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Diffstat (limited to '')
-rw-r--r-- | js/xpconnect/loader/SyncModuleLoader.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/js/xpconnect/loader/SyncModuleLoader.h b/js/xpconnect/loader/SyncModuleLoader.h new file mode 100644 index 0000000000..93b7f58d39 --- /dev/null +++ b/js/xpconnect/loader/SyncModuleLoader.h @@ -0,0 +1,108 @@ +/* -*- 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_SyncModuleLoader_h +#define mozilla_loader_SyncModuleLoader_h + +#include "js/loader/LoadContextBase.h" +#include "js/loader/ModuleLoaderBase.h" + +#include "SkipCheckForBrokenURLOrZeroSized.h" + +class mozJSModuleLoader; + +namespace mozilla { +namespace loader { + +class SyncScriptLoader : public JS::loader::ScriptLoaderInterface { + public: + NS_DECL_ISUPPORTS + + private: + ~SyncScriptLoader() = 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 SyncModuleLoader : public JS::loader::ModuleLoaderBase { + public: + NS_DECL_ISUPPORTS_INHERITED + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SyncModuleLoader, + JS::loader::ModuleLoaderBase) + + SyncModuleLoader(SyncScriptLoader* aScriptLoader, + nsIGlobalObject* aGlobalObject); + + [[nodiscard]] nsresult ProcessRequests(); + + void MaybeReportLoadError(JSContext* aCx); + + private: + ~SyncModuleLoader(); + + already_AddRefed<ModuleLoadRequest> CreateStaticImport( + nsIURI* aURI, ModuleLoadRequest* aParent) override; + + already_AddRefed<ModuleLoadRequest> CreateDynamicImport( + JSContext* aCx, nsIURI* aURI, LoadedScript* aMaybeActiveScript, + JS::Handle<JSString*> aSpecifier, + JS::Handle<JSObject*> aPromise) override; + + void OnDynamicImportStarted(ModuleLoadRequest* aRequest) 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 SyncModuleLoader that is associated with each load +// request. +class SyncLoadContext : public JS::loader::LoadContextBase { + public: + SyncLoadContext() : LoadContextBase(JS::loader::ContextKind::Sync) {} + + 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_SyncModuleLoader_h |