Code coverage report for RxJS/dist/cjs/operators/bufferToggle.js

Statements: 98.11% (104 / 106)      Branches: 70% (14 / 20)      Functions: 100% (24 / 24)      Lines: 100% (98 / 98)      Ignored: none     

All files » RxJS/dist/cjs/operators/ » bufferToggle.js
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'use strict';
 
exports.__esModule = true;
exports['default'] = bufferToggle;
 
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
 
function _inherits(subClass, superClass) { Iif (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); Eif (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
function _classCallCheck(instance, Constructor) { Iif (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
 
var _Subscriber4 = require('../Subscriber');
 
var _Subscriber5 = _interopRequireDefault(_Subscriber4);
 
var _Subscription = require('../Subscription');
 
var _Subscription2 = _interopRequireDefault(_Subscription);
 
var _utilTryCatch = require('../util/tryCatch');
 
var _utilTryCatch2 = _interopRequireDefault(_utilTryCatch);
 
var _utilErrorObject = require('../util/errorObject');
 
/**
 * buffers values from the source by opening the buffer via signals from an observable provided to `openings`, and closing
 * and sending the buffers when an observable returned by the `closingSelector` emits.
 * @param {Observable<O>} openings An observable of notifications to start new buffers
 * @param {Function} an function, that takes the value emitted by the `openings` observable and returns an Observable, which,
 *  when it emits, signals that the associated buffer should be emitted and cleared.
 * @returns {Observable<T[]>} an observable of arrays of buffered values.
 */
 
function bufferToggle(openings, closingSelector) {
    return this.lift(new BufferToggleOperator(openings, closingSelector));
}
 
var BufferToggleOperator = (function () {
    function BufferToggleOperator(openings, closingSelector) {
        _classCallCheck(this, BufferToggleOperator);
 
        this.openings = openings;
        this.closingSelector = closingSelector;
    }
 
    BufferToggleOperator.prototype.call = function call(subscriber) {
        return new BufferToggleSubscriber(subscriber, this.openings, this.closingSelector);
    };
 
    return BufferToggleOperator;
})();
 
var BufferToggleSubscriber = (function (_Subscriber) {
    _inherits(BufferToggleSubscriber, _Subscriber);
 
    function BufferToggleSubscriber(destination, openings, closingSelector) {
        _classCallCheck(this, BufferToggleSubscriber);
 
        _Subscriber.call(this, destination);
        this.openings = openings;
        this.closingSelector = closingSelector;
        this.contexts = [];
        this.add(this.openings._subscribe(new BufferToggleOpeningsSubscriber(this)));
    }
 
    BufferToggleSubscriber.prototype._next = function _next(value) {
        var contexts = this.contexts;
        var len = contexts.length;
        for (var i = 0; i < len; i++) {
            contexts[i].buffer.push(value);
        }
    };
 
    BufferToggleSubscriber.prototype._error = function _error(err) {
        this.contexts = null;
        this.destination.error(err);
    };
 
    BufferToggleSubscriber.prototype._complete = function _complete() {
        var contexts = this.contexts;
        while (contexts.length > 0) {
            var context = contexts.shift();
            this.destination.next(context.buffer);
            context.subscription.unsubscribe();
            context.buffer = null;
        }
        this.destination.complete();
    };
 
    BufferToggleSubscriber.prototype.openBuffer = function openBuffer(value) {
        var closingSelector = this.closingSelector;
        var contexts = this.contexts;
        var closingNotifier = _utilTryCatch2['default'](closingSelector)(value);
        if (closingNotifier === _utilErrorObject.errorObject) {
            var err = closingNotifier.e;
            this.contexts = null;
            this.destination.error(err);
        } else {
            var context = {
                buffer: [],
                subscription: new _Subscription2['default']()
            };
            contexts.push(context);
            var subscriber = new BufferClosingNotifierSubscriber(this, context);
            var subscription = closingNotifier._subscribe(subscriber);
            this.add(context.subscription.add(subscription));
        }
    };
 
    BufferToggleSubscriber.prototype.closeBuffer = function closeBuffer(context) {
        var contexts = this.contexts;
        if (contexts === null) {
            return;
        }
        var buffer = context.buffer;
        var subscription = context.subscription;
 
        this.destination.next(buffer);
        contexts.splice(contexts.indexOf(context), 1);
        this.remove(subscription);
        subscription.unsubscribe();
    };
 
    return BufferToggleSubscriber;
})(_Subscriber5['default']);
 
var BufferClosingNotifierSubscriber = (function (_Subscriber2) {
    _inherits(BufferClosingNotifierSubscriber, _Subscriber2);
 
    function BufferClosingNotifierSubscriber(parent, context) {
        _classCallCheck(this, BufferClosingNotifierSubscriber);
 
        _Subscriber2.call(this, null);
        this.parent = parent;
        this.context = context;
    }
 
    BufferClosingNotifierSubscriber.prototype._next = function _next() {
        this.parent.closeBuffer(this.context);
    };
 
    BufferClosingNotifierSubscriber.prototype._error = function _error(err) {
        this.parent.error(err);
    };
 
    BufferClosingNotifierSubscriber.prototype._complete = function _complete() {
        this.parent.closeBuffer(this.context);
    };
 
    return BufferClosingNotifierSubscriber;
})(_Subscriber5['default']);
 
var BufferToggleOpeningsSubscriber = (function (_Subscriber3) {
    _inherits(BufferToggleOpeningsSubscriber, _Subscriber3);
 
    function BufferToggleOpeningsSubscriber(parent) {
        _classCallCheck(this, BufferToggleOpeningsSubscriber);
 
        _Subscriber3.call(this, null);
        this.parent = parent;
    }
 
    BufferToggleOpeningsSubscriber.prototype._next = function _next(value) {
        this.parent.openBuffer(value);
    };
 
    BufferToggleOpeningsSubscriber.prototype._error = function _error(err) {
        this.parent.error(err);
    };
 
    BufferToggleOpeningsSubscriber.prototype._complete = function _complete() {
        // noop
    };
 
    return BufferToggleOpeningsSubscriber;
})(_Subscriber5['default']);
 
module.exports = exports['default'];