1 files changed, 9 insertions, 349 deletions
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
-}