6g bug: no need for parens around array index expression

where index is a composite literal

R=rsc
CC=golang-dev
http://codereview.appspot.com/961044

1 files changed, 22 insertions, 0 deletions

diff --git a/test/bugs/bug267.go b/test/bugs/bug267.go
new file mode 100644
index 000000000..9646142f2
--- /dev/null
+++ b/test/bugs/bug267.go
@@ -0,0 +1,22 @@
+// $G $D/$F.go || echo BUG
+
+// Copyright 2010 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
+
+type T []int
+
+var a []bool
+
+func _() {
+	if a[T{42}[0]] {
+	}
+	// if (a[T{42}[0]]) {}  // this compiles
+}
+
+/*
+6g bugs/bug267.go
+bugs/bug267.go:14: syntax error: unexpected {, expecting :
+*/