go issue48137 源码
golang issue48137 代码
文件路径：/test/typeparam/issue48137.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
type Constraint[T any] interface {
~func() T
}
func Foo[T Constraint[T]]() T {
var t T
t = func() T {
return t
}
return t
}
func main() {
type Bar func() Bar
Foo[Bar]()
}
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