web-streams-polyfill/dist/ponyfill.es5.js

Web Streams, based on the WHATWG spec reference implementation

/**
 * @license
 * web-streams-polyfill v4.0.0
 * Copyright 2024 Mattias Buelens, Diwank Singh Tomer and other contributors.
 * This code is released under the MIT license.
 * SPDX-License-Identifier: MIT
 */
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r.toStringTag&&Object.defineProperty(cr.prototype,r.toStringTag,{value:"ReadableStreamBYOBReader",configurable:!0});var Tr="function"==typeof AbortController;var Pr=function(){function WritableStream(e,r){void 0===e&&(e={}),void 0===r&&(r={}),void 0===e?e=null:x(e,"First parameter");var t=mr(r,"Second parameter"),n=function(e,r){I(e,r);var t=null==e?void 0:e.abort,n=null==e?void 0:e.close,o=null==e?void 0:e.start,a=null==e?void 0:e.type,i=null==e?void 0:e.write;return{abort:void 0===t?void 0:yr(t,e,"".concat(r," has member 'abort' that")),close:void 0===n?void 0:gr(n,e,"".concat(r," has member 'close' that")),start:void 0===o?void 0:Sr(o,e,"".concat(r," has member 'start' that")),write:void 0===i?void 0:wr(i,e,"".concat(r," has member 'write' that")),type:a}}(e,"First parameter");if(qr(this),void 0!==n.type)throw new RangeError("Invalid type is specified");var o=_r(t);!function(e,r,t,n){var o,a,i,u,l=Object.create(Vr.prototype);o=void 0!==r.start?function(){return 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Cr(e){return new Fr(e)}function qr(e){e._state="writable",e._storedError=void 0,e._writer=void 0,e._writableStreamController=void 0,e._writeRequests=new R,e._inFlightWriteRequest=void 0,e._closeRequest=void 0,e._inFlightCloseRequest=void 0,e._pendingAbortRequest=void 0,e._backpressure=!1}function Er(e){return!!n(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_writableStreamController")&&e instanceof Pr)}function Or(e){return void 0!==e._writer}function Wr(e,r){var t;if("closed"===e._state||"errored"===e._state)return d(void 0);e._writableStreamController._abortReason=r,null===(t=e._writableStreamController._abortController)||void 0===t||t.abort(r);var n=e._state;if("closed"===n||"errored"===n)return d(void 0);if(void 0!==e._pendingAbortRequest)return e._pendingAbortRequest._promise;var o=!1;"erroring"===n&&(o=!0,r=void 0);var a=f((function(t,n){e._pendingAbortRequest={_promise:void 0,_resolve:t,_reject:n,_reason:r,_wasAlreadyErroring:o}}));return 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WritableStreamDefaultWriter(e){if(Y(e,1,"WritableStreamDefaultWriter"),Rr(e,"First parameter"),Or(e))throw new TypeError("This stream has already been locked for exclusive writing by another writer");this._ownerWritableStream=e,e._writer=this;var r,t=e._state;if("writable"===t)!zr(e)&&e._backpressure?st(this):ft(this),at(this);else if("erroring"===t)ct(this,e._storedError),at(this);else if("closed"===t)ft(this),at(r=this),lt(r);else{var n=e._storedError;ct(this,n),it(this,n)}}return Object.defineProperty(WritableStreamDefaultWriter.prototype,"closed",{get:function(){return Ir(this)?this._closedPromise:b(nt("closed"))},enumerable:!1,configurable:!0}),Object.defineProperty(WritableStreamDefaultWriter.prototype,"desiredSize",{get:function(){if(!Ir(this))throw nt("desiredSize");if(void 0===this._ownerWritableStream)throw ot("desiredSize");return function(e){var r=e._ownerWritableStream,t=r._state;if("errored"===t||"erroring"===t)return null;if("closed"===t)return 0;return Jr(r._writableStreamController)}(this)},enumerable:!1,configurable:!0}),Object.defineProperty(WritableStreamDefaultWriter.prototype,"ready",{get:function(){return Ir(this)?this._readyPromise:b(nt("ready"))},enumerable:!1,configurable:!0}),WritableStreamDefaultWriter.prototype.abort=function(e){return void 0===e&&(e=void 0),Ir(this)?void 0===this._ownerWritableStream?b(ot("abort")):function(e,r){return Wr(e._ownerWritableStream,r)}(this,e):b(nt("abort"))},WritableStreamDefaultWriter.prototype.close=function(){if(!Ir(this))return b(nt("close"));var e=this._ownerWritableStream;return void 0===e?b(ot("close")):zr(e)?b(new TypeError("Cannot close an already-closing stream")):Mr(this)},WritableStreamDefaultWriter.prototype.releaseLock=function(){if(!Ir(this))throw nt("releaseLock");void 0!