58 lines
2.8 KiB
JavaScript
58 lines
2.8 KiB
JavaScript
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import { __extends } from "tslib";
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import { Subject } from './Subject';
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import { dateTimestampProvider } from './scheduler/dateTimestampProvider';
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var ReplaySubject = (function (_super) {
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__extends(ReplaySubject, _super);
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function ReplaySubject(_bufferSize, _windowTime, _timestampProvider) {
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if (_bufferSize === void 0) { _bufferSize = Infinity; }
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if (_windowTime === void 0) { _windowTime = Infinity; }
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if (_timestampProvider === void 0) { _timestampProvider = dateTimestampProvider; }
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var _this = _super.call(this) || this;
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_this._bufferSize = _bufferSize;
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_this._windowTime = _windowTime;
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_this._timestampProvider = _timestampProvider;
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_this._buffer = [];
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_this._infiniteTimeWindow = true;
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_this._infiniteTimeWindow = _windowTime === Infinity;
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_this._bufferSize = Math.max(1, _bufferSize);
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_this._windowTime = Math.max(1, _windowTime);
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return _this;
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}
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ReplaySubject.prototype.next = function (value) {
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var _a = this, isStopped = _a.isStopped, _buffer = _a._buffer, _infiniteTimeWindow = _a._infiniteTimeWindow, _timestampProvider = _a._timestampProvider, _windowTime = _a._windowTime;
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if (!isStopped) {
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_buffer.push(value);
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!_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);
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}
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this._trimBuffer();
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_super.prototype.next.call(this, value);
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};
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ReplaySubject.prototype._subscribe = function (subscriber) {
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this._throwIfClosed();
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this._trimBuffer();
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var subscription = this._innerSubscribe(subscriber);
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var _a = this, _infiniteTimeWindow = _a._infiniteTimeWindow, _buffer = _a._buffer;
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var copy = _buffer.slice();
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for (var i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {
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subscriber.next(copy[i]);
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}
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this._checkFinalizedStatuses(subscriber);
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return subscription;
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};
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ReplaySubject.prototype._trimBuffer = function () {
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var _a = this, _bufferSize = _a._bufferSize, _timestampProvider = _a._timestampProvider, _buffer = _a._buffer, _infiniteTimeWindow = _a._infiniteTimeWindow;
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var adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;
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_bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);
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if (!_infiniteTimeWindow) {
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var now = _timestampProvider.now();
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var last = 0;
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for (var i = 1; i < _buffer.length && _buffer[i] <= now; i += 2) {
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last = i;
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}
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last && _buffer.splice(0, last + 1);
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}
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};
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return ReplaySubject;
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}(Subject));
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export { ReplaySubject };
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//# sourceMappingURL=ReplaySubject.js.map
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