@cycle/core/dist/cycle.js

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Cycle = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
"use strict";

var base_1 = require('@cycle/base');
var rx_adapter_1 = require('@cycle/rx-adapter');
/**
 * Takes a `main` function and circularly connects it to the given collection
 * of driver functions.
 *
 * **Example:**
 * ```js
 * import {run} from '@cycle/rx-run';
 * const dispose = Cycle.run(main, drivers);
 * // ...
 * dispose();
 * ```
 *
 * The `main` function expects a collection of "source" Observables (returned
 * from drivers) as input, and should return a collection of "sink" Observables
 * (to be given to drivers). A "collection of Observables" is a JavaScript
 * object where keys match the driver names registered by the `drivers` object,
 * and values are the Observables. Refer to the documentation of each driver to
 * see more details on what types of sources it outputs and sinks it receives.
 *
 * @param {Function} main a function that takes `sources` as input
 * and outputs a collection of `sinks` Observables.
 * @param {Object} drivers an object where keys are driver names and values
 * are driver functions.
 * @return {Function} a dispose function, used to terminate the execution of the
 * Cycle.js program, cleaning up resources used.
 * @function run
 */
function run(main, drivers) {
  var run = base_1.default(main, drivers, { streamAdapter: rx_adapter_1.default }).run;
  return run();
}
exports.run = run;
/**
 * A function that prepares the Cycle application to be executed. Takes a `main`
 * function and prepares to circularly connects it to the given collection of
 * driver functions. As an output, `Cycle()` returns an object with three
 * properties: `sources`, `sinks` and `run`. Only when `run()` is called will
 * the application actually execute. Refer to the documentation of `run()` for
 * more details.
 *
 * **Example:**
 * ```js
 * import Cycle from '@cycle/rx-run';
 * const {sources, sinks, run} = Cycle(main, drivers);
 * // ...
 * const dispose = run(); // Executes the application
 * // ...
 * dispose();
 * ```
 *
 * @param {Function} main a function that takes `sources` as input
 * and outputs a collection of `sinks` Observables.
 * @param {Object} drivers an object where keys are driver names and values
 * are driver functions.
 * @return {Object} an object with three properties: `sources`, `sinks` and
 * `run`. `sources` is the collection of driver sources, `sinks` is the
 * collection of driver sinks, these can be used for debugging or testing. `run`
 * is the function that once called will execute the application.
 * @function Cycle
 */
var Cycle = function Cycle(main, drivers) {
  return base_1.default(main, drivers, { streamAdapter: rx_adapter_1.default });
};
Cycle.run = run;
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = Cycle;


},{"@cycle/base":2,"@cycle/rx-adapter":3}],2:[function(require,module,exports){
"use strict";

