From 04c1e95f087b9f9885db1cf8fd61a488c253d742 Mon Sep 17 00:00:00 2001
From: andy <andy>
Date: Wed, 1 Aug 2007 22:33:01 +0000
Subject: [PATCH] Fix crash in code generator for some bad lvalue expressions

---
 simgear/nasal/codegen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/simgear/nasal/codegen.c b/simgear/nasal/codegen.c
index a0fcd91b..15276e8c 100644
--- a/simgear/nasal/codegen.c
+++ b/simgear/nasal/codegen.c
@@ -110,6 +110,7 @@ static int genScalarConstant(struct Parser* p, struct Token* t)
 
 static int genLValue(struct Parser* p, struct Token* t, int* cidx)
 {
+    if(!t) naParseError(p, "bad lvalue", -1);
     if(t->type == TOK_LPAR && t->rule != PREC_SUFFIX) {
         return genLValue(p, LEFT(t), cidx); // Handle stuff like "(a) = 1"
     } else if(t->type == TOK_SYMBOL) {
-- 
2.39.2