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go/test/typeparam/issue39755.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

28 lines
593 B
Go

// compile
// 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
}