathOff) + pkgName := p.stringAt(r.uint64()) + _ = r.uint64() // package height; unused by go/types + + if pkgPath == "" { + pkgPath = path + } + pkg := imports[pkgPath] + if pkg == nil { + pkg = types.NewPackage(pkgPath, pkgName) + imports[pkgPath] = pkg + } else if pkg.Name() != pkgName { + errorf("conflicting names %s and %s for package %q", pkg.Name(), pkgName, path) + } + + p.pkgCache[pkgPathOff] = pkg + + nameIndex := make(map[string]uint64) + for nSyms := r.uint64(); nSyms > 0; nSyms-- { + name := p.stringAt(r.uint64()) + nameIndex[name] = r.uint64() + } + + p.pkgIndex[pkg] = nameIndex + pkgList[i] = pkg + } + + localpkg := pkgList[0] + + names := make([]string, 0, len(p.pkgIndex[localpkg])) + for name := range p.pkgIndex[localpkg] { + names = append(names, name) + } + sort.Strings(names) + for _, name := range names { + p.doDecl(localpkg, name) + } + + for _, typ := range p.interfaceList { + typ.Complete() + } + + // record all referenced packages as imports + list := append(([]*types.Package)(nil), pkgList[1:]...) + sort.Sort(byPath(list)) + localpkg.SetImports(list) + + // package was imported completely and without errors + localpkg.MarkComplete() + + consumed, _ := r.Seek(0, io.SeekCurrent) + return int(consumed), localpkg, nil +} + +type iimporter struct { + ipath string + + stringData []byte + stringCache map[uint64]string + pkgCache map[uint64]*types.Package + + declData []byte + pkgIndex map[*types.Package]map[string]uint64 + typCache map[uint64]types.Type + + fake fakeFileSet + interfaceList []*types.Interface +} + +func (p *iimporter) doDecl(pkg *types.Package, name string) { + // See if we've already imported this declaration. + if obj := pkg.Scope().Lookup(name); obj != nil { + return + } + + off, ok := p.pkgIndex[pkg][name] + if !ok { + errorf("%v.%v not in index", pkg, name) + } + + r := &importReader{p: p, currPkg: pkg} + r.declReader.Reset(p.declData[off:]) + + r.obj(name) +} + +func (p *iimporter) stringAt(off uint64) string { + if s, ok := p.stringCache[off]; ok { + return s + } + + slen, n := binary.Uvarint(p.stringData[off:]) + if n <= 0 { + errorf("varint failed") + } + spos := off + uint64(n) + s := string(p.stringData[spos : spos+slen]) + p.stringCache[off] = s + return s +} + +func (p *iimporter) pkgAt(off uint64) *types.Package { + if pkg, ok := p.pkgCache[off]; ok { + return pkg + } + path := p.stringAt(off) + errorf("missing package %q in %q", path, p.ipath) + return nil +} + +func (p *iimporter) typAt(off uint64, base *types.Named) types.Type { + if t, ok := p.typCache[off]; ok && (base == nil || !isInterface(t)) { + return t + } + + if off < predeclReserved { + errorf("predeclared type missing from cache: %v", off) + } + + r := &importReader{p: p} + r.declReader.Reset(p.declData[off-predeclReserved:]) + t := r.doType(base) + + if base == nil || !isInterface(t) { + p.typCache[off] = t + } + return t +} + +type importReader struct { + p *iimporter + declReader bytes.Reader + currPkg *types.Package + prevFile string + prevLine int64 +} + +func (r *importReader) obj(name string) { + tag := r.byte() + pos := r.pos() + + switch tag { + case 'A': + typ := r.typ() + + r.declare(types.NewTypeName(pos, r.currPkg, name, typ)) + + case 'C': + typ, val := r.value() + + r.declare(types.NewConst(pos, r.currPkg, name, typ, val)) + + case 'F': + sig := r.signature(nil) + + r.declare(types.NewFunc(pos, r.currPkg, name, sig)) + + case 'T': + // Types can be recursive. We need to setup a stub + // declaration before recursing. + obj := types.NewTypeName(pos, r.currPkg, name, nil) + named := types.NewNamed(obj, nil, nil) + r.declare(obj) + + underlying := r.p.typAt(r.uint64(), named).Underlying() + named.SetUnderlying(underlying) + + if !isInterface(underlying) { + for n := r.uint64(); n > 0; n-- { + mpos := r.pos() + mname := r.ident() + recv := r.param() + msig := r.signature(recv) + + named.AddMethod(types.NewFunc(mpos, r.currPkg, mname, msig)) + } + } + + case 'V': + typ := r.typ() + + r.declare(types.NewVar(pos, r.currPkg, name, typ)) + + default: + errorf("unexpected tag: %v", tag) + } +} + +func (r *importReader) declare(obj types.Object) { + obj.Pkg().Scope().Insert(obj) +} + +func (r *importReader) value() (typ types.Type, val constant.Value) { + typ = r.typ() + + switch b := typ.Underlying().(*types.Basic); b.Info() & types.IsConstType { + case types.IsBoolean: + val = constant.MakeBool(r.bool()) + + case types.IsString: + val = constant.MakeString(r.string()) + + case types.IsInteger: + val = r.mpint(b) + + case types.IsFloat: + val = r.mpfloat(b) + + case types.IsComplex: + re := r.mpfloat(b) + im := r.mpfloat(b) + val = constant.BinaryOp(re, token.ADD, constant.MakeImag(im)) + + default: + errorf("unexpected type %v", typ) // panics + panic("unreachable") + } + + return +} + +func intSize(b *types.Basic) (signed bool, maxBytes uint) { + if (b.Info() & types.IsUntyped) != 0 { + return true, 64 + } + + switch b.Kind() { + case types.Float32, types.Complex64: + return true, 3 + case types.Float64, types.Complex128: + return true, 7 + } + + signed = (b.Info() & types.IsUnsigned) == 0 + switch b.Kind() { + case types.Int8, types.Uint8: + maxBytes = 1 + case types.Int16, types.Uint16: + maxBytes = 2 + case types.Int32, types.Uint32: + maxBytes = 4 + default: + maxBytes = 8 + } + + return +} + +func (r *importReader) mpint(b *types.Basic) constant.Value { + signed, maxBytes := intSize(b) + + maxSmall := 256 - maxBytes + if signed { + maxSmall = 256 - 2*maxBytes + } + if maxBytes == 1 { + maxSmall = 256 + } + + n, _ := r.declReader.ReadByte() + if uint(n) < maxSmall { + v := int64(n) + if signed { + v >>= 1 + if n&1 != 0 { + v = ^v + } + } + return constant.MakeInt64(v) + } + + v := -n + if signed { + v = -(n &^ 1) >> 1 + } + if v < 1 || uint(v) > maxBytes { + errorf("weird decoding: %v, %v => %v", n, signed, v) + } + + buf := make([]byte, v) + io.ReadFull(&r.declReader, buf) + + // convert to little endian + // TODO(gri) go/constant should have a more direct conversion function + // (e.g., once it supports a big.Float based implementation) + for i, j := 0, len(buf)-1; i < j; i, j = i+1, j-1 { + buf[i], buf[j] = buf[j], buf[i] + } + + x := constant.MakeFromBytes(buf) + if signed && n&1 != 0 { + x = constant.UnaryOp(token.SUB, x, 0) + } + return x +} + +func (r *importReader) mpfloat(b *types.Basic) constant.Value { + x := r.mpint(b) + if constant.Sign(x) == 0 { + return x + } + + exp := r.int64() + switch { + case exp > 0: + x = constant.Shift(x, token.SHL, uint(exp)) + case exp < 0: + d := constant.Shift(constant.MakeInt64(1), token.SHL, uint(-exp)) + x = constant.BinaryOp(x, token.QUO, d) + } + return x +} + +func (r *importReader) ident() string { + return r.string() +} + +func (r *importReader) qualifiedIdent() (*types.Package, string) { + name := r.string() + pkg := r.pkg() + return pkg, name +} + +func (r *importReader) pos() token.Pos { + delta := r.int64() + if delta != deltaNewFile { + r.prevLine += delta + } else if l := r.int64(); l == -1 { + r.prevLine += deltaNewFile + } else { + r.prevFile = r.string() + r.prevLine = l + } + + if r.prevFile == "" && r.prevLine == 0 { + return token.NoPos + } + + return r.p.fake.pos(r.prevFile, int(r.prevLine)) +} + +func (r *importReader) typ() types.Type { + return r.p.typAt(r.uint64(), nil) +} + +func isInterface(t types.Type) bool { + _, ok := t.(*types.Interface) + return ok +} + +func (r *importReader) pkg() *types.Package { return r.p.pkgAt(r.uint64()) } +func (r *importReader) string() string { return r.p.stringAt(r.uint64()) } + +func (r *importReader) doType(base *types.Named) types.Type { + switch k := r.kind(); k { + default: + errorf("unexpected kind tag in %q: %v", r.p.ipath, k) + return nil + + case definedType: + pkg, name := r.qualifiedIdent() + r.p.doDecl(pkg, name) + return pkg.Scope().Lookup(name).(*types.TypeName).Type() + case pointerType: + return types.NewPointer(r.typ()) + case sliceType: + return types.NewSlice(r.typ()) + case arrayType: + n := r.uint64() + return types.NewArray(r.typ(), int64(n)) + case chanType: + dir := chanDir(int(r.uint64())) + return types.NewChan(dir, r.typ()) + case mapType: + return types.NewMap(r.typ(), r.typ()) + case signatureType: + r.currPkg = r.pkg() + return r.signature(nil) + + case structType: + r.currPkg = r.pkg() + + fields := make([]*types.Var, r.uint64()) + tags := make([]string, len(fields)) + for i := range fields { + fpos := r.pos() + fname := r.ident() + ftyp := r.typ() + emb := r.bool() + tag := r.string() + + fields[i] = types.NewField(fpos, r.currPkg, fname, ftyp, emb) + tags[i] = tag + } + return types.NewStruct(fields, tags) + + case interfaceType: + r.currPkg = r.pkg() + + embeddeds := make([]types.Type, r.uint64()) + for i := range embeddeds { + _ = r.pos() + embeddeds[i] = r.typ() + } + + methods := make([]*types.Func, r.uint64()) + for i := range methods { + mpos := r.pos() + mname := r.ident() + + // TODO(mdempsky): Matches bimport.go, but I + // don't agree with this. + var recv *types.Var + if base != nil { + recv = types.NewVar(token.NoPos, r.currPkg, "", base) + } + + msig := r.signature(recv) + methods[i] = types.NewFunc(mpos, r.currPkg, mname, msig) + } + + typ := newInterface(methods, embeddeds) + r.p.interfaceList = append(r.p.interfaceList, typ) + return typ + } +} + +func (r *importReader) kind() itag { + return itag(r.uint64()) +} + +func (r *importReader) signature(recv *types.Var) *types.Signature { + params := r.paramList() + results := r.paramList() + variadic := params.Len() > 0 && r.bool() + return types.NewSignature(recv, params, results, variadic) +} + +func (r *importReader) paramList() *types.Tuple { + xs := make([]*types.Var, r.uint64()) + for i := range xs { + xs[i] = r.param() + } + return types.NewTuple(xs...) +} + +func (r *importReader) param() *types.Var { + pos := r.pos() + name := r.ident() + typ := r.typ() + return types.NewParam(pos, r.currPkg, name, typ) +} + +func (r *importReader) bool() bool { + return r.uint64() != 0 +} + +func (r *importReader) int64() int64 { + n, err := binary.ReadVarint(&r.declReader) + if err != nil { + errorf("readVarint: %v", err) + } + return n +} + +func (r *importReader) uint64() uint64 { + n, err := binary.ReadUvarint(&r.declReader) + if err != nil { + errorf("readUvarint: %v", err) + } + return n +} + +func (r *importReader) byte() byte { + x, err := r.declReader.ReadByte() + if err != nil { + errorf("declReader.ReadByte: %v", err) + } + return x +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias18.go b/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias18.go new file mode 100644 index 00000000..225ffeed --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias18.go @@ -0,0 +1,13 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !go1.9 + +package gcimporter + +import "go/types" + +func isAlias(obj *types.TypeName) bool { + return false // there are no type aliases before Go 1.9 +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias19.go b/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias19.go new file mode 100644 index 00000000..c2025d84 --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/isAlias19.go @@ -0,0 +1,13 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build go1.9 + +package gcimporter + +import "go/types" + +func isAlias(obj *types.TypeName) bool { + return obj.IsAlias() +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface10.go b/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface10.go new file mode 100644 index 00000000..463f2522 --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface10.go @@ -0,0 +1,21 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build !go1.11 + +package gcimporter + +import "go/types" + +func newInterface(methods []*types.Func, embeddeds []types.Type) *types.Interface { + named := make([]*types.Named, len(embeddeds)) + for i, e := range embeddeds { + var ok bool + named[i], ok = e.(*types.Named) + if !ok { + panic("embedding of non-defined interfaces in interfaces is not supported before Go 1.11") + } + } + return types.NewInterface(methods, named) +} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface11.go b/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface11.go new file mode 100644 index 00000000..ab28b95c --- /dev/null +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/newInterface11.go @@ -0,0 +1,13 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build go1.11 + +package gcimporter + +import "go/types" + +func newInterface(methods []*types.Func, embeddeds []types.Type) *types.Interface { + return types.NewInterfaceType(methods, embeddeds) +} diff --git a/vendor/golang.org/x/tools/go/loader/doc.go b/vendor/golang.org/x/tools/go/loader/doc.go deleted file mode 100644 index 9b51c9ec..00000000 --- a/vendor/golang.org/x/tools/go/loader/doc.go +++ /dev/null @@ -1,205 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package loader loads a complete Go program from source code, parsing -// and type-checking the initial packages plus their transitive closure -// of dependencies. The ASTs and the derived facts are retained for -// later use. -// -// THIS INTERFACE IS EXPERIMENTAL AND IS LIKELY TO CHANGE. -// -// The package defines two primary types: Config, which specifies a -// set of initial packages to load and various other options; and -// Program, which is the result of successfully loading the packages -// specified by a configuration. -// -// The configuration can be set directly, but *Config provides various -// convenience methods to simplify the common cases, each of which can -// be called any number of times. Finally, these are followed by a -// call to Load() to actually load and type-check the program. -// -// var conf loader.Config -// -// // Use the command-line arguments to specify -// // a set of initial packages to load from source. -// // See FromArgsUsage for help. -// rest, err := conf.FromArgs(os.Args[1:], wantTests) -// -// // Parse the specified files and create an ad hoc package with path "foo". -// // All files must have the same 'package' declaration. -// conf.CreateFromFilenames("foo", "foo.go", "bar.go") -// -// // Create an ad hoc package with path "foo" from -// // the specified already-parsed files. -// // All ASTs must have the same 'package' declaration. -// conf.CreateFromFiles("foo", parsedFiles) -// -// // Add "runtime" to the set of packages to be loaded. -// conf.Import("runtime") -// -// // Adds "fmt" and "fmt_test" to the set of packages -// // to be loaded. "fmt" will include *_test.go files. -// conf.ImportWithTests("fmt") -// -// // Finally, load all the packages specified by the configuration. -// prog, err := conf.Load() -// -// See examples_test.go for examples of API usage. -// -// -// CONCEPTS AND TERMINOLOGY -// -// The WORKSPACE is the set of packages accessible to the loader. The -// workspace is defined by Config.Build, a *build.Context. The -// default context treats subdirectories of $GOROOT and $GOPATH as -// packages, but this behavior may be overridden. -// -// An AD HOC package is one specified as a set of source files on the -// command line. In the simplest case, it may consist of a single file -// such as $GOROOT/src/net/http/triv.go. -// -// EXTERNAL TEST packages are those comprised of a set of *_test.go -// files all with the same 'package foo_test' declaration, all in the -// same directory. (go/build.Package calls these files XTestFiles.) -// -// An IMPORTABLE package is one that can be referred to by some import -// spec. Every importable package is uniquely identified by its -// PACKAGE PATH or just PATH, a string such as "fmt", "encoding/json", -// or "cmd/vendor/golang.org/x/arch/x86/x86asm". A package path -// typically denotes a subdirectory of the workspace. -// -// An import declaration uses an IMPORT PATH to refer to a package. -// Most import declarations use the package path as the import path. -// -// Due to VENDORING (https://golang.org/s/go15vendor), the -// interpretation of an import path may depend on the directory in which -// it appears. To resolve an import path to a package path, go/build -// must search the enclosing directories for a subdirectory named -// "vendor". -// -// ad hoc packages and external test packages are NON-IMPORTABLE. The -// path of an ad hoc package is inferred from the package -// declarations of its files and is therefore not a unique package key. -// For example, Config.CreatePkgs may specify two initial ad hoc -// packages, both with path "main". -// -// An AUGMENTED package is an importable package P plus all the -// *_test.go files with same 'package foo' declaration as P. -// (go/build.Package