mirror of
https://github.com/golang/go
synced 2024-11-22 12:14:42 -07:00
052c942e20
Previously merely printing an error would cause the golden file comparison (in 'bash run') to fail, but that is no longer the case with the new run.go driver. R=iant CC=golang-dev https://golang.org/cl/7310087
83 lines
1.6 KiB
Go
83 lines
1.6 KiB
Go
// run
|
|
|
|
// Copyright 2010 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.
|
|
|
|
// Test recovering from runtime errors.
|
|
|
|
package main
|
|
|
|
import (
|
|
"runtime"
|
|
"strings"
|
|
)
|
|
|
|
var didbug bool
|
|
|
|
func bug() {
|
|
if didbug {
|
|
return
|
|
}
|
|
println("BUG")
|
|
didbug = true
|
|
}
|
|
|
|
func check(name string, f func(), err string) {
|
|
defer func() {
|
|
v := recover()
|
|
if v == nil {
|
|
bug()
|
|
println(name, "did not panic")
|
|
return
|
|
}
|
|
runt, ok := v.(runtime.Error)
|
|
if !ok {
|
|
bug()
|
|
println(name, "panicked but not with runtime.Error")
|
|
return
|
|
}
|
|
s := runt.Error()
|
|
if strings.Index(s, err) < 0 {
|
|
bug()
|
|
println(name, "panicked with", s, "not", err)
|
|
return
|
|
}
|
|
}()
|
|
|
|
f()
|
|
}
|
|
|
|
func main() {
|
|
var x int
|
|
var x64 int64
|
|
var p *[10]int
|
|
var q *[10000]int
|
|
var i int
|
|
|
|
check("int-div-zero", func() { println(1 / x) }, "integer divide by zero")
|
|
check("int64-div-zero", func() { println(1 / x64) }, "integer divide by zero")
|
|
|
|
check("nil-deref", func() { println(p[0]) }, "nil pointer dereference")
|
|
check("nil-deref-1", func() { println(p[1]) }, "nil pointer dereference")
|
|
check("nil-deref-big", func() { println(q[5000]) }, "nil pointer dereference")
|
|
|
|
i = 99999
|
|
var sl []int
|
|
check("array-bounds", func() { println(p[i]) }, "index out of range")
|
|
check("slice-bounds", func() { println(sl[i]) }, "index out of range")
|
|
|
|
var inter interface{}
|
|
inter = 1
|
|
check("type-concrete", func() { println(inter.(string)) }, "int, not string")
|
|
check("type-interface", func() { println(inter.(m)) }, "missing method m")
|
|
|
|
if didbug {
|
|
panic("recover3")
|
|
}
|
|
}
|
|
|
|
type m interface {
|
|
m()
|
|
}
|