share.js
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"use strict";
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
to[j] = from[i];
return to;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.share = void 0;
var innerFrom_1 = require("../observable/innerFrom");
var Subject_1 = require("../Subject");
var Subscriber_1 = require("../Subscriber");
var lift_1 = require("../util/lift");
function share(options) {
if (options === void 0) { options = {}; }
var _a = options.connector, connector = _a === void 0 ? function () { return new Subject_1.Subject(); } : _a, _b = options.resetOnError, resetOnError = _b === void 0 ? true : _b, _c = options.resetOnComplete, resetOnComplete = _c === void 0 ? true : _c, _d = options.resetOnRefCountZero, resetOnRefCountZero = _d === void 0 ? true : _d;
return function (wrapperSource) {
var connection;
var resetConnection;
var subject;
var refCount = 0;
var hasCompleted = false;
var hasErrored = false;
var cancelReset = function () {
resetConnection === null || resetConnection === void 0 ? void 0 : resetConnection.unsubscribe();
resetConnection = undefined;
};
var reset = function () {
cancelReset();
connection = subject = undefined;
hasCompleted = hasErrored = false;
};
var resetAndUnsubscribe = function () {
var conn = connection;
reset();
conn === null || conn === void 0 ? void 0 : conn.unsubscribe();
};
return lift_1.operate(function (source, subscriber) {
refCount++;
if (!hasErrored && !hasCompleted) {
cancelReset();
}
var dest = (subject = subject !== null && subject !== void 0 ? subject : connector());
subscriber.add(function () {
refCount--;
if (refCount === 0 && !hasErrored && !hasCompleted) {
resetConnection = handleReset(resetAndUnsubscribe, resetOnRefCountZero);
}
});
dest.subscribe(subscriber);
if (!connection &&
refCount > 0) {
connection = new Subscriber_1.SafeSubscriber({
next: function (value) { return dest.next(value); },
error: function (err) {
hasErrored = true;
cancelReset();
resetConnection = handleReset(reset, resetOnError, err);
dest.error(err);
},
complete: function () {
hasCompleted = true;
cancelReset();
resetConnection = handleReset(reset, resetOnComplete);
dest.complete();
},
});
innerFrom_1.innerFrom(source).subscribe(connection);
}
})(wrapperSource);
};
}
exports.share = share;
function handleReset(reset, on) {
var args = [];
for (var _i = 2; _i < arguments.length; _i++) {
args[_i - 2] = arguments[_i];
}
if (on === true) {
reset();
return;
}
if (on === false) {
return;
}
var onSubscriber = new Subscriber_1.SafeSubscriber({
next: function () {
onSubscriber.unsubscribe();
reset();
},
});
return innerFrom_1.innerFrom(on.apply(void 0, __spreadArray([], __read(args)))).subscribe(onSubscriber);
}
//# sourceMappingURL=share.js.map