diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/rxjs/src/internal/observable/bindNodeCallback.ts')
-rw-r--r-- | tools/node_modules/eslint/node_modules/rxjs/src/internal/observable/bindNodeCallback.ts | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/tools/node_modules/eslint/node_modules/rxjs/src/internal/observable/bindNodeCallback.ts b/tools/node_modules/eslint/node_modules/rxjs/src/internal/observable/bindNodeCallback.ts deleted file mode 100644 index d40e4fb6a4..0000000000 --- a/tools/node_modules/eslint/node_modules/rxjs/src/internal/observable/bindNodeCallback.ts +++ /dev/null @@ -1,278 +0,0 @@ -import { Observable } from '../Observable'; -import { AsyncSubject } from '../AsyncSubject'; -import { Subscriber } from '../Subscriber'; -import { SchedulerAction, SchedulerLike } from '../types'; -import { map } from '../operators/map'; -import { canReportError } from '../util/canReportError'; -import { isScheduler } from '../util/isScheduler'; -import { isArray } from '../util/isArray'; - -/* tslint:disable:max-line-length */ -/** @deprecated resultSelector is deprecated, pipe to map instead */ -export function bindNodeCallback(callbackFunc: Function, resultSelector: Function, scheduler?: SchedulerLike): (...args: any[]) => Observable<any>; - -export function bindNodeCallback<R1, R2, R3, R4>(callbackFunc: (callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<R1, R2, R3>(callbackFunc: (callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): () => Observable<[R1, R2, R3]>; -export function bindNodeCallback<R1, R2>(callbackFunc: (callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): () => Observable<[R1, R2]>; -export function bindNodeCallback<R1>(callbackFunc: (callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): () => Observable<R1>; -export function bindNodeCallback(callbackFunc: (callback: (err: any) => any) => any, scheduler?: SchedulerLike): () => Observable<void>; - -export function bindNodeCallback<A1, R1, R2, R3, R4>(callbackFunc: (arg1: A1, callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<A1, R1, R2, R3>(callbackFunc: (arg1: A1, callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): (arg1: A1) => Observable<[R1, R2, R3]>; -export function bindNodeCallback<A1, R1, R2>(callbackFunc: (arg1: A1, callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): (arg1: A1) => Observable<[R1, R2]>; -export function bindNodeCallback<A1, R1>(callbackFunc: (arg1: A1, callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): (arg1: A1) => Observable<R1>; -export function bindNodeCallback<A1>(callbackFunc: (arg1: A1, callback: (err: any) => any) => any, scheduler?: SchedulerLike): (arg1: A1) => Observable<void>; - -export function bindNodeCallback<A1, A2, R1, R2, R3, R4>(callbackFunc: (arg1: A1, arg2: A2, callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<A1, A2, R1, R2, R3>(callbackFunc: (arg1: A1, arg2: A2, callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2) => Observable<[R1, R2, R3]>; -export function bindNodeCallback<A1, A2, R1, R2>(callbackFunc: (arg1: A1, arg2: A2, callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2) => Observable<[R1, R2]>; -export function bindNodeCallback<A1, A2, R1>(callbackFunc: (arg1: A1, arg2: A2, callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2) => Observable<R1>; -export function bindNodeCallback<A1, A2>(callbackFunc: (arg1: A1, arg2: A2, callback: (err: any) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2) => Observable<void>; - -export function bindNodeCallback<A1, A2, A3, R1, R2, R3, R4>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<A1, A2, A3, R1, R2, R3>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3) => Observable<[R1, R2, R3]>; -export function bindNodeCallback<A1, A2, A3, R1, R2>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3) => Observable<[R1, R2]>; -export function bindNodeCallback<A1, A2, A3, R1>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3) => Observable<R1>; -export function bindNodeCallback<A1, A2, A3>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, callback: (err: any) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3) => Observable<void>; - -export function bindNodeCallback<A1, A2, A3, A4, R1, R2, R3, R4>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<A1, A2, A3, A4, R1, R2, R3>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4) => Observable<[R1, R2, R3]>; -export function bindNodeCallback<A1, A2, A3, A4, R1, R2>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4) => Observable<[R1, R2]>; -export function bindNodeCallback<A1, A2, A3, A4, R1>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4) => Observable<R1>; -export function