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https://github.com/golang/go
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37 lines
572 B
Go
37 lines
572 B
Go
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// run
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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var fail bool
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type Closer interface {
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Close()
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}
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func nilInterfaceDeferCall() {
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var x Closer
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defer x.Close()
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// if it panics when evaluating x.Close, it should not reach here
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fail = true
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}
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func shouldPanic(f func()) {
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defer func() {
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if recover() == nil {
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panic("did not panic")
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}
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}()
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f()
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}
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func main() {
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shouldPanic(nilInterfaceDeferCall)
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if fail {
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panic("fail")
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}
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}
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