+++ /dev/null
-// 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 contains support functions for parsing .go files
-// accessed via godoc's file system fs.
-
-package godoc
-
-import (
- "bytes"
- "go/ast"
- "go/parser"
- "go/token"
- pathpkg "path"
-
- "golang.org/x/tools/godoc/vfs"
-)
-
-var linePrefix = []byte("//line ")
-
-// This function replaces source lines starting with "//line " with a blank line.
-// It does this irrespective of whether the line is truly a line comment or not;
-// e.g., the line may be inside a string, or a /*-style comment; however that is
-// rather unlikely (proper testing would require a full Go scan which we want to
-// avoid for performance).
-func replaceLinePrefixCommentsWithBlankLine(src []byte) {
- for {
- i := bytes.Index(src, linePrefix)
- if i < 0 {
- break // we're done
- }
- // 0 <= i && i+len(linePrefix) <= len(src)
- if i == 0 || src[i-1] == '\n' {
- // at beginning of line: blank out line
- for i < len(src) && src[i] != '\n' {
- src[i] = ' '
- i++
- }
- } else {
- // not at beginning of line: skip over prefix
- i += len(linePrefix)
- }
- // i <= len(src)
- src = src[i:]
- }
-}
-
-func (c *Corpus) parseFile(fset *token.FileSet, filename string, mode parser.Mode) (*ast.File, error) {
- src, err := vfs.ReadFile(c.fs, filename)
- if err != nil {
- return nil, err
- }
-
- // Temporary ad-hoc fix for issue 5247.
- // TODO(gri,dmitshur) Remove this in favor of a better fix, eventually (see issue 32092).
- replaceLinePrefixCommentsWithBlankLine(src)
-
- return parser.ParseFile(fset, filename, src, mode)
-}
-
-func (c *Corpus) parseFiles(fset *token.FileSet, relpath string, abspath string, localnames []string) (map[string]*ast.File, error) {
- files := make(map[string]*ast.File)
- for _, f := range localnames {
- absname := pathpkg.Join(abspath, f)
- file, err := c.parseFile(fset, absname, parser.ParseComments)
- if err != nil {
- return nil, err
- }
- files[pathpkg.Join(relpath, f)] = file
- }
-
- return files, nil
-}