gcc/testsuite/go.test/test/fixedbugs/issue6055.go

   1 // run
   2
   3 // Copyright 2013 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 package main
   8
   9 import "runtime"
  10
  11 type Closer interface {
  12         Close()
  13 }
  14
  15 func nilInterfaceDeferCall() {
  16         defer func() {
  17                 // make sure a traceback happens with jmpdefer on the stack
  18                 runtime.GC()
  19         }()
  20         var x Closer
  21         defer x.Close()
  22 }
  23
  24 func shouldPanic(f func()) {
  25         defer func() {
  26                 if recover() == nil {
  27                         panic("did not panic")
  28                 }
  29         }()
  30         f()
  31 }
  32
  33 func main() {
  34         shouldPanic(nilInterfaceDeferCall)
  35 }