go issue43111 源码
golang issue43111 代码
文件路径：/test/fixedbugs/issue43111.go
// run
// Copyright 2020 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 ch chan int
var x int
func f() int {
close(ch)
ch = nil
return 0
}
func g() int {
ch = nil
x = 0
return 0
}
func main() {
var nilch chan int
var v int
var ok bool
_, _ = v, ok
ch = make(chan int)
select {
case <-ch:
case nilch <- f():
}
ch = make(chan int)
select {
case v = <-ch:
case nilch <- f():
}
ch = make(chan int)
select {
case v := <-ch: _ = v
case nilch <- f():
}
ch = make(chan int)
select {
case v, ok = <-ch:
case nilch <- f():
}
ch = make(chan int)
select {
case v, ok := <-ch: _, _ = v, ok
case nilch <- f():
}
ch1 := make(chan int, 1)
ch = ch1
x = 42
select {
case ch <- x:
case nilch <- g():
}
if got := <-ch1; got != 42 {
panic(got)
}
}
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