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Diffstat (limited to 'toolkit/components/uniffi-js/UniFFIScaffolding.cpp')
| -rw-r--r-- | toolkit/components/uniffi-js/UniFFIScaffolding.cpp | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/toolkit/components/uniffi-js/UniFFIScaffolding.cpp b/toolkit/components/uniffi-js/UniFFIScaffolding.cpp new file mode 100644 index 0000000000..3348b93e7d --- /dev/null +++ b/toolkit/components/uniffi-js/UniFFIScaffolding.cpp @@ -0,0 +1,162 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* 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/. */ + +#include <inttypes.h> +#include "nsError.h" +#include "nsString.h" +#include "nsPrintfCString.h" +#include "mozilla/Maybe.h" +#include "mozilla/dom/UniFFIScaffolding.h" +#include "mozilla/dom/UniFFICallbacks.h" + +// This file implements the UniFFI WebIDL interface by leveraging the generate +// code in UniFFIScaffolding.cpp and UniFFIFixtureScaffolding.cpp. It's main +// purpose is to check if MOZ_UNIFFI_FIXTURES is set and only try calling the +// scaffolding code if it is. + +using mozilla::dom::ArrayBuffer; +using mozilla::dom::GlobalObject; +using mozilla::dom::Promise; +using mozilla::dom::RootedDictionary; +using mozilla::dom::ScaffoldingType; +using mozilla::dom::Sequence; +using mozilla::dom::UniFFICallbackHandler; +using mozilla::dom::UniFFIPointer; +using mozilla::dom::UniFFIScaffoldingCallResult; + +namespace mozilla::uniffi { + +// Prototypes for the generated functions +Maybe<already_AddRefed<Promise>> UniFFICallAsync( + const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, ErrorResult& aError); +bool UniFFICallSync(const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, + RootedDictionary<UniFFIScaffoldingCallResult>& aReturnValue, + ErrorResult& aError); +Maybe<already_AddRefed<UniFFIPointer>> UniFFIReadPointer( + const GlobalObject& aGlobal, uint64_t aId, const ArrayBuffer& aArrayBuff, + long aPosition, ErrorResult& aError); +bool UniFFIWritePointer(const GlobalObject& aGlobal, uint64_t aId, + const UniFFIPointer& aPtr, + const ArrayBuffer& aArrayBuff, long aPosition, + ErrorResult& aError); + +#ifdef MOZ_UNIFFI_FIXTURES +Maybe<already_AddRefed<Promise>> UniFFIFixturesCallAsync( + const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, ErrorResult& aError); +bool UniFFIFixturesCallSync( + const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, + RootedDictionary<UniFFIScaffoldingCallResult>& aReturnValue, + ErrorResult& aError); +Maybe<already_AddRefed<UniFFIPointer>> UniFFIFixturesReadPointer( + const GlobalObject& aGlobal, uint64_t aId, const ArrayBuffer& aArrayBuff, + long aPosition, ErrorResult& aError); +bool UniFFIFixturesWritePointer(const GlobalObject& aGlobal, uint64_t aId, + const UniFFIPointer& aPtr, + const ArrayBuffer& aArrayBuff, long aPosition, + ErrorResult& aError); +#endif +} // namespace mozilla::uniffi + +namespace mozilla::dom { + +// Implement the interface using the generated functions + +already_AddRefed<Promise> UniFFIScaffolding::CallAsync( + const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, ErrorResult& aError) { + Maybe<already_AddRefed<Promise>> firstTry = + uniffi::UniFFICallAsync(aGlobal, aId, aArgs, aError); + if (firstTry.isSome()) { + return firstTry.extract(); + } +#ifdef MOZ_UNIFFI_FIXTURES + Maybe<already_AddRefed<Promise>> secondTry = + uniffi::UniFFIFixturesCallAsync(aGlobal, aId, aArgs, aError); + if (secondTry.isSome()) { + return secondTry.extract(); + } +#endif + + aError.ThrowUnknownError( + nsPrintfCString("Unknown function id: %" PRIu64, aId)); + return nullptr; +} + +void UniFFIScaffolding::CallSync( + const GlobalObject& aGlobal, uint64_t aId, + const Sequence<ScaffoldingType>& aArgs, + RootedDictionary<UniFFIScaffoldingCallResult>& aReturnValue, + ErrorResult& aError) { + if (uniffi::UniFFICallSync(aGlobal, aId, aArgs, aReturnValue, aError)) { + return; + } +#ifdef MOZ_UNIFFI_FIXTURES + if (uniffi::UniFFIFixturesCallSync(aGlobal, aId, aArgs, aReturnValue, + aError)) { + return; + } +#endif + + aError.ThrowUnknownError( + nsPrintfCString("Unknown function id: %" PRIu64, aId)); +} + +already_AddRefed<UniFFIPointer> UniFFIScaffolding::ReadPointer( + const GlobalObject& aGlobal, uint64_t aId, const ArrayBuffer& aArrayBuff, + long aPosition, ErrorResult& aError) { + Maybe<already_AddRefed<UniFFIPointer>> firstTry = + uniffi::UniFFIReadPointer(aGlobal, aId, aArrayBuff, aPosition, aError); + if (firstTry.isSome()) { + return firstTry.extract(); + } +#ifdef MOZ_UNIFFI_FIXTURES + Maybe<already_AddRefed<UniFFIPointer>> secondTry = + uniffi::UniFFIFixturesReadPointer(aGlobal, aId, aArrayBuff, aPosition, + aError); + if (secondTry.isSome()) { + return secondTry.extract(); + } +#endif + + aError.ThrowUnknownError(nsPrintfCString("Unknown object id: %" PRIu64, aId)); + return nullptr; +} + +void UniFFIScaffolding::WritePointer(const GlobalObject& aGlobal, uint64_t aId, + const UniFFIPointer& aPtr, + const ArrayBuffer& aArrayBuff, + long aPosition, ErrorResult& aError) { + if (uniffi::UniFFIWritePointer(aGlobal, aId, aPtr, aArrayBuff, aPosition, + aError)) { + return; + } +#ifdef MOZ_UNIFFI_FIXTURES + if (uniffi::UniFFIFixturesWritePointer(aGlobal, aId, aPtr, aArrayBuff, + aPosition, aError)) { + return; + } +#endif + + aError.ThrowUnknownError(nsPrintfCString("Unknown object id: %" PRIu64, aId)); +} + +void UniFFIScaffolding::RegisterCallbackHandler( + GlobalObject& aGlobal, uint64_t aInterfaceId, + UniFFICallbackHandler& aCallbackHandler, ErrorResult& aError) { + uniffi::RegisterCallbackHandler(aInterfaceId, aCallbackHandler, aError); +} + +void UniFFIScaffolding::DeregisterCallbackHandler(GlobalObject& aGlobal, + uint64_t aInterfaceId, + ErrorResult& aError) { + uniffi::DeregisterCallbackHandler(aInterfaceId, aError); +} + +} // namespace mozilla::dom |