| // $G $D/$F.go && $L $F.$A && ./$A.out | |
| // 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. | |
| package main | |
| import "fmt" | |
| type Buffer int | |
| func (*Buffer) Read() {} | |
| type Reader interface { | |
| Read() | |
| } | |
| func f() *Buffer { return nil } | |
| func g() Reader { | |
| // implicit interface conversion in assignment during return | |
| return f() | |
| } | |
| func h() (b *Buffer, ok bool) { return } | |
| func i() (r Reader, ok bool) { | |
| // implicit interface conversion in multi-assignment during return | |
| return h() | |
| } | |
| func fmter() (s string, i int, t string) { return "%#x %q", 100, "hello" } | |
| func main() { | |
| b := g() | |
| bb, ok := b.(*Buffer) | |
| _, _, _ = b, bb, ok | |
| b, ok = i() | |
| bb, ok = b.(*Buffer) | |
| _, _, _ = b, bb, ok | |
| s := fmt.Sprintf(fmter()) | |
| if s != "0x64 \"hello\"" { | |
| println(s) | |
| panic("fail") | |
| } | |
| } |