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

where index is a composite literal

R=rsc
CC=golang-dev
https://golang.org/cl/961044

diff --git a/test/bugs/bug267.go b/test/bugs/bug267.go
new file mode 100644 (file)
index 0000000..9646142
--- /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 :
+*/

diff --git a/test/golden.out b/test/golden.out
index e0b6ad6242a72ccfcde4993f0dfe01413c353db9..3a9039fc5ebc19d7712dd7cffb42a7a53605f049 100644 (file)
--- a/test/golden.out
+++ b/test/golden.out
@@ -185,3 +185,7 @@ panic: barCount != 1
 
 panic PC=xxx
 BUG
+
+=========== bugs/bug267.go
+bugs/bug267.go:14: syntax error: unexpected {, expecting :
+BUG