web-streams-polyfill/dist/ponyfill.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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ReadableStreamBYOBReader{constructor(e){if(M(e,1,"ReadableStreamBYOBReader"),H(e,"First parameter"),Br(e))throw new TypeError("This stream has already been locked for exclusive reading by another reader");if(!Ce(e._readableStreamController))throw new TypeError("Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte source");E(this,e),this._readIntoRequests=new w}get closed(){return at(this)?this._closedPromise:f(st("closed"))}cancel(e=void 0){return at(this)?void 0===this._ownerReadableStream?f(O("cancel")):W(this,e):f(st("cancel"))}read(e,t={}){if(!at(this))return f(st("read"));if(!ArrayBuffer.isView(e))return f(new TypeError("view must be an array buffer view"));if(0===e.byteLength)return f(new TypeError("view must have non-zero byteLength"));if(0===e.buffer.byteLength)return f(new TypeError("view's buffer must have non-zero byteLength"));if(se(e.buffer))return f(new TypeError("view's buffer has been detached"));let r;try{r=function(e,t){var r;return F(e,t),{min:N(null!==(r=null==e?void 0:e.min)&&void 0!==r?r:1,`${t} has member 'min' that`)}}(t,"options")}catch(e){return f(e)}const o=r.min;if(0===o)return f(new TypeError("options.min must be greater than 0"));if(function(e){return Te(e.constructor)}(e)){if(o>e.byteLength)return f(new RangeError("options.min must be less than or equal to view's byteLength"))}else if(o>e.length)return f(new RangeError("options.min must be less than or equal to view's length"));if(void 0===this._ownerReadableStream)return f(O("read from"));let n,a;const i=c(((e,t)=>{n=e,a=t}));return it(this,e,o,{_chunkSteps:e=>n({value:e,done:!1}),_closeSteps:e=>n({value:e,done:!0}),_errorSteps:e=>a(e)}),i}releaseLock(){if(!at(this))throw st("releaseLock");void 0!==this._ownerReadableStream&&function(e){B(e);const t=new TypeError("Reader was released");lt(e,t)}(this)}}function at(e){return!!r(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_readIntoRequests")&&e instanceof ReadableStreamBYOBReader)}function it(e,t,r,o){const n=e._ownerReadableStream;n._disturbed=!0,"errored"===n._state?o._errorSteps(n._storedError):Ie(n._readableStreamController,t,r,o)}function lt(e,t){const r=e._readIntoRequests;e._readIntoRequests=new w,r.forEach((e=>{e._errorSteps(t)}))}function st(e){return new TypeError(`ReadableStreamBYOBReader.prototype.${e} can only be used on a ReadableStreamBYOBReader`)}function ut(e,t){const{highWaterMark:r}=e;if(void 0===r)return t;if(Se(r)||r<0)throw new RangeError("Invalid highWaterMark");return r}function ct(e){const{size:t}=e;return t||(()=>1)}function dt(e,t){F(e,t);const r=null==e?void 0:e.highWaterMark,o=null==e?void 0:e.size;return{highWaterMark:void 0===r?void 0:x(r),size:void 0===o?void 0:ft(o,`${t} has member 'size' that`)}}function ft(e,t){return I(e,t),t=>x(e(t))}function bt(e,t,r){return I(e,r),r=>v(e,t,[r])}function ht(e,t,r){return I(e,r),()=>v(e,t,[])}function mt(e,t,r){return I(e,r),r=>g(e,t,[r])}function _t(e,t,r){return I(e,r),(r,o)=>v(e,t,[r,o])}function pt(e,t){if(!vt(e))throw new TypeError(`${t} is not a WritableStream.