calls these files TestFiles.) -// -// The INITIAL packages are those specified in the configuration. A -// DEPENDENCY is a package loaded to satisfy an import in an initial -// package or another dependency. -// -package loader - -// IMPLEMENTATION NOTES -// -// 'go test', in-package test files, and import cycles -// --------------------------------------------------- -// -// An external test package may depend upon members of the augmented -// package that are not in the unaugmented package, such as functions -// that expose internals. (See bufio/export_test.go for an example.) -// So, the loader must ensure that for each external test package -// it loads, it also augments the corresponding non-test package. -// -// The import graph over n unaugmented packages must be acyclic; the -// import graph over n-1 unaugmented packages plus one augmented -// package must also be acyclic. ('go test' relies on this.) But the -// import graph over n augmented packages may contain cycles. -// -// First, all the (unaugmented) non-test packages and their -// dependencies are imported in the usual way; the loader reports an -// error if it detects an import cycle. -// -// Then, each package P for which testing is desired is augmented by -// the list P' of its in-package test files, by calling -// (*types.Checker).Files. This arrangement ensures that P' may -// reference definitions within P, but P may not reference definitions -// within P'. Furthermore, P' may import any other package, including -// ones that depend upon P, without an import cycle error. -// -// Consider two packages A and B, both of which have lists of -// in-package test files we'll call A' and B', and which have the -// following import graph edges: -// B imports A -// B' imports A -// A' imports B -// This last edge would be expected to create an error were it not -// for the special type-checking discipline above. -// Cycles of size greater than two are possible. For example: -// compress/bzip2/bzip2_test.go (package bzip2) imports "io/ioutil" -// io/ioutil/tempfile_test.go (package ioutil) imports "regexp" -// regexp/exec_test.go (package regexp) imports "compress/bzip2" -// -// -// Concurrency -// ----------- -// -// Let us define the import dependency graph as follows. Each node is a -// list of files passed to (Checker).Files at once. Many of these lists -// are the production code of an importable Go package, so those nodes -// are labelled by the package's path. The remaining nodes are -// ad hoc packages and lists of in-package *_test.go files that augment -// an importable package; those nodes have no label. -// -// The edges of the graph represent import statements appearing within a -// file. An edge connects a node (a list of files) to the node it -// imports, which is importable and thus always labelled. -// -// Loading is controlled by this dependency graph. -// -// To reduce I/O latency, we start loading a package's dependencies -// asynchronously as soon as we've parsed its files and enumerated its -// imports (scanImports). This performs a preorder traversal of the -// import dependency graph. -// -// To exploit hardware parallelism, we type-check unrelated packages in -// parallel, where "unrelated" means not ordered by the partial order of -// the import dependency graph. -// -// We use a concurrency-safe non-blocking cache (importer.imported) to -// record the results of type-checking, whether success or failure. An -// entry is created in this cache by startLoad the first time the -// package is imported. The first goroutine to request an entry becomes -// responsible for completing the task and broadcasting completion to -// subsequent requestors, which block until then. -// -// Type checking occurs in (parallel) postorder: we cannot type-check a -// set of files until we have loaded and type-checked all of their -// immediate dependencies (and thus all of their transitive -// dependencies). If the input were guaranteed free of import cycles, -// this would be trivial: we could simply wait for completion of the -// dependencies and then invoke the typechecker. -// -// But as we saw in the 'go test' section above, some cycles in the -// import graph over packages are actually legal, so long as the -// cycle-forming edge originates in the in-package test files that -// augment the package. This explains why the nodes of the import -// dependency graph are not packages, but lists of files: the unlabelled -// nodes avoid the cycles. Consider packages A and B where B imports A -// and A's in-package tests AT import B. The naively constructed import -// graph over packages would contain a cycle (A+AT) --> B --> (A+AT) but -// the graph over lists of files is AT --> B --> A, where AT is an -// unlabelled node. -// -// Awaiting completion of the dependencies in a cyclic graph would -// deadlock, so we must materialize the import dependency graph (as -// importer.graph) and check whether each import edge forms a cycle. If -// x imports y, and the graph already contains a path from y to x, then -// there is an import cycle, in which case the processing of x must not -// wait for the completion of processing of y. -// -// When the type-checker makes a callback (doImport) to the loader for a -// given import edge, there are two possible cases. In the normal case, -// the dependency has already been completely type-checked; doImport -// does a cache lookup and returns it. In the cyclic case, the entry in -// the cache is still necessarily incomplete, indicating a cycle. We -// perform the cycle check again to obtain the error message, and return -// the error. -// -// The result of using concurrency is about a 2.5x speedup for stdlib_test. - -// TODO(adonovan): overhaul the package documentation. diff --git a/vendor/golang.org/x/tools/go/loader/loader.go b/vendor/golang.org/x/tools/go/loader/loader.go deleted file mode 100644 index c4566611..00000000 --- a/vendor/golang.org/x/tools/go/loader/loader.go +++ /dev/null @@ -1,1078 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package loader - -// See doc.go for package documentation and implementation notes. - -import ( - "errors" - "fmt" - "go/ast" - "go/build" - "go/parser" - "go/token" - "go/types" - "os" - "path/filepath" - "sort" - "strings" - "sync" - "time" - - "golang.org/x/tools/go/ast/astutil" - "golang.org/x/tools/go/internal/cgo" -) - -var ignoreVendor build.ImportMode - -const trace = false // show timing info for type-checking - -// Config specifies the configuration for loading a whole program from -// Go source code. -// The zero value for Config is a ready-to-use default configuration. -type Config struct { - // Fset is the file set for the parser to use when loading the - // program. If nil, it may be lazily initialized by any - // method of Config. - Fset *token.FileSet - - // ParserMode specifies the mode to be used by the parser when - // loading source packages. - ParserMode parser.Mode - - // TypeChecker contains options relating to the type checker. - // - // The supplied IgnoreFuncBodies is not used; the effective - // value comes from the TypeCheckFuncBodies func below. - // The supplied Import function is not used either. - TypeChecker types.Config - - // TypeCheckFuncBodies is a predicate over package paths. - // A package for which the predicate is false will - // have its package-level declarations type checked, but not - // its function bodies; this can be used to quickly load - // dependencies from source. If nil, all func bodies are type - // checked. - TypeCheckFuncBodies func(path string) bool - - // If Build is non-nil, it is used to locate source packages. - // Otherwise &build.Default is used. - // - // By default, cgo is invoked to preprocess Go files that - // import the fake package "C". This behaviour can be - // disabled by setting CGO_ENABLED=0 in the environment prior - // to startup, or by setting Build.CgoEnabled=false. - Build *build.Context - - // The current directory, used for resolving relative package - // references such as "./go/loader". If empty, os.Getwd will be - // used instead. - Cwd string - - // If DisplayPath is non-nil, it is used to transform each - // file name obtained from Build.Import(). This can be used - // to prevent a virtualized build.Config's file names from - // leaking into the user interface. - DisplayPath func(path string) string - - // If AllowErrors is true, Load will return a Program even - // if some of the its packages contained I/O, parser or type - // errors; such errors are accessible via PackageInfo.Errors. If - // false, Load will fail if any package had an error. - AllowErrors bool - - // CreatePkgs specifies a list of non-importable initial - // packages to create. The resulting packages will appear in - // the corresponding elements of the Program.Created slice. - CreatePkgs []PkgSpec - - // ImportPkgs specifies a set of initial packages to load. - // The map keys are package paths. - // - // The map value indicates whether to load tests. If true, Load - // will add and type-check two lists of files to the package: - // non-test files followed by in-package *_test.go files. In - // addition, it will append the external test package (if any) - // to Program.Created. - ImportPkgs map[string]bool - - // FindPackage is called during Load to create the build.Package - // for a given import path from a given directory. - // If FindPackage is nil, (*build.Context).Import is used. - // A client may use this hook to adapt to a proprietary build - // system that does not follow the "go build" layout - // conventions, for example. - // - // It must be safe to call concurrently from multiple goroutines. - FindPackage func(ctxt *build.Context, importPath, fromDir string, mode build.ImportMode) (*build.Package, error) - - // AfterTypeCheck is called immediately after a list of files - // has been type-checked and appended to info.Files. - // - // This optional hook function is the earliest opportunity for - // the client to observe the output of the type checker, - // which may be useful to reduce analysis latency when loading - // a large program. - // - // The function is permitted to modify info.Info, for instance - // to clear data structures that are no longer needed, which can - // dramatically reduce peak memory consumption. - // - // The function may be called twice for the same PackageInfo: - // once for the files of the package and again for the - // in-package test files. - // - // It must be safe to call concurrently from multiple goroutines. - AfterTypeCheck func(info *PackageInfo, files []*ast.File) -} - -// A PkgSpec specifies a non-importable package to be created by Load. -// Files are processed first, but typically only one of Files and -// Filenames is provided. The path needn't be globally unique. -// -// For vendoring purposes, the package's directory is the one that -// contains the first file. -type PkgSpec struct { - Path string // package path ("" => use package declaration) - Files []*ast.File // ASTs of already-parsed files - Filenames []string // names of files to be parsed -} - -// A Program is a Go program loaded from source as specified by a Config. -type Program struct { - Fset *token.FileSet // the file set for this program - - // Created[i] contains the initial package whose ASTs or - // filenames were supplied by Config.CreatePkgs[i], followed by - // the external test package, if any, of each package in - // Config.ImportPkgs ordered by ImportPath. - // - // NOTE: these files must not import "C". Cgo preprocessing is - // only performed on imported packages, not ad hoc packages. - // - // TODO(adonovan): we need to copy and adapt the logic of - // goFilesPackage (from $GOROOT/src/cmd/go/build.go) and make - // Config.Import and Config.Create methods return the same kind - // of entity, essentially a build.Package. - // Perhaps we can even reuse that type directly. - Created []*PackageInfo - - // Imported contains the initially imported packages, - // as specified by Config.ImportPkgs. - Imported map[string]*PackageInfo - - // AllPackages contains the PackageInfo of every package - // encountered by Load: all initial packages and all - // dependencies, including incomplete ones. - AllPackages map[*types.Package]*PackageInfo - - // importMap is the canonical mapping of package paths to - // packages. It contains all Imported initial packages, but not - // Created ones, and all imported dependencies. - importMap map[string]*types.Package -} - -// PackageInfo holds the ASTs and facts derived by the type-checker -// for a single package. -// -// Not mutated once exposed via the API. -// -type PackageInfo struct { - Pkg *types.Package - Importable bool // true if 'import "Pkg.Path()"' would resolve to this - TransitivelyErrorFree bool // true if Pkg and all its dependencies are free of errors - Files []*ast.File // syntax trees for the package's files - Errors []error // non-nil if the package had errors - types.Info // type-checker deductions. - dir string // package directory - - checker *types.Checker // transient type-checker state - errorFunc func(error) -} - -func (info *PackageInfo) String() string { return info.Pkg.Path() } - -func (info *PackageInfo) appendError(err error) { - if info.errorFunc != nil { - info.errorFunc(err) - } else { - fmt.Fprintln(os.Stderr, err) - } - info.Errors = append(info.Errors, err) -} - -func (conf *Config) fset() *token.FileSet { - if conf.Fset == nil { - conf.Fset = token.NewFileSet() - } - return conf.Fset -} - -// ParseFile is a convenience function (intended for testing) that invokes -// the parser using the Config's FileSet, which is initialized if nil. -// -// src specifies the parser input as a string, []byte, or io.Reader, and -// filename is its apparent name. If src is nil, the contents of -// filename are read from the file system. -// -func (conf *Config) ParseFile(filename string, src interface{}) (*ast.File, error) { - // TODO(adonovan): use conf.build() etc like parseFiles does. - return parser.ParseFile(conf.fset(), filename, src, conf.ParserMode) -} - -// FromArgsUsage is a partial usage message that applications calling -// FromArgs may wish to include in their -help output. -const FromArgsUsage = ` -<args> is a list of arguments denoting a set of initial packages. -It may take one of two forms: - -1. A list of *.go source files. - - All of the specified files are loaded, parsed and type-checked - as a single package. All the files must belong to the same directory. - -2. A list of import paths, each denoting a package. - - The package's directory is found relative to the $GOROOT and - $GOPATH using similar logic to 'go build', and the *.go files in - that directory are loaded, parsed and type-checked as a single - package. - - In addition, all *_test.go files in the directory are then loaded - and parsed. Those files whose package declaration equals that of - the non-*_test.go files are included in the primary package. Test - files whose package declaration ends with "_test" are type-checked - as another package, the 'external' test package, so that a single - import path may denote two packages. (Whether this behaviour is - enabled is tool-specific, and may depend on additional flags.) - -A '--' argument terminates the list of packages. -` - -// FromArgs interprets args as a set of initial packages to load from -// source and updates the configuration. It returns the list of -// unconsumed arguments. -// -// It is intended for use in command-line interfaces that require a -// set of initial packages to be specified; see FromArgsUsage message -// for details. -// -// Only superficial errors are reported at this stage; errors dependent -// on I/O are detected during Load. -// -func (conf *Config) FromArgs(args []string, xtest bool) ([]string, error) { - var rest []string - for i, arg := range args { - if arg == "--" { - rest = args[i+1:] - args = args[:i] - break // consume "--" and return the remaining args - } - } - - if len(args) > 0 && strings.HasSuffix(args[0], ".go") { - // Assume args is a list of a *.go files - // denoting a single ad hoc package. - for _, arg := range args { - if !strings.HasSuffix(arg, ".go") { - return nil, fmt.Errorf("named files must be .go files: %s", arg) - } - } - conf.CreateFromFilenames("", args...) - } else { - // Assume args are directories each denoting a - // package and (perhaps) an external test, iff xtest. - for _, arg := range args { - if xtest { - conf.ImportWithTests(arg) - } else { - conf.Import(arg) - } - } - } - - return rest, nil -} - -// CreateFromFilenames is a convenience function that adds -// a conf.CreatePkgs entry to create a package of the specified *.go -// files. -// -func (conf *Config) CreateFromFilenames(path string, filenames ...string) { - conf.CreatePkgs = append(conf.CreatePkgs, PkgSpec{Path: path, Filenames: filenames}) -} - -// CreateFromFiles is a convenience function that adds a conf.CreatePkgs -// entry to create package of the specified path and parsed files. -// -func (conf *Config) CreateFromFiles(path string, files ...