gecko-dev/dom/script/ModuleLoader.h
Tooru Fujisawa 82b9ddf3a3 Bug 1436400 - Part 9: Support restarting module load request. r=jonco
After enabling bytecode cache for module script, we need to handle
the SRI mismatch on bytecode cache, that requires reloading the script source
again.

Differential Revision: https://phabricator.services.mozilla.com/D140551
2022-03-15 19:05:57 +00:00

93 lines
2.9 KiB
C++

/* -*- 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_ModuleLoader_h
#define mozilla_dom_ModuleLoader_h
#include "mozilla/dom/ScriptLoadContext.h"
#include "js/loader/ModuleLoaderBase.h"
#include "js/loader/ScriptLoadRequest.h"
#include "ScriptLoader.h"
class nsIURI;
namespace JS {
class CompileOptions;
namespace loader {
class ModuleLoadRequest;
} // namespace loader
} // namespace JS
namespace mozilla {
namespace dom {
class ScriptLoader;
class SRIMetadata;
//////////////////////////////////////////////////////////////
// DOM Module loader implementation
//////////////////////////////////////////////////////////////
class ModuleLoader final : public JS::loader::ModuleLoaderBase {
private:
virtual ~ModuleLoader();
public:
explicit ModuleLoader(ScriptLoader* aLoader);
ScriptLoader* GetScriptLoader();
// Methods that must be overwritten by an extending class
void EnsureModuleHooksInitialized() override;
/**
* Start a load for a module script URI.
* Sets up the necessary security flags before calling StartLoadInternal.
* Short-circuits if the module is already being loaded.
*/
nsresult StartModuleLoad(ScriptLoadRequest* aRequest) override;
nsresult RestartModuleLoad(ScriptLoadRequest* aRequest) override;
private:
enum class RestartRequest { No, Yes };
nsresult StartModuleLoadImpl(ScriptLoadRequest* aRequest,
RestartRequest aRestart);
public:
void ProcessLoadedModuleTree(ModuleLoadRequest* aRequest) override;
nsresult CompileOrFinishModuleScript(
JSContext* aCx, JS::Handle<JSObject*> aGlobal,
JS::CompileOptions& aOptions, ModuleLoadRequest* aRequest,
JS::MutableHandle<JSObject*> aModuleScript) override;
// Create a top-level module load request.
static already_AddRefed<ModuleLoadRequest> CreateTopLevel(
nsIURI* aURI, ScriptFetchOptions* aFetchOptions,
const SRIMetadata& aIntegrity, nsIURI* aReferrer, ScriptLoader* aLoader,
ScriptLoadContext* aContext);
// Create a module load request for a static module import.
already_AddRefed<ModuleLoadRequest> CreateStaticImport(
nsIURI* aURI, ModuleLoadRequest* aParent) override;
// Create a module load request for dynamic module import.
static already_AddRefed<ModuleLoadRequest> CreateDynamicImport(
nsIURI* aURI, ScriptFetchOptions* aFetchOptions, nsIURI* aBaseURL,
ScriptLoadContext* aContext, ScriptLoader* aLoader,
JS::Handle<JS::Value> aReferencingPrivate,
JS::Handle<JSString*> aSpecifier, JS::Handle<JSObject*> aPromise);
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_ModuleLoader_h