96 lines
3.1 KiB
JavaScript
96 lines
3.1 KiB
JavaScript
/*
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* Copyright (C) 2014, 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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function catch(onRejected)
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{
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"use strict";
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return this.then(@undefined, onRejected);
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}
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function then(onFulfilled, onRejected)
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{
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"use strict";
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if (!@isPromise(this))
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@throwTypeError("|this| is not a Promise");
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var constructor = @speciesConstructor(this, @Promise);
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var promise;
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var promiseOrCapability;
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if (constructor === @Promise) {
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promiseOrCapability = @newPromise();
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promise = promiseOrCapability;
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} else {
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promiseOrCapability = @newPromiseCapabilitySlow(constructor);
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promise = promiseOrCapability.@promise;
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}
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@performPromiseThen(this, onFulfilled, onRejected, promiseOrCapability);
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return promise;
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}
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function finally(onFinally)
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{
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"use strict";
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if (!@isObject(this))
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@throwTypeError("|this| is not an object");
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var constructor = @speciesConstructor(this, @Promise);
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@assert(@isConstructor(constructor));
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var thenFinally;
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var catchFinally;
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if (!@isCallable(onFinally)) {
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thenFinally = onFinally;
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catchFinally = onFinally;
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} else {
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thenFinally = (0, /* prevent function name inference */ (value) => {
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@assert(@isCallable(onFinally));
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var result = onFinally();
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@assert(@isConstructor(constructor));
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var promise = @promiseResolve(constructor, result);
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return promise.then(() => value);
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});
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catchFinally = (0, /* prevent function name inference */ (reason) => {
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@assert(@isCallable(onFinally));
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var result = onFinally();
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@assert(@isConstructor(constructor));
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var promise = @promiseResolve(constructor, result);
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return promise.then(() => { throw reason; });
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});
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}
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return this.then(thenFinally, catchFinally);
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}
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