1// run
2
3// Copyright 2010 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
7package main
8
9import "errors"
10
11// Issue 481: closures and var declarations
12// with multiple variables assigned from one
13// function call.
14
15func main() {
16	var listen, _ = Listen("tcp", "127.0.0.1:0")
17
18	go func() {
19		for {
20			var conn, _ = listen.Accept()
21			_ = conn
22		}
23	}()
24
25	var conn, _ = Dial("tcp", "", listen.Addr().Error())
26	_ = conn
27}
28
29// Simulated net interface to exercise bug
30// without involving a real network.
31type T chan int
32
33var global T
34
35func Listen(x, y string) (T, string) {
36	global = make(chan int)
37	return global, y
38}
39
40func (t T) Addr() error {
41	return errors.New("stringer")
42}
43
44func (t T) Accept() (int, string) {
45	return <-t, ""
46}
47
48func Dial(x, y, z string) (int, string) {
49	global <- 1
50	return 0, ""
51}
52