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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_loader_ComponentModuleLoader_h
#define mozilla_loader_ComponentModuleLoader_h
#include "js/loader/LoadContextBase.h"
#include "js/loader/ModuleLoaderBase.h"
#include "SkipCheckForBrokenURLOrZeroSized.h"
class mozJSModuleLoader;
namespace mozilla {
namespace loader {
class ComponentScriptLoader : public JS::loader::ScriptLoaderInterface {
public:
NS_DECL_ISUPPORTS
private:
~ComponentScriptLoader() = default;
nsIURI* GetBaseURI() const override;
void ReportErrorToConsole(ScriptLoadRequest* aRequest,
nsresult aResult) const override;
void ReportWarningToConsole(ScriptLoadRequest* aRequest,
const char* aMessageName,
const nsTArray<nsString>& aParams) const override;
nsresult FillCompileOptionsForRequest(
JSContext* cx, ScriptLoadRequest* aRequest, JS::CompileOptions* aOptions,
JS::MutableHandle<JSScript*> aIntroductionScript) override;
};
class ComponentModuleLoader : public JS::loader::ModuleLoaderBase {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ComponentModuleLoader,
JS::loader::ModuleLoaderBase)
ComponentModuleLoader(ComponentScriptLoader* aScriptLoader,
nsIGlobalObject* aGlobalObject);
[[nodiscard]] nsresult ProcessRequests();
void MaybeReportLoadError(JSContext* aCx);
private:
// An event target that dispatches runnables by executing them
// immediately. This is used to drive mozPromise dispatch for
// ComponentModuleLoader.
class SyncEventTarget : public nsISerialEventTarget {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIEVENTTARGET_FULL
private:
virtual ~SyncEventTarget() = default;
};
~ComponentModuleLoader();
already_AddRefed<ModuleLoadRequest> CreateStaticImport(
nsIURI* aURI, ModuleLoadRequest* aParent) override;
already_AddRefed<ModuleLoadRequest> CreateDynamicImport(
JSContext* aCx, nsIURI* aURI, LoadedScript* aMaybeActiveScript,
JS::Handle<JS::Value> aReferencingPrivate,
JS::Handle<JSString*> aSpecifier,
JS::Handle<JSObject*> aPromise) override;
bool CanStartLoad(ModuleLoadRequest* aRequest, nsresult* aRvOut) override;
nsresult StartFetch(ModuleLoadRequest* aRequest) override;
nsresult CompileFetchedModule(
JSContext* aCx, JS::Handle<JSObject*> aGlobal,
JS::CompileOptions& aOptions, ModuleLoadRequest* aRequest,
JS::MutableHandle<JSObject*> aModuleScript) override;
void OnModuleLoadComplete(ModuleLoadRequest* aRequest) override;
JS::loader::ScriptLoadRequestList mLoadRequests;
// If any of module scripts failed to load, exception is set here until it's
// reported by MaybeReportLoadError.
JS::PersistentRooted<JS::Value> mLoadException;
};
// Data specific to ComponentModuleLoader that is associated with each load
// request.
class ComponentLoadContext : public JS::loader::LoadContextBase {
public:
ComponentLoadContext()
: LoadContextBase(JS::loader::ContextKind::Component) {}
public:
// The result of compiling a module script. These fields are used temporarily
// before being passed to the module loader.
nsresult mRv;
SkipCheckForBrokenURLOrZeroSized mSkipCheck;
// The exception thrown during compiling a module script. These fields are
// used temporarily before being passed to the module loader.
JS::PersistentRooted<JS::Value> mExceptionValue;
JS::PersistentRooted<JSScript*> mScript;
};
} // namespace loader
} // namespace mozilla
#endif // mozilla_loader_ComponentModuleLoader_h
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