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

function logToConsoleError(err) {
    var target = err.stack || err;
    if (console && console.error) {
        console.error(target);
    } else if (console && console.log) {
        console.log(target);
    }
}
function makeSinkProxies(drivers, streamAdapter) {
    var sinkProxies = {};
    for (var name_1 in drivers) {
        if (drivers.hasOwnProperty(name_1)) {
            var holdSubject = streamAdapter.makeSubject();
            var driverStreamAdapter = drivers[name_1].streamAdapter || streamAdapter;
            var stream = driverStreamAdapter.adapt(holdSubject.stream, streamAdapter.streamSubscribe);
            sinkProxies[name_1] = {
                stream: stream,
                observer: holdSubject.observer
            };
        }
    }
    return sinkProxies;
}
function callDrivers(drivers, sinkProxies, streamAdapter) {
    var sources = {};
    for (var name_2 in drivers) {
        if (drivers.hasOwnProperty(name_2)) {
            var driverOutput = drivers[name_2](sinkProxies[name_2].stream, streamAdapter, name_2);
            var driverStreamAdapter = drivers[name_2].streamAdapter;
            if (driverStreamAdapter && driverStreamAdapter.isValidStream(driverOutput)) {
                sources[name_2] = streamAdapter.adapt(driverOutput, driverStreamAdapter.streamSubscribe);
            } else {
                sources[name_2] = driverOutput;
            }
        }
    }
    return sources;
}
function replicateMany(sinks, sinkProxies, streamAdapter) {
    var results = Object.keys(sinks).filter(function (name) {
        return !!sinkProxies[name];
    }).map(function (name) {
        return streamAdapter.streamSubscribe(sinks[name], {
            next: function next(x) {
                sinkProxies[name].observer.next(x);
            },
            error: function error(err) {
                logToConsoleError(err);
                sinkProxies[name].observer.error(err);
            },
            complete: function complete(x) {
                sinkProxies[name].observer.complete(x);
            }
        });
    });
    var disposeFunctions = results.filter(function (dispose) {
        return typeof dispose === 'function';
    });
    return function () {
        disposeFunctions.forEach(function (dispose) {
            return dispose();
        });
    };
}
function disposeSources(sources) {
    for (var k in sources) {
        if (sources.hasOwnProperty(k) && sources[k] && typeof sources[k].dispose === 'function') {
            sources[k].dispose();
        }
    }
}
var isObjectEmpty = function isObjectEmpty(obj) {
    return Object.keys(obj).length === 0;
};
function Cycle(main, drivers, options) {
    if (typeof main !== "function") {
        throw new Error("First argument given to Cycle must be the 'main' " + "function.");
    }
    if ((typeof drivers === 'undefined' ? 'undefined' : _typeof(drivers)) !== "object" || drivers === null) {
        throw new Error("Second argument given to Cycle must be an object " + "with driver functions as properties.");
    }
    if (isObjectEmpty(drivers)) {
        throw new Error("Second argument given to Cycle must be an object " + "with at least one driver function declared as a property.");
    }
    var streamAdapter = options.streamAdapter;
    if (!streamAdapter || isObjectEmpty(streamAdapter)) {
        throw new Error("Third argument given to Cycle must be an options object " + "with the streamAdapter key supplied with a valid stream adapter.");
    }
    var sinkProxies = makeSinkProxies(drivers, streamAdapter);
    var sources = callDrivers(drivers, sinkProxies, streamAdapter);
    var sinks = main(sources);
    if (typeof window !== 'undefined') {
        window.Cyclejs = { sinks: sinks };
    }
    var run = function run() {
        var disposeReplication = replicateMany(sinks, sinkProxies, streamAdapter);
        return function () {
            disposeSources(sources);
            disposeReplication();
        };
    };
    return { sinks: sinks, sources: sources, run: run };
}
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = Cycle;


},{}],3:[function(require,module,exports){
"use strict";
var Rx = require('rx');
var RxJSAdapter = {
    adapt: function (originStream, originStreamSubscribe) {
        if (this.isValidStream(originStream)) {
            return originStream;
        }
        return Rx.Observable.create(function (destinationObserver) {
            var originObserver = {
                next: function (x) { return destinationObserver.onNext(x); },
                error: function (e) { return destinationObserver.onError(e); },
                complete: function () { return destinationObserver.onCompleted(); },
            };
            var dispose = originStreamSubscribe(originStream, originObserver);
            return function () {
                if (typeof dispose === 'function') {
                    dispose.call(null);
                }
            };
        });
    },
    remember: function (observable) {
        return observable.shareReplay(1);
    },
    makeSubject: function () {
        var stream = new Rx.Subject();
        var observer = {
            next: function (x) { stream.onNext(x); },
            error: function (err) { stream.onError(err); },
            complete: function (x) { stream.onCompleted(); }
        };
        return { stream: stream, observer: observer };
    },
    isValidStream: function (stream) {
        return (typeof stream.subscribeOnNext === 'function' &&
            typeof stream.onValue !== 'function');
    },
    streamSubscribe: function (stream, observer) {
        var subscription = stream.subscribe(function (x) { return observer.next(x); }, function (e) { return observer.error(e); }, function (x) { return observer.complete(x); });
        return function () {
            subscription.dispose();
        };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = RxJSAdapter;

},{"rx":undefined}]},{},[1])(1)
});