// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import "go/ast"
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func init() {
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register(printerconfigFix)
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}
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var printerconfigFix = fix{
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name: "printerconfig",
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date: "2012-12-11",
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f: printerconfig,
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desc: `Add element keys to Config composite literals.`,
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}
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func printerconfig(f *ast.File) bool {
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if !imports(f, "go/printer") {
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return false
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}
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fixed := false
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walk(f, func(n interface{}) {
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cl, ok := n.(*ast.CompositeLit)
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if !ok {
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return
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}
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se, ok := cl.Type.(*ast.SelectorExpr)
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if !ok {
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return
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}
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if !isTopName(se.X, "printer") || se.Sel == nil {
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return
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}
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if ss := se.Sel.String(); ss == "Config" {
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for i, e := range cl.Elts {
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if _, ok := e.(*ast.KeyValueExpr); ok {
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break
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}
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switch i {
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case 0:
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cl.Elts[i] = &ast.KeyValueExpr{
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Key: ast.NewIdent("Mode"),
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Value: e,
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}
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case 1:
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cl.Elts[i] = &ast.KeyValueExpr{
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Key: ast.NewIdent("Tabwidth"),
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Value: e,
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}
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}
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fixed = true
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}
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}
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})
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return fixed
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}
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