==this._ownerWritableStream&&Qr(this)},WritableStreamDefaultWriter.prototype.write=function(e){return void 0===e&&(e=void 0),Ir(this)?void 0===this._ownerWritableStream?b(ot("write 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Object.defineProperty(WritableStreamDefaultController.prototype,"abortReason",{get:function(){if(!Ur(this))throw tt("abortReason");return this._abortReason},enumerable:!1,configurable:!0}),Object.defineProperty(WritableStreamDefaultController.prototype,"signal",{get:function(){if(!Ur(this))throw tt("signal");if(void 0===this._abortController)throw new TypeError("WritableStreamDefaultController.prototype.signal is not supported");return this._abortController.signal},enumerable:!1,configurable:!0}),WritableStreamDefaultController.prototype.error=function(e){if(void 0===e&&(e=void 0),!Ur(this))throw tt("error");"writable"===this._controlledWritableStream._state&&et(this,e)},WritableStreamDefaultController.prototype[T]=function(e){var r=this._abortAlgorithm(e);return Xr(this),r},WritableStreamDefaultController.prototype[P]=function(){Ce(this)},WritableStreamDefaultController}();function Ur(e){return!!n(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_controlledWritableStream")&&e instanceof Vr)}function Gr(e,r,t,n,o,a,i,u){r._controlledWritableStream=e,e._writableStreamController=r,r._queue=void 0,r._queueTotalSize=void 0,Ce(r),r._abortReason=void 0,r._abortController=function(){if(Tr)return new AbortController}(),r._started=!1,r._strategySizeAlgorithm=u,r._strategyHWM=i,r._writeAlgorithm=n,r._closeAlgorithm=o,r._abortAlgorithm=a;var l=$r(r);Dr(e,l),h(d(t()),(function(){return r._started=!0,Kr(r),null}),(function(t){return r._started=!0,Br(e,t),null}))}function Xr(e){e._writeAlgorithm=void 0,e._closeAlgorithm=void 0,e._abortAlgorithm=void 0,e._strategySizeAlgorithm=void 0}function Jr(e){return e._strategyHWM-e._queueTotalSize}function Kr(e){var r=e._controlledWritableStream;if(e._started&&void 0===r._inFlightWriteRequest)if("erroring"!==r._state){if(0!==e._queue.length){var t=e._queue.peek().value;t===Hr?function(e){var r=e._controlledWritableStream;(function(e){e._inFlightCloseRequest=e._closeRequest,e._closeRequest=void 0})(r),Te(e);var t=e._closeAlgorithm();Xr(e),h(t,(function(){return function(e){e._inFlightCloseRequest._resolve(void 0),e._inFlightCloseRequest=void 0,"erroring"===e._state&&(e._storedError=void 0,void 0!==e._pendingAbortRequest&&(e._pendingAbortRequest._resolve(),e._pendingAbortRequest=void 0)),e._state="closed";var r=e._writer;void 0!==r&&lt(r)}(r),null}),(function(e){return function(e,r){e._inFlightCloseRequest._reject(r),e._inFlightCloseRequest=void 0,void 0!==e._pendingAbortRequest&&(e._pendingAbortRequest._reject(r),e._pendingAbortRequest=void 0),Br(e,r)}(r,e),null}))}(e):function(e,r){var t=e._controlledWritableStream;!function(e){e._inFlightWriteRequest=e._writeRequests.shift()}(t);var n=e._writeAlgorithm(r);h(n,(function(){!function(e){e._inFlightWriteRequest._resolve(void 0),e._inFlightWriteRequest=void 0}(t);var r=t._state;if(Te(e),!zr(t)&&"writable"===r){var n=$r(e);Dr(t,n)}return Kr(e),null}),(function(r){return"writable"===t._state&&Xr(e),function(e,r){e._inFlightWriteRequest._reject(r),e._inFlightWriteRequest=void 0,Br(e,r)}(t,r),null}))}(e,t)}}else Ar(r)}function Zr(e,r){"writable"===e._controlledWritableStream._state&&et(e,r)}function $r(e){return Jr(e)<=0}function et(e,r){var t=e._controlledWritableStream;Xr(e),kr(t,r)}function rt(e){return new TypeError("WritableStream.prototype.".concat(e," can only be used on a WritableStream"))}function tt(e){return new TypeError("WritableStreamDefaultController.prototype.".concat(e," can only be used on a WritableStreamDefaultController"))}function nt(e){return new TypeError("WritableStreamDefaultWriter.prototype.".concat(e," can only be used on a WritableStreamDefaultWriter"))}function ot(e){return new TypeError("Cannot "+e+" a stream using a released writer")}function at(e){e._closedPromise=f((function(r,t){e._closedPromise_resolve=r,e._closedPromise_reject=t,e._closedPromiseState="pending"}))}function 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