`)}Object.defineProperties(ReadableStreamBYOBReader.prototype,{cancel:{enumerable:!0},read:{enumerable:!0},releaseLock:{enumerable:!0},closed:{enumerable:!0}}),n(ReadableStreamBYOBReader.prototype.cancel,"cancel"),n(ReadableStreamBYOBReader.prototype.read,"read"),n(ReadableStreamBYOBReader.prototype.releaseLock,"releaseLock"),"symbol"==typeof Symbol.toStringTag&&Object.defineProperty(ReadableStreamBYOBReader.prototype,Symbol.toStringTag,{value:"ReadableStreamBYOBReader",configurable:!0});const yt="function"==typeof AbortController;class WritableStream{constructor(e={},t={}){void 0===e?e=null:$(e,"First parameter");const r=dt(t,"Second parameter"),o=function(e,t){F(e,t);const r=null==e?void 0:e.abort,o=null==e?void 0:e.close,n=null==e?void 0:e.start,a=null==e?void 0:e.type,i=null==e?void 0:e.write;return{abort:void 0===r?void 0:bt(r,e,`${t} has member 'abort' that`),close:void 0===o?void 0:ht(o,e,`${t} has member 'close' that`),start:void 0===n?void 0:mt(n,e,`${t} has member 'start' that`),write:void 0===i?void 0:_t(i,e,`${t} has member 'write' that`),type:a}}(e,"First parameter");gt(this);if(void 0!==o.type)throw new RangeError("Invalid type is specified");const n=ct(r);!function(e,t,r,o){const n=Object.create(WritableStreamDefaultController.prototype);let a,i,l,s;a=void 0!==t.start?()=>t.start(n):()=>{};i=void 0!==t.write?e=>t.write(e,n):()=>d(void 0);l=void 0!==t.close?()=>t.close():()=>d(void 0);s=void 0!==t.abort?e=>t.abort(e):()=>d(void 0);It(e,n,a,i,l,s,r,o)}(this,o,ut(r,1),n)}get locked(){if(!vt(this))throw Ht("locked");return wt(this)}abort(e=void 0){return vt(this)?wt(this)?f(new TypeError("Cannot abort a stream that already has a writer")):Rt(this,e):f(Ht("abort"))}close(){return vt(this)?wt(this)?f(new TypeError("Cannot close a stream that already has a writer")):Et(this)?f(new TypeError("Cannot close an already-closing stream")):Tt(this):f(Ht("close"))}getWriter(){if(!vt(this))throw Ht("getWriter");return St(this)}}function St(e){return new WritableStreamDefaultWriter(e)}function gt(e){e._state="writable",e._storedError=void 0,e._writer=void 0,e._writableStreamController=void 0,e._writeRequests=new w,e._inFlightWriteRequest=void 0,e._closeRequest=void 0,e._inFlightCloseRequest=void 0,e._pendingAbortRequest=void 0,e._backpressure=!1}function vt(e){return!!r(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_writableStreamController")&&e instanceof WritableStream)}function wt(e){return void 0!==e._writer}function Rt(e,t){var r;if("closed"===e._state||"errored"===e._state)return d(void 0);e._writableStreamController._abortReason=t,null===(r=e._writableStreamController._abortController)||void 0===r||r.abort(t);const o=e._state;if("closed"===o||"errored"===o)return d(void 0);if(void 0!==e._pendingAbortRequest)return e._pendingAbortRequest._promise;let n=!1;"erroring"===o&&(n=!0,t=void 0);const a=c(((r,o)=>{e._pendingAbortRequest={_promise:void 0,_resolve:r,_reject:o,_reason:t,_wasAlreadyErroring:n}}));return e._pendingAbortRequest._promise=a,n||Pt(e,t),a}function Tt(e){const t=e._state;if("closed"===t||"errored"===t)return f(new TypeError(`The stream (in ${t} state) is not in the writable state and cannot be closed`));const r=c(((t,r)=>{const o={_resolve:t,_reject:r};e._closeRequest=o})),o=e._writer;var n;return void 0!==o&&e._backpressure&&"writable"===t&&nr(o),we(n=e._writableStreamController,Lt,0),Yt(n),r}function Ct(e,t){"writable"!==e._state?qt(e):Pt(e,t)}function Pt(e,t){const r=e._writableStreamController;e._state="erroring",e._storedError=t;const o=e._writer;void 0!