test/typeparam: add a test case for issue48617

For golang#48617 Change-Id: I6c00b7912c441ac323a0adede63b7d4a9ae6f92d Reviewed-on: https://go-review.googlesource.com/c/go/+/351858 Reviewed-by: Cuong Manh Le <[email protected]> Reviewed-by: Dan Scales <[email protected]> Trust: Cuong Manh Le <[email protected]> Trust: Dan Scales <[email protected]> Run-TryBot: Cuong Manh Le <[email protected]> TryBot-Result: Go Bot <[email protected]>
ydnar · Sep 25, 2021 · aeea5ba · aeea5ba
1 parent ba76730
commit aeea5ba
Showing 1 changed file with 29 additions and 0 deletions.
diff --git a/test/typeparam/issue48617.go b/test/typeparam/issue48617.go
@@ -0,0 +1,29 @@
+// 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
+
+type Foo[T any] interface {
+	CreateBar() Bar[T]
+}
+
+type Bar[T any] func() Bar[T]
+
+func (f Bar[T]) CreateBar() Bar[T] {
+	return f
+}
+
+func abc[T any]() {
+	var b Bar[T] = func() Bar[T] {
+		var b Bar[T]
+		return b
+	}
+	var _ Foo[T] = b()
+}
+
+func main() {
+	abc[int]()
+}