From c5bd38252498e822ecb242e680f78e58448950a8 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Sun, 12 Sep 2021 12:52:37 +0100
Subject: [PATCH] LibJS: Leave NativeFunction's Realm unset if VM has no
 Interpreter

There's currently a fallback at the call site where the Realm is needed
(due to a slightly incorrect implementation of [[Call]] / [[Construct]])
so this is better than crashing (in LibWeb, currently).
---
 Userland/Libraries/LibJS/Runtime/NativeFunction.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp b/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp
index e784d3aa97..4f3916cc4b 100644
--- a/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp
+++ b/Userland/Libraries/LibJS/Runtime/NativeFunction.cpp
@@ -22,7 +22,7 @@ NativeFunction* NativeFunction::create(GlobalObject& global_object, const FlyStr
 
 NativeFunction::NativeFunction(Object& prototype)
     : FunctionObject(prototype)
-    , m_realm(&vm().interpreter().realm())
+    , m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
 {
 }
 
@@ -30,14 +30,14 @@ NativeFunction::NativeFunction(FlyString name, Function<Value(VM&, GlobalObject&
     : FunctionObject(prototype)
     , m_name(move(name))
     , m_native_function(move(native_function))
-    , m_realm(&vm().interpreter().realm())
+    , m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
 {
 }
 
 NativeFunction::NativeFunction(FlyString name, Object& prototype)
     : FunctionObject(prototype)
     , m_name(move(name))
-    , m_realm(&vm().interpreter().realm())
+    , m_realm(vm().interpreter_if_exists() ? &vm().interpreter().realm() : nullptr)
 {
 }