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// Copyright 2012 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 main
import "go/ast"
func init() {
register(netipv6zoneFix)
}
var netipv6zoneFix = fix{
name: "netipv6zone",
date: "2012-11-26",
f: netipv6zone,
desc: `Adapt element key to IPAddr, UDPAddr or TCPAddr composite literals.
https://codereview.appspot.com/6849045/
`,
}
func netipv6zone(f *ast.File) bool {
if !imports(f, "net") {
return false
}
fixed := false
walk(f, func(n any) {
cl, ok := n.(*ast.CompositeLit)
if !ok {
return
}
se, ok := cl.Type.(*ast.SelectorExpr)
if !ok {
return
}
if !isTopName(se.X, "net") || se.Sel == nil {
return
}
switch ss := se.Sel.String(); ss {
case "IPAddr", "UDPAddr", "TCPAddr":
for i, e := range cl.Elts {
if _, ok := e.(*ast.KeyValueExpr); ok {
break
}
switch i {
case 0:
cl.Elts[i] = &ast.KeyValueExpr{
Key: ast.NewIdent("IP"),
Value: e,
}
case 1:
if elit, ok := e.(*ast.BasicLit); ok && elit.Value == "0" {
cl.Elts = append(cl.Elts[:i], cl.Elts[i+1:]...)
} else {
cl.Elts[i] = &ast.KeyValueExpr{
Key: ast.NewIdent("Port"),
Value: e,
}
}
}
fixed = true
}
}
})
return fixed
}