7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// Copyright 2009 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 patch
|
|
|
|
import "os"
|
|
|
|
// An Op is a single operation to execute to apply a patch.
|
|
type Op struct {
|
|
Verb Verb // action
|
|
Src string // source file
|
|
Dst string // destination file
|
|
Mode int // mode for destination (if non-zero)
|
|
Data []byte // data for destination (if non-nil)
|
|
}
|
|
|
|
// Apply applies the patch set to the files named in the patch set,
|
|
// constructing an in-memory copy of the new file state.
|
|
// It is the client's job to write the changes to the file system
|
|
// if desired.
|
|
//
|
|
// The function readFile should return the contents of the named file.
|
|
// Typically this function will be io.ReadFile.
|
|
//
|
|
func (set *Set) Apply(readFile func(string) ([]byte, os.Error)) ([]Op, os.Error) {
|
|
op := make([]Op, len(set.File))
|
|
|
|
for i, f := range set.File {
|
|
o := &op[i]
|
|
o.Verb = f.Verb
|
|
o.Src = f.Src
|
|
o.Dst = f.Dst
|
|
o.Mode = f.NewMode
|
|
if f.Diff != NoDiff || o.Verb != Edit {
|
|
// Clients assume o.Data == nil means no data diff.
|
|
// Start with a non-nil data.
|
|
var old []byte = make([]byte, 0) // not nil
|
|
var err os.Error
|
|
if f.Src != "" {
|
|
old, err = readFile(f.Src)
|
|
if err != nil {
|
|
return nil, &os.PathError{string(f.Verb), f.Src, err}
|
|
}
|
|
}
|
|
o.Data, err = f.Diff.Apply(old)
|
|
if err != nil {
|
|
return nil, &os.PathError{string(f.Verb), f.Src, err}
|
|
}
|
|
}
|
|
}
|
|
|
|
return op, nil
|
|
}
|