mirror of
https://github.com/golang/go
synced 2024-09-04 23:44:16 +00:00
![Matthew Dempsky](/assets/img/avatar_default.png)
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>
28 lines
598 B
Go
28 lines
598 B
Go
// compile -G=3
|
|
|
|
// Copyright 2020 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.
|
|
|
|
// copied from cmd/compile/internal/types2/testdata/fixedbugs/issue39755.go
|
|
|
|
package p
|
|
|
|
func _[T interface{ ~map[string]int }](x T) {
|
|
_ = x == nil
|
|
}
|
|
|
|
// simplified test case from issue
|
|
|
|
type PathParamsConstraint interface {
|
|
~map[string]string | ~[]struct{ key, value string }
|
|
}
|
|
|
|
type PathParams[T PathParamsConstraint] struct {
|
|
t T
|
|
}
|
|
|
|
func (pp *PathParams[T]) IsNil() bool {
|
|
return pp.t == nil // this must succeed
|
|
}
|