*ast.File) { - conf.CreatePkgs = append(conf.CreatePkgs, PkgSpec{Path: path, Files: files}) -} - -// ImportWithTests is a convenience function that adds path to -// ImportPkgs, the set of initial source packages located relative to -// $GOPATH. The package will be augmented by any *_test.go files in -// its directory that contain a "package x" (not "package x_test") -// declaration. -// -// In addition, if any *_test.go files contain a "package x_test" -// declaration, an additional package comprising just those files will -// be added to CreatePkgs. -// -func (conf *Config) ImportWithTests(path string) { conf.addImport(path, true) } - -// Import is a convenience function that adds path to ImportPkgs, the -// set of initial packages that will be imported from source. -// -func (conf *Config) Import(path string) { conf.addImport(path, false) } - -func (conf *Config) addImport(path string, tests bool) { - if path == "C" { - return // ignore; not a real package - } - if conf.ImportPkgs == nil { - conf.ImportPkgs = make(map[string]bool) - } - conf.ImportPkgs[path] = conf.ImportPkgs[path] || tests -} - -// PathEnclosingInterval returns the PackageInfo and ast.Node that -// contain source interval [start, end), and all the node's ancestors -// up to the AST root. It searches all ast.Files of all packages in prog. -// exact is defined as for astutil.PathEnclosingInterval. -// -// The zero value is returned if not found. -// -func (prog *Program) PathEnclosingInterval(start, end token.Pos) (pkg *PackageInfo, path []ast.Node, exact bool) { - for _, info := range prog.AllPackages { - for _, f := range info.Files { - if f.Pos() == token.NoPos { - // This can happen if the parser saw - // too many errors and bailed out. - // (Use parser.AllErrors to prevent that.) - continue - } - if !tokenFileContainsPos(prog.Fset.File(f.Pos()), start) { - continue - } - if path, exact := astutil.PathEnclosingInterval(f, start, end); path != nil { - return info, path, exact - } - } - } - return nil, nil, false -} - -// InitialPackages returns a new slice containing the set of initial -// packages (Created + Imported) in unspecified order. -// -func (prog *Program) InitialPackages() []*PackageInfo { - infos := make([]*PackageInfo, 0, len(prog.Created)+len(prog.Imported)) - infos = append(infos, prog.Created...) - for _, info := range prog.Imported { - infos = append(infos, info) - } - return infos -} - -// Package returns the ASTs and results of type checking for the -// specified package. -func (prog *Program) Package(path string) *PackageInfo { - if info, ok := prog.AllPackages[prog.importMap[path]]; ok { - return info - } - for _, info := range prog.Created { - if path == info.Pkg.Path() { - return info - } - } - return nil -} - -// ---------- Implementation ---------- - -// importer holds the working state of the algorithm. -type importer struct { - conf *Config // the client configuration - start time.Time // for logging - - progMu sync.Mutex // guards prog - prog *Program // the resulting program - - // findpkg is a memoization of FindPackage. - findpkgMu sync.Mutex // guards findpkg - findpkg map[findpkgKey]*findpkgValue - - importedMu sync.Mutex // guards imported - imported map[string]*importInfo // all imported packages (incl. failures) by import path - - // import dependency graph: graph[x][y] => x imports y - // - // Since non-importable packages cannot be cyclic, we ignore - // their imports, thus we only need the subgraph over importable - // packages. Nodes are identified by their import paths. - graphMu sync.Mutex - graph map[string]map[string]bool -} - -type findpkgKey struct { - importPath string - fromDir string - mode build.ImportMode -} - -type findpkgValue struct { - ready chan struct{} // closed to broadcast readiness - bp *build.Package - err error -} - -// importInfo tracks the success or failure of a single import. -// -// Upon completion, exactly one of info and err is non-nil: -// info on successful creation of a package, err otherwise. -// A successful package may still contain type errors. -// -type importInfo struct { - path string // import path - info *PackageInfo // results of typechecking (including errors) - complete chan struct{} // closed to broadcast that info is set. -} - -// awaitCompletion blocks until ii is complete, -// i.e. the info field is safe to inspect. -func (ii *importInfo) awaitCompletion() { - <-ii.complete // wait for close -} - -// Complete marks ii as complete. -// Its info and err fields will not be subsequently updated. -func (ii *importInfo) Complete(info *PackageInfo) { - if info == nil { - panic("info == nil") - } - ii.info = info - close(ii.complete) -} - -type importError struct { - path string // import path - err error // reason for failure to create a package -} - -// Load creates the initial packages specified by conf.{Create,Import}Pkgs, -// loading their dependencies packages as needed. -// -// On success, Load returns a Program containing a PackageInfo for -// each package. On failure, it returns an error. -// -// If AllowErrors is true, Load will return a Program even if some -// packages contained I/O, parser or type errors, or if dependencies -// were missing. (Such errors are accessible via PackageInfo.Errors. If -// false, Load will fail if any package had an error. -// -// It is an error if no packages were loaded. -// -func (conf *Config) Load() (*Program, error) { - // Create a simple default error handler for parse/type errors. - if conf.TypeChecker.Error == nil { - conf.TypeChecker.Error = func(e error) { fmt.Fprintln(os.Stderr, e) } - } - - // Set default working directory for relative package references. - if conf.Cwd == "" { - var err error - conf.Cwd, err = os.Getwd() - if err != nil { - return nil, err - } - } - - // Install default FindPackage hook using go/build logic. - if conf.FindPackage == nil { - conf.FindPackage = (*build.Context).Import - } - - prog := &Program{ - Fset: conf.fset(), - Imported: make(map[string]*PackageInfo), - importMap: make(map[string]*types.Package), - AllPackages: make(map[*types.Package]*PackageInfo), - } - - imp := importer{ - conf: conf, - prog: prog, - findpkg: make(map[findpkgKey]*findpkgValue), - imported: make(map[string]*importInfo), - start: time.Now(), - graph: make(map[string]map[string]bool), - } - - // -- loading proper (concurrent phase) -------------------------------- - - var errpkgs []string // packages that contained errors - - // Load the initially imported packages and their dependencies, - // in parallel. - // No vendor check on packages imported from the command line. - infos, importErrors := imp.importAll("", conf.Cwd, conf.ImportPkgs, ignoreVendor) - for _, ie := range importErrors { - conf.TypeChecker.Error(ie.err) // failed to create package - errpkgs = append(errpkgs, ie.path) - } - for _, info := range infos { - prog.Imported[info.Pkg.Path()] = info - } - - // Augment the designated initial packages by their tests. - // Dependencies are loaded in parallel. - var xtestPkgs []*build.Package - for importPath, augment := range conf.ImportPkgs { - if !augment { - continue - } - - // No vendor check on packages imported from command line. - bp, err := imp.findPackage(importPath, conf.Cwd, ignoreVendor) - if err != nil { - // Package not found, or can't even parse package declaration. - // Already reported by previous loop; ignore it. - continue - } - - // Needs external test package? - if len(bp.XTestGoFiles) > 0 { - xtestPkgs = append(xtestPkgs, bp) - } - - // Consult the cache using the canonical package path. - path := bp.ImportPath - imp.importedMu.Lock() // (unnecessary, we're sequential here) - ii, ok := imp.imported[path] - // Paranoid checks added due to issue #11012. - if !ok { - // Unreachable. - // The previous loop called importAll and thus - // startLoad for each path in ImportPkgs, which - // populates imp.imported[path] with a non-zero value. - panic(fmt.Sprintf("imported[%q] not found", path)) - } - if ii == nil { - // Unreachable. - // The ii values in this loop are the same as in - // the previous loop, which enforced the invariant - // that at least one of ii.err and ii.info is non-nil. - panic(fmt.Sprintf("imported[%q] == nil", path)) - } - if ii.info == nil { - // Unreachable. - // awaitCompletion has the postcondition - // ii.info != nil. - panic(fmt.Sprintf("imported[%q].info = nil", path)) - } - info := ii.info - imp.importedMu.Unlock() - - // Parse the in-package test files. - files, errs := imp.conf.parsePackageFiles(bp, 't') - for _, err := range errs { - info.appendError(err) - } - - // The test files augmenting package P cannot be imported, - // but may import packages that import P, - // so we must disable the cycle check. - imp.addFiles(info, files, false) - } - - createPkg := func(path, dir string, files []*ast.File, errs []error) { - info := imp.newPackageInfo(path, dir) - for _, err := range errs { - info.appendError(err) - } - - // Ad hoc packages are non-importable, - // so no cycle check is needed. - // addFiles loads dependencies in parallel. - imp.addFiles(info, files, false) - prog.Created = append(prog.Created, info) - } - - // Create packages specified by conf.CreatePkgs. - for _, cp := range conf.CreatePkgs { - files, errs := parseFiles(conf.fset(), conf.build(), nil, conf.Cwd, cp.Filenames, conf.ParserMode) - files = append(files, cp.Files...) - - path := cp.Path - if path == "" { - if len(files) > 0 { - path = files[0].Name.Name - } else { - path = "(unnamed)" - } - } - - dir := conf.Cwd - if len(files) > 0 && files[0].Pos().IsValid() { - dir = filepath.Dir(conf.fset().File(files[0].Pos()).Name()) - } - createPkg(path, dir, files, errs) - } - - // Create external test packages. - sort.Sort(byImportPath(xtestPkgs)) - for _, bp := range xtestPkgs { - files, errs := imp.conf.parsePackageFiles(bp, 'x') - createPkg(bp.ImportPath+"_test", bp.Dir, files, errs) - } - - // -- finishing up (sequential) ---------------------------------------- - - if len(prog.Imported)+len(prog.Created) == 0 { - return nil, errors.New("no initial packages were loaded") - } - - // Create infos for indirectly imported packages. - // e.g. incomplete packages without syntax, loaded from export data. - for _, obj := range prog.importMap { - info := prog.AllPackages[obj] - if info == nil { - prog.AllPackages[obj] = &PackageInfo{Pkg: obj, Importable: true} - } else { - // finished - info.checker = nil - info.errorFunc = nil - } - } - - if !conf.AllowErrors { - // Report errors in indirectly imported packages. - for _, info := range prog.AllPackages { - if len(info.Errors) > 0 { - errpkgs = append(errpkgs, info.Pkg.Path()) - } - } - if errpkgs != nil { - var more string - if len(errpkgs) > 3 { - more = fmt.Sprintf(" and %d more", len(errpkgs)-3) - errpkgs = errpkgs[:3] - } - return nil, fmt.Errorf("couldn't load packages due to errors: %s%s", - strings.Join(errpkgs, ", "), more) - } - } - - markErrorFreePackages(prog.AllPackages) - - return prog, nil -} - -type byImportPath []*build.Package - -func (b byImportPath) Len() int { return len(b) } -func (b byImportPath) Less(i, j int) bool { return b[i].ImportPath < b[j].ImportPath } -func (b byImportPath) Swap(i, j int) { b[i], b[j] = b[j], b[i] } - -// markErrorFreePackages sets the TransitivelyErrorFree flag on all -// applicable packages. -func markErrorFreePackages(allPackages map[*types.Package]*PackageInfo) { - // Build the transpose of the import graph. - importedBy := make(map[*types.Package]map[*types.Package]bool) - for P := range allPackages { - for _, Q := range P.Imports() { - clients, ok := importedBy[Q] - if !ok { - clients = make(map[*types.Package]bool) - importedBy[Q] = clients - } - clients[P] = true - } - } - - // Find all packages reachable from some error package. - reachable := make(map[*types.Package]bool) - var visit func(*types.Package) - visit = func(p *types.Package) { - if !reachable[p] { - reachable[p] = true - for q := range importedBy[p] { - visit(q) - } - } - } - for _, info := range allPackages { - if len(info.Errors) > 0 { - visit(info.Pkg) - } - } - - // Mark the others as "transitively error-free". - for _, info := range allPackages { - if !reachable[info.Pkg] { - info.TransitivelyErrorFree = true - } - } -} - -// build returns the effective build context. -func (conf *Config) build() *build.Context { - if conf.Build != nil { - return conf.Build - } - return &build.Default -} - -// parsePackageFiles enumerates the files belonging to package path, -// then loads, parses and returns them, plus a list of I/O or parse -// errors that were encountered. -// -// 'which' indicates which files to include: -// 'g': include non-test *.go source files (GoFiles + processed CgoFiles) -// 't': include in-package *_test.go source files (TestGoFiles) -// 'x': include external *_test.go source files. (XTestGoFiles) -// -func (conf *Config) parsePackageFiles(bp *build.Package, which rune) ([]*ast.File, []error) { - if bp.ImportPath == "unsafe" { - return nil, nil - } - var filenames []string - switch which { - case 'g': - filenames = bp.GoFiles - case 't': - filenames = bp.TestGoFiles - case 'x': - filenames = bp.XTestGoFiles - default: - panic(which) - } - - files, errs := parseFiles(conf.fset(), conf.build(), conf.DisplayPath, bp.Dir, filenames, conf.ParserMode) - - // Preprocess CgoFiles and parse the outputs (sequentially). - if which == 'g' && bp.CgoFiles != nil { - cgofiles, err := cgo.ProcessFiles(bp, conf.fset(), conf.DisplayPath, conf.ParserMode) - if err != nil { - errs = append(errs, err) - } else { - files = append(files, cgofiles...) - } - } - - return files, errs -} - -// doImport imports the package denoted by path. -// It implements the types.Importer signature. -// -// It returns an error if a package could not be created -// (e.g. go/build or parse error), but type errors are reported via -// the types.Config.Error callback (the first of which is also saved -// in the package's PackageInfo). -// -// Idempotent. -// -func (imp *importer) doImport(from *PackageInfo, to string) (*types.Package, error) { - if to == "C" { - // This should be unreachable, but ad hoc packages are - // not currently subject to cgo preprocessing. - // See https://github.com/golang/go/issues/11627. - return nil, fmt.Errorf(`the loader doesn't cgo-process ad hoc packages like %q; see Go issue 11627`, - from.Pkg.Path()) - } - - bp, err := imp.findPackage(to, from.dir, 0) - if err != nil { - return nil, err - } - - // The standard unsafe package is handled specially, - // and has no PackageInfo. - if bp.ImportPath == "unsafe" { - return types.Unsafe, nil - } - - // Look for the package in the cache using its canonical path. - path := bp.ImportPath - imp.importedMu.Lock() - ii := imp.imported[path] - imp.importedMu.Unlock() - if ii == nil { - panic("internal error: unexpected import: " + path) - } - if ii.info != nil { - return ii.info.Pkg, nil - } - - // Import of incomplete package: this indicates a cycle. - fromPath := from.Pkg.Path() - if cycle := imp.findPath(path, fromPath); cycle != nil { - cycle = append([]string{fromPath}, cycle...) - return nil, fmt.Errorf("import cycle: %s", strings.Join(cycle, " -> ")) - } - - panic("internal error: import of incomplete (yet acyclic) package: " + fromPath) -} - -// findPackage locates the package denoted by the importPath in the -// specified directory. -func (imp *importer) findPackage(importPath, fromDir string, mode build.ImportMode) (*build.Package, error) { - // We use a non-blocking duplicate-suppressing cache (gopl.io §9.7) - // to avoid holding the lock around FindPackage. - key := findpkgKey{importPath, fromDir, mode} - imp.findpkgMu.Lock() - v, ok := imp.findpkg[key] - if ok { - // cache hit - imp.findpkgMu.Unlock() - - <-v.ready // wait for entry to become ready - } else { - // Cache miss: this goroutine becomes responsible for - // populating the map entry and broadcasting its readiness. - v = &findpkgValue{ready: make(chan struct{})} - imp.findpkg[key] = v - imp.findpkgMu.Unlock() - - ioLimit <- true - v.bp, v.err = imp.conf.FindPackage(imp.conf.build(), importPath, fromDir, mode) - <-ioLimit - - if _, ok := v.err.