golang a 代码
文件路径：/test/typeparam/issue49246.dir/a.go
/ 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 a
type R[T any] struct{ v T }
func (r R[T]) Self() R[T] { return R[T]{} }
type Fn[T any] func() R[T]
func X() (r R[int]) { return r.Self() }
func Y[T any](a Fn[T]) Fn[int] {
return func() (r R[int]) {
/ No crash: return R[int]{}
return r.Self()
}
}