github.com/shijuvar/go@v0.0.0-20141209052335-e8f13700b70c/src/go/token/serialize.go (about)

     1  // Copyright 2011 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package token
     6  
     7  type serializedFile struct {
     8  	// fields correspond 1:1 to fields with same (lower-case) name in File
     9  	Name  string
    10  	Base  int
    11  	Size  int
    12  	Lines []int
    13  	Infos []lineInfo
    14  }
    15  
    16  type serializedFileSet struct {
    17  	Base  int
    18  	Files []serializedFile
    19  }
    20  
    21  // Read calls decode to deserialize a file set into s; s must not be nil.
    22  func (s *FileSet) Read(decode func(interface{}) error) error {
    23  	var ss serializedFileSet
    24  	if err := decode(&ss); err != nil {
    25  		return err
    26  	}
    27  
    28  	s.mutex.Lock()
    29  	s.base = ss.Base
    30  	files := make([]*File, len(ss.Files))
    31  	for i := 0; i < len(ss.Files); i++ {
    32  		f := &ss.Files[i]
    33  		files[i] = &File{s, f.Name, f.Base, f.Size, f.Lines, f.Infos}
    34  	}
    35  	s.files = files
    36  	s.last = nil
    37  	s.mutex.Unlock()
    38  
    39  	return nil
    40  }
    41  
    42  // Write calls encode to serialize the file set s.
    43  func (s *FileSet) Write(encode func(interface{}) error) error {
    44  	var ss serializedFileSet
    45  
    46  	s.mutex.Lock()
    47  	ss.Base = s.base
    48  	files := make([]serializedFile, len(s.files))
    49  	for i, f := range s.files {
    50  		files[i] = serializedFile{f.name, f.base, f.size, f.lines, f.infos}
    51  	}
    52  	ss.Files = files
    53  	s.mutex.Unlock()
    54  
    55  	return encode(ss)
    56  }