(*build.NoGoError); ok { - v.err = nil // empty directory is not an error - } - - close(v.ready) // broadcast ready condition - } - return v.bp, v.err -} - -// importAll loads, parses, and type-checks the specified packages in -// parallel and returns their completed importInfos in unspecified order. -// -// fromPath is the package path of the importing package, if it is -// importable, "" otherwise. It is used for cycle detection. -// -// fromDir is the directory containing the import declaration that -// caused these imports. -// -func (imp *importer) importAll(fromPath, fromDir string, imports map[string]bool, mode build.ImportMode) (infos []*PackageInfo, errors []importError) { - // TODO(adonovan): opt: do the loop in parallel once - // findPackage is non-blocking. - var pending []*importInfo - for importPath := range imports { - bp, err := imp.findPackage(importPath, fromDir, mode) - if err != nil { - errors = append(errors, importError{ - path: importPath, - err: err, - }) - continue - } - pending = append(pending, imp.startLoad(bp)) - } - - if fromPath != "" { - // We're loading a set of imports. - // - // We must record graph edges from the importing package - // to its dependencies, and check for cycles. - imp.graphMu.Lock() - deps, ok := imp.graph[fromPath] - if !ok { - deps = make(map[string]bool) - imp.graph[fromPath] = deps - } - for _, ii := range pending { - deps[ii.path] = true - } - imp.graphMu.Unlock() - } - - for _, ii := range pending { - if fromPath != "" { - if cycle := imp.findPath(ii.path, fromPath); cycle != nil { - // Cycle-forming import: we must not await its - // completion since it would deadlock. - // - // We don't record the error in ii since - // the error is really associated with the - // cycle-forming edge, not the package itself. - // (Also it would complicate the - // invariants of importPath completion.) - if trace { - fmt.Fprintf(os.Stderr, "import cycle: %q\n", cycle) - } - continue - } - } - ii.awaitCompletion() - infos = append(infos, ii.info) - } - - return infos, errors -} - -// findPath returns an arbitrary path from 'from' to 'to' in the import -// graph, or nil if there was none. -func (imp *importer) findPath(from, to string) []string { - imp.graphMu.Lock() - defer imp.graphMu.Unlock() - - seen := make(map[string]bool) - var search func(stack []string, importPath string) []string - search = func(stack []string, importPath string) []string { - if !seen[importPath] { - seen[importPath] = true - stack = append(stack, importPath) - if importPath == to { - return stack - } - for x := range imp.graph[importPath] { - if p := search(stack, x); p != nil { - return p - } - } - } - return nil - } - return search(make([]string, 0, 20), from) -} - -// startLoad initiates the loading, parsing and type-checking of the -// specified package and its dependencies, if it has not already begun. -// -// It returns an importInfo, not necessarily in a completed state. The -// caller must call awaitCompletion() before accessing its info field. -// -// startLoad is concurrency-safe and idempotent. -// -func (imp *importer) startLoad(bp *build.Package) *importInfo { - path := bp.ImportPath - imp.importedMu.Lock() - ii, ok := imp.imported[path] - if !ok { - ii = &importInfo{path: path, complete: make(chan struct{})} - imp.imported[path] = ii - go func() { - info := imp.load(bp) - ii.Complete(info) - }() - } - imp.importedMu.Unlock() - - return ii -} - -// load implements package loading by parsing Go source files -// located by go/build. -func (imp *importer) load(bp *build.Package) *PackageInfo { - info := imp.newPackageInfo(bp.ImportPath, bp.Dir) - info.Importable = true - files, errs := imp.conf.parsePackageFiles(bp, 'g') - for _, err := range errs { - info.appendError(err) - } - - imp.addFiles(info, files, true) - - imp.progMu.Lock() - imp.prog.importMap[bp.ImportPath] = info.Pkg - imp.progMu.Unlock() - - return info -} - -// addFiles adds and type-checks the specified files to info, loading -// their dependencies if needed. The order of files determines the -// package initialization order. It may be called multiple times on the -// same package. Errors are appended to the info.Errors field. -// -// cycleCheck determines whether the imports within files create -// dependency edges that should be checked for potential cycles. -// -func (imp *importer) addFiles(info *PackageInfo, files []*ast.File, cycleCheck bool) { - // Ensure the dependencies are loaded, in parallel. - var fromPath string - if cycleCheck { - fromPath = info.Pkg.Path() - } - // TODO(adonovan): opt: make the caller do scanImports. - // Callers with a build.Package can skip it. - imp.importAll(fromPath, info.dir, scanImports(files), 0) - - if trace { - fmt.Fprintf(os.Stderr, "%s: start %q (%d)\n", - time.Since(imp.start), info.Pkg.Path(), len(files)) - } - - // Don't call checker.Files on Unsafe, even with zero files, - // because it would mutate the package, which is a global. - if info.Pkg == types.Unsafe { - if len(files) > 0 { - panic(`"unsafe" package contains unexpected files`) - } - } else { - // Ignore the returned (first) error since we - // already collect them all in the PackageInfo. - info.checker.Files(files) - info.Files = append(info.Files, files...) - } - - if imp.conf.AfterTypeCheck != nil { - imp.conf.AfterTypeCheck(info, files) - } - - if trace { - fmt.Fprintf(os.Stderr, "%s: stop %q\n", - time.Since(imp.start), info.Pkg.Path()) - } -} - -func (imp *importer) newPackageInfo(path, dir string) *PackageInfo { - var pkg *types.Package - if path == "unsafe" { - pkg = types.Unsafe - } else { - pkg = types.NewPackage(path, "") - } - info := &PackageInfo{ - Pkg: pkg, - Info: types.Info{ - Types: make(map[ast.Expr]types.TypeAndValue), - Defs: make(map[*ast.Ident]types.Object), - Uses: make(map[*ast.Ident]types.Object), - Implicits: make(map[ast.Node]types.Object), - Scopes: make(map[ast.Node]*types.Scope), - Selections: make(map[*ast.SelectorExpr]*types.Selection), - }, - errorFunc: imp.conf.TypeChecker.Error, - dir: dir, - } - - // Copy the types.Config so we can vary it across PackageInfos. - tc := imp.conf.TypeChecker - tc.IgnoreFuncBodies = false - if f := imp.conf.TypeCheckFuncBodies; f != nil { - tc.IgnoreFuncBodies = !f(path) - } - tc.Importer = closure{imp, info} - tc.Error = info.appendError // appendError wraps the user's Error function - - info.checker = types.NewChecker(&tc, imp.conf.fset(), pkg, &info.Info) - imp.progMu.Lock() - imp.prog.AllPackages[pkg] = info - imp.progMu.Unlock() - return info -} - -type closure struct { - imp *importer - info *PackageInfo -} - -func (c closure) Import(to string) (*types.Package, error) { return c.imp.doImport(c.info, to) } diff --git a/vendor/golang.org/x/tools/go/loader/util.go b/vendor/golang.org/x/tools/go/loader/util.go deleted file mode 100644 index 7f38dd74..00000000 --- a/vendor/golang.org/x/tools/go/loader/util.go +++ /dev/null @@ -1,124 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package loader - -import ( - "go/ast" - "go/build" - "go/parser" - "go/token" - "io" - "os" - "strconv" - "sync" - - "golang.org/x/tools/go/buildutil" -) - -// We use a counting semaphore to limit -// the number of parallel I/O calls per process. -var ioLimit = make(chan bool, 10) - -// parseFiles parses the Go source files within directory dir and -// returns the ASTs of the ones that could be at least partially parsed, -// along with a list of I/O and parse errors encountered. -// -// I/O is done via ctxt, which may specify a virtual file system. -// displayPath is used to transform the filenames attached to the ASTs. -// -func parseFiles(fset *token.FileSet, ctxt *build.Context, displayPath func(string) string, dir string, files []string, mode parser.Mode) ([]*ast.File, []error) { - if displayPath == nil { - displayPath = func(path string) string { return path } - } - var wg sync.WaitGroup - n := len(files) - parsed := make([]*ast.File, n) - errors := make([]error, n) - for i, file := range files { - if !buildutil.IsAbsPath(ctxt, file) { - file = buildutil.JoinPath(ctxt, dir, file) - } - wg.Add(1) - go func(i int, file string) { - ioLimit <- true // wait - defer func() { - wg.Done() - <-ioLimit // signal - }() - var rd io.ReadCloser - var err error - if ctxt.OpenFile != nil { - rd, err = ctxt.OpenFile(file) - } else { - rd, err = os.Open(file) - } - if err != nil { - errors[i] = err // open failed - return - } - - // ParseFile may return both an AST and an error. - parsed[i], errors[i] = parser.ParseFile(fset, displayPath(file), rd, mode) - rd.Close() - }(i, file) - } - wg.Wait() - - // Eliminate nils, preserving order. - var o int - for _, f := range parsed { - if f != nil { - parsed[o] = f - o++ - } - } - parsed = parsed[:o] - - o = 0 - for _, err := range errors { - if err != nil { - errors[o] = err - o++ - } - } - errors = errors[:o] - - return parsed, errors -} - -// scanImports returns the set of all import paths from all -// import specs in the specified files. -func scanImports(files []*ast.File) map[string]bool { - imports := make(map[string]bool) - for _, f := range files { - for _, decl := range f.Decls { - if decl, ok := decl.(*ast.GenDecl); ok && decl.Tok == token.IMPORT { - for _, spec := range decl.Specs { - spec := spec.(*ast.ImportSpec) - - // NB: do not assume the program is well-formed! - path, err := strconv.Unquote(spec.Path.Value) - if err != nil { - continue // quietly ignore the error - } - if path == "C" { - continue // skip pseudopackage - } - imports[path] = true - } - } - } - } - return imports -} - -// ---------- Internal helpers ---------- - -// TODO(adonovan): make this a method: func (*token.File) Contains(token.Pos) -func tokenFileContainsPos(f *token.File, pos token.Pos) bool { - p := int(pos) - base := f.Base() - return base <= p && p < base+f.Size() -} diff --git a/vendor/golang.org/x/tools/go/packages/doc.go b/vendor/golang.org/x/tools/go/packages/doc.go new file mode 100644 index 00000000..4f5a1a14 --- /dev/null +++ b/vendor/golang.org/x/tools/go/packages/doc.go @@ -0,0 +1,269 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +/* +Package packages loads Go packages for inspection and analysis. + +NOTE: THIS PACKAGE IS NOT YET READY FOR WIDESPREAD USE: + - The interface is still being revised and is likely to change. + - The implementation depends on the Go 1.11 go command. + - We intend to finalize the API before Go 1.11 is released. + +The Load function takes as input a list of patterns and return a list of Package +structs describing individual packages matched by those patterns. +The LoadMode controls the amounts of detail about the loaded packages. + +The patterns are used as arguments to the underlying build tool, +such as the go command or Bazel, and are interpreted according to +that tool's conventions. + +The Package struct provides basic information about the package, including + + - ID, a unique identifier for the package in the returned set; + - GoFiles, the names of the package's Go source files; + - Imports, a map from source import strings to the Packages they name; + - Types, the type information for the package's exported symbols; + - Syntax, the parsed syntax trees for the package's source code; and + - TypeInfo, the result of a complete type-check of the package syntax trees. + +(See the documentation for type Package for the complete list of fields +and more detailed descriptions.) + +For example, + + Load(nil, "bytes", "unicode...") + +returns four Package structs describing the standard library packages +bytes, unicode, unicode/utf16, and unicode/utf8. Note that one pattern +can match multiple packages and that a package might be matched by +multiple patterns: in general it is not possible to determine which +packages correspond to which patterns. + +Note that the list returned by Load (LoadAllSyntax in this case) +only contains the packages matched by the patterns. Their dependencies +can be found by walking the import graph using the Imports fields. + +The Load function can be configured by passing a non-nil Config struct as +the first argument. If you pass nil for the Config Load will +run in LoadAllSyntax mode, collecting the maximal amount of information +it can. +See the documentation for type Config for details. + +As noted earlier, the Config.Mode controls increasing amounts of detail +about the loaded packages, with each mode returning all the data of the +previous mode with some extra added. See the documentation for type LoadMode +for details. + +Most tools should pass their command-line arguments (after any flags) +uninterpreted to the loader, so that the loader can interpret them +according to the conventions of the underlying build system. +For example, this program prints the names of the source files +for each package listed on the command line: + + package main + + import ( + "flag" + "fmt" + "log" + + "golang.org/x/tools/go/packages" + ) + + func main() { + flag.Parse() + pkgs, err := packages.Load(nil, flag.Args()...) + if err != nil { + log.Fatal(err) + } + for _, pkg := range pkgs { + fmt.Print(pkg.ID, pkg.GoFiles) + } + } +*/ +package packages // import "golang.org/x/tools/go/packages" + +/* + +Motivation and design considerations + +The new package's design solves problems addressed by two existing +packages: go/build, which locates and describes packages, and +golang.org/x/tools/go/loader, which loads, parses and type-checks them. +The go/build.Package structure encodes too much of the 'go build' way +of organizing projects, leaving us in need of a data type that describes a +package of Go source code independent of the underlying build system. +We wanted something that works equally well with go build and vgo, and +also other build systems such as Bazel and Blaze, making it possible to +construct analysis tools that work in all these environments. +Tools such as errcheck and staticcheck were essentially unavailable to +the Go community at Google, and some of Google's internal tools for Go +are unavailable externally. +This new package provides a uniform way to obtain package metadata by +querying each of these build systems, optionally supporting their +preferred command-line notations for packages, so that tools integrate +neatly with users' build environments. The Metadata query function +executes an external query tool appropriate to the current workspace. + +Loading packages always returns the complete import graph "all the way down", +even if all you want is information about a single package, because the query +mechanisms of all the build systems we currently support ({go,vgo} list, and +blaze/bazel aspect-based query) cannot provide detailed information +about one package without visiting all its dependencies too, so there is +no additional asymptotic cost to providing transitive information. +(This property might not be true of a hypothetical 5th build system.) + +This package provides no parse-but-don't-typecheck operation because most tools +that need only untyped syntax (such as gofmt, goimports, and golint) +seem not to care about any files other than the ones they are directly +instructed to look at. Also, it is trivial for a client to supplement +this functionality on top of a Metadata query. + +In calls to TypeCheck, all initial packages, and any package that +transitively depends on one of them, must be loaded from source. +Consider A->B->C->D->E: if A,C are initial, A,B,C must be loaded from +source; D may be loaded from export data, and E may not be loaded at all +(though it's possible that D's export data mentions it, so a +types.Package may be created for it and exposed.) + +The old loader had a feature to suppress type-checking of function +bodies on a per-package basis, primarily intended to reduce the work of +obtaining type information for imported packages. Now that imports are +satisfied by export data, the optimization no longer seems necessary. + +Despite some early attempts, the old loader did not exploit export data, +instead always using the equivalent of WholeProgram mode. This was due +to the complexity of mixing source and export data packages (now +resolved by the upward traversal mentioned above), and because export data +files were nearly always missing or stale. Now that 'go build' supports +caching, all the underlying build systems can guarantee to produce +export data in a reasonable (amortized) time. + +Test "main" packages synthesized by the build system are now reported as +first-class packages, avoiding the need for clients (such as go/ssa) to +reinvent this generation logic. + +One way in which go/packages is simpler than the old loader is in its +treatment of