| // 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. |
| |
| // This file is tested when running "go test -run Manual" |
| // without source arguments. Use for one-off debugging. |
| |
| package p |
| |
| type T1 interface{ M() } |
| |
| func F1() T1 |
| |
| var _ = F1().(*X1 /* ERROR undeclared name: X1 */) |
| |
| func _() { |
| switch F1().(type) { |
| case *X1 /* ERROR undeclared name: X1 */ : |
| } |
| } |
| |
| type T2 interface{ M() } |
| |
| func F2() T2 |
| |
| var _ = F2(). /* ERROR impossible type assertion: F2\(\).\(\*X2\)\n\t\*X2 does not implement T2 \(missing M method\) */ (*X2) |
| |
| type X2 struct{} |
| |
| func _() { |
| switch F2().(type) { |
| case * /* ERROR impossible type switch case: \*X2\n\tF2\(\) \(value of type T2\) cannot have dynamic type \*X2 \(missing M method\) */ X2: |
| } |
| } |
