mirror of
https://github.com/denoland/deno.git
synced 2024-11-26 16:09:27 -05:00
800 lines
28 KiB
TypeScript
800 lines
28 KiB
TypeScript
// TODO reenable this code when we enable writableStreams and transport types
|
||
// // Forked from https://github.com/stardazed/sd-streams/tree/8928cf04b035fd02fb1340b7eb541c76be37e546
|
||
// // Copyright (c) 2018-Present by Arthur Langereis - @zenmumbler MIT
|
||
|
||
// /**
|
||
// * streams/writable-internals - internal types and functions for writable streams
|
||
// * Part of Stardazed
|
||
// * (c) 2018-Present by Arthur Langereis - @zenmumbler
|
||
// * https://github.com/stardazed/sd-streams
|
||
// */
|
||
|
||
// /* eslint-disable @typescript-eslint/no-explicit-any */
|
||
// // TODO reenable this lint here
|
||
|
||
// import * as shared from "./shared-internals.ts";
|
||
// import * as q from "./queue-mixin.ts";
|
||
|
||
// import { QueuingStrategy, QueuingStrategySizeCallback } from "../dom_types.ts";
|
||
|
||
// export const backpressure_ = Symbol("backpressure_");
|
||
// export const closeRequest_ = Symbol("closeRequest_");
|
||
// export const inFlightWriteRequest_ = Symbol("inFlightWriteRequest_");
|
||
// export const inFlightCloseRequest_ = Symbol("inFlightCloseRequest_");
|
||
// export const pendingAbortRequest_ = Symbol("pendingAbortRequest_");
|
||
// export const writableStreamController_ = Symbol("writableStreamController_");
|
||
// export const writer_ = Symbol("writer_");
|
||
// export const writeRequests_ = Symbol("writeRequests_");
|
||
|
||
// export const abortAlgorithm_ = Symbol("abortAlgorithm_");
|
||
// export const closeAlgorithm_ = Symbol("closeAlgorithm_");
|
||
// export const controlledWritableStream_ = Symbol("controlledWritableStream_");
|
||
// export const started_ = Symbol("started_");
|
||
// export const strategyHWM_ = Symbol("strategyHWM_");
|
||
// export const strategySizeAlgorithm_ = Symbol("strategySizeAlgorithm_");
|
||
// export const writeAlgorithm_ = Symbol("writeAlgorithm_");
|
||
|
||
// export const ownerWritableStream_ = Symbol("ownerWritableStream_");
|
||
// export const closedPromise_ = Symbol("closedPromise_");
|
||
// export const readyPromise_ = Symbol("readyPromise_");
|
||
|
||
// export const errorSteps_ = Symbol("errorSteps_");
|
||
// export const abortSteps_ = Symbol("abortSteps_");
|
||
|
||
// export type StartFunction = (
|
||
// controller: WritableStreamController
|
||
// ) => void | PromiseLike<void>;
|
||
// export type StartAlgorithm = () => Promise<void> | void;
|
||
// export type WriteFunction<InputType> = (
|
||
// chunk: InputType,
|
||
// controller: WritableStreamController
|
||
// ) => void | PromiseLike<void>;
|
||
// export type WriteAlgorithm<InputType> = (chunk: InputType) => Promise<void>;
|
||
// export type CloseAlgorithm = () => Promise<void>;
|
||
// export type AbortAlgorithm = (reason?: shared.ErrorResult) => Promise<void>;
|
||
|
||
// // ----
|
||
|
||
// export interface WritableStreamController {
|
||
// error(e?: shared.ErrorResult): void;
|
||
|
||
// [errorSteps_](): void;
|
||
// [abortSteps_](reason: shared.ErrorResult): Promise<void>;
|
||
// }
|
||
|
||
// export interface WriteRecord<InputType> {
|
||
// chunk: InputType;
|
||
// }
|
||
|
||
// export interface WritableStreamDefaultController<InputType>
|
||
// extends WritableStreamController,
|
||
// q.QueueContainer<WriteRecord<InputType> | "close"> {
|
||
// [abortAlgorithm_]: AbortAlgorithm; // A promise - returning algorithm, taking one argument(the abort reason), which communicates a requested abort to the underlying sink
