go bug347 源码
golang bug347 代码
文件路径：/test/fixedbugs/bug347.go
// run
// Copyright 2011 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
import (
"runtime"
"strings"
)
var t *struct {
c chan int
}
var c chan int
func f() {
select {
case <-t.c: // THIS IS LINE 22
break
case <-c:
break
}
}
func main() {
defer func() {
recover()
for i := 0;; i++ {
pc, file, line, ok := runtime.Caller(i)
if !ok {
print("BUG: bug347: cannot find caller\n")
return
}
if !strings.Contains(file, "bug347.go") || runtime.FuncForPC(pc).Name() != "main.f" {
// walk past runtime frames
continue
}
if line != 22 {
print("BUG: bug347: panic at ", file, ":", line, " in ", runtime.FuncForPC(pc).Name(), "\n")
}
return
}
}()
f()
}
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