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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /xpcom/threads/MozPromiseInlines.h
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--xpcom/threads/MozPromiseInlines.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/xpcom/threads/MozPromiseInlines.h b/xpcom/threads/MozPromiseInlines.h
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+/* -*- 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 MozPromiseInlines_h_
+#define MozPromiseInlines_h_
+
+#include <type_traits>
+
+#include "mozilla/MozPromise.h"
+#include "mozilla/dom/PrimitiveConversions.h"
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/PromiseNativeHandler.h"
+
+namespace mozilla {
+
+// Creates a C++ MozPromise from its JS counterpart, dom::Promise.
+// FromDomPromise currently only supports primitive types (int8/16/32, float,
+// double) And the reject value type must be a nsresult.
+template <typename ResolveValueT, typename RejectValueT, bool IsExclusive>
+RefPtr<MozPromise<ResolveValueT, RejectValueT, IsExclusive>>
+MozPromise<ResolveValueT, RejectValueT, IsExclusive>::FromDomPromise(
+ dom::Promise* aDOMPromise) {
+ static_assert(std::is_same_v<RejectValueType, nsresult>,
+ "Reject type must be nsresult");
+ RefPtr<Private> p = new Private(__func__);
+ RefPtr<dom::DomPromiseListener> listener = new dom::DomPromiseListener(
+ [p](JSContext* aCx, JS::Handle<JS::Value> aValue) {
+ ResolveValueT value;
+ bool ok = dom::ValueToPrimitive<ResolveValueT,
+ dom::ConversionBehavior::eDefault>(
+ aCx, aValue, "Resolution value", &value);
+ if (!ok) {
+ p->Reject(NS_ERROR_FAILURE, __func__);
+ return;
+ }
+ p->Resolve(value, __func__);
+ },
+ [p](nsresult aError) { p->Reject(aError, __func__); });
+ aDOMPromise->AppendNativeHandler(listener);
+ return p;
+}
+
+} // namespace mozilla
+
+#endif