diff options
author | Michael Muré <batolettre@gmail.com> | 2020-02-05 22:03:19 +0100 |
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committer | Michael Muré <batolettre@gmail.com> | 2020-02-05 22:33:03 +0100 |
commit | 1d4bb7ceb0cef79d68df0bacc913b01e40e6ddd6 (patch) | |
tree | e088b0fa43058afde1db71541d8fcb4b94905d6e /vendor/golang.org/x/tools/go/gcexportdata | |
parent | f093be96e98284580d61664adecd0a2ff8b354e4 (diff) | |
download | git-bug-1d4bb7ceb0cef79d68df0bacc913b01e40e6ddd6.tar.gz |
migrate to go modules
Diffstat (limited to 'vendor/golang.org/x/tools/go/gcexportdata')
-rw-r--r-- | vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go | 109 | ||||
-rw-r--r-- | vendor/golang.org/x/tools/go/gcexportdata/importer.go | 73 | ||||
-rw-r--r-- | vendor/golang.org/x/tools/go/gcexportdata/main.go | 99 |
3 files changed, 0 insertions, 281 deletions
diff --git a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go deleted file mode 100644 index 98b3987b..00000000 --- a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go +++ /dev/null @@ -1,109 +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 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://golang.org/issue/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 deleted file mode 100644 index efe221e7..00000000 --- a/vendor/golang.org/x/tools/go/gcexportdata/importer.go +++ /dev/null @@ -1,73 +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 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 deleted file mode 100644 index 2713dce6..00000000 --- a/vendor/golang.org/x/tools/go/gcexportdata/main.go +++ /dev/null @@ -1,99 +0,0 @@ -// 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)) - } - } - } -} |