==o&&At(o,t),!function(e){if(void 0===e._inFlightWriteRequest&&void 0===e._inFlightCloseRequest)return!1;return!0}(e)&&r._started&&qt(e)}function qt(e){e._state="errored",e._writableStreamController[T]();const t=e._storedError;if(e._writeRequests.forEach((e=>{e._reject(t)})),e._writeRequests=new w,void 0===e._pendingAbortRequest)return void Wt(e);const r=e._pendingAbortRequest;if(e._pendingAbortRequest=void 0,r._wasAlreadyErroring)return r._reject(t),void Wt(e);h(e._writableStreamController[R](r._reason),(()=>(r._resolve(),Wt(e),null)),(t=>(r._reject(t),Wt(e),null)))}function Et(e){return void 0!==e._closeRequest||void 0!==e._inFlightCloseRequest}function Wt(e){void 0!==e._closeRequest&&(e._closeRequest._reject(e._storedError),e._closeRequest=void 0);const t=e._writer;void 0!==t&&Kt(t,e._storedError)}function Bt(e,t){const r=e._writer;void 0!==r&&t!==e._backpressure&&(t?function(e){er(e)}(r):nr(r)),e._backpressure=t}Object.defineProperties(WritableStream.prototype,{abort:{enumerable:!0},close:{enumerable:!0},getWriter:{enumerable:!0},locked:{enumerable:!0}}),n(WritableStream.prototype.abort,"abort"),n(WritableStream.prototype.close,"close"),n(WritableStream.prototype.getWriter,"getWriter"),"symbol"==typeof Symbol.toStringTag&&Object.defineProperty(WritableStream.prototype,Symbol.toStringTag,{value:"WritableStream",configurable:!0});class WritableStreamDefaultWriter{constructor(e){if(M(e,1,"WritableStreamDefaultWriter"),pt(e,"First parameter"),wt(e))throw new TypeError("This stream has already been locked for exclusive writing by another writer");this._ownerWritableStream=e,e._writer=this;const t=e._state;if("writable"===t)!Et(e)&&e._backpressure?er(this):rr(this),Xt(this);else if("erroring"===t)tr(this,e._storedError),Xt(this);else if("closed"===t)rr(this),Xt(r=this),Zt(r);else{const t=e._storedError;tr(this,t),Jt(this,t)}var r}get closed(){return Ot(this)?this._closedPromise:f(Ut("closed"))}get desiredSize(){if(!Ot(this))throw Ut("desiredSize");if(void 0===this._ownerWritableStream)throw Gt("desiredSize");return function(e){const t=e._ownerWritableStream,r=t._state;if("errored"===r||"erroring"===r)return null;if("closed"===r)return 0;return Mt(t._writableStreamController)}(this)}get ready(){return Ot(this)?this._readyPromise:f(Ut("ready"))}abort(e=void 0){return Ot(this)?void 0===this._ownerWritableStream?f(Gt("abort")):function(e,t){return Rt(e._ownerWritableStream,t)}(this,e):f(Ut("abort"))}close(){if(!Ot(this))return f(Ut("close"));const e=this._ownerWritableStream;return void 0===e?f(Gt("close")):Et(e)?f(new TypeError("Cannot close an already-closing stream")):jt(this)}releaseLock(){if(!Ot(this))throw Ut("releaseLock");void 0!==this._ownerWritableStream&&zt(this)}write(e=void 0){return Ot(this)?void 0===this._ownerWritableStream?f(Gt("write to")):Dt(this,e):f(Ut("write"))}}function Ot(e){return!!r(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_ownerWritableStream")&&e instanceof WritableStreamDefaultWriter)}function jt(e){return Tt(e._ownerWritableStream)}function kt(e,t){"pending"===e._closedPromiseState?Kt(e,t):function(e,t){Jt(e,t)}(e,t)}function At(e,t){"pending"===e._readyPromiseState?or(e,t):function(e,t){tr(e,t)}(e,t)}function zt(e){const t=e._ownerWritableStream,r=new TypeError("Writer was released and can no longer be used to monitor the stream's closedness");At(e,r),kt(e,r),t._writer=void 0,e._ownerWritableStream=void 0}function Dt(e,t){const r=e._ownerWritableStream,o=r._writableStreamController,n=function(e,t){try{return e._strategySizeAlgorithm(t)}catch(t){return xt(e,t),1}}(o,t);if(r!