From 7364a8c2b04c0d1ea9079a07348fe693bce90e0c Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijnh@gmail.com>
Date: Thu, 15 Sep 2011 17:37:10 +0200
Subject: [PATCH] Prevent binary expressions from parsing when lhs is non-value
 block

---
 src/comp/syntax/parse/parser.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/comp/syntax/parse/parser.rs b/src/comp/syntax/parse/parser.rs
index b2da68b0cd95..5e66ba881263 100644
--- a/src/comp/syntax/parse/parser.rs
+++ b/src/comp/syntax/parse/parser.rs
@@ -1188,6 +1188,7 @@ const ternary_prec: int = 0;
 
 fn parse_more_binops(p: parser, lhs: @ast::expr, min_prec: int) ->
    @ast::expr {
+    if !expr_has_value(lhs) { ret lhs; }
     let peeked = p.peek();
     for cur: op_spec in *p.get_prec_table() {
         if cur.prec > min_prec && cur.tok == peeked {