mirror of
https://github.com/golang/go
synced 2024-11-17 07:35:05 -07:00
5355753009
We don't usually reformat the test directory, but all of the files in test/typeparam are syntactically valid. I suspect the misformattings here are because developers aren't re-installing gofmt with -tags=typeparams, not intentionally exercising non-standard formatting. Change-Id: I3767d480434c19225568f3c7d656dc8589197183 Reviewed-on: https://go-review.googlesource.com/c/go/+/338093 Trust: Matthew Dempsky <mdempsky@google.com> Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
37 lines
753 B
Go
37 lines
753 B
Go
// run -gcflags=-G=3
|
|
|
|
// 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
|
|
|
|
import (
|
|
"fmt"
|
|
"unsafe"
|
|
)
|
|
|
|
type pair[F1, F2 any] struct {
|
|
f1 F1
|
|
f2 F2
|
|
}
|
|
|
|
func main() {
|
|
p := pair[int32, int64]{1, 2}
|
|
if got, want := unsafe.Sizeof(p.f1), uintptr(4); got != want {
|
|
panic(fmt.Sprintf("unexpected f1 size == %d, want %d", got, want))
|
|
}
|
|
if got, want := unsafe.Sizeof(p.f2), uintptr(8); got != want {
|
|
panic(fmt.Sprintf("unexpected f2 size == %d, want %d", got, want))
|
|
}
|
|
|
|
type mypair struct {
|
|
f1 int32
|
|
f2 int64
|
|
}
|
|
mp := mypair(p)
|
|
if mp.f1 != 1 || mp.f2 != 2 {
|
|
panic(fmt.Sprintf("mp == %#v, want %#v", mp, mypair{1, 2}))
|
|
}
|
|
}
|