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/*
* Copyright (C) 2024 Keith Cirkel <webkit@keithcirkel.co.uk>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
// https://github.com/WICG/observable
typedef (SubscriptionObserverCallback or SubscriptionObserver) ObserverUnion;
typedef (SubscriptionObserverCallback or ObservableInspector) ObservableInspectorUnion;
[
Exposed=(Window,Worker),
EnabledBySetting=ObservableEnabled
]
interface Observable {
constructor(SubscriberCallback callback);
[CallWith=CurrentScriptExecutionContext, RaisesException] undefined subscribe(optional ObserverUnion observer = {}, optional SubscribeOptions options = {});
// Observable-returning operators.
[CallWith=CurrentScriptExecutionContext] Observable map(MapperCallback mapper);
[CallWith=CurrentScriptExecutionContext] Observable filter(PredicateCallback predicate);
[CallWith=CurrentScriptExecutionContext] Observable take(unsigned long long amount);
[CallWith=CurrentScriptExecutionContext] Observable drop(unsigned long long amount);
[CallWith=CurrentScriptExecutionContext] Observable inspect(optional ObservableInspectorUnion inspectorUnion = {});
// Promise-returning operators.
[CallWith=CurrentScriptExecutionContext] Promise<any> first(optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<undefined> forEach(VisitorCallback callback, optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<any> last(optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<any> find(PredicateCallback callback, optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<boolean> every(PredicateCallback callback, optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<boolean> some(PredicateCallback callback, optional SubscribeOptions options = {});
[CallWith=CurrentScriptExecutionContext] Promise<any> reduce(ReducerCallback callback, optional any initialValue, optional SubscribeOptions options = {});
};
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