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go/test/typeparam/append.go
Matthew Dempsky e24977d231 all: avoid use of cmd/compile -G flag in tests
The next CL will remove the -G flag, effectively hard-coding it to its
current default (-G=3).

Change-Id: Ib4743b529206928f9f1cca9fdb19989728327831
Reviewed-on: https://go-review.googlesource.com/c/go/+/388534
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-03-01 19:45:34 +00:00

32 lines
597 B
Go

// run
// 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 main
type Recv <-chan int
type sliceOf[E any] interface {
~[]E
}
func _Append[S sliceOf[T], T any](s S, t ...T) S {
return append(s, t...)
}
func main() {
recv := make(Recv)
a := _Append([]Recv{recv}, recv)
if len(a) != 2 || a[0] != recv || a[1] != recv {
panic(a)
}
recv2 := make(chan<- int)
a2 := _Append([]chan<- int{recv2}, recv2)
if len(a2) != 2 || a2[0] != recv2 || a2[1] != recv2 {
panic(a)
}
}