modernc.org/gc@v1.0.1-0.20240304020402-f0dba7c97c2b/testdata/errchk/test/fixedbugs/issue8336.go (about)

     1  // run
     2  
     3  // Copyright 2014 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  // Issue 8336. Order of evaluation of receive channels in select.
     8  
     9  package main
    10  
    11  type X struct {
    12  	c chan int
    13  }
    14  
    15  func main() {
    16  	defer func() {
    17  		recover()
    18  	}()
    19  	var x *X
    20  	select {
    21  	case <-x.c: // should fault and panic before foo is called
    22  	case <-foo():
    23  	}
    24  }
    25  
    26  func foo() chan int {
    27  	println("BUG: foo must not be called")
    28  	return make(chan int)
    29  }