mirror of https://go.googlesource.com/go
33 lines
471 B
Go
33 lines
471 B
Go
// run
|
|
|
|
// Copyright 2018 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
|
|
|
|
func main() {
|
|
m := map[interface{}]int{}
|
|
k := []int{}
|
|
|
|
mustPanic(func() {
|
|
_ = m[k]
|
|
})
|
|
mustPanic(func() {
|
|
_, _ = m[k]
|
|
})
|
|
mustPanic(func() {
|
|
delete(m, k)
|
|
})
|
|
}
|
|
|
|
func mustPanic(f func()) {
|
|
defer func() {
|
|
r := recover()
|
|
if r == nil {
|
|
panic("didn't panic")
|
|
}
|
|
}()
|
|
f()
|
|
}
|