// Copyright 2020 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 "a" type R[T any] struct { F T } type S = R type Sint = R[int] type Simp = a.Rimp type SimpString Simp[string] func main() { var s S[int] if s.F != 0 { panic(s.F) } var s2 Sint if s2.F != 0 { panic(s2.F) } var s3 Simp[string] if s3.F != "" { panic(s3.F) } var s4 SimpString if s4.F != "" { panic(s4.F) } }