X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fnasal%2Fcodegen.c;h=059c1144525b39a41bbd9245376cbfc3874fd110;hb=423eba373389684061fc0a8c7b78292f10011ed7;hp=76050031cdc231e89ccf599a526e6d57ea8d5359;hpb=0180cae8c3f60cce6b518b25238ffd6480373104;p=simgear.git

diff --git a/simgear/nasal/codegen.c b/simgear/nasal/codegen.c
index 76050031..059c1144 100644
--- a/simgear/nasal/codegen.c
+++ b/simgear/nasal/codegen.c
@@ -536,6 +536,9 @@ static void genAssign(struct Parser* p, struct Token* t)
 {
     struct Token *lv = LEFT(t), *rv = RIGHT(t);
     int len, dummy, var=0;
+    if (!lv)
+        naParseError(p, "bad assignment, missing variable", t->line);
+    else
     if(parListLen(lv) || (lv->type == TOK_VAR && parListLen(RIGHT(lv)))) {
         if(lv->type == TOK_VAR) { lv = RIGHT(lv); var = 1; }
         len = parListLen(lv);
@@ -560,7 +563,7 @@ static void genAssign(struct Parser* p, struct Token* t)
 
 static void genSlice(struct Parser* p, struct Token* t)
 {
-    if(!t) naParseError(p, "empty slice expression", -1);
+    if(!t || t->type==TOK_EMPTY) naParseError(p, "empty slice expression", -1);
     if(t->type == TOK_COLON) {
         if(LEFT(t))  genExpr(p, LEFT(t));  else emit(p, OP_PUSHNIL);
         if(RIGHT(t)) genExpr(p, RIGHT(t)); else emit(p, OP_PUSHNIL);