From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <marshallofsound@electronjs.org>
Date: Wed, 8 Mar 2023 13:04:21 -0800
Subject: refactor: expose HostImportModuleDynamically and
 HostGetImportMetaProperties to embedders

This is so that Electron can blend Blink's and Node's implementations of these isolate handlers.

diff --git a/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc b/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
index 9d7679d1979b21b58ac08723589a48fbff85c9e0..2647b325aefb15721c098d68ef401957e5f14273 100644
--- a/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
+++ b/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
@@ -638,7 +638,9 @@ bool WasmJSPromiseIntegrationEnabledCallback(v8::Local<v8::Context> context) {
       execution_context);
 }
 
-v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
+}
+
+v8::MaybeLocal<v8::Promise> V8Initializer::HostImportModuleDynamically(
     v8::Local<v8::Context> context,
     v8::Local<v8::Data> v8_host_defined_options,
     v8::Local<v8::Value> v8_referrer_resource_url,
@@ -716,7 +718,7 @@ v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
 }
 
 // https://html.spec.whatwg.org/C/#hostgetimportmetaproperties
-void HostGetImportMetaProperties(v8::Local<v8::Context> context,
+void V8Initializer::HostGetImportMetaProperties(v8::Local<v8::Context> context,
                                  v8::Local<v8::Module> module,
                                  v8::Local<v8::Object> meta) {
   v8::Isolate* isolate = context->GetIsolate();
@@ -759,9 +761,6 @@ std::ostream& operator<<(std::ostream& os, const PrintV8OOM& oom_details) {
   return os;
 }
 
-}  // namespace
-
-// static
 void V8Initializer::InitializeV8Common(v8::Isolate* isolate) {
   // Set up garbage collection before setting up anything else as V8 may trigger
   // GCs during Blink setup.
@@ -781,9 +780,9 @@ void V8Initializer::InitializeV8Common(v8::Isolate* isolate) {
   isolate->SetWasmJSPIEnabledCallback(WasmJSPromiseIntegrationEnabledCallback);
   isolate->SetSharedArrayBufferConstructorEnabledCallback(
       SharedArrayBufferConstructorEnabledCallback);
-  isolate->SetHostImportModuleDynamicallyCallback(HostImportModuleDynamically);
+  isolate->SetHostImportModuleDynamicallyCallback(V8Initializer::HostImportModuleDynamically);
   isolate->SetHostInitializeImportMetaObjectCallback(
-      HostGetImportMetaProperties);
+      V8Initializer::HostGetImportMetaProperties);
   isolate->SetMetricsRecorder(std::make_shared<V8MetricsRecorder>(isolate));
 
 #if BUILDFLAG(IS_WIN)
diff --git a/third_party/blink/renderer/bindings/core/v8/v8_initializer.h b/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
index c3aa714d99a398e29e52c3acb16fc555231d0e4a..6698228c6e76676c6a5cdb39c0d17e2add5547df 100644
--- a/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
+++ b/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
@@ -85,6 +85,17 @@ class CORE_EXPORT V8Initializer {
   static void PromiseRejectHandlerInMainThread(v8::PromiseRejectMessage data);
   static void ExceptionPropagationCallback(v8::ExceptionPropagationMessage);
 
+  static v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
+    v8::Local<v8::Context> context,
+    v8::Local<v8::Data> v8_host_defined_options,
+    v8::Local<v8::Value> v8_referrer_resource_url,
+    v8::Local<v8::String> v8_specifier,
+    v8::Local<v8::FixedArray> v8_import_assertions);
+
+  static void HostGetImportMetaProperties(v8::Local<v8::Context> context,
+                                          v8::Local<v8::Module> module,
+                                          v8::Local<v8::Object> meta);
+
   static void WasmAsyncResolvePromiseCallback(
       v8::Isolate* isolate,
       v8::Local<v8::Context> context,