From 54d55814afd222d03eb1ca5e24f35571c2e583f0 Mon Sep 17 00:00:00 2001
From: TopchetoEU <36534413+TopchetoEU@users.noreply.github.com>
Date: Mon, 9 Dec 2024 22:16:24 +0200
Subject: [PATCH] fix: errors with out of range arguments

---
 .../java/me/topchetoeu/jscript/runtime/InstructionRunner.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/me/topchetoeu/jscript/runtime/InstructionRunner.java b/src/main/java/me/topchetoeu/jscript/runtime/InstructionRunner.java
index cbb6857..dd44deb 100644
--- a/src/main/java/me/topchetoeu/jscript/runtime/InstructionRunner.java
+++ b/src/main/java/me/topchetoeu/jscript/runtime/InstructionRunner.java
@@ -469,7 +469,9 @@ public class InstructionRunner {
     }
 
     private static Value execLoadArg(Environment env, Instruction instr, Frame frame) {
-		frame.push(frame.args[(int)instr.get(0)]);
+		int i = instr.get(0);
+		if (i >= frame.args.length) frame.push(Value.UNDEFINED);
+		else frame.push(frame.args[i]);
         frame.codePtr++;
         return null;
     }