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| // run
|
| // Copyright 2011 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 dynamic interface checks treat byte=uint8
| // and rune=int or rune=int32.
|
| package main
|
| func main() {
| var x interface{}
|
| x = byte(1)
| switch x.(type) {
| case uint8:
| // ok
| default:
| panic("byte != uint8")
| }
|
| x = uint8(2)
| switch x.(type) {
| case byte:
| // ok
| default:
| panic("uint8 != byte")
| }
|
| rune32 := false
| x = rune(3)
| switch x.(type) {
| case int:
| // ok
| case int32:
| // must be new code
| rune32 = true
| default:
| panic("rune != int and rune != int32")
| }
|
| if rune32 {
| x = int32(4)
| } else {
| x = int(5)
| }
| switch x.(type) {
| case rune:
| // ok
| default:
| panic("int (or int32) != rune")
| }
| }
|
|
