f25b21537e
Added the UniffiAsyncCallHandler class. It follows the same basic pattern as UniffiSyncCallHandler, but for async calls. UniffiCallHandlerBase contains shared code between the two. Replaced `use_async_wrapper` with `call_style`, which returns 1 of three options rather than a boolean. This required a slight change to the async config for constructors. User now need to specify `Object.new` instead of `Object`. One upside is that it also allows configuring non-primary constructors. Added a test fixture for this. I used this fixture as an opportunity to sketch out how I think this would work with the application-services code and why this is an improvement over the current system for auto-generating async wrappers. Pass the buildconfig ENV when building the uniffi component libraries. We need this if we want to depend on crates like `moz_task`. Differential Revision: https://phabricator.services.mozilla.com/D227553
132 lines
5.1 KiB
C++
132 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <inttypes.h>
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#include "nsError.h"
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#include "nsString.h"
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#include "nsPrintfCString.h"
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#include "mozilla/Logging.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/UniFFICall.h"
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#include "mozilla/dom/UniFFICallbacks.h"
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#include "mozilla/dom/UniFFIScaffolding.h"
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// This file implements the UniFFI WebIDL interface by leveraging the generate
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// code in UniFFIScaffolding.cpp and UniFFIFixtureScaffolding.cpp. It's main
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// purpose is to check if MOZ_UNIFFI_FIXTURES is set and only try calling the
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// scaffolding code if it is.
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using mozilla::dom::ArrayBuffer;
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using mozilla::dom::GlobalObject;
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using mozilla::dom::Promise;
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using mozilla::dom::RootedDictionary;
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using mozilla::dom::Sequence;
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using mozilla::dom::UniFFICallbackHandler;
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using mozilla::dom::UniFFIPointer;
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using mozilla::dom::UniFFIScaffoldingCallResult;
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using mozilla::dom::UniFFIScaffoldingValue;
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using mozilla::uniffi::UniffiAsyncCallHandler;
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using mozilla::uniffi::UniffiSyncCallHandler;
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namespace mozilla::uniffi {
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mozilla::LazyLogModule gUniffiLogger("uniffi");
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// Implemented in UniFFIGeneratedScaffolding.cpp
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UniquePtr<UniffiSyncCallHandler> GetSyncCallHandler(uint64_t aId);
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UniquePtr<UniffiAsyncCallHandler> GetAsyncCallHandler(uint64_t aId);
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Maybe<already_AddRefed<UniFFIPointer>> ReadPointer(
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const GlobalObject& aGlobal, uint64_t aId, const ArrayBuffer& aArrayBuff,
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long aPosition, ErrorResult& aError);
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bool WritePointer(const GlobalObject& aGlobal, uint64_t aId,
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const UniFFIPointer& aPtr, const ArrayBuffer& aArrayBuff,
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long aPosition, ErrorResult& aError);
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} // namespace mozilla::uniffi
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namespace mozilla::dom {
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// Implement the interface using the generated functions
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void UniFFIScaffolding::CallSync(
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const GlobalObject& aGlobal, uint64_t aId,
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const Sequence<UniFFIScaffoldingValue>& aArgs,
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RootedDictionary<UniFFIScaffoldingCallResult>& aReturnValue,
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ErrorResult& aError) {
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if (UniquePtr<UniffiSyncCallHandler> handler =
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uniffi::GetSyncCallHandler(aId)) {
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return UniffiSyncCallHandler::CallSync(std::move(handler), aGlobal, aArgs,
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aReturnValue, aError);
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}
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aError.ThrowUnknownError(
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nsPrintfCString("Unknown function id: %" PRIu64, aId));
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}
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already_AddRefed<Promise> UniFFIScaffolding::CallAsync(
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const GlobalObject& aGlobal, uint64_t aId,
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const Sequence<UniFFIScaffoldingValue>& aArgs, ErrorResult& aError) {
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if (UniquePtr<UniffiAsyncCallHandler> handler =
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uniffi::GetAsyncCallHandler(aId)) {
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return UniffiAsyncCallHandler::CallAsync(std::move(handler), aGlobal, aArgs,
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aError);
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}
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aError.ThrowUnknownError(
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nsPrintfCString("Unknown function id: %" PRIu64, aId));
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return nullptr;
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}
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already_AddRefed<Promise> UniFFIScaffolding::CallAsyncWrapper(
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const GlobalObject& aGlobal, uint64_t aId,
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const Sequence<UniFFIScaffoldingValue>& aArgs, ErrorResult& aError) {
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if (UniquePtr<UniffiSyncCallHandler> handler =
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uniffi::GetSyncCallHandler(aId)) {
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return UniffiSyncCallHandler::CallAsyncWrapper(std::move(handler), aGlobal,
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aArgs, aError);
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}
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aError.ThrowUnknownError(
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nsPrintfCString("Unknown function id: %" PRIu64, aId));
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return nullptr;
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}
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already_AddRefed<UniFFIPointer> UniFFIScaffolding::ReadPointer(
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const GlobalObject& aGlobal, uint64_t aId, const ArrayBuffer& aArrayBuff,
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long aPosition, ErrorResult& aError) {
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Maybe<already_AddRefed<UniFFIPointer>> firstTry =
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uniffi::ReadPointer(aGlobal, aId, aArrayBuff, aPosition, aError);
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if (firstTry.isSome()) {
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return firstTry.extract();
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}
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aError.ThrowUnknownError(nsPrintfCString("Unknown object id: %" PRIu64, aId));
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return nullptr;
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}
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void UniFFIScaffolding::WritePointer(const GlobalObject& aGlobal, uint64_t aId,
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const UniFFIPointer& aPtr,
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const ArrayBuffer& aArrayBuff,
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long aPosition, ErrorResult& aError) {
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if (uniffi::WritePointer(aGlobal, aId, aPtr, aArrayBuff, aPosition, aError)) {
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return;
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}
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aError.ThrowUnknownError(nsPrintfCString("Unknown object id: %" PRIu64, aId));
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}
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void UniFFIScaffolding::RegisterCallbackHandler(
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GlobalObject& aGlobal, uint64_t aInterfaceId,
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UniFFICallbackHandler& aCallbackHandler, ErrorResult& aError) {
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uniffi::RegisterCallbackHandler(aInterfaceId, aCallbackHandler, aError);
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}
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void UniFFIScaffolding::DeregisterCallbackHandler(GlobalObject& aGlobal,
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uint64_t aInterfaceId,
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ErrorResult& aError) {
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uniffi::DeregisterCallbackHandler(aInterfaceId, aError);
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}
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} // namespace mozilla::dom
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