mirror of
https://github.com/golang/go
synced 2024-11-26 18:06:55 -07:00
50 lines
882 B
Go
50 lines
882 B
Go
// run
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// Copyright 2012 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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"fmt"
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"runtime"
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"strings"
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)
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type T struct {
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val int
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}
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func main() {
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defer expectError(22)
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var pT *T
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switch pT.val { // error should be here - line 22
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case 0:
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fmt.Println("0")
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case 1: // used to show up here instead
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fmt.Println("1")
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case 2:
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fmt.Println("2")
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}
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fmt.Println("finished")
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}
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func expectError(expectLine int) {
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if recover() == nil {
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panic("did not crash")
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}
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for i := 1;; i++ {
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_, file, line, ok := runtime.Caller(i)
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if !ok {
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panic("cannot find issue4562.go on stack")
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}
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if strings.HasSuffix(file, "issue4562.go") {
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if line != expectLine {
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panic(fmt.Sprintf("crashed at line %d, wanted line %d", line, expectLine))
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}
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break
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}
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}
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}
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