mirror of
https://github.com/golang/go
synced 2024-11-14 15:10:54 -07:00
ed15e82413
Reorg map flags a bit so we don't need any extra space for the extra flag. Fixes #23734 Change-Id: I436812156240ae90de53d0943fe1aabf3ea37417 Reviewed-on: https://go-review.googlesource.com/c/155918 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
33 lines
471 B
Go
33 lines
471 B
Go
// run
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// Copyright 2018 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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func main() {
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m := map[interface{}]int{}
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k := []int{}
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mustPanic(func() {
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_ = m[k]
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})
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mustPanic(func() {
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_, _ = m[k]
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})
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mustPanic(func() {
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delete(m, k)
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})
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}
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func mustPanic(f func()) {
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defer func() {
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r := recover()
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if r == nil {
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panic("didn't panic")
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}
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}()
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f()
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}
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