mirror of
https://github.com/golang/go
synced 2024-11-22 02:44:39 -07:00
50 lines
850 B
Go
50 lines
850 B
Go
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// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"runtime"
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"strings"
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)
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var t *struct {
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c chan int
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}
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var c chan int
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func f() {
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select {
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case <-t.c: // THIS IS LINE 22
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break
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case <-c:
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break
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}
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}
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func main() {
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defer func() {
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recover()
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for i := 0;; i++ {
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pc, file, line, ok := runtime.Caller(i)
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if !ok {
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print("BUG: bug347: cannot find caller\n")
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return
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}
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if !strings.Contains(file, "bug347.go") || runtime.FuncForPC(pc).Name() != "main.f" {
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// walk past runtime frames
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continue
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}
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if line != 22 {
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print("BUG: bug347: panic at ", file, ":", line, " in ", runtime.FuncForPC(pc).Name(), "\n")
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}
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return
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}
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}()
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f()
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}
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