==e._ownerWritableStream)return f(Gt("write to"));const a=r._state;if("errored"===a)return f(r._storedError);if(Et(r)||"closed"===a)return f(new TypeError("The stream is closing or closed and cannot be written to"));if("erroring"===a)return f(r._storedError);const i=function(e){return c(((t,r)=>{const o={_resolve:t,_reject:r};e._writeRequests.push(o)}))}(r);return function(e,t,r){try{we(e,t,r)}catch(t){return void xt(e,t)}const o=e._controlledWritableStream;if(!Et(o)&&"writable"===o._state){Bt(o,Qt(e))}Yt(e)}(o,t,n),i}Object.defineProperties(WritableStreamDefaultWriter.prototype,{abort:{enumerable:!0},close:{enumerable:!0},releaseLock:{enumerable:!0},write:{enumerable:!0},closed:{enumerable:!0},desiredSize:{enumerable:!0},ready:{enumerable:!0}}),n(WritableStreamDefaultWriter.prototype.abort,"abort"),n(WritableStreamDefaultWriter.prototype.close,"close"),n(WritableStreamDefaultWriter.prototype.releaseLock,"releaseLock"),n(WritableStreamDefaultWriter.prototype.write,"write"),"symbol"==typeof Symbol.toStringTag&&Object.defineProperty(WritableStreamDefaultWriter.prototype,Symbol.toStringTag,{value:"WritableStreamDefaultWriter",configurable:!0});const Lt={};class WritableStreamDefaultController{constructor(){throw new TypeError("Illegal constructor")}get abortReason(){if(!Ft(this))throw Vt("abortReason");return this._abortReason}get signal(){if(!Ft(this))throw Vt("signal");if(void 0===this._abortController)throw new TypeError("WritableStreamDefaultController.prototype.signal is not supported");return this._abortController.signal}error(e=void 0){if(!Ft(this))throw Vt("error");"writable"===this._controlledWritableStream._state&&Nt(this,e)}[R](e){const t=this._abortAlgorithm(e);return $t(this),t}[T](){Re(this)}}function Ft(e){return!!r(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_controlledWritableStream")&&e instanceof WritableStreamDefaultController)}function It(e,t,r,o,n,a,i,l){t._controlledWritableStream=e,e._writableStreamController=t,t._queue=void 0,t._queueTotalSize=void 0,Re(t),t._abortReason=void 0,t._abortController=function(){if(yt)return new AbortController}(),t._started=!1,t._strategySizeAlgorithm=l,t._strategyHWM=i,t._writeAlgorithm=o,t._closeAlgorithm=n,t._abortAlgorithm=a;const s=Qt(t);Bt(e,s);h(d(r()),(()=>(t._started=!0,Yt(t),null)),(r=>(t._started=!0,Ct(e,r),null)))}function $t(e){e._writeAlgorithm=void 0,e._closeAlgorithm=void 0,e._abortAlgorithm=void 0,e._strategySizeAlgorithm=void 0}function Mt(e){return e._strategyHWM-e._queueTotalSize}function Yt(e){const t=e._controlledWritableStream;if(!e._started)return;if(void 0!==t._inFlightWriteRequest)return;if("erroring"===t._state)return void qt(t);if(0===e._queue.length)return;const r=e._queue.peek().value;r===Lt?function(e){const t=e._controlledWritableStream;(function(e){e._inFlightCloseRequest=e._closeRequest,e._closeRequest=void 0})(t),ve(e);const r=e._closeAlgorithm();$t(e),h(r,(()=>(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";const t=e._writer;void 0!==t&&Zt(t)}(t),null)),(e=>(function(e,t){e._inFlightCloseRequest._reject(t),e._inFlightCloseRequest=void 0,void 0!==e._pendingAbortRequest&&(e._pendingAbortRequest._reject(t),e._pendingAbortRequest=void 0),Ct(e,t)}(t,e),null)))}(e):function(e,t){const r=e._controlledWritableStream;!function(e){e._inFlightWriteRequest=e._writeRequests.shift()}(r);const o=e._writeAlgorithm(t);h(o,(()=>{!function(e){e._inFlightWriteRequest._resolve(void 0),e._inFlightWriteRequest=void 0}(r);const t=r._state;if(ve(e),!Et(r)&&"writable"===t){const t=Qt(e);Bt(r,t)}return Yt(e),null}),(t=>("writable"===r._state&&$t(e),function(e,t){e._inFlightWriteRequest._reject(t),e._inFlightWriteRequest=void 0,Ct(e,t)}(r,t),null)))}(e,r)}function xt(e,t){"writable"===e._controlledWritableStream._state&&Nt(e,t)}function Qt(e){return Mt(e)<=0}function Nt(e,t){const r=e._controlledWritableStream;$t(e),Pt(r,t)}function Ht(e){return new TypeError(`WritableStream.prototype.