// run | |
// Copyright 2017 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. | |
// Issue 19710: mishandled defer delete(...) | |
package main | |
func main() { | |
if n := len(f()); n != 0 { | |
println("got", n, "want 0") | |
panic("bad defer delete") | |
} | |
} | |
func f() map[int]bool { | |
m := map[int]bool{} | |
for i := 0; i < 3; i++ { | |
m[i] = true | |
defer delete(m, i) | |
} | |
return m | |
} |