blob: aaad34825983224f9fe52411c2f47b5e1133b11c [file] [log] [blame]
// Copyright 2011 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"
"strings"
)
var signalFix = fix{
"signal",
signal,
`Adapt code to types moved from os/signal to signal.
http://codereview.appspot.com/4437091
`,
}
func signal(f *ast.File) (fixed bool) {
if !imports(f, "os/signal") {
return
}
walk(f, func(n interface{}) {
s, ok := n.(*ast.SelectorExpr)
if !ok || !isTopName(s.X, "signal") {
return
}
sel := s.Sel.String()
if sel == "Signal" || sel == "UnixSignal" || strings.HasPrefix(sel, "SIG") {
s.X = &ast.Ident{Name: "os"}
fixed = true
}
})
if fixed {
addImport(f, "os")
if !usesImport(f, "os/signal") {
deleteImport(f, "os/signal")
}
}
return
}