| // 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 p |
| |
| type C0 interface{ int } |
| type C1 interface{ chan int } |
| type C2 interface{ chan int | <-chan int } |
| type C3 interface{ chan int | chan float32 } |
| type C4 interface{ chan int | chan<- int } |
| type C5[T any] interface{ ~chan T | chan<- T } |
| |
| func _[T any](ch T) { |
| ch /* ERROR cannot send to ch .* no structural type */ <- 0 |
| } |
| |
| func _[T C0](ch T) { |
| ch /* ERROR cannot send to non-channel */ <- 0 |
| } |
| |
| func _[T C1](ch T) { |
| ch <- 0 |
| } |
| |
| func _[T C2](ch T) { |
| ch /* ERROR cannot send to receive-only channel */ <- 0 |
| } |
| |
| func _[T C3](ch T) { |
| ch /* ERROR cannot send to ch .* no structural type */ <- 0 |
| } |
| |
| func _[T C4](ch T) { |
| ch <- 0 |
| } |
| |
| func _[T C5[X], X any](ch T, x X) { |
| ch <- x |
| } |
