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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/xpconnect/loader/ComponentModuleLoader.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/xpconnect/loader/ComponentModuleLoader.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/js/xpconnect/loader/ComponentModuleLoader.h b/js/xpconnect/loader/ComponentModuleLoader.h new file mode 100644 index 0000000000..7dd39dd342 --- /dev/null +++ b/js/xpconnect/loader/ComponentModuleLoader.h @@ -0,0 +1,119 @@ +/* -*- 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 |