modernc.org/gc@v1.0.1-0.20240304020402-f0dba7c97c2b/testdata/errchk/test/fixedbugs/issue8039.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 8039. defer copy(x, <-c) did not rewrite <-c properly.
     8  
     9  package main
    10  
    11  func f(s []int) {
    12  	c := make(chan []int, 1)
    13  	c <- []int{1}
    14  	defer copy(s, <-c)
    15  }
    16  
    17  func main() {
    18  	x := make([]int, 1)
    19  	f(x)
    20  	if x[0] != 1 {
    21  		println("BUG", x[0])
    22  	}
    23  }