1 // run 2 3 // Copyright 2017 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Issue 19710: mishandled defer delete(...) 8 9 package main 10 11 func main() { 12 if n := len(f()); n != 0 { 13 println("got", n, "want 0") 14 panic("bad defer delete") 15 } 16 } 17 18 func f() map[int]bool { 19 m := map[int]bool{} 20 for i := 0; i < 3; i++ { 21 m[i] = true 22 defer delete(m, i) 23 } 24 return m 25 } 26