in-package tests. In-package tests are packages that +consist of all the files of the library under test, plus the test files. +The old loader constructed in-package tests by a two-phase process of +mutation called "augmentation": first it would construct and type check +all the ordinary library packages and type-check the packages that +depend on them; then it would add more (test) files to the package and +type-check again. This two-phase approach had four major problems: +1) in processing the tests, the loader modified the library package, + leaving no way for a client application to see both the test + package and the library package; one would mutate into the other. +2) because test files can declare additional methods on types defined in + the library portion of the package, the dispatch of method calls in + the library portion was affected by the presence of the test files. + This should have been a clue that the packages were logically + different. +3) this model of "augmentation" assumed at most one in-package test + per library package, which is true of projects using 'go build', + but not other build systems. +4) because of the two-phase nature of test processing, all packages that + import the library package had to be processed before augmentation, + forcing a "one-shot" API and preventing the client from calling Load + in several times in sequence as is now possible in WholeProgram mode. + (TypeCheck mode has a similar one-shot restriction for a different reason.) + +Early drafts of this package supported "multi-shot" operation +in the Metadata and WholeProgram modes, although this feature is not exposed +through the API and will likely be removed. +Although it allowed clients to make a sequence of calls (or concurrent +calls) to Load, building up the graph of Packages incrementally, +it was of marginal value: it complicated the API +(since it allowed some options to vary across calls but not others), +it complicated the implementation, +it cannot be made to work in TypeCheck mode, as explained above, +and it was less efficient than making one combined call (when this is possible). +Among the clients we have inspected, none made multiple calls to load +but could not be easily and satisfactorily modified to make only a single call. +However, applications changes may be required. +For example, the ssadump command loads the user-specified packages +and in addition the runtime package. It is tempting to simply append +"runtime" to the user-provided list, but that does not work if the user +specified an ad-hoc package such as [a.go b.go]. +Instead, ssadump no longer requests the runtime package, +but seeks it among the dependencies of the user-specified packages, +and emits an error if it is not found. + +Overlays: the ParseFile hook in the API permits clients to vary the way +in which ASTs are obtained from filenames; the default implementation is +based on parser.ParseFile. This features enables editor-integrated tools +that analyze the contents of modified but unsaved buffers: rather than +read from the file system, a tool can read from an archive of modified +buffers provided by the editor. +This approach has its limits. Because package metadata is obtained by +fork/execing an external query command for each build system, we can +fake only the file contents seen by the parser, type-checker, and +application, but not by the metadata query, so, for example: +- additional imports in the fake file will not be described by the + metadata, so the type checker will fail to load imports that create + new dependencies. +- in TypeCheck mode, because export data is produced by the query + command, it will not reflect the fake file contents. +- this mechanism cannot add files to a package without first saving them. + +Questions & Tasks + +- Add GOARCH/GOOS? + They are not portable concepts, but could be made portable. + Our goal has been to allow users to express themselves using the conventions + of the underlying build system: if the build system honors GOARCH + during a build and during a metadata query, then so should + applications built atop that query mechanism. + Conversely, if the target architecture of the build is determined by + command-line flags, the application can pass the relevant + flags through to the build system using a command such as: + myapp -query_flag="--cpu=amd64" -query_flag="--os=darwin" + However, this approach is low-level, unwieldy, and non-portable. + GOOS and GOARCH seem important enough to warrant a dedicated option. + +- How should we handle partial failures such as a mixture of good and + malformed patterns, existing and non-existent packages, successful and + failed builds, import failures, import cycles, and so on, in a call to + Load? + +- Do we need a GeneratedBy map that maps the name of each generated Go + source file in GoFiles to that of the original file, if known, or "" otherwise? + Or are //line directives and "Generated" comments in those files enough? + +- Support bazel, blaze, and go1.10 list, not just go1.11 list. + +- Handle (and test) various partial success cases, e.g. + a mixture of good packages and: + invalid patterns + nonexistent packages + empty packages + packages with malformed package or import declarations + unreadable files + import cycles + other parse errors + type errors + Make sure we record errors at the correct place in the graph. + +- Missing packages among initial arguments are not reported. + Return bogus packages for them, like golist does. + +- "undeclared name" errors (for example) are reported out of source file + order. I suspect this is due to the breadth-first resolution now used + by go/types. Is that a bug? Discuss with gri. + +- https://github.com/golang/go/issues/25980 causes these commands to crash: + $ GOPATH=/none ./gopackages -all all + due to: + $ GOPATH=/none go list -e -test -json all + and: + $ go list -e -test ./relative/path + +- Modify stringer to use go/packages, perhaps initially under flag control. + +- Bug: "gopackages fmt a.go" doesn't produce an error. + +- If necessary, add back an IsTest boolean or expose ForTests on the Package struct. + IsTest was removed because we couldn't agree on a useful definition. + +*/ diff --git a/vendor/golang.org/x/tools/go/packages/external.go b/vendor/golang.org/x/tools/go/packages/external.go new file mode 100644 index 00000000..39e5ed99 --- /dev/null +++ b/vendor/golang.org/x/tools/go/packages/external.go @@ -0,0 +1,68 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file enables an external tool to intercept package requests. +// If the tool is present then its results are used in preference to +// the go list command. + +package packages + +import ( + "bytes" + "encoding/json" + "fmt" + "os/exec" + "strings" +) + +// findExternalTool returns the file path of a tool that supplies supplies +// the build system package structure, or "" if not found." +// If GOPACKAGESDRIVER is set in the environment findExternalTool returns its +// value, otherwise it searches for a binary named gopackagesdriver on the PATH. +func findExternalDriver(cfg *Config) driver { + const toolPrefix = "GOPACKAGESDRIVER=" + tool := "" + for _, env := range cfg.Env { + if val := strings.TrimPrefix(env, toolPrefix); val != env { + tool = val + } + } + if tool != "" && tool == "off" { + return nil + } + if tool == "" { + var err error + tool, err = exec.LookPath("gopackagesdriver") + if err != nil { + return nil + } + } + return func(cfg *Config, words ...string) (*driverResponse, error) { + buf := new(bytes.Buffer) + fullargs := []string{ + "list", + fmt.Sprintf("-test=%t", cfg.Tests), + fmt.Sprintf("-export=%t", usesExportData(cfg)), + fmt.Sprintf("-deps=%t", cfg.Mode >= LoadImports), + } + for _, f := range cfg.Flags { + fullargs = append(fullargs, fmt.Sprintf("-flags=%v", f)) + } + fullargs = append(fullargs, "--") + fullargs = append(fullargs, words...) + cmd := exec.CommandContext(cfg.Context, tool, fullargs...) + cmd.Env = cfg.Env + cmd.Dir = cfg.Dir + cmd.Stdout = buf + cmd.Stderr = new(bytes.Buffer) + if err := cmd.Run(); err != nil { + return nil, fmt.Errorf("%v: %v: %s", tool, err, cmd.Stderr) + } + var response driverResponse + if err := json.Unmarshal(buf.Bytes(), &response); err != nil { + return nil, err + } + return &response, nil + } +} diff --git a/vendor/golang.org/x/tools/go/packages/golist.go b/vendor/golang.org/x/tools/go/packages/golist.go new file mode 100644 index 00000000..26d62771 --- /dev/null +++ b/vendor/golang.org/x/tools/go/packages/golist.go @@ -0,0 +1,337 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package packages + +import ( + "bytes" + "encoding/json" + "fmt" + "log" + "os" + "os/exec" + "path/filepath" + "strings" +) + +// A goTooOldError reports that the go command +// found by exec.LookPath is too old to use the new go list behavior. +type goTooOldError struct { + error +} + +// goListDriver uses the go list command to interpret the patterns and produce +// the build system package structure. +// See driver for more details. +func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) { + // Determine files requested in contains patterns + var containFiles []string + restPatterns := make([]string, 0, len(patterns)) + for _, pattern := range patterns { + if strings.HasPrefix(pattern, "contains:") { + containFile := strings.TrimPrefix(pattern, "contains:") + containFiles = append(containFiles, containFile) + } else { + restPatterns = append(restPatterns, pattern) + } + } + containFiles = absJoin(cfg.Dir, containFiles) + patterns = restPatterns + + // TODO(matloob): Remove the definition of listfunc and just use golistPackages once go1.12 is released. + var listfunc driver + listfunc = func(cfg *Config, words ...string) (*driverResponse, error) { + response, err := golistDriverCurrent(cfg, patterns...) + if _, ok := err.(goTooOldError); ok { + listfunc = golistDriverFallback + return listfunc(cfg, patterns...) + } + listfunc = golistDriverCurrent + return response, err + } + + var response *driverResponse + var err error + + // see if we have any patterns to pass through to go list. + if len(patterns) > 0 { + response, err = listfunc(cfg, patterns...) + if err != nil { + return nil, err + } + } else { + response = &driverResponse{} + } + + // Run go list for contains: patterns. + seenPkgs := make(map[string]*Package) // for deduplication. different containing queries could produce same packages + if len(containFiles) > 0 { + for _, pkg := range response.Packages { + seenPkgs[pkg.ID] = pkg + } + } + for _, f := range containFiles { + // TODO(matloob): Do only one query per directory. + fdir := filepath.Dir(f) + cfg.Dir = fdir + dirResponse, err := listfunc(cfg, ".") + if err != nil { + return nil, err + } + isRoot := make(map[string]bool, len(dirResponse.Roots)) + for _, root := range dirResponse.Roots { + isRoot[root] = true + } + for _, pkg := range dirResponse.Packages { + // Add any new packages to the main set + // We don't bother to filter packages that will be dropped by the changes of roots, + // that will happen anyway during graph construction outside this function. + // Over-reporting packages is not a problem. + if _, ok := seenPkgs[pkg.ID]; !ok { + // it is a new package, just add it + seenPkgs[pkg.ID] = pkg + response.Packages = append(response.Packages, pkg) + } + // if the package was not a root one, it cannot have the file + if !isRoot[pkg.ID] { + continue + } + for _, pkgFile := range pkg.GoFiles { + if filepath.Base(f) == filepath.Base(pkgFile) { + response.Roots = append(response.Roots, pkg.ID) + break + } + } + } + } + return response, nil +} + +// Fields must match go list; +// see $GOROOT/src/cmd/go/internal/load/pkg.go. +type jsonPackage struct { + ImportPath string + Dir string + Name string + Export string + GoFiles []string + CompiledGoFiles []string + CFiles []string + CgoFiles []string + CXXFiles []string + MFiles []string + HFiles []string + FFiles []string + SFiles []string + SwigFiles []string + SwigCXXFiles []string + SysoFiles []string + Imports []string + ImportMap map[string]string + Deps []string + TestGoFiles []string + TestImports []string + XTestGoFiles []string + XTestImports []string + ForTest string // q in a "p [q.test]" package, else "" + DepOnly bool +} + +func otherFiles(p *jsonPackage) [][]string { + return [][]string{p.CFiles, p.CXXFiles, p.MFiles, p.HFiles, p.FFiles, p.SFiles, p.SwigFiles, p.SwigCXXFiles, p.SysoFiles} +} + +// golistDriverCurrent uses the "go list" command to expand the +// pattern words and return metadata for the specified packages. +// dir may be "" and env may be nil, as per os/exec.Command. +func golistDriverCurrent(cfg *Config, words ...string) (*driverResponse, error) { + // go list uses the following identifiers in ImportPath and Imports: + // + // "p" -- importable package or main (command) + // "q.test" -- q's test executable + // "p [q.test]" -- variant of p as built for q's test executable + // "q_test [q.test]" -- q's external test package + // + // The packages p that are built differently for a test q.test + // are q itself, plus any helpers used by the external test q_test, + // typically including "testing" and all its dependencies. + + // Run "go list" for complete + // information on the specified packages. + buf, err := golist(cfg, golistargs(cfg, words)) + if err != nil { + return nil, err + } + // Decode the JSON and convert it to Package form. + var response driverResponse + for dec := json.NewDecoder(buf); dec.More(); { + p := new(jsonPackage) + if err := dec.Decode(p); err != nil { + return nil, fmt.Errorf("JSON decoding failed: %v", err) + } + + // Bad package? + if p.Name == "" { + // This could be due to: + // - no such package + // - package directory contains no Go source files + // - all package declarations are mangled + // - and possibly other things. + // + // For now, we throw it away and let later + // stages rediscover the problem, but this + // discards the error message computed by go list + // and computes a new one---by different logic: + // if only one of the package declarations is + // bad, for example, should we report an error + // in Metadata mode? + // Unless we parse and typecheck, we might not + // notice there's a problem. + // + // Perhaps we should save a map of PackageID to + // errors for such cases. + continue + } + + id := p.ImportPath + + // Extract the PkgPath from the package's ID. + pkgpath := id + if i := strings.IndexByte(id, ' '); i >= 0 { + pkgpath = id[:i] + } + + if pkgpath == "unsafe" { + p.GoFiles = nil // ignore fake unsafe.go file + } + + // Assume go list emits only absolute paths for Dir. + if !filepath.IsAbs(p.Dir) { + log.Fatalf("internal error: go list returned non-absolute Package.Dir: %s", p.Dir) + } + + export := p.Export + if export != "" && !filepath.IsAbs(export) { + export = filepath.Join(p.Dir, export) + } + + // imports + // + // Imports contains the IDs of all imported packages. + // ImportsMap records (path, ID) only where they differ. + ids := make(map[string]bool) + for _, id := range p.Imports { + ids[id] = true + } + imports := make(map[string]*Package) + for path, id := range p.ImportMap { + imports[path] = &Package{ID: id} // non-identity import + delete(ids, id) + } + for id := range ids { + if id == "C" { + continue + } + + imports[id] = &Package{ID: id} // identity import + } + if !p.DepOnly { + response.Roots = append(response.Roots, id) + } + pkg := &Package{ + ID: id, + Name: p.Name, + PkgPath: pkgpath, + GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles), + CompiledGoFiles: absJoin(p.Dir, p.CompiledGoFiles), + OtherFiles: absJoin(p.Dir, otherFiles(p)...), + Imports: imports, + ExportFile: export, + } + // TODO(matloob): Temporary hack since CompiledGoFiles isn't always set. + if len(pkg.CompiledGoFiles) == 0 { + pkg.CompiledGoFiles = pkg.GoFiles + } + response.Packages = append(response.Packages, pkg) + } + + return &response, nil +} + +// absJoin absolutizes and flattens the lists of files. +func absJoin(dir string, fileses ...[]string) (res []string) { + for _, files := range fileses { + for _, file := range files { + if !filepath.IsAbs(file) { + file = filepath.Join(dir, file) + } + res = append(res, file) + } + } + return res +} + +func golistargs(cfg *Config, words []string) []string { + fullargs := []string{ + "list", "-e", "-json", "-compiled", + fmt.Sprintf("-test=%t", cfg.Tests), + fmt.Sprintf("-export=%t", usesExportData(cfg)), + fmt.Sprintf("-deps=%t", cfg.Mode >= LoadImports), + } + fullargs = append(fullargs, cfg.Flags...) + fullargs = append(fullargs, "--") + fullargs = append(fullargs, words...) + return fullargs +} + +// golist returns the JSON-encoded result of a "go list args..." query. +func golist(cfg *Config, args []string) (*bytes.Buffer, error) { + out := new(bytes.Buffer) + cmd := exec.CommandContext(cfg.Context, "go", args...) + cmd.Env = cfg.Env + cmd.Dir = cfg.Dir + cmd.Stdout = out + cmd.Stderr = new(bytes.Buffer) + if err := cmd.Run(); err != nil { + exitErr, ok := err.