go map 源码
golang map 代码
文件路径：/test/abi/map.go
// run
// Copyright 2021 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 "runtime"
type T [10]int
var m map[*T]int
//go:noinline
func F() {
m = map[*T]int{
K(): V(), // the key temp should be live across call to V
}
}
//go:noinline
func V() int { runtime.GC(); runtime.GC(); runtime.GC(); return 123 }
//go:noinline
func K() *T {
p := new(T)
runtime.SetFinalizer(p, func(*T) { println("FAIL") })
return p
}
func main() {
F()
}
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