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// @ts-nocheck
/*
* Copyright (C) 2020 Apple Inc. 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.
*/
export function initializeTransformStream(this) {
let transformer = arguments[0];
// This is the path for CreateTransformStream.
if ($isObject(transformer) && $getByIdDirectPrivate(transformer, "TransformStream")) return this;
let writableStrategy = arguments[1];
let readableStrategy = arguments[2];
if (transformer === undefined) transformer = null;
if (readableStrategy === undefined) readableStrategy = {};
if (writableStrategy === undefined) writableStrategy = {};
let transformerDict = {};
if (transformer !== null) {
if ("start" in transformer) {
transformerDict["start"] = transformer["start"];
if (typeof transformerDict["start"] !== "function") $throwTypeError("transformer.start should be a function");
}
if ("transform" in transformer) {
transformerDict["transform"] = transformer["transform"];
if (typeof transformerDict["transform"] !== "function")
$throwTypeError("transformer.transform should be a function");
}
if ("flush" in transformer) {
transformerDict["flush"] = transformer["flush"];
if (typeof transformerDict["flush"] !== "function") $throwTypeError("transformer.flush should be a function");
}
if ("readableType" in transformer) throw new RangeError("TransformStream transformer has a readableType");
if ("writableType" in transformer) throw new RangeError("TransformStream transformer has a writableType");
}
const readableHighWaterMark = $extractHighWaterMark(readableStrategy, 0);
const readableSizeAlgorithm = $extractSizeAlgorithm(readableStrategy);
const writableHighWaterMark = $extractHighWaterMark(writableStrategy, 1);
const writableSizeAlgorithm = $extractSizeAlgorithm(writableStrategy);
const startPromiseCapability = $newPromiseCapability(Promise);
$initializeTransformStream(
this,
startPromiseCapability.$promise,
writableHighWaterMark,
writableSizeAlgorithm,
readableHighWaterMark,
readableSizeAlgorithm,
);
$setUpTransformStreamDefaultControllerFromTransformer(this, transformer, transformerDict);
if ("start" in transformerDict) {
const controller = $getByIdDirectPrivate(this, "controller");
const startAlgorithm = () => $promiseInvokeOrNoopMethodNoCatch(transformer, transformerDict["start"], [controller]);
startAlgorithm().$then(
() => {
// FIXME: We probably need to resolve start promise with the result of the start algorithm.
startPromiseCapability.$resolve.$call();
},
error => {
startPromiseCapability.$reject.$call(undefined, error);
},
);
} else startPromiseCapability.$resolve.$call();
return this;
}
$getter;
export function readable() {
if (!$isTransformStream(this)) throw $makeThisTypeError("TransformStream", "readable");
return $getByIdDirectPrivate(this, "readable");
}
export function writable() {
if (!$isTransformStream(this)) throw $makeThisTypeError("TransformStream", "writable");
return $getByIdDirectPrivate(this, "writable");
}
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