1
0
mirror of https://github.com/golang/go synced 2024-07-03 00:40:45 +00:00
go/test/typeparam/issue47708.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

38 lines
934 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 FooType[T any] interface {
Foo(BarType[T]) string
}
type BarType[T any] interface {
Bar(FooType[T]) string
}
// For now, a lone type parameter is not permitted as RHS in a type declaration (issue #45639).
// type Baz[T any] T
// func (l Baz[T]) Foo(v BarType[T]) string {
// return v.Bar(l)
// }
// type Bob[T any] T
// func (l Bob[T]) Bar(v FooType[T]) string {
// if v,ok := v.(Baz[T]);ok{
// return fmt.Sprintf("%v%v",v,l)
// }
// return ""
// }
func main() {
// For now, a lone type parameter is not permitted as RHS in a type declaration (issue #45639).
// var baz Baz[int] = 123
// var bob Bob[int] = 456
//
// if got, want := baz.Foo(bob), "123456"; got != want {
// panic(fmt.Sprintf("got %s want %s", got, want))
// }
}