bindNodeCallback<A1, A2, A3, A4>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, callback: (err: any) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4) => Observable<void>; - -export function bindNodeCallback<A1, A2, A3, A4, A5, R1, R2, R3, R4>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any, res1: R1, res2: R2, res3: R3, res4: R4, ...args: any[]) => any) => any, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -export function bindNodeCallback<A1, A2, A3, A4, A5, R1, R2, R3>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any, res1: R1, res2: R2, res3: R3) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5) => Observable<[R1, R2, R3]>; -export function bindNodeCallback<A1, A2, A3, A4, A5, R1, R2>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any, res1: R1, res2: R2) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5) => Observable<[R1, R2]>; -export function bindNodeCallback<A1, A2, A3, A4, A5, R1>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any, res1: R1) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5) => Observable<R1>; -export function bindNodeCallback<A1, A2, A3, A4, A5>(callbackFunc: (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5, callback: (err: any) => any) => any, scheduler?: SchedulerLike): (arg1: A1, arg2: A2, arg3: A3, arg4: A4, arg5: A5) => Observable<void>; /* tslint:enable:max-line-length */ - -export function bindNodeCallback(callbackFunc: Function, scheduler?: SchedulerLike): (...args: any[]) => Observable<any[]>; -/** - * Converts a Node.js-style callback API to a function that returns an - * Observable. - * - * <span class="informal">It's just like {@link bindCallback}, but the - * callback is expected to be of type `callback(error, result)`.</span> - * - * `bindNodeCallback` is not an operator because its input and output are not - * Observables. The input is a function `func` with some parameters, but the - * last parameter must be a callback function that `func` calls when it is - * done. The callback function is expected to follow Node.js conventions, - * where the first argument to the callback is an error object, signaling - * whether call was successful. If that object is passed to callback, it means - * something went wrong. - * - * The output of `bindNodeCallback` is a function that takes the same - * parameters as `func`, except the last one (the callback). When the output - * function is called with arguments, it will return an Observable. - * If `func` calls its callback with error parameter present, Observable will - * error with that value as well. If error parameter is not passed, Observable will emit - * second parameter. If there are more parameters (third and so on), - * Observable will emit an array with all arguments, except first error argument. - * - * Note that `func` will not be called at the same time output function is, - * but rather whenever resulting Observable is subscribed. By default call to - * `func` will happen synchronously after subscription, but that can be changed - * with proper `scheduler` provided as optional third parameter. {@link SchedulerLike} - * can also control when values from callback will be emitted by Observable. - * To find out more, check out documentation for {@link bindCallback}, where - * {@link SchedulerLike} works exactly the same. - * - * As in {@link bindCallback}, context (`this` property) of input function will be set to context - * of returned function, when it is called. - * - * After Observable emits value, it will complete immediately. This means - * even if `func` calls callback again, values from second and consecutive - * calls will never appear on the stream. If you need to handle functions - * that call callbacks multiple times, check out {@link fromEvent} or - * {@link fromEventPattern} instead. - * - * Note that `bindNodeCallback` can be used in non-Node.js environments as well. - * "Node.js-style" callbacks are just a convention, so if you write for - * browsers or any other environment and API you use implements that callback style, - * `bindNodeCallback` can be safely used on that API functions as well. - * - * Remember that Error object passed to callback does not have to be an instance - * of JavaScript built-in `Error` object. In fact, it does not even have to an object. - * Error parameter of callback function is interpreted as "present", when value - * of that parameter is truthy. It could be, for example, non-zero number, non-empty - * string or boolean `true`. In all of these cases resulting Observable would error - * with that value. This means usually regular style callbacks will fail very often when - * `bindNodeCallback` is used. If your Observable errors much more often then you - * would