ix/asynciterable/create.js

The Interactive Extensions for JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.create = void 0;
const tslib_1 = require("tslib");
const asynciterablex_js_1 = require("./asynciterablex.js");
const aborterror_js_1 = require("../aborterror.js");
class AnonymousAsyncIterable extends asynciterablex_js_1.AsyncIterableX {
    constructor(fn) {
        super();
        this._fn = fn;
    }
    [Symbol.asyncIterator](signal) {
        return tslib_1.__asyncGenerator(this, arguments, function* _a() {
            (0, aborterror_js_1.throwIfAborted)(signal);
            const it = yield tslib_1.__await(this._fn(signal));
            let next;
            while (!(next = yield tslib_1.__await(it.next())).done) {
                yield yield tslib_1.__await(next.value);
            }
        });
    }
}
/**
 * Creates a new iterable using the specified function implementing the members of AsyncIterable
 *
 * @template T The type of the elements returned by the enumerable sequence.
 * @param {((signal?: AbortSignal) => AsyncIterator<T> | Promise<AsyncIterator<T>>)} fn The function that creates the [Symbol.asyncIterator]() method
 * @returns {AsyncIterableX<T>} A new async-iterable instance.
 */
function create(fn) {
    return new AnonymousAsyncIterable(fn);
}
exports.create = create;

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