|
||
// [closeAlgorithm_]: CloseAlgorithm; // A promise - returning algorithm which communicates a requested close to the underlying sink
|
||
// [controlledWritableStream_]: WritableStream<InputType>; // The WritableStream instance controlled
|
||
// [started_]: boolean; // A boolean flag indicating whether the underlying sink has finished starting
|
||
// [strategyHWM_]: number; // A number supplied by the creator of the stream as part of the stream’s queuing strategy, indicating the point at which the stream will apply backpressure to its underlying sink
|
||
// [strategySizeAlgorithm_]: QueuingStrategySizeCallback<InputType>; // An algorithm to calculate the size of enqueued chunks, as part of the stream’s queuing strategy
|
||
// [writeAlgorithm_]: WriteAlgorithm<InputType>; // A promise-returning algorithm, taking one argument (the chunk to write), which writes data to the underlying sink
|
||
// }
|
||
|
||
// // ----
|
||
|
||
// export interface WritableStreamWriter<InputType> {
|
||
// readonly closed: Promise<void>;
|
||
// readonly desiredSize: number | null;
|
||
// readonly ready: Promise<void>;
|
||
|
||
// abort(reason: shared.ErrorResult): Promise<void>;
|
||
// close(): Promise<void>;
|
||
// releaseLock(): void;
|
||
// write(chunk: InputType): Promise<void>;
|
||
// }
|
||
|
||
// export interface WritableStreamDefaultWriter<InputType>
|
||
// extends WritableStreamWriter<InputType> {
|
||
// [ownerWritableStream_]: WritableStream<InputType> | undefined;
|
||
// [closedPromise_]: shared.ControlledPromise<void>;
|
||
// [readyPromise_]: shared.ControlledPromise<void>;
|
||
// }
|
||
|
||
// // ----
|
||
|
||
// export type WritableStreamState =
|
||
// | "writable"
|
||
// | "closed"
|
||
// | "erroring"
|
||
// | "errored";
|
||
|
||
// export interface WritableStreamSink<InputType> {
|
||
// start?: StartFunction;
|
||
// write?: WriteFunction<InputType>;
|
||
// close?(): void | PromiseLike<void>;
|
||
// abort?(reason?: shared.ErrorResult): void;
|
||
|
||
// type?: undefined; // unused, for future revisions
|
||
// }
|
||
|
||
// export interface AbortRequest {
|
||
// reason: shared.ErrorResult;
|
||
// wasAlreadyErroring: boolean;
|
||
// promise: Promise<void>;
|
||
// resolve(): void;
|
||
// reject(error: shared.ErrorResult): void;
|
||
// }
|
||
|
||
// export declare class WritableStream<InputType> {
|
||
// constructor(
|
||
// underlyingSink?: WritableStreamSink<InputType>,
|
||
// strategy?: QueuingStrategy<InputType>
|
||
// );
|
||
|
||
// readonly locked: boolean;
|
||
// abort(reason?: shared.ErrorResult): Promise<void>;
|
||
// getWriter(): WritableStreamWriter<InputType>;
|
||
|
||
// [shared.state_]: WritableStreamState;
|
||
// [backpressure_]: boolean;
|
||
// [closeRequest_]: shared.ControlledPromise<void> | undefined;
|
||
// [inFlightWriteRequest_]: shared.ControlledPromise<void> | undefined;
|
||
// [inFlightCloseRequest_]: shared.ControlledPromise<void> | undefined;
|
||
// [pendingAbortRequest_]: AbortRequest | undefined;
|
||
// [shared.storedError_]: shared.ErrorResult;
|
||
// [writableStreamController_]:
|
||
// | WritableStreamDefaultController<InputType>
|
||
// | undefined;
|
||
// [writer_]: WritableStreamDefaultWriter<InputType> | undefined;
|
||
// [writeRequests_]: Array<shared.ControlledPromise<void>>;
|
||
// }
|
||
|
||
// // ---- Stream
|
||
|
||
// export function initializeWritableStream<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// stream[shared.state_] = "writable";
|
||
// stream[shared.storedError_] = undefined;
|
||
// stream[writer_] = undefined;