expect, check if callback really is called in Node.js-style and, if not, - * switch to {@link bindCallback} instead. - * - * Note that even if error parameter is technically present in callback, but its value - * is falsy, it still won't appear in array emitted by Observable. - * - * ## Examples - * ### Read a file from the filesystem and get the data as an Observable - * ```javascript - * import * as fs from 'fs'; - * const readFileAsObservable = bindNodeCallback(fs.readFile); - * const result = readFileAsObservable('./roadNames.txt', 'utf8'); - * result.subscribe(x => console.log(x), e => console.error(e)); - * ``` - * - * ### Use on function calling callback with multiple arguments - * ```javascript - * someFunction((err, a, b) => { - * console.log(err); // null - * console.log(a); // 5 - * console.log(b); // "some string" - * }); - * const boundSomeFunction = bindNodeCallback(someFunction); - * boundSomeFunction() - * .subscribe(value => { - * console.log(value); // [5, "some string"] - * }); - * ``` - * - * ### Use on function calling callback in regular style - * ```javascript - * someFunction(a => { - * console.log(a); // 5 - * }); - * const boundSomeFunction = bindNodeCallback(someFunction); - * boundSomeFunction() - * .subscribe( - * value => {} // never gets called - * err => console.log(err) // 5 - * ); - * ``` - * - * @see {@link bindCallback} - * @see {@link from} - * - * @param {function} func Function with a Node.js-style callback as the last parameter. - * @param {SchedulerLike} [scheduler] The scheduler on which to schedule the - * callbacks. - * @return {function(...params: *): Observable} A function which returns the - * Observable that delivers the same values the Node.js callback would - * deliver. - * @name bindNodeCallback - */ -export function bindNodeCallback<T>( - callbackFunc: Function, - resultSelector: Function|SchedulerLike, - scheduler?: SchedulerLike -): (...args: any[]) => Observable<T> { - - if (resultSelector) { - if (isScheduler(resultSelector)) { - scheduler = resultSelector; - } else { - // DEPRECATED PATH - return (...args: any[]) => bindNodeCallback(callbackFunc, scheduler)(...args).pipe( - map(args => isArray(args) ? resultSelector(...args) : resultSelector(args)) - ); - } - } - - return function(this: any, ...args: any[]): Observable<T> { - const params: ParamsState<T> = { - subject: undefined, - args, - callbackFunc, - scheduler, - context: this, - }; - return new Observable<T>(subscriber => { - const { context } = params; - let { subject } = params; - if (!scheduler) { - if (!subject) { - subject = params.subject = new AsyncSubject<T>(); - const handler = (...innerArgs: any[]) => { - const err = innerArgs.shift(); - - if (err) { - subject.error(err); - return; - } - - subject.next(innerArgs.length <= 1 ? innerArgs[0] : innerArgs); - subject.complete(); - }; - - try { - callbackFunc.apply(context, [...args, handler]); - } catch (err) { - if (canReportError(subject)) { - subject.error(err); - } else { - console.warn(err); - } - } - } - return subject.subscribe(subscriber); - } else { - return scheduler.schedule<DispatchState<T>>(dispatch, 0, { params, subscriber, context }); - } - }); - }; -} - -interface DispatchState<T> { - subscriber: Subscriber<T>; - context: any; - params: ParamsState<T>; -} - -interface ParamsState<T> { - callbackFunc: Function; - args: any[]; - scheduler: SchedulerLike; - subject: AsyncSubject<T>; - context: any; -} - -function dispatch<T>(this: SchedulerAction<DispatchState<T>>, state: DispatchState<T>) { - const { params, subscriber, context } = state; - const { callbackFunc, args, scheduler } = params; - let subject = params.subject; - - if (!subject) { - subject = params.subject = new AsyncSubject<T>(); - - const handler = (...innerArgs: any[]) => { - const err = innerArgs.shift(); - if (err) { - this.add(scheduler.schedule<DispatchErrorArg<T>>(dispatchError, 0, { err, subject })); - } else { - const value = innerArgs.length <= 1 ? innerArgs[0] : innerArgs; - this.add(scheduler.schedule<DispatchNextArg<T>>(dispatchNext, 0, { value, subject })); - } - }; - - try { - callbackFunc.apply(context, [...args, handler]); - } catch (err) { - this.add(scheduler.schedule<DispatchErrorArg<T>>(dispatchError, 0, { err, subject })); - } - } - - this.add(subject.subscribe(subscriber)); -} - -interface DispatchNextArg<T> { - subject: AsyncSubject<T>; - value: T; -} - -function dispatchNext<T>(arg: DispatchNextArg<T>) { - const { value, subject } = arg; - subject.next(value); - subject.complete(); -} - -interface DispatchErrorArg<T> { - subject: AsyncSubject<T>; - err: any; -} - -function dispatchError<T>(arg: DispatchErrorArg<T>) { - const { err, subject } = arg; - subject.error(err); -} |