diff options
Diffstat (limited to 'test/typeparam/issue52228.go')
-rw-r--r-- | test/typeparam/issue52228.go | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/typeparam/issue52228.go b/test/typeparam/issue52228.go new file mode 100644 index 0000000..3fbbde5 --- /dev/null +++ b/test/typeparam/issue52228.go @@ -0,0 +1,30 @@ +// run + +// Copyright 2022 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 SomeInterface interface { + Whatever() +} + +func X[T any]() T { + var m T + + // for this example, this block should never run + if _, ok := any(m).(SomeInterface); ok { + var dst SomeInterface + _, _ = dst.(T) + return dst.(T) + } + + return m +} + +type holder struct{} + +func main() { + X[holder]() +} |