patch

README

Syntax-aware Patch

This package provides an intuitive way to patch the go code.

The purpose is to power xgo's patching mechanism.

See #169.

Examples

You can find more examples in the testdata directory.

The following example is taken from ./testdata/hello_world/.

original.go:

package main

import "fmt"

func main() {
	fmt.Printf("hello world\n")
}

original.go.patch:

package main

func main(){
    //append <id> fmt.Printf("the world is patched\n")
    fmt.Printf("hello world\n")
}

result.go:

package main

import "fmt"

func main() {
	fmt.Printf("hello world\n")
	fmt.Printf("the world is patched\n")
}

Documentation

Index

• Constants
• func Patch(old string, patch string) (string, error)
• func PatchFile(srcFile string, patchFile string) (string, error)
• type PatchContent
• type PatchLines

Constants

const DOUBLE_SLASH = "//"

Functions

func Patch

func Patch(old string, patch string) (string, error)

see https://github.com/xhd2015/xgo/issues/169#issuecomment-2241407305

func PatchFile

func PatchFile(srcFile string, patchFile string) (string, error)

Types

type PatchContent

type PatchContent struct {
	Prepend *PatchLines
	Append  *PatchLines
	Replace *PatchLines
}

type PatchLines

type PatchLines struct {
	ID    string
	Lines []string
}