ui/node_modules/rxjs/dist/esm5/internal/observable/bindCallbackInternals.js

import { __read, __spreadArray } from "tslib";
import { isScheduler } from '../util/isScheduler';
import { Observable } from '../Observable';
import { subscribeOn } from '../operators/subscribeOn';
import { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';
import { observeOn } from '../operators/observeOn';
import { AsyncSubject } from '../AsyncSubject';
export function bindCallbackInternals(isNodeStyle, callbackFunc, resultSelector, scheduler) {
    if (resultSelector) {
        if (isScheduler(resultSelector)) {
            scheduler = resultSelector;
        }
        else {
            return function () {
                var args = [];
                for (var _i = 0; _i < arguments.length; _i++) {
                    args[_i] = arguments[_i];
                }
                return bindCallbackInternals(isNodeStyle, callbackFunc, scheduler)
                    .apply(this, args)
                    .pipe(mapOneOrManyArgs(resultSelector));
            };
        }
    }
    if (scheduler) {
        return function () {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            return bindCallbackInternals(isNodeStyle, callbackFunc)
                .apply(this, args)
                .pipe(subscribeOn(scheduler), observeOn(scheduler));
        };
    }
    return function () {
        var _this = this;
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        var subject = new AsyncSubject();
        var uninitialized = true;
        return new Observable(function (subscriber) {
            var subs = subject.subscribe(subscriber);
            if (uninitialized) {
                uninitialized = false;
                var isAsync_1 = false;
                var isComplete_1 = false;
                callbackFunc.apply(_this, __spreadArray(__spreadArray([], __read(args)), [
                    function () {
                        var results = [];
                        for (var _i = 0; _i < arguments.length; _i++) {
                            results[_i] = arguments[_i];
                        }
                        if (isNodeStyle) {
                            var err = results.shift();
                            if (err != null) {
                                subject.error(err);
                                return;
                            }
                        }
                        subject.next(1 < results.length ? results : results[0]);
                        isComplete_1 = true;
                        if (isAsync_1) {
                            subject.complete();
                        }
                    },
                ]));
                if (isComplete_1) {
                    subject.complete();
                }
                isAsync_1 = true;
            }
            return subs;
        });
    };
}
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