go issue15975 源码
golang issue15975 代码
文件路径：/test/fixedbugs/issue15975.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")
}
}
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