|
||
// stream[writableStreamController_] = undefined;
|
||
// stream[inFlightWriteRequest_] = undefined;
|
||
// stream[closeRequest_] = undefined;
|
||
// stream[inFlightCloseRequest_] = undefined;
|
||
// stream[pendingAbortRequest_] = undefined;
|
||
// stream[writeRequests_] = [];
|
||
// stream[backpressure_] = false;
|
||
// }
|
||
|
||
// export function isWritableStream(value: unknown): value is WritableStream<any> {
|
||
// if (typeof value !== "object" || value === null) {
|
||
// return false;
|
||
// }
|
||
// return writableStreamController_ in value;
|
||
// }
|
||
|
||
// export function isWritableStreamLocked<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): boolean {
|
||
// return stream[writer_] !== undefined;
|
||
// }
|
||
|
||
// export function writableStreamAbort<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// reason: shared.ErrorResult
|
||
// ): Promise<void> {
|
||
// const state = stream[shared.state_];
|
||
// if (state === "closed" || state === "errored") {
|
||
// return Promise.resolve(undefined);
|
||
// }
|
||
// let pending = stream[pendingAbortRequest_];
|
||
// if (pending !== undefined) {
|
||
// return pending.promise;
|
||
// }
|
||
// // Assert: state is "writable" or "erroring".
|
||
// let wasAlreadyErroring = false;
|
||
// if (state === "erroring") {
|
||
// wasAlreadyErroring = true;
|
||
// reason = undefined;
|
||
// }
|
||
|
||
// pending = {
|
||
// reason,
|
||
// wasAlreadyErroring
|
||
// } as AbortRequest;
|
||
// const promise = new Promise<void>((resolve, reject) => {
|
||
// pending!.resolve = resolve;
|
||
// pending!.reject = reject;
|
||
// });
|
||
// pending.promise = promise;
|
||
// stream[pendingAbortRequest_] = pending;
|
||
// if (!wasAlreadyErroring) {
|
||
// writableStreamStartErroring(stream, reason);
|
||
// }
|
||
// return promise;
|
||
// }
|
||
|
||
// export function writableStreamAddWriteRequest<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): Promise<void> {
|
||
// // Assert: !IsWritableStreamLocked(stream) is true.
|
||
// // Assert: stream.[[state]] is "writable".
|
||
// const writePromise = shared.createControlledPromise<void>();
|
||
// stream[writeRequests_].push(writePromise);
|
||
// return writePromise.promise;
|
||
// }
|
||
|
||
// export function writableStreamDealWithRejection<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// const state = stream[shared.state_];
|
||
// if (state === "writable") {
|
||
// writableStreamStartErroring(stream, error);
|
||
// return;
|
||
// }
|
||
// // Assert: state is "erroring"
|
||
// writableStreamFinishErroring(stream);
|
||
// }
|
||
|
||
// export function writableStreamStartErroring<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// reason: shared.ErrorResult
|
||
// ): void {
|
||
// // Assert: stream.[[storedError]] is undefined.
|
||
// // Assert: stream.[[state]] is "writable".
|
||
// const controller = stream[writableStreamController_]!;
|
||
// // Assert: controller is not undefined.
|
||
// stream[shared.state_] = "erroring";
|
||
// stream[shared.storedError_] = reason;
|
||
// const writer = stream[writer_];
|
||
// if (writer !== undefined) {
|
||
// writableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);
|
||
// }
|
||
// if (
|
||
// !writableStreamHasOperationMarkedInFlight(stream) &&
|
||
// controller[started_]
|
||
// ) {
|
||
// writableStreamFinishErroring(stream);
|
||
// }
|
||
// }
|
||
|
||
// export function writableStreamFinishErroring<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[state]] is "erroring".
