blob: d40a1513832115bc8c3d015575126d14141f564d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
// run
// Copyright 2009 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.
// Test that interface conversion fails when method is missing.
package main
type I interface {
Foo()
}
func main() {
shouldPanic(p1)
}
func p1() {
var s *S
var i I
var e interface{}
e = s
i = e.(I)
_ = i
}
type S struct{}
func (s *S) _() {}
func shouldPanic(f func()) {
defer func() {
if recover() == nil {
panic("function should panic")
}
}()
f()
}
|