文件操作 - bug474.go
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文件: /usr/share/go-1.23/test/fixedbugs/bug474.go
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// run // Copyright 2013 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. // Bug in method values: escape analysis was off. package main import "sync" var called = false type T struct { once sync.Once } func (t *T) M() { called = true } func main() { var t T t.once.Do(t.M) if !called { panic("not called") } }
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