|
||
// // Assert: writableStreamHasOperationMarkedInFlight(stream) is false.
|
||
// stream[shared.state_] = "errored";
|
||
// const controller = stream[writableStreamController_]!;
|
||
// controller[errorSteps_]();
|
||
// const storedError = stream[shared.storedError_];
|
||
// for (const writeRequest of stream[writeRequests_]) {
|
||
// writeRequest.reject(storedError);
|
||
// }
|
||
// stream[writeRequests_] = [];
|
||
|
||
// const abortRequest = stream[pendingAbortRequest_];
|
||
// if (abortRequest === undefined) {
|
||
// writableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
|
||
// return;
|
||
// }
|
||
// stream[pendingAbortRequest_] = undefined;
|
||
// if (abortRequest.wasAlreadyErroring) {
|
||
// abortRequest.reject(storedError);
|
||
// writableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
|
||
// return;
|
||
// }
|
||
// const promise = controller[abortSteps_](abortRequest.reason);
|
||
// promise.then(
|
||
// _ => {
|
||
// abortRequest.resolve();
|
||
// writableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
|
||
// },
|
||
// error => {
|
||
// abortRequest.reject(error);
|
||
// writableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
|
||
// }
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamFinishInFlightWrite<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightWriteRequest]] is not undefined.
|
||
// stream[inFlightWriteRequest_]!.resolve(undefined);
|
||
// stream[inFlightWriteRequest_] = undefined;
|
||
// }
|
||
|
||
// export function writableStreamFinishInFlightWriteWithError<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightWriteRequest]] is not undefined.
|
||
// stream[inFlightWriteRequest_]!.reject(error);
|
||
// stream[inFlightWriteRequest_] = undefined;
|
||
// // Assert: stream.[[state]] is "writable" or "erroring".
|
||
// writableStreamDealWithRejection(stream, error);
|
||
// }
|
||
|
||
// export function writableStreamFinishInFlightClose<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightCloseRequest]] is not undefined.
|
||
// stream[inFlightCloseRequest_]!.resolve(undefined);
|
||
// stream[inFlightCloseRequest_] = undefined;
|
||
// const state = stream[shared.state_];
|
||
// // Assert: stream.[[state]] is "writable" or "erroring".
|
||
// if (state === "erroring") {
|
||
// stream[shared.storedError_] = undefined;
|
||
// if (stream[pendingAbortRequest_] !== undefined) {
|
||
// stream[pendingAbortRequest_]!.resolve();
|
||
// stream[pendingAbortRequest_] = undefined;
|
||
// }
|
||
// }
|
||
// stream[shared.state_] = "closed";
|
||
// const writer = stream[writer_];
|
||
// if (writer !== undefined) {
|
||
// writer[closedPromise_].resolve(undefined);
|
||
// }
|
||
// // Assert: stream.[[pendingAbortRequest]] is undefined.
|
||
// // Assert: stream.[[storedError]] is undefined.
|
||
// }
|
||
|
||
// export function writableStreamFinishInFlightCloseWithError<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightCloseRequest]] is not undefined.
|
||
// stream[inFlightCloseRequest_]!.reject(error);
|
||
// stream[inFlightCloseRequest_] = undefined;
|
||
// // Assert: stream.[[state]] is "writable" or "erroring".
|
||
// if (stream[pendingAbortRequest_] !== undefined) {
|
||
// stream[pendingAbortRequest_]!.reject(error);
|
||
// stream[pendingAbortRequest_] = undefined;
|
||
// }
|
||
// writableStreamDealWithRejection(stream, error);
|
||
// }
|
||
|
||
// export function writableStreamCloseQueuedOrInFlight<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): boolean {
|
||
// return (
|
||
// stream[closeRequest_] !== undefined ||
|
||
// stream[inFlightCloseRequest_] !== undefined
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamHasOperationMarkedInFlight<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): boolean {
|
||
// return (
|
||
// stream[inFlightWriteRequest_] !== undefined ||
|
||
// stream[inFlightCloseRequest_] !== undefined
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamMarkCloseRequestInFlight<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightCloseRequest]] is undefined.
