github.com/stingnevermore/go@v0.0.0-20180120041312-3810f5bfed72/test/struct0.go (about)

     1  // run
     2  
     3  // Copyright 2011 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  // Test zero length structs.
     8  // Used to not be evaluated.
     9  // Issue 2232.
    10  
    11  package main
    12  
    13  func recv(c chan interface{}) struct{} {
    14  	return (<-c).(struct{})
    15  }
    16  
    17  var m = make(map[interface{}]int)
    18  
    19  func recv1(c chan interface{}) {
    20  	defer rec()
    21  	m[(<-c).(struct{})] = 0
    22  }
    23  
    24  func rec() {
    25  	recover()
    26  }
    27  
    28  func main() {
    29  	c := make(chan interface{})
    30  	go recv(c)
    31  	c <- struct{}{}
    32  	go recv1(c)
    33  	c <- struct{}{}
    34  }