1// run
2
3// Copyright 2011 The Go Authors.  All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// Test that dynamic interface checks treat byte=uint8
8// and rune=int or rune=int32.
9
10package main
11
12func main() {
13	var x interface{}
14
15	x = byte(1)
16	switch x.(type) {
17	case uint8:
18		// ok
19	default:
20		println("byte != uint8")
21	}
22
23	x = uint8(2)
24	switch x.(type) {
25	case byte:
26		// ok
27	default:
28		println("uint8 != byte")
29	}
30
31	rune32 := false
32	x = rune(3)
33	switch x.(type) {
34	case int:
35		// ok
36	case int32:
37		// must be new code
38		rune32 = true
39	default:
40		println("rune != int and rune != int32")
41	}
42
43	if rune32 {
44		x = int32(4)
45	} else {
46		x = int(5)
47	}
48	switch x.(type) {
49	case rune:
50		// ok
51	default:
52		println("int (or int32) != rune")
53	}
54}
55