|
||
// // Assert: stream.[[closeRequest]] is not undefined.
|
||
// stream[inFlightCloseRequest_] = stream[closeRequest_];
|
||
// stream[closeRequest_] = undefined;
|
||
// }
|
||
|
||
// export function writableStreamMarkFirstWriteRequestInFlight<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[inFlightWriteRequest]] is undefined.
|
||
// // Assert: stream.[[writeRequests]] is not empty.
|
||
// const writeRequest = stream[writeRequests_].shift()!;
|
||
// stream[inFlightWriteRequest_] = writeRequest;
|
||
// }
|
||
|
||
// export function writableStreamRejectCloseAndClosedPromiseIfNeeded<InputType>(
|
||
// stream: WritableStream<InputType>
|
||
// ): void {
|
||
// // Assert: stream.[[state]] is "errored".
|
||
// const closeRequest = stream[closeRequest_];
|
||
// if (closeRequest !== undefined) {
|
||
// // Assert: stream.[[inFlightCloseRequest]] is undefined.
|
||
// closeRequest.reject(stream[shared.storedError_]);
|
||
// stream[closeRequest_] = undefined;
|
||
// }
|
||
// const writer = stream[writer_];
|
||
// if (writer !== undefined) {
|
||
// writer[closedPromise_].reject(stream[shared.storedError_]);
|
||
// writer[closedPromise_].promise.catch(() => {});
|
||
// }
|
||
// }
|
||
|
||
// export function writableStreamUpdateBackpressure<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// backpressure: boolean
|
||
// ): void {
|
||
// // Assert: stream.[[state]] is "writable".
|
||
// // Assert: !WritableStreamCloseQueuedOrInFlight(stream) is false.
|
||
// const writer = stream[writer_];
|
||
// if (writer !== undefined && backpressure !== stream[backpressure_]) {
|
||
// if (backpressure) {
|
||
// writer[readyPromise_] = shared.createControlledPromise<void>();
|
||
// } else {
|
||
// writer[readyPromise_].resolve(undefined);
|
||
// }
|
||
// }
|
||
// stream[backpressure_] = backpressure;
|
||
// }
|
||
|
||
// // ---- Writers
|
||
|
||
// export function isWritableStreamDefaultWriter(
|
||
// value: unknown
|
||
// ): value is WritableStreamDefaultWriter<any> {
|
||
// if (typeof value !== "object" || value === null) {
|
||
// return false;
|
||
// }
|
||
// return ownerWritableStream_ in value;
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterAbort<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>,
|
||
// reason: shared.ErrorResult
|
||
// ): Promise<void> {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// // Assert: stream is not undefined.
|
||
// return writableStreamAbort(stream, reason);
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterClose<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>
|
||
// ): Promise<void> {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// // Assert: stream is not undefined.
|
||
// const state = stream[shared.state_];
|
||
// if (state === "closed" || state === "errored") {
|
||
// return Promise.reject(
|
||
// new TypeError("Writer stream is already closed or errored")
|
||
// );
|
||
// }
|
||
// // Assert: state is "writable" or "erroring".
|
||
// // Assert: writableStreamCloseQueuedOrInFlight(stream) is false.
|
||
// const closePromise = shared.createControlledPromise<void>();
|
||
// stream[closeRequest_] = closePromise;
|
||
// if (stream[backpressure_] && state === "writable") {
|
||
// writer[readyPromise_].resolve(undefined);
|
||
// }
|
||
// writableStreamDefaultControllerClose(stream[writableStreamController_]!);
|
||
// return closePromise.promise;
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterCloseWithErrorPropagation<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>
|
||
// ): Promise<void> {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// // Assert: stream is not undefined.
