| // Copyright 2022 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 p |
| |
| type RC[RG any] interface { |
| ~[]RG |
| } |
| |
| type Fn[RCT RC[RG], RG any] func(RCT) |
| |
| type F[RCT RC[RG], RG any] interface { |
| Fn() Fn /* ERROR got 1 arguments */ [RCT] |
| } |
| |
| type concreteF[RCT RC[RG], RG any] struct { |
| makeFn func() Fn /* ERROR got 1 arguments */ [RCT] |
| } |
| |
| func (c *concreteF[RCT, RG]) Fn() Fn /* ERROR got 1 arguments */ [RCT] { |
| return c.makeFn() |
| } |
| |
| func NewConcrete[RCT RC[RG], RG any](Rc RCT) F /* ERROR got 1 arguments */ [RCT] { |
| // TODO(rfindley): eliminate the duplicate error below. |
| return & /* ERROR cannot use .* as F\[RCT\] */ concreteF /* ERROR got 1 arguments */ [RCT]{ |
| makeFn: nil, |
| } |
| } |
