[ESNext] Implement DynamicImportCall

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 9337708dcf0f7b3985b580c2208edde485fc88e5..bfb5322fb766801063da2a544dc0f56390b8196b 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -2052,6 +2052,42 @@ Local<UnboundScript> Script::GetUnboundScript() {
       i::Handle<i::SharedFunctionInfo>(i::JSFunction::cast(*obj)->shared()));
 }
 
+// static
+bool Module::FinishDynamicImportSuccess(Local<Context> context,
+                                        Local<Promise> promise,
+                                        Local<Module> module) {
+  PREPARE_FOR_EXECUTION_BOOL(context, Module, FinishDynamicImportSuccess);
+  i::Handle<i::Module> module_obj = Utils::OpenHandle(*module);
+  i::Handle<i::JSModuleNamespace> module_namespace =
+      i::Module::GetModuleNamespace(module_obj);
+  i::Handle<i::Object> argv[] = {Utils::OpenHandle(*promise), module_namespace};
+  has_pending_exception =
+      i::Execution::Call(isolate, isolate->promise_resolve(),
+                         isolate->factory()->undefined_value(), arraysize(argv),
+                         argv)
+          .is_null();
+  RETURN_ON_FAILED_EXECUTION_BOOL();
+  return true;
+}
+
+// static
+bool Module::FinishDynamicImportFailure(Local<Context> context,
+                                        Local<Promise> promise,
+                                        Local<Value> exception) {
+  PREPARE_FOR_EXECUTION_BOOL(context, Module, FinishDynamicImportFailure);
+  // We pass true to trigger the debugger's on exception handler.
+  i::Handle<i::Object> argv[] = {Utils::OpenHandle(*promise),
+                                 Utils::OpenHandle(*exception),
+                                 isolate->factory()->ToBoolean(true)};
+  has_pending_exception =
+      i::Execution::Call(isolate, isolate->promise_internal_reject(),
+                         isolate->factory()->undefined_value(), arraysize(argv),
+                         argv)
+          .is_null();
+  RETURN_ON_FAILED_EXECUTION_BOOL();
+  return true;
+}
+
 int Module::GetModuleRequestsLength() const {
   i::Handle<i::Module> self = Utils::OpenHandle(this);
   return self->info()->module_requests()->length();
@@ -8185,6 +8221,12 @@ Isolate* Isolate::New(const Isolate::CreateParams& params) {
 
   isolate->set_api_external_references(params.external_references);
   isolate->set_allow_atomics_wait(params.allow_atomics_wait);
+
+  if (params.host_import_module_dynamically_callback_ != nullptr) {
+    isolate->SetHostImportModuleDynamicallyCallback(
+        params.host_import_module_dynamically_callback_);
+  }
+
   SetResourceConstraints(isolate, params.constraints);
   // TODO(jochen): Once we got rid of Isolate::Current(), we can remove this.
   Isolate::Scope isolate_scope(v8_isolate);