om/node_modules/rxjs/internal/util/subscribeTo.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Observable_1 = require("../Observable");
var subscribeToArray_1 = require("./subscribeToArray");
var subscribeToPromise_1 = require("./subscribeToPromise");
var subscribeToIterable_1 = require("./subscribeToIterable");
var subscribeToObservable_1 = require("./subscribeToObservable");
var isArrayLike_1 = require("./isArrayLike");
var isPromise_1 = require("./isPromise");
var isObject_1 = require("./isObject");
var iterator_1 = require("../symbol/iterator");
var observable_1 = require("../symbol/observable");
exports.subscribeTo = function (result) {
    if (result instanceof Observable_1.Observable) {
        return function (subscriber) {
            if (result._isScalar) {
                subscriber.next(result.value);
                subscriber.complete();
                return undefined;
            }
            else {
                return result.subscribe(subscriber);
            }
        };
    }
    else if (result && typeof result[observable_1.observable] === 'function') {
        return subscribeToObservable_1.subscribeToObservable(result);
    }
    else if (isArrayLike_1.isArrayLike(result)) {
        return subscribeToArray_1.subscribeToArray(result);
    }
    else if (isPromise_1.isPromise(result)) {
        return subscribeToPromise_1.subscribeToPromise(result);
    }
    else if (result && typeof result[iterator_1.iterator] === 'function') {
        return subscribeToIterable_1.subscribeToIterable(result);
    }
    else {
        var value = isObject_1.isObject(result) ? 'an invalid object' : "'" + result + "'";
        var msg = "You provided " + value + " where a stream was expected."
            + ' You can provide an Observable, Promise, Array, or Iterable.';
        throw new TypeError(msg);
    }
};
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