${e} can only be used on a WritableStream`)}function Vt(e){return new TypeError(`WritableStreamDefaultController.prototype.${e} can only be used on a WritableStreamDefaultController`)}function Ut(e){return new TypeError(`WritableStreamDefaultWriter.prototype.${e} can only be used on a WritableStreamDefaultWriter`)}function Gt(e){return new TypeError("Cannot "+e+" a stream using a released writer")}function Xt(e){e._closedPromise=c(((t,r)=>{e._closedPromise_resolve=t,e._closedPromise_reject=r,e._closedPromiseState="pending"}))}function Jt(e,t){Xt(e),Kt(e,t)}function Kt(e,t){void 0!==e._closedPromise_reject&&(y(e._closedPromise),e._closedPromise_reject(t),e._closedPromise_resolve=void 0,e._closedPromise_reject=void 0,e._closedPromiseState="rejected")}function Zt(e){void 0!==e._closedPromise_resolve&&(e._closedPromise_resolve(void 0),e._closedPromise_resolve=void 0,e._closedPromise_reject=void 0,e._closedPromiseState="resolved")}function er(e){e._readyPromise=c(((t,r)=>{e._readyPromise_resolve=t,e._readyPromise_reject=r})),e._readyPromiseState="pending"}function tr(e,t){er(e),or(e,t)}function rr(e){er(e),nr(e)}function or(e,t){void 0!==e._readyPromise_reject&&(y(e._readyPromise),e._readyPromise_reject(t),e._readyPromise_resolve=void 0,e._readyPromise_reject=void 0,e._readyPromiseState="rejected")}function nr(e){void 0!==e._readyPromise_resolve&&(e._readyPromise_resolve(void 0),e._readyPromise_resolve=void 0,e._readyPromise_reject=void 0,e._readyPromiseState="fulfilled")}Object.defineProperties(WritableStreamDefaultController.prototype,{abortReason:{enumerable:!0},signal:{enumerable:!0},error:{enumerable:!0}}),"symbol"==typeof Symbol.toStringTag&&Object.defineProperty(WritableStreamDefaultController.prototype,Symbol.toStringTag,{value:"WritableStreamDefaultController",configurable:!0});const ar="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self?self:"undefined"!=typeof global?global:void 0;const ir=function(){const e=null==ar?void 0:ar.DOMException;return function(e){if("function"!=typeof e&&"object"!=typeof e)return!1;if("DOMException"!==e.name)return!1;try{return new e,!0}catch(e){return!1}}(e)?e:void 0}()||function(){const e=function(e,t){this.message=e||"",this.name=t||"Error",Error.captureStackTrace&&Error.captureStackTrace(this,this.constructor)};return n(e,"DOMException"),e.prototype=Object.create(Error.prototype),Object.defineProperty(e.prototype,"constructor",{value:e,writable:!0,configurable:!0}),e}();function lr(e,r,o,n,a,i){const l=V(e),s=St(r);e._disturbed=!0;let u=!1,p=d(void 0);return c(((S,g)=>{let v;if(void 0!==i){if(v=()=>{const t=void 0!==i.reason?i.reason:new ir("Aborted","AbortError"),o=[];n||o.push((()=>"writable"===r._state?Rt(r,t):d(void 0))),a||o.push((()=>"readable"===e._state?Or(e,t):d(void 0))),q((()=>Promise.all(o.map((e=>e())))),!0,t)},i.aborted)return void v();i.addEventListener("abort",v)}var w,R,T;if(P(e,l._closedPromise,(e=>(n?E(!0,e):q((()=>Rt(r,e)),!0,e),null))),P(r,s._closedPromise,(t=>(a?E(!0,t):q((()=>Or(e,t)),!0,t),null))),w=e,R=l._closedPromise,T=()=>(o?E():q((()=>function(e){const t=e._ownerWritableStream,r=t._state;return Et(t)||"closed"===r?d(void 0):"errored"===r?f(t._storedError):jt(e)}(s))),null),"closed"===w._state?T():m(R,T),Et(r)||"closed"===r._state){const t=new TypeError("the destination writable stream closed before all data could be piped to it");a?E(!0,t):q((()=>Or(e,t)),!0,t)}function C(){const e=p;return b(p,(()=>e!