blob: 6d9399687281134b22fd791ea54bfc4cc2588d40 [file] [log] [blame]
// 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(printerconfigFix)
}
var printerconfigFix = fix{
name: "printerconfig",
date: "2012-12-11",
f: printerconfig,
desc: `Add element keys to Config composite literals.`,
}
func printerconfig(f *ast.File) bool {
if !imports(f, "go/printer") {
return false
}
fixed := false
walk(f, func(n interface{}) {
cl, ok := n.(*ast.CompositeLit)
if !ok {
return
}
se, ok := cl.Type.(*ast.SelectorExpr)
if !ok {
return
}
if !isTopName(se.X, "printer") || se.Sel == nil {
return
}
if ss := se.Sel.String(); ss == "Config" {
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("Mode"),
Value: e,
}
case 1:
cl.Elts[i] = &ast.KeyValueExpr{
Key: ast.NewIdent("Tabwidth"),
Value: e,
}
}
fixed = true
}
}
})
return fixed
}