From bd2c3ace686b60bf70cfae68f36b1c25fc685081 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 2 Jul 2023 10:28:36 +0200
Subject: [PATCH] LibJS/Bytecode: Make sure empty `with` statement results in
 `undefined`

2 new passes on test262. :^)
---
 Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
index 33875a71a1..3a555b10a6 100644
--- a/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/ASTCodegen.cpp
@@ -2372,6 +2372,9 @@ Bytecode::CodeGenerationErrorOr<void> WithStatement::generate_bytecode(Bytecode:
 
     // EnterObjectEnvironment sets the running execution context's lexical_environment to a new Object Environment.
     generator.start_boundary(Bytecode::Generator::BlockBoundaryType::LeaveLexicalEnvironment);
+
+    generator.emit<Bytecode::Op::LoadImmediate>(js_undefined());
+
     TRY(m_body->generate_bytecode(generator));
     generator.end_boundary(Bytecode::Generator::BlockBoundaryType::LeaveLexicalEnvironment);