==p?C():void 0))}function P(e,t,r){"errored"===e._state?r(e._storedError):_(t,r)}function q(e,t,o){function n(){return h(e(),(()=>W(t,o)),(e=>W(!0,e))),null}u||(u=!0,"writable"!==r._state||Et(r)?n():m(C(),n))}function E(e,t){u||(u=!0,"writable"!==r._state||Et(r)?W(e,t):m(C(),(()=>W(e,t))))}function W(e,t){return zt(s),B(l),void 0!==i&&i.removeEventListener("abort",v),e?g(t):S(void 0),null}y(c(((e,r)=>{!function o(n){n?e():b(u?d(!0):b(s._readyPromise,(()=>c(((e,r)=>{Z(l,{_chunkSteps:r=>{p=b(Dt(s,r),void 0,t),e(!1)},_closeSteps:()=>e(!0),_errorSteps:r})})))),o,r)}(!1)})))}))}class ReadableStreamDefaultController{constructor(){throw new TypeError("Illegal constructor")}get desiredSize(){if(!sr(this))throw yr("desiredSize");return mr(this)}close(){if(!sr(this))throw yr("close");if(!_r(this))throw new TypeError("The stream is not in a state that permits close");fr(this)}enqueue(e=void 0){if(!sr(this))throw yr("enqueue");if(!_r(this))throw new TypeError("The stream is not in a state that permits enqueue");return br(this,e)}error(e=void 0){if(!sr(this))throw yr("error");hr(this,e)}[C](e){Re(this);const t=this._cancelAlgorithm(e);return dr(this),t}[P](e){const t=this._controlledReadableStream;if(this._queue.length>0){const r=ve(this);this._closeRequested&&0===this._queue.length?(dr(this),jr(t)):ur(this),e._chunkSteps(r)}else U(t,e),ur(this)}[q](){}}function sr(e){return!!r(e)&&(!!Object.prototype.hasOwnProperty.call(e,"_controlledReadableStream")&&e instanceof ReadableStreamDefaultController)}function ur(e){if(!cr(e))return;if(e._pulling)return void(e._pullAgain=!0);e._pulling=!0;h(e._pullAlgorithm(),(()=>(e._pulling=!1,e._pullAgain&&(e._pullAgain=!1,ur(e)),null)),(t=>(hr(e,t),null)))}function cr(e){const t=e._controlledReadableStream;if(!_r(e))return!1;if(!e._started)return!1;if(Br(t)&&X(t)>0)return!0;return mr(e)>0}function dr(e){e._pullAlgorithm=void 0,e._cancelAlgorithm=void 0,e._strategySizeAlgorithm=void 0}function fr(e){if(!_r(e))return;const t=e._controlledReadableStream;e._closeRequested=!0,0===e._queue.length&&(dr(e),jr(t))}function br(e,t){if(!_r(e))return;const r=e._controlledReadableStream;if(Br(r)&&X(r)>0)G(r,t,!1);else{let r;try{r=e._strategySizeAlgorithm(t)}catch(t){throw hr(e,t),t}try{we(e,t,r)}catch(t){throw hr(e,t),t}}ur(e)}function hr(e,t){const r=e._controlledReadableStream;"readable"===r._state&&(Re(e),dr(e),kr(r,t))}function mr(e){const t=e._controlledReadableStream._state;return"errored"===t?null:"closed"===t?0:e._strategyHWM-e._queueTotalSize}function _r(e){const t=e._controlledReadableStream._state;return!e._closeRequested&&"readable"===t}function pr(e,t,r,o,n,a,i){t._controlledReadableStream=e,t._queue=void 0,t._queueTotalSize=void 0,Re(t),t._started=!1,t._closeRequested=!1,t._pullAgain=!1,t._pulling=!1,t._strategySizeAlgorithm=i,t._strategyHWM=a,t._pullAlgorithm=o,t._cancelAlgorithm=n,e._readableStreamController=t;h(d(r()),(()=>(t._started=!0,ur(t),null)),(e=>(hr(t,e),null)))}function yr(e){return new TypeError(`ReadableStreamDefaultController.prototype.${e} can only be used on a ReadableStreamDefaultController`)}function Sr(e,t){return Ce(e._readableStreamController)?function(e){let t,r,o,n,a,i=V(e),l=!1,s=!1,u=!1,f=!1,b=!1;const h=c((e=>{a=e}));function m(e){_(e._closedPromise,(t=>(e!