(*exec.ExitError) + if !ok { + // Catastrophic error: + // - executable not found + // - context cancellation + return nil, fmt.Errorf("couldn't exec 'go list': %s %T", err, err) + } + + // Old go list? + if strings.Contains(fmt.Sprint(cmd.Stderr), "flag provided but not defined") { + return nil, goTooOldError{fmt.Errorf("unsupported version of go list: %s: %s", exitErr, cmd.Stderr)} + } + + // Export mode entails a build. + // If that build fails, errors appear on stderr + // (despite the -e flag) and the Export field is blank. + // Do not fail in that case. + if !usesExportData(cfg) { + return nil, fmt.Errorf("go list: %s: %s", exitErr, cmd.Stderr) + } + } + + // Print standard error output from "go list". + // Due to the -e flag, this should be empty. + // However, in -export mode it contains build errors. + // Should go list save build errors in the Package.Error JSON field? + // See https://github.com/golang/go/issues/26319. + // If so, then we should continue to print stderr as go list + // will be silent unless something unexpected happened. + // If not, perhaps we should suppress it to reduce noise. + if stderr := fmt.Sprint(cmd.Stderr); stderr != "" { + fmt.Fprintf(os.Stderr, "go list stderr <<%s>>\n", stderr) + } + + // debugging + if false { + fmt.Fprintln(os.Stderr, out) + } + + return out, nil +} diff --git a/vendor/golang.org/x/tools/go/packages/golist_fallback.go b/vendor/golang.org/x/tools/go/packages/golist_fallback.go new file mode 100644 index 00000000..331bb655 --- /dev/null +++ b/vendor/golang.org/x/tools/go/packages/golist_fallback.go @@ -0,0 +1,282 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package packages + +import ( + "encoding/json" + "fmt" + + "go/build" + "io/ioutil" + "os" + "path/filepath" + "sort" + "strings" + + "golang.org/x/tools/go/internal/cgo" +) + +// TODO(matloob): Delete this file once Go 1.12 is released. + +// This file provides backwards compatibility support for +// loading for versions of Go earlier than 1.10.4. This support is meant to +// assist with migration to the Package API until there's +// widespread adoption of these newer Go versions. +// This support will be removed once Go 1.12 is released +// in Q1 2019. + +func golistDriverFallback(cfg *Config, words ...string) (*driverResponse, error) { + original, deps, err := getDeps(cfg, words...) + if err != nil { + return nil, err + } + + var tmpdir string // used for generated cgo files + + var response driverResponse + addPackage := func(p *jsonPackage) { + if p.Name == "" { + return + } + + id := p.ImportPath + isRoot := original[id] != nil + pkgpath := id + + if pkgpath == "unsafe" { + p.GoFiles = nil // ignore fake unsafe.go file + } + + importMap := func(importlist []string) map[string]*Package { + importMap := make(map[string]*Package) + for _, id := range importlist { + + if id == "C" { + for _, path := range []string{"unsafe", "syscall", "runtime/cgo"} { + if pkgpath != path && importMap[path] == nil { + importMap[path] = &Package{ID: path} + } + } + continue + } + importMap[vendorlessPath(id)] = &Package{ID: id} + } + return importMap + } + compiledGoFiles := absJoin(p.Dir, p.GoFiles) + // Use a function to simplify control flow. It's just a bunch of gotos. + var cgoErrors []error + processCgo := func() bool { + // Suppress any cgo errors. Any relevant errors will show up in typechecking. + // TODO(matloob): Skip running cgo if Mode < LoadTypes. + if tmpdir == "" { + if tmpdir, err = ioutil.TempDir("", "gopackages"); err != nil { + cgoErrors = append(cgoErrors, err) + return false + } + } + outdir := filepath.Join(tmpdir, strings.Replace(p.ImportPath, "/", "_", -1)) + if err := os.Mkdir(outdir, 0755); err != nil { + cgoErrors = append(cgoErrors, err) + return false + } + files, _, err := runCgo(p.Dir, outdir, cfg.Env) + if err != nil { + cgoErrors = append(cgoErrors, err) + return false + } + compiledGoFiles = append(compiledGoFiles, files...) + return true + } + if len(p.CgoFiles) == 0 || !processCgo() { + compiledGoFiles = append(compiledGoFiles, absJoin(p.Dir, p.CgoFiles)...) // Punt to typechecker. + } + if isRoot { + response.Roots = append(response.Roots, id) + } + response.Packages = append(response.Packages, &Package{ + ID: id, + Name: p.Name, + GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles), + CompiledGoFiles: compiledGoFiles, + OtherFiles: absJoin(p.Dir, otherFiles(p)...), + PkgPath: pkgpath, + Imports: importMap(p.Imports), + // TODO(matloob): set errors on the Package to cgoErrors + }) + if cfg.Tests { + testID := fmt.Sprintf("%s [%s.test]", id, id) + if len(p.TestGoFiles) > 0 || len(p.XTestGoFiles) > 0 { + if isRoot { + response.Roots = append(response.Roots, testID) + } + response.Packages = append(response.Packages, &Package{ + ID: testID, + Name: p.Name, + GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles, p.TestGoFiles), + CompiledGoFiles: append(compiledGoFiles, absJoin(p.Dir, p.TestGoFiles)...), + OtherFiles: absJoin(p.Dir, otherFiles(p)...), + PkgPath: pkgpath, + Imports: importMap(append(p.Imports, p.TestImports...)), + // TODO(matloob): set errors on the Package to cgoErrors + }) + if len(p.XTestGoFiles) > 0 { + xtestID := fmt.Sprintf("%s_test [%s.test]", id, id) + if isRoot { + response.Roots = append(response.Roots, xtestID) + } + for i, imp := range p.XTestImports { + if imp == p.ImportPath { + p.XTestImports[i] = testID + break + } + } + response.Packages = append(response.Packages, &Package{ + ID: xtestID, + Name: p.Name + "_test", + GoFiles: absJoin(p.Dir, p.XTestGoFiles), + CompiledGoFiles: absJoin(p.Dir, p.XTestGoFiles), + PkgPath: pkgpath, + Imports: importMap(p.XTestImports), + }) + } + } + } + } + + for _, pkg := range original { + addPackage(pkg) + } + if cfg.Mode < LoadImports || len(deps) == 0 { + return &response, nil + } + + buf, err := golist(cfg, golistArgsFallback(cfg, deps)) + if err != nil { + return nil, err + } + + // Decode the JSON and convert it to Package form. + for dec := json.NewDecoder(buf); dec.More(); { + p := new(jsonPackage) + if err := dec.Decode(p); err != nil { + return nil, fmt.Errorf("JSON decoding failed: %v", err) + } + + addPackage(p) + } + + return &response, nil +} + +// vendorlessPath returns the devendorized version of the import path ipath. +// For example, VendorlessPath("foo/bar/vendor/a/b") returns "a/b". +// Copied from golang.org/x/tools/imports/fix.go. +func vendorlessPath(ipath string) string { + // Devendorize for use in import statement. + if i := strings.LastIndex(ipath, "/vendor/"); i >= 0 { + return ipath[i+len("/vendor/"):] + } + if strings.HasPrefix(ipath, "vendor/") { + return ipath[len("vendor/"):] + } + return ipath +} + +// getDeps runs an initial go list to determine all the dependency packages. +func getDeps(cfg *Config, words ...string) (originalSet map[string]*jsonPackage, deps []string, err error) { + buf, err := golist(cfg, golistArgsFallback(cfg, words)) + if err != nil { + return nil, nil, err + } + + depsSet := make(map[string]bool) + originalSet = make(map[string]*jsonPackage) + var testImports []string + + // Extract deps from the JSON. + for dec := json.NewDecoder(buf); dec.More(); { + p := new(jsonPackage) + if err := dec.Decode(p); err != nil { + return nil, nil, fmt.Errorf("JSON decoding failed: %v", err) + } + + originalSet[p.ImportPath] = p + for _, dep := range p.Deps { + depsSet[dep] = true + } + if cfg.Tests { + // collect the additional imports of the test packages. + pkgTestImports := append(p.TestImports, p.XTestImports...) + for _, imp := range pkgTestImports { + if depsSet[imp] { + continue + } + depsSet[imp] = true + testImports = append(testImports, imp) + } + } + } + // Get the deps of the packages imported by tests. + if len(testImports) > 0 { + buf, err = golist(cfg, golistArgsFallback(cfg, testImports)) + if err != nil { + return nil, nil, err + } + // Extract deps from the JSON. + for dec := json.NewDecoder(buf); dec.More(); { + p := new(jsonPackage) + if err := dec.Decode(p); err != nil { + return nil, nil, fmt.Errorf("JSON decoding failed: %v", err) + } + for _, dep := range p.Deps { + depsSet[dep] = true + } + } + } + + for orig := range originalSet { + delete(depsSet, orig) + } + + deps = make([]string, 0, len(depsSet)) + for dep := range depsSet { + deps = append(deps, dep) + } + sort.Strings(deps) // ensure output is deterministic + return originalSet, deps, nil +} + +func golistArgsFallback(cfg *Config, words []string) []string { + fullargs := []string{"list", "-e", "-json"} + fullargs = append(fullargs, cfg.Flags...) + fullargs = append(fullargs, "--") + fullargs = append(fullargs, words...) + return fullargs +} + +func runCgo(pkgdir, tmpdir string, env []string) (files, displayfiles []string, err error) { + // Use go/build to open cgo files and determine the cgo flags, etc, from them. + // This is tricky so it's best to avoid reimplementing as much as we can, and + // we plan to delete this support once Go 1.12 is released anyways. + // TODO(matloob): This isn't completely correct because we're using the Default + // context. Perhaps we should more accurately fill in the context. + bp, err := build.ImportDir(pkgdir, build.ImportMode(0)) + if err != nil { + return nil, nil, err + } + for _, ev := range env { + if v := strings.TrimPrefix(ev, "CGO_CPPFLAGS"); v != ev { + bp.CgoCPPFLAGS = append(bp.CgoCPPFLAGS, strings.Fields(v)...) + } else if v := strings.TrimPrefix(ev, "CGO_CFLAGS"); v != ev { + bp.CgoCFLAGS = append(bp.CgoCFLAGS, strings.Fields(v)...) + } else if v := strings.TrimPrefix(ev, "CGO_CXXFLAGS"); v != ev { + bp.CgoCXXFLAGS = append(bp.CgoCXXFLAGS, strings.Fields(v)...) + } else if v := strings.TrimPrefix(ev, "CGO_LDFLAGS"); v != ev { + bp.CgoLDFLAGS = append(bp.CgoLDFLAGS, strings.Fields(v)...) + } + } + return cgo.Run(bp, pkgdir, tmpdir, true) +} diff --git a/vendor/golang.org/x/tools/go/packages/packages.go b/vendor/golang.org/x/tools/go/packages/packages.go new file mode 100644 index 00000000..7e8e4e2e --- /dev/null +++ b/vendor/golang.org/x/tools/go/packages/packages.go @@ -0,0 +1,824 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package packages + +// See doc.go for package documentation and implementation notes. + +import ( + "context" + "encoding/json" + "fmt" + "go/ast" + "go/parser" + "go/token" + "go/types" + "log" + "os" + "sync" + + "golang.org/x/tools/go/gcexportdata" +) + +// A LoadMode specifies the amount of detail to return when loading packages. +// The modes are all strictly additive, as you go through the list it increases +// the amount of information available to you, but may also increase the cost +// of collecting the information. +// Load is always allowed to return more information than requested. +type LoadMode int + +const ( + // LoadFiles finds the packages and computes their source file lists. + // Package fields: ID, Name, Errors, GoFiles, OtherFiles. + LoadFiles LoadMode = iota + + // LoadImports adds import information for each package + // and its dependencies. + // Package fields added: Imports. + LoadImports + + // LoadTypes adds type information for the package's exported symbols. + // Package fields added: Types, Fset, IllTyped. + // This will use the type information provided by the build system if + // possible, and the ExportFile field may be filled in. + LoadTypes + + // LoadSyntax adds typed syntax trees for the packages matching the patterns. + // Package fields added: Syntax, TypesInfo, for direct pattern matches only. + LoadSyntax + + // LoadAllSyntax adds typed syntax trees for the packages matching the patterns + // and all dependencies. + // Package fields added: Syntax, TypesInfo, for all packages in import graph. + LoadAllSyntax +) + +// An Config specifies details about how packages should be loaded. +// Calls to Load do not modify this struct. +type Config struct { + // Mode controls the level of information returned for each package. + Mode LoadMode + + // Context specifies the context for the load operation. + // If the context is cancelled, the loader may stop early + // and return an ErrCancelled error. + // If Context is nil, the load cannot be cancelled. + Context context.Context + + // Dir is the directory in which to run the build system tool + // that provides information about the packages. + // If Dir is empty, the tool is run in the current directory. + Dir string + + // Env is the environment to use when invoking the build system tool. + // If Env is nil, the current environment is used. + // Like in os/exec's Cmd, only the last value in the slice for + // each environment key is used. To specify the setting of only + // a few variables, append to the current environment, as in: + // + // opt.Env = append(os.Environ(), "GOOS=plan9", "GOARCH=386") + // + Env []string + + // Flags is a list of command-line flags to be passed through to + // the underlying query tool. + Flags []string + + // Error is called for each error encountered during package loading. + // It must be safe to call Error simultaneously from multiple goroutines. + // In addition to calling Error, the loader will record each error + // in the corresponding Package's Errors list. + // If Error is nil, the loader will print errors to os.Stderr. + // To disable printing of errors, set opt.Error = func(error){}. + // TODO(rsc): What happens in the Metadata loader? Currently nothing. + Error func(error) + + // Fset is the token.FileSet to use when parsing source files or + // type information provided by the build system. + // If Fset is nil, the loader will create one. + Fset *token.FileSet + + // ParseFile is called to read and parse each file + // when preparing a package's type-checked syntax tree. + // It must be safe to call ParseFile simultaneously from multiple goroutines. + // If ParseFile is nil, the loader will uses parser.ParseFile. + // + // Setting ParseFile to a custom implementation can allow + // providing alternate file content in order to type-check + // unsaved text editor buffers, or to selectively eliminate + // unwanted function bodies to reduce the amount of work + // done by the type checker. + ParseFile func(fset *token.FileSet, filename string) (*ast.File, error) + + // If Tests is set, the loader includes not just the packages + // matching a particular pattern but also any related test packages, + // including test-only variants of the package and the test executable. + // + // For example, when using the go command, loading "fmt" with Tests=true + // returns four packages, with IDs "fmt" (the standard package), + // "fmt [fmt.test]" (the package as compiled for the test), + // "fmt_test" (the test functions from source files in package fmt_test), + // and "fmt.test" (the test binary). + // + // In build systems with explicit names for tests, + // setting Tests may have no effect. + Tests bool + + // TypeChecker provides additional configuration for type-checking syntax trees. + // + // It is used for all packages in LoadAllSyntax mode, + // and for the packages matching the patterns, but not their dependencies, + // in LoadSyntax mode. + // + // The TypeChecker.Error function is ignored: + // errors are reported using the Error function defined above. + // + // The TypeChecker.Importer function is ignored: + // the loader defines an appropriate importer. + // + // TODO(rsc): TypeChecker.Sizes should use the same sizes as the main build. + // Derive them from the runtime? + TypeChecker types.Config +} + +// driver is the type for functions that query the build system for the +// packages named by the patterns. +type driver func(cfg *Config, patterns ...string) (*driverResponse, error) + +// driverResponse contains the results for a driver query. +type driverResponse struct { + // Roots is the set of package IDs that make up the root packages. + // We have to encode this separately because when we encode a single package + // we cannot know if it is one of the roots as that requires knowledge of the + // graph it is part of. + Roots []string `json:",omitempty"` + + // Packages is the full set of packages in the graph. + // The packages are not connected into a graph. + // The Imports if populated will be stubs that only have their ID set. + // Imports will be connected and then