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Source file test/fixedbugs/issue15975.go

Documentation: test/fixedbugs

  // 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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