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go/test/bugs/bug159.go
Russ Cox 70ce47058e bug in parallel assignment
R=r
DELTA=40  (40 added, 0 deleted, 0 changed)
OCL=29850
CL=29855
2009-06-03 17:26:53 -07:00

40 lines
847 B
Go

// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: bug159
// 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 "os"
func main() {
ok := true;
var a, b, c, x, y, z int;
f := func() int { b--; return -b };
// this fails on 6g: apparently it rewrites
// the list into
// z = f();
// y = f();
// x = f();
// so that the values come out backward.
x, y, z = f(), f(), f();
if x != 1 || y != 2 || z != 3 {
println("xyz: expected 1 2 3 got", x, y, z);
ok = false;
}
// this fails on 6g too. one of the function calls
// happens after assigning to b.
a, b, c = f(), f(), f();
if a != 4 || b != 5 || c != 6 {
println("abc: expected 4 5 6 got", a, b, c);
ok = false;
}
if !ok {
os.Exit(1);
}
}