type and syntax information added in a + // later pass (see refine). + Packages []*Package +} + +// Load loads and returns the Go packages named by the given patterns. +// +// Config specifies loading options; +// nil behaves the same as an empty Config. +// +// Load returns an error if any of the patterns was invalid +// as defined by the underlying build system. +// It may return an empty list of packages without an error, +// for instance for an empty expansion of a valid wildcard. +func Load(cfg *Config, patterns ...string) ([]*Package, error) { + l := newLoader(cfg) + response, err := defaultDriver(&l.Config, patterns...) + if err != nil { + return nil, err + } + return l.refine(response.Roots, response.Packages...) +} + +// defaultDriver is a driver that looks for an external driver binary, and if +// it does not find it falls back to the built in go list driver. +func defaultDriver(cfg *Config, patterns ...string) (*driverResponse, error) { + driver := findExternalDriver(cfg) + if driver == nil { + driver = goListDriver + } + return driver(cfg, patterns...) +} + +// A Package describes a single loaded Go package. +type Package struct { + // ID is a unique identifier for a package, + // in a syntax provided by the underlying build system. + // + // Because the syntax varies based on the build system, + // clients should treat IDs as opaque and not attempt to + // interpret them. + ID string + + // Name is the package name as it appears in the package source code. + Name string + + // This is the package path as used by the types package. + // This is used to map entries in the type information back to the package + // they come from. + PkgPath string + + // Errors lists any errors encountered while loading the package. + // TODO(rsc): Say something about the errors or at least their Strings, + // as far as file:line being at the beginning and so on. + Errors []error + + // GoFiles lists the absolute file paths of the package's Go source files. + GoFiles []string + + // CompiledGoFiles lists the absolute file paths of the package's source + // files that were presented to the compiler. + // This may differ from GoFiles if files are processed before compilation. + CompiledGoFiles []string + + // OtherFiles lists the absolute file paths of the package's non-Go source files, + // including assembly, C, C++, Fortran, Objective-C, SWIG, and so on. + OtherFiles []string + + // ExportFile is the absolute path to a file containing the type information + // provided by the build system. + ExportFile string + + // Imports maps import paths appearing in the package's Go source files + // to corresponding loaded Packages. + Imports map[string]*Package + + // Types is the type information for the package. + // Modes LoadTypes and above set this field for all packages. + // + // TODO(adonovan): all packages? In Types mode this entails + // asymptotically more export data processing than is required + // to load the requested packages. Is that what we want? + Types *types.Package + + // Fset provides position information for Types, TypesInfo, and Syntax. + // Modes LoadTypes and above set this field for all packages. + Fset *token.FileSet + + // IllTyped indicates whether the package has any type errors. + // Modes LoadTypes and above set this field for all packages. + IllTyped bool + + // Syntax is the package's syntax trees, for the files listed in GoFiles. + // + // Mode LoadSyntax set this field for packages matching the patterns. + // Mode LoadSyntaxAll sets this field for all packages, including dependencies. + Syntax []*ast.File + + // TypesInfo is the type-checking results for the package's syntax trees. + // It is set only when Syntax is set. + TypesInfo *types.Info +} + +// packageError is used to serialize structured errors as much as possible. +// This has members compatible with the golist error type, and possibly some +// more if we need other error information to survive. +type packageError struct { + Pos string // position of error + Err string // the error itself +} + +func (e *packageError) Error() string { + return e.Pos + ": " + e.Err +} + +// flatPackage is the JSON form of Package +// It drops all the type and syntax fields, and transforms the Imports and Errors +type flatPackage struct { + ID string + Name string `json:",omitempty"` + PkgPath string `json:",omitempty"` + Errors []*packageError `json:",omitempty"` + GoFiles []string `json:",omitempty"` + CompiledGoFiles []string `json:",omitempty"` + OtherFiles []string `json:",omitempty"` + ExportFile string `json:",omitempty"` + Imports map[string]string `json:",omitempty"` +} + +// MarshalJSON returns the Package in its JSON form. +// For the most part, the structure fields are written out unmodified, and +// the type and syntax fields are skipped. +// The imports are written out as just a map of path to package id. +// The errors are written using a custom type that tries to preserve the +// structure of error types we know about. +// This method exists to enable support for additional build systems. It is +// not intended for use by clients of the API and we may change the format. +func (p *Package) MarshalJSON() ([]byte, error) { + flat := &flatPackage{ + ID: p.ID, + Name: p.Name, + PkgPath: p.PkgPath, + GoFiles: p.GoFiles, + CompiledGoFiles: p.CompiledGoFiles, + OtherFiles: p.OtherFiles, + ExportFile: p.ExportFile, + } + if len(p.Errors) > 0 { + flat.Errors = make([]*packageError, len(p.Errors)) + for i, err := range p.Errors { + //TODO: best effort mapping of errors to the serialized form + switch err := err.(type) { + case *packageError: + flat.Errors[i] = err + default: + flat.Errors[i] = &packageError{Err: err.Error()} + } + } + } + if len(p.Imports) > 0 { + flat.Imports = make(map[string]string, len(p.Imports)) + for path, ipkg := range p.Imports { + flat.Imports[path] = ipkg.ID + } + } + return json.Marshal(flat) +} + +// UnmarshalJSON reads in a Package from its JSON format. +// See MarshalJSON for details about the format accepted. +func (p *Package) UnmarshalJSON(b []byte) error { + flat := &flatPackage{} + if err := json.Unmarshal(b, &flat); err != nil { + return err + } + *p = Package{ + ID: flat.ID, + Name: flat.Name, + PkgPath: flat.PkgPath, + GoFiles: flat.GoFiles, + CompiledGoFiles: flat.CompiledGoFiles, + OtherFiles: flat.OtherFiles, + ExportFile: flat.ExportFile, + } + if len(flat.Errors) > 0 { + p.Errors = make([]error, len(flat.Errors)) + for i, err := range flat.Errors { + p.Errors[i] = err + } + } + if len(flat.Imports) > 0 { + p.Imports = make(map[string]*Package, len(flat.Imports)) + for path, id := range flat.Imports { + p.Imports[path] = &Package{ID: id} + } + } + return nil +} + +func (p *Package) String() string { return p.ID } + +// loaderPackage augments Package with state used during the loading phase +type loaderPackage struct { + *Package + importErrors map[string]error // maps each bad import to its error + loadOnce sync.Once + color uint8 // for cycle detection + mark, needsrc bool // used when Mode >= LoadTypes +} + +// loader holds the working state of a single call to load. +type loader struct { + pkgs map[string]*loaderPackage + Config + exportMu sync.Mutex // enforces mutual exclusion of exportdata operations +} + +func newLoader(cfg *Config) *loader { + ld := &loader{} + if cfg != nil { + ld.Config = *cfg + } + if ld.Context == nil { + ld.Context = context.Background() + } + if ld.Dir == "" { + if dir, err := os.Getwd(); err == nil { + ld.Dir = dir + } + } + + if ld.Mode >= LoadTypes { + if ld.Fset == nil { + ld.Fset = token.NewFileSet() + } + + // Error and ParseFile are required even in LoadTypes mode + // because we load source if export data is missing. + + if ld.Error == nil { + ld.Error = func(e error) { + fmt.Fprintln(os.Stderr, e) + } + } + + if ld.ParseFile == nil { + ld.ParseFile = func(fset *token.FileSet, filename string) (*ast.File, error) { + const mode = parser.AllErrors | parser.ParseComments + return parser.ParseFile(fset, filename, nil, mode) + } + } + } + return ld +} + +// refine connects the supplied packages into a graph and then adds type and +// and syntax information as requested by the LoadMode. +func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { + if len(list) == 0 { + return nil, fmt.Errorf("packages not found") + } + isRoot := make(map[string]bool, len(roots)) + for _, root := range roots { + isRoot[root] = true + } + ld.pkgs = make(map[string]*loaderPackage) + // first pass, fixup and build the map and roots + var initial []*loaderPackage + for _, pkg := range list { + lpkg := &loaderPackage{ + Package: pkg, + needsrc: ld.Mode >= LoadAllSyntax || + (ld.Mode >= LoadSyntax && isRoot[pkg.ID]) || + (pkg.ExportFile == "" && pkg.PkgPath != "unsafe"), + } + ld.pkgs[lpkg.ID] = lpkg + if isRoot[lpkg.ID] { + initial = append(initial, lpkg) + } + } + + // Materialize the import graph. + + const ( + white = 0 // new + grey = 1 // in progress + black = 2 // complete + ) + + // visit traverses the import graph, depth-first, + // and materializes the graph as Packages.Imports. + // + // Valid imports are saved in the Packages.Import map. + // Invalid imports (cycles and missing nodes) are saved in the importErrors map. + // Thus, even in the presence of both kinds of errors, the Import graph remains a DAG. + // + // visit returns whether the package needs src or has a transitive + // dependency on a package that does. These are the only packages + // for which we load source code. + var stack []*loaderPackage + var visit func(lpkg *loaderPackage) bool + visit = func(lpkg *loaderPackage) bool { + switch lpkg.color { + case black: + return lpkg.needsrc + case grey: + panic("internal error: grey node") + } + lpkg.color = grey + stack = append(stack, lpkg) // push + stubs := lpkg.Imports // the structure form has only stubs with the ID in the Imports + lpkg.Imports = make(map[string]*Package, len(stubs)) + for importPath, ipkg := range stubs { + var importErr error + imp := ld.pkgs[ipkg.ID] + if imp == nil { + // (includes package "C" when DisableCgo) + importErr = fmt.Errorf("missing package: %q", ipkg.ID) + } else if imp.color == grey { + importErr = fmt.Errorf("import cycle: %s", stack) + } + if importErr != nil { + if lpkg.importErrors == nil { + lpkg.importErrors = make(map[string]error) + } + lpkg.importErrors[importPath] = importErr + continue + } + + if visit(imp) { + lpkg.needsrc = true + } + lpkg.Imports[importPath] = imp.Package + } + + stack = stack[:len(stack)-1] // pop + lpkg.color = black + + return lpkg.needsrc + } + + if ld.Mode < LoadImports { + //we do this to drop the stub import packages that we are not even going to try to resolve + for _, lpkg := range initial { + lpkg.Imports = nil + } + } else { + // For each initial package, create its import DAG. + for _, lpkg := range initial { + visit(lpkg) + } + } + // Load type data if needed, starting at + // the initial packages (roots of the import DAG). + if ld.Mode >= LoadTypes { + var wg sync.WaitGroup + for _, lpkg := range initial { + wg.Add(1) + go func(lpkg *loaderPackage) { + ld.loadRecursive(lpkg) + wg.Done() + }(lpkg) + } + wg.Wait() + } + + result := make([]*Package, len(initial)) + for i, lpkg := range initial { + result[i] = lpkg.Package + } + return result, nil +} + +// loadRecursive loads the specified package and its dependencies, +// recursively, in parallel, in topological order. +// It is atomic and idempotent. +// Precondition: ld.Mode >= LoadTypes. +func (ld *loader) loadRecursive(lpkg *loaderPackage) { + lpkg.loadOnce.Do(func() { + // Load the direct dependencies, in parallel. + var wg sync.WaitGroup + for _, ipkg := range lpkg.Imports { + imp := ld.pkgs[ipkg.ID] + wg.Add(1) + go func(imp *loaderPackage) { + ld.loadRecursive(imp) + wg.Done() + }(imp) + } + wg.Wait() + + ld.loadPackage(lpkg) + }) +} + +// loadPackage loads the specified package. +// It must be called only once per Package, +// after immediate dependencies are loaded. +// Precondition: ld.Mode >= LoadTypes. +func (ld *loader) loadPackage(lpkg *loaderPackage) { + if lpkg.PkgPath == "unsafe" { + // Fill in the blanks to avoid surprises. + lpkg.Types = types.Unsafe + lpkg.Fset = ld.Fset + lpkg.Syntax = []*ast.File{} + lpkg.TypesInfo = new(types.Info) + return + } + + // Call NewPackage directly with explicit name. + // This avoids skew between golist and go/types when the files' + // package declarations are inconsistent. + lpkg.Types = types.NewPackage(lpkg.PkgPath, lpkg.Name) + + if !lpkg.needsrc { + ld.loadFromExportData(lpkg) + return // not a source package, don't get syntax trees + } + + hardErrors := false + appendError := func(err error) { + if terr, ok := err.(types.Error); ok && terr.Soft { + // Don't mark the package as bad. + } else { + hardErrors = true + } + ld.Error(err) + lpkg.Errors = append(lpkg.Errors, err) + } + + files, errs := ld.parseFiles(lpkg.CompiledGoFiles) + for _, err := range errs { + appendError(err) + } + + lpkg.Fset = ld.Fset + lpkg.Syntax = files + + lpkg.TypesInfo = &types.Info{ + Types: make(map[ast.Expr]types.TypeAndValue), + Defs: make(map[*ast.Ident]types.Object), + Uses: make(map[*ast.Ident]types.Object), + Implicits: make(map[ast.Node]types.Object), + Scopes: make(map[ast.Node]*types.Scope), + Selections: make(map[*ast.SelectorExpr]*types.Selection), + } + + // Copy the prototype types.Config as it must vary across Packages. + tc := ld.TypeChecker // copy + tc.Importer = importerFunc(func(path string) (*types.Package, error) { + if path == "unsafe" { + return types.Unsafe, nil + } + + // The imports map is keyed by import path. + ipkg := lpkg.Imports[path] + if ipkg == nil { + if err := lpkg.importErrors[path]; err != nil { + return nil, err + } + // There was skew between the metadata and the + // import declarations, likely due to an edit + // race, or because the ParseFile feature was + // used to supply alternative file contents. + return nil, fmt.Errorf("no metadata for %s", path) + } + + if ipkg.Types != nil && ipkg.Types.Complete() { + return ipkg.Types, nil + } + log.Fatalf("internal error: nil Pkg importing %q from %q", path, lpkg) + panic("unreachable") + }) + tc.Error = appendError + + // type-check + types.NewChecker(&tc, ld.Fset, lpkg.Types, lpkg.TypesInfo).Files(lpkg.Syntax) + + lpkg.importErrors = nil // no longer needed + + // If !Cgo, the type-checker uses FakeImportC mode, so + // it doesn't invoke the importer for import "C", + // nor report an error for the import, + // or for any undefined C.f reference. + // We must detect this explicitly and correctly + // mark the package as IllTyped (by reporting an error). + // TODO(adonovan): if these errors are annoying, + // we could just set IllTyped quietly. + if tc.FakeImportC { + outer: + for _, f := range lpkg.Syntax { + for _, imp := range f.Imports { + if imp.Path.Value == `"C"` { + appendError(fmt.Errorf(`%s: import "C" ignored`, + lpkg.Fset.Position(imp.Pos()))) + break outer + } + } + } + } + + // Record accumulated errors. + for _, imp := range lpkg.Imports { + if imp.IllTyped { + hardErrors = true + break + } + } + + lpkg.IllTyped = hardErrors +} + +// An importFunc is an implementation of the single-method +// types.Importer interface based on a function value. +type importerFunc func(path string) (*types.Package, error) + +func (f importerFunc) Import(path string) (*types.Package, error) { return f(path) } + +// We use a counting semaphore to limit +// the number of parallel I/O calls per process. +var ioLimit = make(chan bool, 20) + +// parseFiles reads and parses the Go source files and returns the ASTs +// of the ones that could be at least partially parsed, along with a +// list of I/O and parse errors encountered. +// +// Because files are scanned in parallel, the token.Pos +// positions of the resulting ast.Files are not ordered. +// +func (ld *loader) parseFiles(filenames []string) ([]*ast.File, []error) { + var wg sync.WaitGroup + n := len(filenames) + parsed := make([]*ast.File, n) + errors := make([]error, n) + for i, file := range filenames { + wg.Add(1) + go func(i int, filename string) { + ioLimit <- true // wait + // ParseFile may return both an AST and an error. + parsed[i], errors[i] = ld.ParseFile(ld.Fset, filename) + <-ioLimit // signal + wg.Done() + }(i, file) + } + wg.Wait() + + // Eliminate nils, preserving order. + var o int + for _, f := range parsed { + if f != nil { + parsed[o] = f + o++ + } + } + parsed = parsed[:o] + + o = 0 + for _, err := range errors { + if err != nil { + errors[o] = err + o++ + } + } + errors = errors[:o] + + return parsed, errors +} + +// loadFromExportData returns type information