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1 lines
2.1 KiB
1 lines
2.1 KiB
{"ast":null,"code":"import { Subscription } from '../Subscription';\nimport { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';\nexport function bufferWhen(closingSelector) {\n return function (source) {\n return source.lift(new BufferWhenOperator(closingSelector));\n };\n}\n\nclass BufferWhenOperator {\n constructor(closingSelector) {\n this.closingSelector = closingSelector;\n }\n\n call(subscriber, source) {\n return source.subscribe(new BufferWhenSubscriber(subscriber, this.closingSelector));\n }\n\n}\n\nclass BufferWhenSubscriber extends SimpleOuterSubscriber {\n constructor(destination, closingSelector) {\n super(destination);\n this.closingSelector = closingSelector;\n this.subscribing = false;\n this.openBuffer();\n }\n\n _next(value) {\n this.buffer.push(value);\n }\n\n _complete() {\n const buffer = this.buffer;\n\n if (buffer) {\n this.destination.next(buffer);\n }\n\n super._complete();\n }\n\n _unsubscribe() {\n this.buffer = undefined;\n this.subscribing = false;\n }\n\n notifyNext() {\n this.openBuffer();\n }\n\n notifyComplete() {\n if (this.subscribing) {\n this.complete();\n } else {\n this.openBuffer();\n }\n }\n\n openBuffer() {\n let {\n closingSubscription\n } = this;\n\n if (closingSubscription) {\n this.remove(closingSubscription);\n closingSubscription.unsubscribe();\n }\n\n const buffer = this.buffer;\n\n if (this.buffer) {\n this.destination.next(buffer);\n }\n\n this.buffer = [];\n let closingNotifier;\n\n try {\n const {\n closingSelector\n } = this;\n closingNotifier = closingSelector();\n } catch (err) {\n return this.error(err);\n }\n\n closingSubscription = new Subscription();\n this.closingSubscription = closingSubscription;\n this.add(closingSubscription);\n this.subscribing = true;\n closingSubscription.add(innerSubscribe(closingNotifier, new SimpleInnerSubscriber(this)));\n this.subscribing = false;\n }\n\n} //# sourceMappingURL=bufferWhen.js.map","map":null,"metadata":{},"sourceType":"module"}
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