go/test/typeparam/issue50264.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

46 lines
822 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 hello struct{}
func main() {
_ = Some(hello{})
res := Applicative2(func(a int, b int) int {
return 0
})
_ = res
}
type NoneType[T any] struct{}
func (r NoneType[T]) Recover() any {
return nil
}
type Func2[A1, A2, R any] func(a1 A1, a2 A2) R
func Some[T any](v T) any {
_ = Some2[T](v)
return NoneType[T]{}.Recover()
}
//go:noinline
func Some2[T any](v T) any {
return v
}
type Nil struct{}
type ApplicativeFunctor2[H, HT, A1, A2, R any] struct {
h any
}
func Applicative2[A1, A2, R any](fn Func2[A1, A2, R]) ApplicativeFunctor2[Nil, Nil, A1, A2, R] {
return ApplicativeFunctor2[Nil, Nil, A1, A2, R]{Some(Nil{})}
}