Imported Upstream version 60upstream/60

1 files changed, 48 insertions, 0 deletions

diff --git a/test/fixedbugs/bug206.go b/test/fixedbugs/bug206.go
new file mode 100644
index 000000000..7efc0b14a
--- /dev/null
+++ b/test/fixedbugs/bug206.go
@@ -0,0 +1,48 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out >/dev/null 2>&1 || echo BUG: bug206
+
+// 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 "go/ast";
+
+func g(list []ast.Expr) {
+	n := len(list)-1;
+	println(list[n].Pos());
+}
+
+
+// f is the same as g except that the expression assigned to n is inlined.
+func f(list []ast.Expr) {
+	// n := len(list)-1;
+	println(list[len(list)-1 /* n */].Pos());
+}
+
+
+func main() {
+	list := []ast.Expr{&ast.Ident{}};
+	g(list);  // this works
+	f(list);  // this doesn't
+}
+
+
+/*
+0
+throw: index out of range
+
+panic PC=0x2bcf10
+throw+0x33 /home/gri/go/src/pkg/runtime/runtime.c:71
+	throw(0x470f8, 0x0)
+sys·throwindex+0x1c /home/gri/go/src/pkg/runtime/runtime.c:45
+	sys·throwindex()
+main·f+0x26 /home/gri/go/test/bugs/bug206.go:16
+	main·f(0x2b9560, 0x0)
+main·main+0xc3 /home/gri/go/test/bugs/bug206.go:23
+	main·main()
+mainstart+0xf /home/gri/go/src/pkg/runtime/amd64/asm.s:55
+	mainstart()
+goexit /home/gri/go/src/pkg/runtime/proc.c:133
+	goexit()
+*/