1// run
2
3// Copyright 2009 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 "go/ast";
10
11func g(list []ast.Expr) {
12	n := len(list)-1;
13	println(list[n].Pos());
14}
15
16
17// f is the same as g except that the expression assigned to n is inlined.
18func f(list []ast.Expr) {
19	// n := len(list)-1;
20	println(list[len(list)-1 /* n */].Pos());
21}
22
23
24func main() {
25	list := []ast.Expr{&ast.Ident{}};
26	g(list);  // this works
27	f(list);  // this doesn't
28}
29
30
31/*
320
33throw: index out of range
34
35panic PC=0x2bcf10
36throw+0x33 /home/gri/go/src/pkg/runtime/runtime.c:71
37	throw(0x470f8, 0x0)
38sys·throwindex+0x1c /home/gri/go/src/pkg/runtime/runtime.c:45
39	sys·throwindex()
40main·f+0x26 /home/gri/go/test/bugs/bug206.go:16
41	main·f(0x2b9560, 0x0)
42main·main+0xc3 /home/gri/go/test/bugs/bug206.go:23
43	main·main()
44mainstart+0xf /home/gri/go/src/pkg/runtime/amd64/asm.s:55
45	mainstart()
46goexit /home/gri/go/src/pkg/runtime/proc.c:133
47	goexit()
48*/
49