==i||(Ne(o._readableStreamController,t),Ne(n._readableStreamController,t),f&&b||a(void 0)),null)))}function p(){at(i)&&(B(i),i=V(e),m(i));Z(i,{_chunkSteps:t=>{S((()=>{s=!1,u=!1;const r=t;let i=t;if(!f&&!b)try{i=ge(t)}catch(t){return Ne(o._readableStreamController,t),Ne(n._readableStreamController,t),void a(Or(e,t))}f||Qe(o._readableStreamController,r),b||Qe(n._readableStreamController,i),l=!1,s?g():u&&v()}))},_closeSteps:()=>{l=!1,f||xe(o._readableStreamController),b||xe(n._readableStreamController),o._readableStreamController._pendingPullIntos.length>0&&Ge(o._readableStreamController,0),n._readableStreamController._pendingPullIntos.length>0&&Ge(n._readableStreamController,0),f&&b||a(void 0)},_errorSteps:()=>{l=!1}})}function y(t,r){K(i)&&(B(i),i=tt(e),m(i));const c=r?n:o,d=r?o:n;it(i,t,1,{_chunkSteps:t=>{S((()=>{s=!1,u=!1;const o=r?b:f;if(r?f:b)o||Xe(c._readableStreamController,t);else{let r;try{r=ge(t)}catch(t){return Ne(c._readableStreamController,t),Ne(d._readableStreamController,t),void a(Or(e,t))}o||Xe(c._readableStreamController,t),Qe(d._readableStreamController,r)}l=!1,s?g():u&&v()}))},_closeSteps:e=>{l=!1;const t=r?b:f,o=r?f:b;t||xe(c._readableStreamController),o||xe(d._readableStreamController),void 0!==e&&(t||Xe(c._readableStreamController,e),!o&&d._readableStreamController._pendingPullIntos.length>0&&Ge(d._readableStreamController,0)),t&&o||a(void 0)},_errorSteps:()=>{l=!1}})}function g(){if(l)return s=!0,d(void 0);l=!0;const e=Ve(o._readableStreamController);return null===e?p():y(e._view,!1),d(void 0)}function v(){if(l)return u=!0,d(void 0);l=!0;const e=Ve(n._readableStreamController);return null===e?p():y(e._view,!0),d(void 0)}function w(o){if(f=!0,t=o,b){const o=ae([t,r]),n=Or(e,o);a(n)}return h}function R(o){if(b=!0,r=o,f){const o=ae([t,r]),n=Or(e,o);a(n)}return h}function T(){}return o=qr(T,g,w),n=qr(T,v,R),m(i),[o,n]}(e):function(e,t){const r=V(e);let o,n,a,i,l,s=!1,u=!1,f=!1,b=!1;const h=c((e=>{l=e}));function m(){if(s)return u=!0,d(void 0);s=!0;return Z(r,{_chunkSteps:e=>{S((()=>{u=!1;const t=e,r=e;f||br(a._readableStreamController,t),b||br(i._readableStreamController,r),s=!1,u&&m()}))},_closeSteps:()=>{s=!1,f||fr(a._readableStreamController),b||fr(i._readableStreamController),f&&b||l(void 0)},_errorSteps:()=>{s=!1}}),d(void 0)}function p(t){if(f=!0,o=t,b){const t=ae([o,n]),r=Or(e,t);l(r)}return h}function y(t){if(b=!0,n=t,f){const t=ae([o,n]),r=Or(e,t);l(r)}return h}function g(){}return a=Pr(g,m,p),i=Pr(g,m,y),_(r._closedPromise,(e=>(hr(a._readableStreamController,e),hr(i._readableStreamController,e),f&&b||l(void 0),null))),[a,i]}(e)}function gr(e){return r(o=e)&&void 0!==o.getReader?function(e){let o;function n(){let t;try{t=e.read()}catch(e){return f(e)}return p(t,(e=>{if(!r(e))throw new TypeError("The promise returned by the reader.read() method must fulfill with an object");if(e.done)fr(o._readableStreamController);else{const t=e.value;br(o._readableStreamController,t)}}))}function a(t){try{return d(e.cancel(t))}catch(e){return f(e)}}return o=Pr(t,n,a,0),o}(e.getReader()):function(e){let o;const n=be(e,"async");function a(){let e;try{e=he(n)}catch(e){return f(e)}return p(d(e),(e=>{if(!r(e))throw new TypeError("The promise returned by the iterator.next() method must fulfill with an object");if(e.done)fr(o._readableStreamController);else{const t=e.value;br(o._readableStreamController,t)}}))}function i(e){const t=n.iterator;let o;try{o=ce(t,"return")}catch(e){return f(e)}if(void 0===o)return d(void 0);return p(v(o,t,[e]),(e=>{if(!r(e))throw new TypeError("The promise returned by the iterator.return() method must fulfill with an object")}))}return o=Pr(t,a,i,0),o}(e);var o}function vr(e,t,r){return I(e,r),r=>v(e,t,[r])}function wr(e,t,r){return I(e,r),r=>v(e,t,[r])}function Rr(e,t,r){return I(e,r),r=>g(e,t,[r])}function Tr(e,t){if("bytes"!