|
||
// const state = stream[shared.state_];
|
||
// if (writableStreamCloseQueuedOrInFlight(stream) || state === "closed") {
|
||
// return Promise.resolve(undefined);
|
||
// }
|
||
// if (state === "errored") {
|
||
// return Promise.reject(stream[shared.storedError_]);
|
||
// }
|
||
// // Assert: state is "writable" or "erroring".
|
||
// return writableStreamDefaultWriterClose(writer);
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterEnsureClosedPromiseRejected<
|
||
// InputType
|
||
// >(
|
||
// writer: WritableStreamDefaultWriter<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// const closedPromise = writer[closedPromise_];
|
||
// if (closedPromise.state === shared.ControlledPromiseState.Pending) {
|
||
// closedPromise.reject(error);
|
||
// } else {
|
||
// writer[closedPromise_] = shared.createControlledPromise<void>();
|
||
// writer[closedPromise_].reject(error);
|
||
// }
|
||
// writer[closedPromise_].promise.catch(() => {});
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterEnsureReadyPromiseRejected<
|
||
// InputType
|
||
// >(
|
||
// writer: WritableStreamDefaultWriter<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// const readyPromise = writer[readyPromise_];
|
||
// if (readyPromise.state === shared.ControlledPromiseState.Pending) {
|
||
// readyPromise.reject(error);
|
||
// } else {
|
||
// writer[readyPromise_] = shared.createControlledPromise<void>();
|
||
// writer[readyPromise_].reject(error);
|
||
// }
|
||
// writer[readyPromise_].promise.catch(() => {});
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterGetDesiredSize<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>
|
||
// ): number | null {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// const state = stream[shared.state_];
|
||
// if (state === "errored" || state === "erroring") {
|
||
// return null;
|
||
// }
|
||
// if (state === "closed") {
|
||
// return 0;
|
||
// }
|
||
// return writableStreamDefaultControllerGetDesiredSize(
|
||
// stream[writableStreamController_]!
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterRelease<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>
|
||
// ): void {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// // Assert: stream is not undefined.
|
||
// // Assert: stream.[[writer]] is writer.
|
||
// const releasedError = new TypeError();
|
||
// writableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);
|
||
// writableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);
|
||
// stream[writer_] = undefined;
|
||
// writer[ownerWritableStream_] = undefined;
|
||
// }
|
||
|
||
// export function writableStreamDefaultWriterWrite<InputType>(
|
||
// writer: WritableStreamDefaultWriter<InputType>,
|
||
// chunk: InputType
|
||
// ): Promise<void> {
|
||
// const stream = writer[ownerWritableStream_]!;
|
||
// // Assert: stream is not undefined.
|
||
// const controller = stream[writableStreamController_]!;
|
||
// const chunkSize = writableStreamDefaultControllerGetChunkSize(
|
||
// controller,
|
||
// chunk
|
||
// );
|
||
// if (writer[ownerWritableStream_] !== stream) {
|
||
// return Promise.reject(new TypeError());
|
||
// }
|
||
// const state = stream[shared.state_];
|
||
// if (state === "errored") {
|
||
// return Promise.reject(stream[shared.storedError_]);
|
||
// }
|
||
// if (writableStreamCloseQueuedOrInFlight(stream) || state === "closed") {
|
||
// return Promise.reject(
|
||
// new TypeError("Cannot write to a closing or closed stream")
|
||
// );
|
||
// }
|
||
// if (state === "erroring") {
|
||
// return Promise.reject(stream[shared.storedError_]);
|
||
// }
|
||
// // Assert: state is "writable".
