From 54c95d44ce962c5830d3ea1e50136758e43e4a22 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Wed, 15 Apr 2020 22:16:55 +0200
Subject: [PATCH] LibJS: Functions with no variables don't need to create
 environment

Just hand out the parent environment instead.
---
 Libraries/LibJS/Runtime/ScriptFunction.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Libraries/LibJS/Runtime/ScriptFunction.cpp b/Libraries/LibJS/Runtime/ScriptFunction.cpp
index ab241fe331..ec1b6188da 100644
--- a/Libraries/LibJS/Runtime/ScriptFunction.cpp
+++ b/Libraries/LibJS/Runtime/ScriptFunction.cpp
@@ -72,7 +72,8 @@ LexicalEnvironment* ScriptFunction::create_environment()
             }
         }
     }
-
+    if (variables.is_empty())
+        return m_parent_environment;
     return heap().allocate<LexicalEnvironment>(move(variables), m_parent_environment);
 }