for the specified +// package, loading it from an export data file on the first request. +func (ld *loader) loadFromExportData(lpkg *loaderPackage) (*types.Package, error) { + if lpkg.PkgPath == "" { + log.Fatalf("internal error: Package %s has no PkgPath", lpkg) + } + + // Because gcexportdata.Read has the potential to create or + // modify the types.Package for each node in the transitive + // closure of dependencies of lpkg, all exportdata operations + // must be sequential. (Finer-grained locking would require + // changes to the gcexportdata API.) + // + // The exportMu lock guards the Package.Pkg field and the + // types.Package it points to, for each Package in the graph. + // + // Not all accesses to Package.Pkg need to be protected by exportMu: + // graph ordering ensures that direct dependencies of source + // packages are fully loaded before the importer reads their Pkg field. + ld.exportMu.Lock() + defer ld.exportMu.Unlock() + + if tpkg := lpkg.Types; tpkg != nil && tpkg.Complete() { + return tpkg, nil // cache hit + } + + lpkg.IllTyped = true // fail safe + + if lpkg.ExportFile == "" { + // Errors while building export data will have been printed to stderr. + return nil, fmt.Errorf("no export data file") + } + f, err := os.Open(lpkg.ExportFile) + if err != nil { + return nil, err + } + defer f.Close() + + // Read gc export data. + // + // We don't currently support gccgo export data because all + // underlying workspaces use the gc toolchain. (Even build + // systems that support gccgo don't use it for workspace + // queries.) + r, err := gcexportdata.NewReader(f) + if err != nil { + return nil, fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) + } + + // Build the view. + // + // The gcexportdata machinery has no concept of package ID. + // It identifies packages by their PkgPath, which although not + // globally unique is unique within the scope of one invocation + // of the linker, type-checker, or gcexportdata. + // + // So, we must build a PkgPath-keyed view of the global + // (conceptually ID-keyed) cache of packages and pass it to + // gcexportdata. The view must contain every existing + // package that might possibly be mentioned by the + // current package---its transitive closure. + // + // TODO(adonovan): it would be more simpler and more efficient + // if the export data machinery invoked a callback to + // get-or-create a package instead of a map. + // + view := make(map[string]*types.Package) // view seen by gcexportdata + seen := make(map[*loaderPackage]bool) // all visited packages + var visit func(pkgs map[string]*Package) + visit = func(pkgs map[string]*Package) { + for _, p := range pkgs { + lpkg := ld.pkgs[p.ID] + if !seen[lpkg] { + seen[lpkg] = true + view[lpkg.PkgPath] = lpkg.Types + visit(lpkg.Imports) + } + } + } + visit(lpkg.Imports) + + // Parse the export data. + // (May create/modify packages in view.) + tpkg, err := gcexportdata.Read(r, ld.Fset, view, lpkg.PkgPath) + if err != nil { + return nil, fmt.Errorf("reading %s: %v", lpkg.ExportFile, err) + } + + lpkg.Types = tpkg + lpkg.IllTyped = false + + return tpkg, nil +} + +func usesExportData(cfg *Config) bool { + return LoadTypes <= cfg.Mode && cfg.Mode < LoadAllSyntax +} diff --git a/vendor/golang.org/x/tools/go/types/typeutil/imports.go b/vendor/golang.org/x/tools/go/types/typeutil/imports.go new file mode 100644 index 00000000..9c441dba --- /dev/null +++ b/vendor/golang.org/x/tools/go/types/typeutil/imports.go @@ -0,0 +1,31 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package typeutil + +import "go/types" + +// Dependencies returns all dependencies of the specified packages. +// +// Dependent packages appear in topological order: if package P imports +// package Q, Q appears earlier than P in the result. +// The algorithm follows import statements in the order they +// appear in the source code, so the result is a total order. +// +func Dependencies(pkgs ...*types.Package) []*types.Package { + var result []*types.Package + seen := make(map[*types.Package]bool) + var visit func(pkgs []*types.Package) + visit = func(pkgs []*types.Package) { + for _, p := range pkgs { + if !seen[p] { + seen[p] = true + visit(p.Imports()) + result = append(result, p) + } + } + } + visit(pkgs) + return result +} diff --git a/vendor/golang.org/x/tools/go/types/typeutil/map.go b/vendor/golang.org/x/tools/go/types/typeutil/map.go new file mode 100644 index 00000000..c7f75450 --- /dev/null +++ b/vendor/golang.org/x/tools/go/types/typeutil/map.go @@ -0,0 +1,313 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package typeutil defines various utilities for types, such as Map, +// a mapping from types.Type to interface{} values. +package typeutil // import "golang.org/x/tools/go/types/typeutil" + +import ( + "bytes" + "fmt" + "go/types" + "reflect" +) + +// Map is a hash-table-based mapping from types (types.Type) to +// arbitrary interface{} values. The concrete types that implement +// the Type interface are pointers. Since they are not canonicalized, +// == cannot be used to check for equivalence, and thus we cannot +// simply use a Go map. +// +// Just as with map[K]V, a nil *Map is a valid empty map. +// +// Not thread-safe. +// +type Map struct { + hasher Hasher // shared by many Maps + table map[uint32][]entry // maps hash to bucket; entry.key==nil means unused + length int // number of map entries +} + +// entry is an entry (key/value association) in a hash bucket. +type entry struct { + key types.Type + value interface{} +} + +// SetHasher sets the hasher used by Map. +// +// All Hashers are functionally equivalent but contain internal state +// used to cache the results of hashing previously seen types. +// +// A single Hasher created by MakeHasher() may be shared among many +// Maps. This is recommended if the instances have many keys in +// common, as it will amortize the cost of hash computation. +// +// A Hasher may grow without bound as new types are seen. Even when a +// type is deleted from the map, the Hasher never shrinks, since other +// types in the map may reference the deleted type indirectly. +// +// Hashers are not thread-safe, and read-only operations such as +// Map.Lookup require updates to the hasher, so a full Mutex lock (not a +// read-lock) is require around all Map operations if a shared +// hasher is accessed from multiple threads. +// +// If SetHasher is not called, the Map will create a private hasher at +// the first call to Insert. +// +func (m *Map) SetHasher(hasher Hasher) { + m.hasher = hasher +} + +// Delete removes the entry with the given key, if any. +// It returns true if the entry was found. +// +func (m *Map) Delete(key types.Type) bool { + if m != nil && m.table != nil { + hash := m.hasher.Hash(key) + bucket := m.table[hash] + for i, e := range bucket { + if e.key != nil && types.Identical(key, e.key) { + // We can't compact the bucket as it + // would disturb iterators. + bucket[i] = entry{} + m.length-- + return true + } + } + } + return false +} + +// At returns the map entry for the given key. +// The result is nil if the entry is not present. +// +func (m *Map) At(key types.Type) interface{} { + if m != nil && m.table != nil { + for _, e := range m.table[m.hasher.Hash(key)] { + if e.key != nil && types.Identical(key, e.key) { + return e.value + } + } + } + return nil +} + +// Set sets the map entry for key to val, +// and returns the previous entry, if any. +func (m *Map) Set(key types.Type, value interface{}) (prev interface{}) { + if m.table != nil { + hash := m.hasher.Hash(key) + bucket := m.table[hash] + var hole *entry + for i, e := range bucket { + if e.key == nil { + hole = &bucket[i] + } else if types.Identical(key, e.key) { + prev = e.value + bucket[i].value = value + return + } + } + + if hole != nil { + *hole = entry{key, value} // overwrite deleted entry + } else { + m.table[hash] = append(bucket, entry{key, value}) + } + } else { + if m.hasher.memo == nil { + m.hasher = MakeHasher() + } + hash := m.hasher.Hash(key) + m.table = map[uint32][]entry{hash: {entry{key, value}}} + } + + m.length++ + return +} + +// Len returns the number of map entries. +func (m *Map) Len() int { + if m != nil { + return m.length + } + return 0 +} + +// Iterate calls function f on each entry in the map in unspecified order. +// +// If f should mutate the map, Iterate provides the same guarantees as +// Go maps: if f deletes a map entry that Iterate has not yet reached, +// f will not be invoked for it, but if f inserts a map entry that +// Iterate has not yet reached, whether or not f will be invoked for +// it is unspecified. +// +func (m *Map) Iterate(f func(key types.Type, value interface{})) { + if m != nil { + for _, bucket := range m.table { + for _, e := range bucket { + if e.key != nil { + f(e.key, e.value) + } + } + } + } +} + +// Keys returns a new slice containing the set of map keys. +// The order is unspecified. +func (m *Map) Keys() []types.Type { + keys := make([]types.Type, 0, m.Len()) + m.Iterate(func(key types.Type, _ interface{}) { + keys = append(keys, key) + }) + return keys +} + +func (m *Map) toString(values bool) string { + if m == nil { + return "{}" + } + var buf bytes.Buffer + fmt.Fprint(&buf, "{") + sep := "" + m.Iterate(func(key types.Type, value interface{}) { + fmt.Fprint(&buf, sep) + sep = ", " + fmt.Fprint(&buf, key) + if values { + fmt.Fprintf(&buf, ": %q", value) + } + }) + fmt.Fprint(&buf, "}") + return buf.String() +} + +// String returns a string representation of the map's entries. +// Values are printed using fmt.Sprintf("%v", v). +// Order is unspecified. +// +func (m *Map) String() string { + return m.toString(true) +} + +// KeysString returns a string representation of the map's key set. +// Order is unspecified. +// +func (m *Map) KeysString() string { + return m.toString(false) +} + +//////////////////////////////////////////////////////////////////////// +// Hasher + +// A Hasher maps each type to its hash value. +// For efficiency, a hasher uses memoization; thus its memory +// footprint grows monotonically over time. +// Hashers are not thread-safe. +// Hashers have reference semantics. +// Call MakeHasher to create a Hasher. +type Hasher struct { + memo map[types.Type]uint32 +} + +// MakeHasher returns a new Hasher instance. +func MakeHasher() Hasher { + return Hasher{make(map[types.Type]uint32)} +} + +// Hash computes a hash value for the given type t such that +// Identical(t, t') => Hash(t) == Hash(t'). +func (h Hasher) Hash(t types.Type) uint32 { + hash, ok := h.memo[t] + if !ok { + hash = h.hashFor(t) + h.memo[t] = hash + } + return hash +} + +// hashString computes the Fowler–Noll–Vo hash of s. +func hashString(s string) uint32 { + var h uint32 + for i := 0; i < len(s); i++ { + h ^= uint32(s[i]) + h *= 16777619 + } + return h +} + +// hashFor computes the hash of t. +func (h Hasher) hashFor(t types.Type) uint32 { + // See Identical for rationale. + switch t := t.(type) { + case *types.Basic: + return uint32(t.Kind()) + + case *types.Array: + return 9043 + 2*uint32(t.Len()) + 3*h.Hash(t.Elem()) + + case *types.Slice: + return 9049 + 2*h.Hash(t.Elem()) + + case *types.Struct: + var hash uint32 = 9059 + for i, n := 0, t.NumFields(); i < n; i++ { + f := t.Field(i) + if f.Anonymous() { + hash += 8861 + } + hash += hashString(t.Tag(i)) + hash += hashString(f.Name()) // (ignore f.Pkg) + hash += h.Hash(f.Type()) + } + return hash + + case *types.Pointer: + return 9067 + 2*h.Hash(t.Elem()) + + case *types.Signature: + var hash uint32 = 9091 + if t.Variadic() { + hash *= 8863 + } + return hash + 3*h.hashTuple(t.Params()) + 5*h.hashTuple(t.Results()) + + case *types.Interface: + var hash uint32 = 9103 + for i, n := 0, t.NumMethods(); i < n; i++ { + // See go/types.identicalMethods for rationale. + // Method order is not significant. + // Ignore m.Pkg(). + m := t.Method(i) + hash += 3*hashString(m.Name()) + 5*h.Hash(m.Type()) + } + return hash + + case *types.Map: + return 9109 + 2*h.Hash(t.Key()) + 3*h.Hash(t.Elem()) + + case *types.Chan: + return 9127 + 2*uint32(t.Dir()) + 3*h.Hash(t.Elem()) + + case *types.Named: + // Not safe with a copying GC; objects may move. + return uint32(reflect.ValueOf(t.Obj()).Pointer()) + + case *types.Tuple: + return h.hashTuple(t) + } + panic(t) +} + +func (h Hasher) hashTuple(tuple *types.Tuple) uint32 { + // See go/types.identicalTypes for rationale. + n := tuple.Len() + var hash uint32 = 9137 + 2*uint32(n) + for i := 0; i < n; i++ { + hash += 3 * h.Hash(tuple.At(i).Type()) + } + return hash +} diff --git a/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go b/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go new file mode 100644 index 00000000..32084610 --- /dev/null +++ b/vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go @@ -0,0 +1,72 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// This file implements a cache of method sets. + +package typeutil + +import ( + "go/types" + "sync" +) + +// A MethodSetCache records the method set of each type T for which +// MethodSet(T) is called so that repeat queries are fast. +// The zero value is a ready-to-use cache instance. +type MethodSetCache struct { + mu sync.Mutex + named map[*types.Named]struct{ value, pointer *types.MethodSet } // method sets for named N and *N + others map[types.Type]*types.MethodSet // all other types +} + +// MethodSet returns the method set of type T. It is thread-safe. +// +// If cache is nil, this function is equivalent to types.NewMethodSet(T). +// Utility functions can thus expose an optional *MethodSetCache +// parameter to clients that care about performance. +// +func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet { + if cache == nil { + return types.NewMethodSet(T) + } + cache.mu.Lock() + defer cache.mu.Unlock() + + switch T := T.(type) { + case *types.Named: + return cache.lookupNamed(T).value + + case *types.Pointer: + if N, ok := T.Elem().(*types.Named); ok { + return cache.lookupNamed(N).pointer + } + } + + // all other types + // (The map uses pointer equivalence, not type identity.) + mset := cache.others[T] + if mset == nil { + mset = types.NewMethodSet(T) + if cache.others == nil { + cache.others = make(map[types.Type]*types.MethodSet) + } + cache.others[T] = mset + } + return mset +} + +func (cache *MethodSetCache) lookupNamed(named *types.Named) struct{ value, pointer *types.MethodSet } { + if cache.named == nil { + cache.named = make(map[*types.Named]struct{ value, pointer *types.MethodSet }) + } + // Avoid recomputing mset(*T) for each distinct Pointer + // instance whose underlying type is a named type. + msets, ok := cache.named[named] + if !ok { + msets.value = types.NewMethodSet(named) + msets.pointer = types.NewMethodSet(types.NewPointer(named)) + cache.named[named] = msets + } + return msets +} diff --git a/vendor/golang.org/x/tools/go/types/typeutil/ui.go b/vendor/golang.org/x/tools/go/types/typeutil/ui.go new file mode 100644 index 00000000..9849c24c --- /dev/null +++ b/vendor/golang.org/x/tools/go/types/typeutil/ui.go @@ -0,0 +1,52 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package typeutil + +// This file defines utilities for user interfaces that display types. + +import "go/types" + +// IntuitiveMethodSet returns the intuitive method set of a type T, +// which is the set of methods you can call on an addressable value of +// that type. +// +// The result always contains MethodSet(T), and is exactly MethodSet(T) +// for interface types and for pointer-to-concrete types. +// For all other concrete types T, the result additionally +// contains each method belonging to *T if there is no identically +// named method on T itself. +// +// This corresponds to user intuition about method sets; +// this function is intended only for user interfaces. +// +// The order of the result is as for types.MethodSet(T). +// +func IntuitiveMethodSet(T types.Type, msets *MethodSetCache) []*types.Selection { + isPointerToConcrete := func(T types.Type) bool { + ptr, ok := T.(*types.Pointer) + return ok && !types.IsInterface(ptr.Elem()) + } + + var result []*types.Selection + mset := msets.MethodSet(T) + if types.IsInterface(T) || isPointerToConcrete(T) { + for i, n := 0, mset.Len(); i < n; i++ { + result = append(result, mset.At(i)) + } + } else { + // T is some other concrete type. + // Report methods of T and *T, preferring those of T. + pmset := msets.MethodSet(types.NewPointer(T)) + for i, n := 0, pmset.Len(); i < n; i++ { + meth := pmset.At(i) + if m := mset.Lookup(meth.Obj().Pkg(), meth.Obj().Name()); m != nil { + meth = m + } + result = append(result, meth) + } + + } + return result +} |