mirror of
https://github.com/golang/go
synced 2024-11-24 09:20:02 -07:00
ceb982e004
In the first very rough draft of the reordering code that was introduced in the Go 1.3 cycle, the pre-allocated temporary for a ... argument was held in n->right. It moved to n->alloc but the code avoiding n->right was left behind in order.c. In copy(x, <-c), the receive is in n->right and must be processed. Delete the special case code, removing the bug. Fixes #8039. LGTM=iant R=golang-codereviews, iant CC=golang-codereviews https://golang.org/cl/100820044
24 lines
415 B
Go
24 lines
415 B
Go
// run
|
|
|
|
// Copyright 2014 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.
|
|
|
|
// issue 8039. defer copy(x, <-c) did not rewrite <-c properly.
|
|
|
|
package main
|
|
|
|
func f(s []int) {
|
|
c := make(chan []int, 1)
|
|
c <- []int{1}
|
|
defer copy(s, <-c)
|
|
}
|
|
|
|
func main() {
|
|
x := make([]int, 1)
|
|
f(x)
|
|
if x[0] != 1 {
|
|
println("BUG", x[0])
|
|
}
|
|
}
|