om/node_modules/rxjs/_esm5/internal/operators/tap.js

/** PURE_IMPORTS_START tslib,_Subscriber,_util_noop,_util_isFunction PURE_IMPORTS_END */
import * as tslib_1 from "tslib";
import { Subscriber } from '../Subscriber';
import { noop } from '../util/noop';
import { isFunction } from '../util/isFunction';
export function tap(nextOrObserver, error, complete) {
    return function tapOperatorFunction(source) {
        return source.lift(new DoOperator(nextOrObserver, error, complete));
    };
}
var DoOperator = /*@__PURE__*/ (function () {
    function DoOperator(nextOrObserver, error, complete) {
        this.nextOrObserver = nextOrObserver;
        this.error = error;
        this.complete = complete;
    }
    DoOperator.prototype.call = function (subscriber, source) {
        return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));
    };
    return DoOperator;
}());
var TapSubscriber = /*@__PURE__*/ (function (_super) {
    tslib_1.__extends(TapSubscriber, _super);
    function TapSubscriber(destination, observerOrNext, error, complete) {
        var _this = _super.call(this, destination) || this;
        _this._tapNext = noop;
        _this._tapError = noop;
        _this._tapComplete = noop;
        _this._tapError = error || noop;
        _this._tapComplete = complete || noop;
        if (isFunction(observerOrNext)) {
            _this._context = _this;
            _this._tapNext = observerOrNext;
        }
        else if (observerOrNext) {
            _this._context = observerOrNext;
            _this._tapNext = observerOrNext.next || noop;
            _this._tapError = observerOrNext.error || noop;
            _this._tapComplete = observerOrNext.complete || noop;
        }
        return _this;
    }
    TapSubscriber.prototype._next = function (value) {
        try {
            this._tapNext.call(this._context, value);
        }
        catch (err) {
            this.destination.error(err);
            return;
        }
        this.destination.next(value);
    };
    TapSubscriber.prototype._error = function (err) {
        try {
            this._tapError.call(this._context, err);
        }
        catch (err) {
            this.destination.error(err);
            return;
        }
        this.destination.error(err);
    };
    TapSubscriber.prototype._complete = function () {
        try {
            this._tapComplete.call(this._context);
        }
        catch (err) {
            this.destination.error(err);
            return;
        }
        return this.destination.complete();
    };
    return TapSubscriber;
}(Subscriber));
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