972550c448
Backed out changeset 9e84285278fe (bug 1428745) Backed out changeset e199f1ccf64c (bug 1428745) Backed out changeset dfb9af93ac53 (bug 1428745) Backed out changeset 1d975770bd9a (bug 1428745) Backed out changeset 1d5dc7dfd429 (bug 1428745) Backed out changeset 4e53f251c5b8 (bug 1428745)
108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_ModuleLoadRequest_h
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#define mozilla_dom_ModuleLoadRequest_h
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#include "ScriptLoadRequest.h"
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#include "nsURIHashKey.h"
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#include "mozilla/MozPromise.h"
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namespace mozilla {
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namespace dom {
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class ModuleScript;
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class ScriptLoader;
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// A reference counted set of URLs we have visited in the process of loading a
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// module graph.
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class VisitedURLSet : public nsTHashtable<nsURIHashKey>
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{
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NS_INLINE_DECL_REFCOUNTING(VisitedURLSet)
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private:
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~VisitedURLSet() = default;
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};
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// A load request for a module, created for every top level module script and
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// every module import. Load request can share an ModuleScript if there are
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// multiple imports of the same module.
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class ModuleLoadRequest final : public ScriptLoadRequest
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{
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~ModuleLoadRequest() = default;
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ModuleLoadRequest(const ModuleLoadRequest& aOther) = delete;
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ModuleLoadRequest(ModuleLoadRequest&& aOther) = delete;
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ModuleLoadRequest, ScriptLoadRequest)
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// Create a top-level module load request.
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ModuleLoadRequest(nsIURI* aURI,
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nsIScriptElement* aElement,
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ValidJSVersion aValidJSVersion,
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CORSMode aCORSMode,
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const SRIMetadata& aIntegrity,
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nsIURI* aReferrer,
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mozilla::net::ReferrerPolicy,
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ScriptLoader* aLoader);
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// Create a module load request for an imported module.
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ModuleLoadRequest(nsIURI* aURI,
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ModuleLoadRequest* aParent);
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bool IsTopLevel() const
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{
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return mIsTopLevel;
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}
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void SetReady() override;
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void Cancel() override;
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void ModuleLoaded();
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void ModuleErrored();
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void DependenciesLoaded();
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void LoadFailed();
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private:
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void LoadFinished();
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void CancelImports();
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public:
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// Is this a request for a top level module script or an import?
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const bool mIsTopLevel;
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// The base URL used for resolving relative module imports.
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nsCOMPtr<nsIURI> mBaseURL;
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// Pointer to the script loader, used to trigger actions when the module load
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// finishes.
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RefPtr<ScriptLoader> mLoader;
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// Set to a module script object after a successful load or nullptr on
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// failure.
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RefPtr<ModuleScript> mModuleScript;
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// A promise that is completed on successful load of this module and all of
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// its dependencies, indicating that the module is ready for instantiation and
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// evaluation.
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MozPromiseHolder<GenericPromise> mReady;
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// Array of imported modules.
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nsTArray<RefPtr<ModuleLoadRequest>> mImports;
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// Set of module URLs visited while fetching the module graph this request is
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// part of.
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RefPtr<VisitedURLSet> mVisitedSet;
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};
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} // dom namespace
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} // mozilla namespace
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#endif // mozilla_dom_ModuleLoadRequest_h
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