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node_modules/rxjs/_esm5/operators/buffer.js

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+/** PURE_IMPORTS_START .._OuterSubscriber,.._util_subscribeToResult PURE_IMPORTS_END */
+var __extends = (this && this.__extends) || function (d, b) {
+    for (var p in b)
+        if (b.hasOwnProperty(p))
+            d[p] = b[p];
+    function __() { this.constructor = d; }
+    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+};
+import { OuterSubscriber } from '../OuterSubscriber';
+import { subscribeToResult } from '../util/subscribeToResult';
+/**
+ * Buffers the source Observable values until `closingNotifier` emits.
+ *
+ * <span class="informal">Collects values from the past as an array, and emits
+ * that array only when another Observable emits.</span>
+ *
+ * <img src="./img/buffer.png" width="100%">
+ *
+ * Buffers the incoming Observable values until the given `closingNotifier`
+ * Observable emits a value, at which point it emits the buffer on the output
+ * Observable and starts a new buffer internally, awaiting the next time
+ * `closingNotifier` emits.
+ *
+ * @example <caption>On every click, emit array of most recent interval events</caption>
+ * var clicks = Rx.Observable.fromEvent(document, 'click');
+ * var interval = Rx.Observable.interval(1000);
+ * var buffered = interval.buffer(clicks);
+ * buffered.subscribe(x => console.log(x));
+ *
+ * @see {@link bufferCount}
+ * @see {@link bufferTime}
+ * @see {@link bufferToggle}
+ * @see {@link bufferWhen}
+ * @see {@link window}
+ *
+ * @param {Observable<any>} closingNotifier An Observable that signals the
+ * buffer to be emitted on the output Observable.
+ * @return {Observable<T[]>} An Observable of buffers, which are arrays of
+ * values.
+ * @method buffer
+ * @owner Observable
+ */
+export function buffer(closingNotifier) {
+    return function bufferOperatorFunction(source) {
+        return source.lift(new BufferOperator(closingNotifier));
+    };
+}
+var BufferOperator = /*@__PURE__*/ (/*@__PURE__*/ function () {
+    function BufferOperator(closingNotifier) {
+        this.closingNotifier = closingNotifier;
+    }
+    BufferOperator.prototype.call = function (subscriber, source) {
+        return source.subscribe(new BufferSubscriber(subscriber, this.closingNotifier));
+    };
+    return BufferOperator;
+}());
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @ignore
+ * @extends {Ignored}
+ */
+var BufferSubscriber = /*@__PURE__*/ (/*@__PURE__*/ function (_super) {
+    __extends(BufferSubscriber, _super);
+    function BufferSubscriber(destination, closingNotifier) {
+        _super.call(this, destination);
+        this.buffer = [];
+        this.add(subscribeToResult(this, closingNotifier));
+    }
+    BufferSubscriber.prototype._next = function (value) {
+        this.buffer.push(value);
+    };
+    BufferSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+        var buffer = this.buffer;
+        this.buffer = [];
+        this.destination.next(buffer);
+    };
+    return BufferSubscriber;
+}(OuterSubscriber));
+//# sourceMappingURL=buffer.js.map