134 lines
5.2 KiB
JavaScript
134 lines
5.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var isArray_1 = require("./util/isArray");
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var isObject_1 = require("./util/isObject");
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var isFunction_1 = require("./util/isFunction");
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var tryCatch_1 = require("./util/tryCatch");
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var errorObject_1 = require("./util/errorObject");
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var UnsubscriptionError_1 = require("./util/UnsubscriptionError");
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var Subscription = (function () {
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function Subscription(unsubscribe) {
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this.closed = false;
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this._parent = null;
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this._parents = null;
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this._subscriptions = null;
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if (unsubscribe) {
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this._unsubscribe = unsubscribe;
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}
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}
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Subscription.prototype.unsubscribe = function () {
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var hasErrors = false;
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var errors;
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if (this.closed) {
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return;
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}
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var _a = this, _parent = _a._parent, _parents = _a._parents, _unsubscribe = _a._unsubscribe, _subscriptions = _a._subscriptions;
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this.closed = true;
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this._parent = null;
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this._parents = null;
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this._subscriptions = null;
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var index = -1;
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var len = _parents ? _parents.length : 0;
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while (_parent) {
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_parent.remove(this);
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_parent = ++index < len && _parents[index] || null;
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}
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if (isFunction_1.isFunction(_unsubscribe)) {
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var trial = tryCatch_1.tryCatch(_unsubscribe).call(this);
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if (trial === errorObject_1.errorObject) {
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hasErrors = true;
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errors = errors || (errorObject_1.errorObject.e instanceof UnsubscriptionError_1.UnsubscriptionError ?
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flattenUnsubscriptionErrors(errorObject_1.errorObject.e.errors) : [errorObject_1.errorObject.e]);
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}
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}
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if (isArray_1.isArray(_subscriptions)) {
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index = -1;
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len = _subscriptions.length;
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while (++index < len) {
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var sub = _subscriptions[index];
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if (isObject_1.isObject(sub)) {
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var trial = tryCatch_1.tryCatch(sub.unsubscribe).call(sub);
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if (trial === errorObject_1.errorObject) {
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hasErrors = true;
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errors = errors || [];
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var err = errorObject_1.errorObject.e;
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if (err instanceof UnsubscriptionError_1.UnsubscriptionError) {
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errors = errors.concat(flattenUnsubscriptionErrors(err.errors));
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}
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else {
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errors.push(err);
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}
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}
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}
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}
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}
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if (hasErrors) {
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throw new UnsubscriptionError_1.UnsubscriptionError(errors);
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}
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};
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Subscription.prototype.add = function (teardown) {
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if (!teardown || (teardown === Subscription.EMPTY)) {
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return Subscription.EMPTY;
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}
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if (teardown === this) {
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return this;
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}
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var subscription = teardown;
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switch (typeof teardown) {
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case 'function':
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subscription = new Subscription(teardown);
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case 'object':
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if (subscription.closed || typeof subscription.unsubscribe !== 'function') {
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return subscription;
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}
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else if (this.closed) {
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subscription.unsubscribe();
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return subscription;
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}
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else if (typeof subscription._addParent !== 'function') {
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var tmp = subscription;
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subscription = new Subscription();
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subscription._subscriptions = [tmp];
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}
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break;
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default:
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throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');
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}
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var subscriptions = this._subscriptions || (this._subscriptions = []);
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subscriptions.push(subscription);
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subscription._addParent(this);
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return subscription;
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};
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Subscription.prototype.remove = function (subscription) {
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var subscriptions = this._subscriptions;
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if (subscriptions) {
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var subscriptionIndex = subscriptions.indexOf(subscription);
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if (subscriptionIndex !== -1) {
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subscriptions.splice(subscriptionIndex, 1);
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}
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}
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};
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Subscription.prototype._addParent = function (parent) {
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var _a = this, _parent = _a._parent, _parents = _a._parents;
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if (!_parent || _parent === parent) {
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this._parent = parent;
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}
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else if (!_parents) {
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this._parents = [parent];
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}
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else if (_parents.indexOf(parent) === -1) {
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_parents.push(parent);
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}
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};
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Subscription.EMPTY = (function (empty) {
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empty.closed = true;
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return empty;
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}(new Subscription()));
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return Subscription;
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}());
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exports.Subscription = Subscription;
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function flattenUnsubscriptionErrors(errors) {
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return errors.reduce(function (errs, err) { return errs.concat((err instanceof UnsubscriptionError_1.UnsubscriptionError) ? err.errors : err); }, []);
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}
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//# sourceMappingURL=Subscription.js.map
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