feat: initial commit

node_modules/rxjs/_esm2015/internal/Subscriber.js

@@ -0,0 +1,222 @@
+import { isFunction } from './util/isFunction';
+import { empty as emptyObserver } from './Observer';
+import { Subscription } from './Subscription';
+import { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';
+import { config } from './config';
+import { hostReportError } from './util/hostReportError';
+export class Subscriber extends Subscription {
+    constructor(destinationOrNext, error, complete) {
+        super();
+        this.syncErrorValue = null;
+        this.syncErrorThrown = false;
+        this.syncErrorThrowable = false;
+        this.isStopped = false;
+        switch (arguments.length) {
+            case 0:
+                this.destination = emptyObserver;
+                break;
+            case 1:
+                if (!destinationOrNext) {
+                    this.destination = emptyObserver;
+                    break;
+                }
+                if (typeof destinationOrNext === 'object') {
+                    if (destinationOrNext instanceof Subscriber) {
+                        this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;
+                        this.destination = destinationOrNext;
+                        destinationOrNext.add(this);
+                    }
+                    else {
+                        this.syncErrorThrowable = true;
+                        this.destination = new SafeSubscriber(this, destinationOrNext);
+                    }
+                    break;
+                }
+            default:
+                this.syncErrorThrowable = true;
+                this.destination = new SafeSubscriber(this, destinationOrNext, error, complete);
+                break;
+        }
+    }
+    [rxSubscriberSymbol]() { return this; }
+    static create(next, error, complete) {
+        const subscriber = new Subscriber(next, error, complete);
+        subscriber.syncErrorThrowable = false;
+        return subscriber;
+    }
+    next(value) {
+        if (!this.isStopped) {
+            this._next(value);
+        }
+    }
+    error(err) {
+        if (!this.isStopped) {
+            this.isStopped = true;
+            this._error(err);
+        }
+    }
+    complete() {
+        if (!this.isStopped) {
+            this.isStopped = true;
+            this._complete();
+        }
+    }
+    unsubscribe() {
+        if (this.closed) {
+            return;
+        }
+        this.isStopped = true;
+        super.unsubscribe();
+    }
+    _next(value) {
+        this.destination.next(value);
+    }
+    _error(err) {
+        this.destination.error(err);
+        this.unsubscribe();
+    }
+    _complete() {
+        this.destination.complete();
+        this.unsubscribe();
+    }
+    _unsubscribeAndRecycle() {
+        const { _parentOrParents } = this;
+        this._parentOrParents = null;
+        this.unsubscribe();
+        this.closed = false;
+        this.isStopped = false;
+        this._parentOrParents = _parentOrParents;
+        return this;
+    }
+}
+export class SafeSubscriber extends Subscriber {
+    constructor(_parentSubscriber, observerOrNext, error, complete) {
+        super();
+        this._parentSubscriber = _parentSubscriber;
+        let next;
+        let context = this;
+        if (isFunction(observerOrNext)) {
+            next = observerOrNext;
+        }
+        else if (observerOrNext) {
+            next = observerOrNext.next;
+            error = observerOrNext.error;
+            complete = observerOrNext.complete;
+            if (observerOrNext !== emptyObserver) {
+                context = Object.create(observerOrNext);
+                if (isFunction(context.unsubscribe)) {
+                    this.add(context.unsubscribe.bind(context));
+                }
+                context.unsubscribe = this.unsubscribe.bind(this);
+            }
+        }
+        this._context = context;
+        this._next = next;
+        this._error = error;
+        this._complete = complete;
+    }
+    next(value) {
+        if (!this.isStopped && this._next) {
+            const { _parentSubscriber } = this;
+            if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
+                this.__tryOrUnsub(this._next, value);
+            }
+            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {
+                this.unsubscribe();
+            }
+        }
+    }
+    error(err) {
+        if (!this.isStopped) {
+            const { _parentSubscriber } = this;
+            const { useDeprecatedSynchronousErrorHandling } = config;
+            if (this._error) {
+                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
+                    this.__tryOrUnsub(this._error, err);
+                    this.unsubscribe();
+                }
+                else {
+                    this.__tryOrSetError(_parentSubscriber, this._error, err);
+                    this.unsubscribe();
+                }
+            }
+            else if (!_parentSubscriber.syncErrorThrowable) {
+                this.unsubscribe();
+                if (useDeprecatedSynchronousErrorHandling) {
+                    throw err;
+                }
+                hostReportError(err);
+            }
+            else {
+                if (useDeprecatedSynchronousErrorHandling) {
+                    _parentSubscriber.syncErrorValue = err;
+                    _parentSubscriber.syncErrorThrown = true;
+                }
+                else {
+                    hostReportError(err);
+                }
+                this.unsubscribe();
+            }
+        }
+    }
+    complete() {
+        if (!this.isStopped) {
+            const { _parentSubscriber } = this;
+            if (this._complete) {
+                const wrappedComplete = () => this._complete.call(this._context);
+                if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
+                    this.__tryOrUnsub(wrappedComplete);
+                    this.unsubscribe();
+                }
+                else {
+                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);
+                    this.unsubscribe();
+                }
+            }
+            else {
+                this.unsubscribe();
+            }
+        }
+    }
+    __tryOrUnsub(fn, value) {
+        try {
+            fn.call(this._context, value);
+        }
+        catch (err) {
+            this.unsubscribe();
+            if (config.useDeprecatedSynchronousErrorHandling) {
+                throw err;
+            }
+            else {
+                hostReportError(err);
+            }
+        }
+    }
+    __tryOrSetError(parent, fn, value) {
+        if (!config.useDeprecatedSynchronousErrorHandling) {
+            throw new Error('bad call');
+        }
+        try {
+            fn.call(this._context, value);
+        }
+        catch (err) {
+            if (config.useDeprecatedSynchronousErrorHandling) {
+                parent.syncErrorValue = err;
+                parent.syncErrorThrown = true;
+                return true;
+            }
+            else {
+                hostReportError(err);
+                return true;
+            }
+        }
+        return false;
+    }
+    _unsubscribe() {
+        const { _parentSubscriber } = this;
+        this._context = null;
+        this._parentSubscriber = null;
+        _parentSubscriber.unsubscribe();
+    }
+}
+//# sourceMappingURL=Subscriber.js.map