|
||
// const promise = writableStreamAddWriteRequest(stream);
|
||
// writableStreamDefaultControllerWrite(controller, chunk, chunkSize);
|
||
// return promise;
|
||
// }
|
||
|
||
// // ---- Controller
|
||
|
||
// export function setUpWritableStreamDefaultController<InputType>(
|
||
// stream: WritableStream<InputType>,
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// startAlgorithm: StartAlgorithm,
|
||
// writeAlgorithm: WriteAlgorithm<InputType>,
|
||
// closeAlgorithm: CloseAlgorithm,
|
||
// abortAlgorithm: AbortAlgorithm,
|
||
// highWaterMark: number,
|
||
// sizeAlgorithm: QueuingStrategySizeCallback<InputType>
|
||
// ): void {
|
||
// if (!isWritableStream(stream)) {
|
||
// throw new TypeError();
|
||
// }
|
||
// if (stream[writableStreamController_] !== undefined) {
|
||
// throw new TypeError();
|
||
// }
|
||
|
||
// controller[controlledWritableStream_] = stream;
|
||
// stream[writableStreamController_] = controller;
|
||
// q.resetQueue(controller);
|
||
// controller[started_] = false;
|
||
// controller[strategySizeAlgorithm_] = sizeAlgorithm;
|
||
// controller[strategyHWM_] = highWaterMark;
|
||
// controller[writeAlgorithm_] = writeAlgorithm;
|
||
// controller[closeAlgorithm_] = closeAlgorithm;
|
||
// controller[abortAlgorithm_] = abortAlgorithm;
|
||
// const backpressure = writableStreamDefaultControllerGetBackpressure(
|
||
// controller
|
||
// );
|
||
// writableStreamUpdateBackpressure(stream, backpressure);
|
||
|
||
// const startResult = startAlgorithm();
|
||
// Promise.resolve(startResult).then(
|
||
// _ => {
|
||
// // Assert: stream.[[state]] is "writable" or "erroring".
|
||
// controller[started_] = true;
|
||
// writableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
|
||
// },
|
||
// error => {
|
||
// // Assert: stream.[[state]] is "writable" or "erroring".
|
||
// controller[started_] = true;
|
||
// writableStreamDealWithRejection(stream, error);
|
||
// }
|
||
// );
|
||
// }
|
||
|
||
// export function isWritableStreamDefaultController(
|
||
// value: unknown
|
||
// ): value is WritableStreamDefaultController<any> {
|
||
// if (typeof value !== "object" || value === null) {
|
||
// return false;
|
||
// }
|
||
// return controlledWritableStream_ in value;
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerClearAlgorithms<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): void {
|
||
// // Use ! assertions to override type check here, this way we don't
|
||
// // have to perform type checks/assertions everywhere else.
|
||
// controller[writeAlgorithm_] = undefined!;
|
||
// controller[closeAlgorithm_] = undefined!;
|
||
// controller[abortAlgorithm_] = undefined!;
|
||
// controller[strategySizeAlgorithm_] = undefined!;
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerClose<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): void {
|
||
// q.enqueueValueWithSize(controller, "close", 0);
|
||
// writableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerGetChunkSize<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// chunk: InputType
|
||
// ): number {
|
||
// let chunkSize: number;
|
||
// try {
|
||
// chunkSize = controller[strategySizeAlgorithm_](chunk);
|
||
// } catch (error) {
|
||
// writableStreamDefaultControllerErrorIfNeeded(controller, error);
|
||
// chunkSize = 1;
|
||
// }
|
||
// return chunkSize;
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerGetDesiredSize<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): number {
|
||
// return controller[strategyHWM_] - controller[q.queueTotalSize_];
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerWrite<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// chunk: InputType,
|
||
// chunkSize: number
|
||
// ): void {
|
||
// try {
|
||
// q.enqueueValueWithSize(controller, { chunk }, chunkSize);
|
||
// } catch (error) {
|
||
// writableStreamDefaultControllerErrorIfNeeded(controller, error);
|
||
// return;
|
||
// }
|
||
// const stream = controller[controlledWritableStream_];
|
||
// if (
