From 9df7bf79ccd5fb306817e45c15d34ce399fb7114 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Tue, 8 Aug 2023 07:05:26 +0200
Subject: [PATCH] LibJS: Add
 create_simple_execution_context<GlobalObjectType>() helper

This makes it easy to set up a realm, global object and root execution
context with a single call to LibJS. It will be useful to basically
everyone except LibWeb.
---
 Userland/Libraries/LibJS/Runtime/VM.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Userland/Libraries/LibJS/Runtime/VM.h b/Userland/Libraries/LibJS/Runtime/VM.h
index 6168f542cc..4dab5e2717 100644
--- a/Userland/Libraries/LibJS/Runtime/VM.h
+++ b/Userland/Libraries/LibJS/Runtime/VM.h
@@ -344,4 +344,16 @@ private:
     OwnPtr<Bytecode::Interpreter> m_bytecode_interpreter;
 };
 
+template<typename GlobalObjectType, typename... Args>
+[[nodiscard]] static NonnullOwnPtr<ExecutionContext> create_simple_execution_context(VM& vm, Args&&... args)
+{
+    auto root_execution_context = MUST(Realm::initialize_host_defined_realm(
+        vm,
+        [&](Realm& realm_) -> GlobalObject* {
+            return vm.heap().allocate_without_realm<GlobalObjectType>(realm_, forward<Args>(args)...);
+        },
+        nullptr));
+    return root_execution_context;
+}
+
 }