go issue48453 源码
golang issue48453 代码
文件路径：/test/typeparam/issue48453.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
//go:noinline
func CopyMap[M interface{ ~map[K]V }, K comparable, V any](m M) M {
out := make(M, len(m))
for k, v := range m {
out[k] = v
}
return out
}
func main() {
var m map[*string]int
CopyMap(m)
}
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