| // 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 generics |
| |
| func _[A, B any](a A, b B) int {} |
| func _[T any](x, y T) T |
| |
| type T[P any] struct{} |
| type T[P1, P2, P3 any] struct{} |
| |
| type T[P C] struct{} |
| type T[P1, P2, P3 C] struct{} |
| |
| type T[P C[P]] struct{} |
| type T[P1, P2, P3 C[P1, P2, P3]] struct{} |
| |
| func f[P any](x P) |
| func f[P1, P2, P3 any](x1 P1, x2 P2, x3 P3) struct{} |
| |
| func f[P interface{}](x P) |
| func f[P1, P2, P3 interface { |
| m1(P1) |
| type P2, P3 |
| }](x1 P1, x2 P2, x3 P3) struct{} |
| func f[P any](T1[P], T2[P]) T3[P] |
| |
| func (x T[P]) m() |
| func (T[P]) m(x T[P]) P |
| |
| func _() { |
| type _ []T[P] |
| var _ []T[P] |
| _ = []T[P]{} |
| } |
| |
| // properly format one-line type lists |
| // TODO(rfindley): remove support for type lists |
| type _ interface{ type a } |
| |
| type _ interface { |
| type a, b, c |
| } |
| |
| // type constraint literals with elided interfaces |
| func _[P ~int, Q int | string]() {} |
| func _[P struct{ f int }, Q *P]() {} |