==(e=`${e}`))throw new TypeError(`${t} '${e}' is not a valid enumeration value for ReadableStreamType`);return e}function Cr(e,t){F(e,t);const r=null==e?void 0:e.preventAbort,o=null==e?void 0:e.preventCancel,n=null==e?void 0:e.preventClose,a=null==e?void 0:e.signal;return void 0!==a&&function(e,t){if(!function(e){if("object"!=typeof e||null===e)return!1;try{return"boolean"==typeof e.aborted}catch(e){return!1}}(e))throw new TypeError(`${t} is not an AbortSignal.`)}(a,`${t} has member 'signal' that`),{preventAbort:Boolean(r),preventCancel:Boolean(o),preventClose:Boolean(n),signal:a}}Object.defineProperties(ReadableStreamDefaultController.prototype,{close:{enumerable:!0},enqueue:{enumerable:!0},error:{enumerable:!0},desiredSize:{enumerable:!0}}),n(ReadableStreamDefaultController.prototype.close,"close"),n(ReadableStreamDefaultController.prototype.enqueue,"enqueue"),n(ReadableStreamDefaultController.prototype.error,"error"),"symbol"==typeof Symbol.toStringTag&&Object.defineProperty(ReadableStreamDefaultController.prototype,Symbol.toStringTag,{value:"ReadableStreamDefaultController",configurable:!0});class ReadableStream{constructor(e={},t={}){void 0===e?e=null:$(e,"First parameter");const r=dt(t,"Second parameter"),o=function(e,t){F(e,t);const r=e,o=null==r?void 0:r.autoAllocateChunkSize,n=null==r?void 0:r.cancel,a=null==r?void 0:r.pull,i=null==r?void 0:r.start,l=null==r?void 0:r.type;return{autoAllocateChunkSize:void 0===o?void 0:N(o,`${t} has member 'autoAllocateChunkSize' that`),cancel:void 0===n?void 0:vr(n,r,`${t} has member 'cancel' that`),pull:void 0===a?void 0:wr(a,r,`${t} has member 'pull' that`),start:void 0===i?void 0:Rr(i,r,`${t} has member 'start' that`),type:void 0===l?void 0:Tr(l,`${t} has member 'type' that`)}}(e,"First parameter");if(Er(this),"bytes"===o.type){if(void 0!==r.size)throw new RangeError("The strategy for a byte stream cannot have a size function");!function(e,t,r){const o=Object.create(ReadableByteStreamController.prototype);let n,a,i;n=void 0!==t.start?()=>t.start(o):()=>{},a=void 0!==t.pull?()=>t.pull(o):()=>d(void 0),i=void 0!==t.cancel?e=>t.cancel(e):()=>d(void 0);const l=t.autoAllocateChunkSize;if(0===l)throw new TypeError("autoAllocateChunkSize must be greater than 0");Je(e,o,n,a,i,r,l)}(this,o,ut(r,0))}else{const e=ct(r);!function(e,t,r,o){const n=Object.create(ReadableStreamDefaultController.prototype);let a,i,l;a=void 0!==t.start?()=>t.start(n):()=>{},i=void 0!==t.pull?()=>t.pull(n):()=>d(void 0),l=void 0!==t.cancel?e=>t.cancel(e):()=>d(void 0),pr(e,n,a,i,l,r,o)}(this,o,ut(r,1),e)}}get locked(){if(!Wr(this))throw Ar("locked");return Br(this)}cancel(e=void 0){return Wr(this)?Br(this)?f(new TypeError("Cannot cancel a stream that already has a reader")):Or(this,e):f(Ar("cancel"))}getReader(e=void 0){if(!Wr(this))throw Ar("getReader");return void 0===function(e,t){F(e,t);const r=null==e?void 0:e.mode;return{mode:void 0===r?void 0:et(r,`${t} has member 'mode' that`)}}(e,"First parameter").mode?V(this):tt(this)}pipeThrough(e,t={}){if(!