mirror of
https://github.com/golang/go
synced 2024-11-23 03:50:03 -07:00
37 lines
572 B
Go
37 lines
572 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2016 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
|
||
|
|
|
||
|
|
var fail bool
|
||
|
|
|
||
|
|
type Closer interface {
|
||
|
|
Close()
|
||
|
|
}
|
||
|
|
|
||
|
|
func nilInterfaceDeferCall() {
|
||
|
|
var x Closer
|
||
|
|
defer x.Close()
|
||
|
|
// if it panics when evaluating x.Close, it should not reach here
|
||
|
|
fail = true
|
||
|
|
}
|
||
|
|
|
||
|
|
func shouldPanic(f func()) {
|
||
|
|
defer func() {
|
||
|
|
if recover() == nil {
|
||
|
|
panic("did not panic")
|
||
|
|
}
|
||
|
|
}()
|
||
|
|
f()
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
shouldPanic(nilInterfaceDeferCall)
|
||
|
|
if fail {
|
||
|
|
panic("fail")
|
||
|
|
}
|
||
|
|
}
|