Files
bun.sh/src/js/builtins/ReadableByteStreamController.ts

94 lines
4.2 KiB
TypeScript

/*
* Copyright (C) 2016 Canon Inc.
*
* 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. ``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
* 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 initializeReadableByteStreamController(this, stream, underlyingByteSource, highWaterMark) {
if (arguments.length !== 4 && arguments[3] !== $isReadableStream)
throw new TypeError("ReadableByteStreamController constructor should not be called directly");
return $privateInitializeReadableByteStreamController.$call(this, stream, underlyingByteSource, highWaterMark);
}
export function enqueue(this: ReadableByteStreamController, chunk: ArrayBufferView) {
if (!$isReadableByteStreamController(this)) throw $ERR_INVALID_THIS("ReadableByteStreamController");
if ($getByIdDirectPrivate(this, "closeRequested")) throw $ERR_INVALID_STATE_TypeError("Controller is already closed");
if ($getByIdDirectPrivate($getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== $streamReadable)
throw $ERR_INVALID_STATE_TypeError("Controller is already closed");
if (!$isObject(chunk) || !ArrayBuffer.$isView(chunk))
throw $ERR_INVALID_ARG_TYPE("buffer", "Buffer, TypedArray, or DataView", chunk);
return $readableByteStreamControllerEnqueue(this, chunk);
}
export function error(this: ReadableByteStreamController, error: any) {
if (!$isReadableByteStreamController(this)) throw $ERR_INVALID_THIS("ReadableByteStreamController");
if ($getByIdDirectPrivate($getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== $streamReadable)
throw $ERR_INVALID_STATE_TypeError("Controller is already closed");
$readableByteStreamControllerError(this, error);
}
export function close(this: ReadableByteStreamController) {
if (!$isReadableByteStreamController(this)) throw $ERR_INVALID_THIS("ReadableByteStreamController");
if ($getByIdDirectPrivate(this, "closeRequested")) throw new TypeError("Close has already been requested");
if ($getByIdDirectPrivate($getByIdDirectPrivate(this, "controlledReadableStream"), "state") !== $streamReadable)
throw $ERR_INVALID_STATE_TypeError("Controller is already closed");
$readableByteStreamControllerClose(this);
}
$getter;
export function byobRequest(this) {
if (!$isReadableByteStreamController(this)) throw $makeGetterTypeError("ReadableByteStreamController", "byobRequest");
var request = $getByIdDirectPrivate(this, "byobRequest");
if (request === undefined) {
var pending = $getByIdDirectPrivate(this, "pendingPullIntos");
const firstDescriptor = pending.peek();
if (firstDescriptor) {
const view = new Uint8Array(
firstDescriptor.buffer,
firstDescriptor.byteOffset + firstDescriptor.bytesFilled,
firstDescriptor.byteLength - firstDescriptor.bytesFilled,
);
$putByIdDirectPrivate(this, "byobRequest", new ReadableStreamBYOBRequest(this, view, $isReadableStream));
}
}
return $getByIdDirectPrivate(this, "byobRequest");
}
$getter;
export function desiredSize(this) {
if (!$isReadableByteStreamController(this)) throw $makeGetterTypeError("ReadableByteStreamController", "desiredSize");
return $readableByteStreamControllerGetDesiredSize(this);
}