fix operator in exception

grosser · Jul 30, 2011 · bac9c18 · bac9c18
1 parent b4cc506
commit bac9c18
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/RubyVM.js b/src/RubyVM.js
@@ -185,7 +185,7 @@ HotRuby.prototype = {
 	 */
 	mainLoop : function(opcode, sf) {
 		// Create label to ip
-		if(!("label2ip" in opcode)) {
+		if(typeof(opcode.label2ip) != 'undefined') { // label2ip in opcode would throw exception
 			opcode.label2ip = {};
 			for (var ip = 0;ip < opcode.length; ip++) {
 				// If "cmd is a String then it is a jump label