106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "nsURIHashKey.h"
|
|
#include "mozilla/MozPromise.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class ModuleScript;
|
|
class ScriptLoader;
|
|
|
|
// A reference counted set of URLs we have visited in the process of loading a
|
|
// module graph.
|
|
class VisitedURLSet : public nsTHashtable<nsURIHashKey>
|
|
{
|
|
NS_INLINE_DECL_REFCOUNTING(VisitedURLSet)
|
|
|
|
private:
|
|
~VisitedURLSet() = default;
|
|
};
|
|
|
|
// 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)
|
|
|
|
// Create a top-level module load request.
|
|
ModuleLoadRequest(nsIURI* aURI,
|
|
nsIScriptElement* aElement,
|
|
uint32_t aVersion,
|
|
CORSMode aCORSMode,
|
|
const SRIMetadata& aIntegrity,
|
|
nsIURI* aReferrer,
|
|
mozilla::net::ReferrerPolicy,
|
|
ScriptLoader* aLoader);
|
|
|
|
// Create a module load request for an imported module.
|
|
ModuleLoadRequest(nsIURI* aURI,
|
|
ModuleLoadRequest* aParent);
|
|
|
|
bool IsTopLevel() const override {
|
|
return mIsTopLevel;
|
|
}
|
|
|
|
void SetReady() override;
|
|
void Cancel() override;
|
|
|
|
void ModuleLoaded();
|
|
void ModuleErrored();
|
|
void DependenciesLoaded();
|
|
void LoadFailed();
|
|
|
|
private:
|
|
void LoadFinished();
|
|
void CancelImports();
|
|
|
|
public:
|
|
// Is this a request for a top level module script or an import?
|
|
const 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;
|
|
|
|
// 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;
|
|
|
|
// Set of module URLs visited while fetching the module graph this request is
|
|
// part of.
|
|
RefPtr<VisitedURLSet> mVisitedSet;
|
|
};
|
|
|
|
} // dom namespace
|
|
} // mozilla namespace
|
|
|
|
#endif // mozilla_dom_ModuleLoadRequest_h
|