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-rw-r--r--dom/script/ModuleLoadRequest.cpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/dom/script/ModuleLoadRequest.cpp b/dom/script/ModuleLoadRequest.cpp
new file mode 100644
index 0000000000..e72edca2e8
--- /dev/null
+++ b/dom/script/ModuleLoadRequest.cpp
@@ -0,0 +1,102 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ModuleLoadRequest.h"
+#include "ModuleScript.h"
+#include "ScriptLoader.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ModuleLoadRequest)
+NS_INTERFACE_MAP_END_INHERITING(ScriptLoadRequest)
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(ModuleLoadRequest, ScriptLoadRequest,
+ mBaseURL,
+ mLoader,
+ mParent,
+ mModuleScript,
+ mImports)
+
+NS_IMPL_ADDREF_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
+NS_IMPL_RELEASE_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
+
+ModuleLoadRequest::ModuleLoadRequest(nsIScriptElement* aElement,
+ uint32_t aVersion,
+ CORSMode aCORSMode,
+ const SRIMetadata &aIntegrity,
+ ScriptLoader* aLoader)
+ : ScriptLoadRequest(ScriptKind::Module,
+ aElement,
+ aVersion,
+ aCORSMode,
+ aIntegrity),
+ mIsTopLevel(true),
+ mLoader(aLoader)
+{}
+
+void ModuleLoadRequest::Cancel()
+{
+ ScriptLoadRequest::Cancel();
+ mModuleScript = nullptr;
+ mProgress = ScriptLoadRequest::Progress::Ready;
+ for (size_t i = 0; i < mImports.Length(); i++) {
+ mImports[i]->Cancel();
+ }
+ mReady.RejectIfExists(NS_ERROR_FAILURE, __func__);
+}
+
+void
+ModuleLoadRequest::SetReady()
+{
+#ifdef DEBUG
+ for (size_t i = 0; i < mImports.Length(); i++) {
+ MOZ_ASSERT(mImports[i]->IsReadyToRun());
+ }
+#endif
+
+ ScriptLoadRequest::SetReady();
+ mReady.ResolveIfExists(true, __func__);
+}
+
+void
+ModuleLoadRequest::ModuleLoaded()
+{
+ // A module that was found to be marked as fetching in the module map has now
+ // been loaded.
+
+ mModuleScript = mLoader->GetFetchedModule(mURI);
+ mLoader->StartFetchingModuleDependencies(this);
+}
+
+void
+ModuleLoadRequest::DependenciesLoaded()
+{
+ // The module and all of its dependencies have been successfully fetched and
+ // compiled.
+
+ if (!mLoader->InstantiateModuleTree(this)) {
+ LoadFailed();
+ return;
+ }
+
+ SetReady();
+ mLoader->ProcessLoadedModuleTree(this);
+ mLoader = nullptr;
+ mParent = nullptr;
+}
+
+void
+ModuleLoadRequest::LoadFailed()
+{
+ Cancel();
+ mLoader->ProcessLoadedModuleTree(this);
+ mLoader = nullptr;
+ mParent = nullptr;
+}
+
+} // dom namespace
+} // mozilla namespace \ No newline at end of file