mirror of
https://github.com/golang/go
synced 2024-11-23 07:00:05 -07:00
50 lines
882 B
Go
50 lines
882 B
Go
// run
|
|
|
|
// Copyright 2012 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 (
|
|
"fmt"
|
|
"runtime"
|
|
"strings"
|
|
)
|
|
|
|
type T struct {
|
|
val int
|
|
}
|
|
|
|
func main() {
|
|
defer expectError(22)
|
|
var pT *T
|
|
switch pT.val { // error should be here - line 22
|
|
case 0:
|
|
fmt.Println("0")
|
|
case 1: // used to show up here instead
|
|
fmt.Println("1")
|
|
case 2:
|
|
fmt.Println("2")
|
|
}
|
|
fmt.Println("finished")
|
|
}
|
|
|
|
func expectError(expectLine int) {
|
|
if recover() == nil {
|
|
panic("did not crash")
|
|
}
|
|
for i := 1;; i++ {
|
|
_, file, line, ok := runtime.Caller(i)
|
|
if !ok {
|
|
panic("cannot find issue4562.go on stack")
|
|
}
|
|
if strings.HasSuffix(file, "issue4562.go") {
|
|
if line != expectLine {
|
|
panic(fmt.Sprintf("crashed at line %d, wanted line %d", line, expectLine))
|
|
}
|
|
break
|
|
}
|
|
}
|
|
}
|