From 927d404ad5d145bbcc58e0a4f9ee5d5df0637160 Mon Sep 17 00:00:00 2001
From: John Wiegley <johnw@newartisans.com>
Date: Tue, 13 Mar 2012 10:33:59 -0500
Subject: Added a syntax error check

---
 src/op.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/op.cc')

diff --git a/src/op.cc b/src/op.cc
index 7f2418b1..8be0796a 100644
--- a/src/op.cc
+++ b/src/op.cc
@@ -198,6 +198,9 @@ expr_t::ptr_op_t expr_t::op_t::compile(scope_t& scope, const int depth,
   }
 
   if (! result) {
+    if (! left())
+      throw_(calc_error, _("Syntax error"));
+
     ptr_op_t lhs(left()->compile(*scope_ptr, depth + 1, param_scope));
     ptr_op_t rhs(kind > UNARY_OPERATORS && has_right() ?
                  (kind == O_LOOKUP ? right() :
-- 
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