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/* -*- 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/. */
#ifndef mozilla_dom_ModuleLoadRequest_h
#define mozilla_dom_ModuleLoadRequest_h
#include "mozilla/dom/ScriptLoader.h"
#include "mozilla/MozPromise.h"
namespace mozilla {
namespace dom {
class ModuleScript;
class ScriptLoader;
// A load request for a module, created for every top level module script and
// every module import. Load request can share a ModuleScript if there are
// multiple imports of the same module.
class ModuleLoadRequest final : public ScriptLoadRequest
{
~ModuleLoadRequest() {}
ModuleLoadRequest(const ModuleLoadRequest& aOther) = delete;
ModuleLoadRequest(ModuleLoadRequest&& aOther) = delete;
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
ModuleLoadRequest(nsIScriptElement* aElement,
uint32_t aVersion,
CORSMode aCORSMode,
const SRIMetadata& aIntegrity,
ScriptLoader* aLoader);
bool IsTopLevel() const {
return mIsTopLevel;
}
void SetReady() override;
void Cancel() override;
void ModuleLoaded();
void DependenciesLoaded();
void LoadFailed();
// Is this a request for a top level module script or an import?
bool mIsTopLevel;
// The base URL used for resolving relative module imports.
nsCOMPtr<nsIURI> mBaseURL;
// Pointer to the script loader, used to trigger actions when the module load
// finishes.
RefPtr<ScriptLoader> mLoader;
// The importing module, or nullptr for top level module scripts. Used to
// implement the ancestor list checked when fetching module dependencies.
RefPtr<ModuleLoadRequest> mParent;
// Set to a module script object after a successful load or nullptr on
// failure.
RefPtr<ModuleScript> mModuleScript;
// A promise that is completed on successful load of this module and all of
// its dependencies, indicating that the module is ready for instantiation and
// evaluation.
MozPromiseHolder<GenericPromise> mReady;
// Array of imported modules.
nsTArray<RefPtr<ModuleLoadRequest>> mImports;
};
} // dom namespace
} // mozilla namespace
#endif // mozilla_dom_ModuleLoadRequest_h
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