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83405297e7
Moved the SpiderMonkey-intensive parts to `UniFFIJsBridge`. My hope here is that UniFFI engineers can update the code to response to FFI layer changes, without having to learn a ton about the JS layer -- and vice-versa for DOM engineers. Couple other smaller changes: * Updated the UniFFICall code to use "Lift" and "Lower". I'd like to start leaning into these terms more, since their useful and devs already understand them. I think I avoided this because it means that values get lifted multiple times, but I don't think that's hard to understand. * Removed module descriptions from the README. I'd rather put docstrings in the source files, since there's less chance of those getting stale. Differential Revision: https://phabricator.services.mozilla.com/D240697
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/uniffi/Call.h"
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#include "mozilla/uniffi/ResultPromise.h"
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namespace mozilla::uniffi {
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void ResultPromise::Init(const dom::GlobalObject& aGlobal,
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ErrorResult& aError) {
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nsCOMPtr<nsIGlobalObject> xpcomGlobal =
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do_QueryInterface(aGlobal.GetAsSupports());
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RefPtr<dom::Promise> promise = dom::Promise::Create(xpcomGlobal, aError);
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if (aError.Failed()) {
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return;
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}
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mPromise =
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new nsMainThreadPtrHolder<dom::Promise>("uniffi::ResultPromise", promise);
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}
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void ResultPromise::Complete(UniquePtr<UniffiCallHandlerBase> aHandler) {
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MOZ_ASSERT(mPromise);
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NS_DispatchToMainThread(NS_NewRunnableFunction(
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"uniffi::ResultPromise::Complete",
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[promise = mPromise, handler = std::move(aHandler)]() {
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dom::AutoEntryScript aes(promise->GetGlobalObject(),
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"uniffi::ResultPromise::Complete");
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dom::RootedDictionary<dom::UniFFIScaffoldingCallResult> returnValue(
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aes.cx());
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ErrorResult error;
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handler->LiftCallResult(aes.cx(), returnValue, error);
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error.WouldReportJSException();
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if (error.Failed()) {
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promise->MaybeReject(std::move(error));
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} else {
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promise->MaybeResolve(returnValue);
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}
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}));
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}
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void ResultPromise::RejectWithUnexpectedError() {
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MOZ_ASSERT(mPromise);
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NS_DispatchToMainThread(NS_NewRunnableFunction(
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"uniffi::ResultPromise::RejectWithUnexpectedError", [promise = mPromise] {
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promise->MaybeRejectWithUnknownError(
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"UniFFI Unexpected Internal Error");
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}));
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}
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} // namespace mozilla::uniffi
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