1 line
2.6 KiB
JSON
1 line
2.6 KiB
JSON
{"ast":null,"code":"import { innerFrom } from '../observable/innerFrom';\nimport { Subject } from '../Subject';\nimport { SafeSubscriber } from '../Subscriber';\nimport { operate } from '../util/lift';\nexport function share(options = {}) {\n const {\n connector = () => new Subject(),\n resetOnError = true,\n resetOnComplete = true,\n resetOnRefCountZero = true\n } = options;\n return wrapperSource => {\n let connection;\n let resetConnection;\n let subject;\n let refCount = 0;\n let hasCompleted = false;\n let hasErrored = false;\n const cancelReset = () => {\n resetConnection === null || resetConnection === void 0 ? void 0 : resetConnection.unsubscribe();\n resetConnection = undefined;\n };\n const reset = () => {\n cancelReset();\n connection = subject = undefined;\n hasCompleted = hasErrored = false;\n };\n const resetAndUnsubscribe = () => {\n const conn = connection;\n reset();\n conn === null || conn === void 0 ? void 0 : conn.unsubscribe();\n };\n return operate((source, subscriber) => {\n refCount++;\n if (!hasErrored && !hasCompleted) {\n cancelReset();\n }\n const dest = subject = subject !== null && subject !== void 0 ? subject : connector();\n subscriber.add(() => {\n refCount--;\n if (refCount === 0 && !hasErrored && !hasCompleted) {\n resetConnection = handleReset(resetAndUnsubscribe, resetOnRefCountZero);\n }\n });\n dest.subscribe(subscriber);\n if (!connection && refCount > 0) {\n connection = new SafeSubscriber({\n next: value => dest.next(value),\n error: err => {\n hasErrored = true;\n cancelReset();\n resetConnection = handleReset(reset, resetOnError, err);\n dest.error(err);\n },\n complete: () => {\n hasCompleted = true;\n cancelReset();\n resetConnection = handleReset(reset, resetOnComplete);\n dest.complete();\n }\n });\n innerFrom(source).subscribe(connection);\n }\n })(wrapperSource);\n };\n}\nfunction handleReset(reset, on, ...args) {\n if (on === true) {\n reset();\n return;\n }\n if (on === false) {\n return;\n }\n const onSubscriber = new SafeSubscriber({\n next: () => {\n onSubscriber.unsubscribe();\n reset();\n }\n });\n return innerFrom(on(...args)).subscribe(onSubscriber);\n}\n//# sourceMappingURL=share.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]} |