|
||
// !writableStreamCloseQueuedOrInFlight(stream) &&
|
||
// stream[shared.state_] === "writable"
|
||
// ) {
|
||
// const backpressure = writableStreamDefaultControllerGetBackpressure(
|
||
// controller
|
||
// );
|
||
// writableStreamUpdateBackpressure(stream, backpressure);
|
||
// }
|
||
// writableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerAdvanceQueueIfNeeded<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): void {
|
||
// if (!controller[started_]) {
|
||
// return;
|
||
// }
|
||
// const stream = controller[controlledWritableStream_];
|
||
// if (stream[inFlightWriteRequest_] !== undefined) {
|
||
// return;
|
||
// }
|
||
// const state = stream[shared.state_];
|
||
// if (state === "closed" || state === "errored") {
|
||
// return;
|
||
// }
|
||
// if (state === "erroring") {
|
||
// writableStreamFinishErroring(stream);
|
||
// return;
|
||
// }
|
||
// if (controller[q.queue_].length === 0) {
|
||
// return;
|
||
// }
|
||
// const writeRecord = q.peekQueueValue(controller);
|
||
// if (writeRecord === "close") {
|
||
// writableStreamDefaultControllerProcessClose(controller);
|
||
// } else {
|
||
// writableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);
|
||
// }
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerErrorIfNeeded<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// if (controller[controlledWritableStream_][shared.state_] === "writable") {
|
||
// writableStreamDefaultControllerError(controller, error);
|
||
// }
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerProcessClose<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): void {
|
||
// const stream = controller[controlledWritableStream_];
|
||
// writableStreamMarkCloseRequestInFlight(stream);
|
||
// q.dequeueValue(controller);
|
||
// // Assert: controller.[[queue]] is empty.
|
||
// const sinkClosePromise = controller[closeAlgorithm_]();
|
||
// writableStreamDefaultControllerClearAlgorithms(controller);
|
||
// sinkClosePromise.then(
|
||
// _ => {
|
||
// writableStreamFinishInFlightClose(stream);
|
||
// },
|
||
// error => {
|
||
// writableStreamFinishInFlightCloseWithError(stream, error);
|
||
// }
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerProcessWrite<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// chunk: InputType
|
||
// ): void {
|
||
// const stream = controller[controlledWritableStream_];
|
||
// writableStreamMarkFirstWriteRequestInFlight(stream);
|
||
// controller[writeAlgorithm_](chunk).then(
|
||
// _ => {
|
||
// writableStreamFinishInFlightWrite(stream);
|
||
// const state = stream[shared.state_];
|
||
// // Assert: state is "writable" or "erroring".
|
||
// q.dequeueValue(controller);
|
||
// if (
|
||
// !writableStreamCloseQueuedOrInFlight(stream) &&
|
||
// state === "writable"
|
||
// ) {
|
||
// const backpressure = writableStreamDefaultControllerGetBackpressure(
|
||
// controller
|
||
// );
|
||
// writableStreamUpdateBackpressure(stream, backpressure);
|
||
// }
|
||
// writableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
|
||
// },
|
||
// error => {
|
||
// if (stream[shared.state_] === "writable") {
|
||
// writableStreamDefaultControllerClearAlgorithms(controller);
|
||
// }
|
||
// writableStreamFinishInFlightWriteWithError(stream, error);
|
||
// }
|
||
// );
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerGetBackpressure<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>
|
||
// ): boolean {
|
||
// const desiredSize = writableStreamDefaultControllerGetDesiredSize(controller);
|
||
// return desiredSize <= 0;
|
||
// }
|
||
|
||
// export function writableStreamDefaultControllerError<InputType>(
|
||
// controller: WritableStreamDefaultController<InputType>,
|
||
// error: shared.ErrorResult
|
||
// ): void {
|
||
// const stream = controller[controlledWritableStream_];
|
||
// // Assert: stream.[[state]] is "writable".
|
||
// writableStreamDefaultControllerClearAlgorithms(controller);
|
||
// writableStreamStartErroring(stream, error);
|
||
// }
|