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 ebcac005c83a04fe56761853f89717514de1eb90..d9a7a073a885f0e6b38cd222860282d220fa6d94 100644
--- a/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
+++ b/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
@@ -633,7 +633,9 @@ bool WasmJSPromiseIntegrationEnabledCallback(v8::Local<v8::Context> context) {
       execution_context);
 }
 
-v8::MaybeLocal<v8::Promise> HostImportModuleWithPhaseDynamically(
+}  // namespace
+
+v8::MaybeLocal<v8::Promise> V8Initializer::HostImportModuleWithPhaseDynamically(
     v8::Local<v8::Context> context,
     v8::Local<v8::Data> v8_host_defined_options,
     v8::Local<v8::Value> v8_referrer_resource_url,
@@ -712,19 +714,21 @@ v8::MaybeLocal<v8::Promise> HostImportModuleWithPhaseDynamically(
   return resolver->Promise().V8Promise();
 }
 
+namespace {
 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_attributes) {
-  return HostImportModuleWithPhaseDynamically(
+  return V8Initializer::HostImportModuleWithPhaseDynamically(
       context, v8_host_defined_options, v8_referrer_resource_url, v8_specifier,
       v8::ModuleImportPhase::kEvaluation, v8_import_attributes);
 }
+}  // namespace
 
 // 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();
@@ -751,6 +755,7 @@ void HostGetImportMetaProperties(v8::Local<v8::Context> context,
   meta->CreateDataProperty(context, resolve_key, resolve_value).ToChecked();
 }
 
+namespace {
 bool IsDOMExceptionWrapper(v8::Isolate* isolate, v8::Local<v8::Object> object) {
   return V8DOMException::HasInstance(isolate, object);
 }
@@ -781,7 +786,6 @@ void EmitDevToolsEvent(v8::Isolate* isolate) {
 
 }  // 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.
@@ -798,9 +802,9 @@ void V8Initializer::InitializeV8Common(v8::Isolate* isolate) {
       SharedArrayBufferConstructorEnabledCallback);
   isolate->SetHostImportModuleDynamicallyCallback(HostImportModuleDynamically);
   isolate->SetHostImportModuleWithPhaseDynamicallyCallback(
-      HostImportModuleWithPhaseDynamically);
+      V8Initializer::HostImportModuleWithPhaseDynamically);
   isolate->SetHostInitializeImportMetaObjectCallback(
-      HostGetImportMetaProperties);
+      V8Initializer::HostGetImportMetaProperties);
   isolate->SetIsJSApiWrapperNativeErrorCallback(IsDOMExceptionWrapper);
   isolate->SetMetricsRecorder(std::make_shared<V8MetricsRecorder>(isolate));
 
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 be5df8f98c3f7e308d79d43c1811a16c644b6158..599121e3dabecf1a8192ba410ff447dcb540376c 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 +85,18 @@ class CORE_EXPORT V8Initializer {
   static void PromiseRejectHandlerInMainThread(v8::PromiseRejectMessage data);
   static void ExceptionPropagationCallback(v8::ExceptionPropagationMessage);
 
+  static v8::MaybeLocal<v8::Promise> HostImportModuleWithPhaseDynamically(
+    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::ModuleImportPhase import_phase,
+    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,