'use strict';
exports.__esModule = true;
exports['default'] = bufferCount;
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 _Subscriber2 = require('../Subscriber');
var _Subscriber3 = _interopRequireDefault(_Subscriber2);
/**
* buffers a number of values from the source observable by `bufferSize` then emits the buffer and clears it, and starts a
* new buffer each `startBufferEvery` values. If `startBufferEvery` is not provided or is `null`, then new buffers are
* started immediately at the start of the source and when each buffer closes and is emitted.
* @param {number} bufferSize the maximum size of the buffer emitted.
* @param {number} [startBufferEvery] optional interval at which to start a new buffer. (e.g. if `startBufferEvery` is `2`,asdf then a
* new buffer will be started on every other value from the source.) A new buffer is started at the beginning of the source by default.
* @returns {Observable<T[]>} an observable of arrays of buffered values.
*/
function bufferCount(bufferSize) {
var startBufferEvery = arguments.length <= 1 || arguments[1] === undefined ? null : arguments[1];
return this.lift(new BufferCountOperator(bufferSize, startBufferEvery));
}
var BufferCountOperator = (function () {
function BufferCountOperator(bufferSize, startBufferEvery) {
_classCallCheck(this, BufferCountOperator);
this.bufferSize = bufferSize;
this.startBufferEvery = startBufferEvery;
}
BufferCountOperator.prototype.call = function call(subscriber) {
return new BufferCountSubscriber(subscriber, this.bufferSize, this.startBufferEvery);
};
return BufferCountOperator;
})();
var BufferCountSubscriber = (function (_Subscriber) {
_inherits(BufferCountSubscriber, _Subscriber);
function BufferCountSubscriber(destination, bufferSize, startBufferEvery) {
_classCallCheck(this, BufferCountSubscriber);
_Subscriber.call(this, destination);
this.bufferSize = bufferSize;
this.startBufferEvery = startBufferEvery;
this.buffers = [[]];
this.count = 0;
}
//# sourceMappingURL=bufferCount.js.map
BufferCountSubscriber.prototype._next = function _next(value) {
var count = this.count += 1;
var destination = this.destination;
var bufferSize = this.bufferSize;
var startBufferEvery = this.startBufferEvery == null ? bufferSize : this.startBufferEvery;
var buffers = this.buffers;
var len = buffers.length;
var remove = -1;
if (count % startBufferEvery === 0) {
buffers.push([]);
}
for (var i = 0; i < len; i++) {
var buffer = buffers[i];
buffer.push(value);
if (buffer.length === bufferSize) {
remove = i;
this.destination.next(buffer);
}
}
if (remove !== -1) {
buffers.splice(remove, 1);
}
};
BufferCountSubscriber.prototype._error = function _error(err) {
this.destination.error(err);
};
BufferCountSubscriber.prototype._complete = function _complete() {
var destination = this.destination;
var buffers = this.buffers;
while (buffers.length > 0) {
var buffer = buffers.shift();
if (buffer.length > 0) {
destination.next(buffer);
}
}
destination.complete();
};
return BufferCountSubscriber;
})(_Subscriber3['default']);
module.exports = exports['default'];
//# sourceMappingURL=bufferCount.js.map |