feat: initial commit

node_modules/rxjs/internal/operators/mergeMap.js

@@ -0,0 +1,109 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    }
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var map_1 = require("./map");
+var from_1 = require("../observable/from");
+var innerSubscribe_1 = require("../innerSubscribe");
+function mergeMap(project, resultSelector, concurrent) {
+    if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
+    if (typeof resultSelector === 'function') {
+        return function (source) { return source.pipe(mergeMap(function (a, i) { return from_1.from(project(a, i)).pipe(map_1.map(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent)); };
+    }
+    else if (typeof resultSelector === 'number') {
+        concurrent = resultSelector;
+    }
+    return function (source) { return source.lift(new MergeMapOperator(project, concurrent)); };
+}
+exports.mergeMap = mergeMap;
+var MergeMapOperator = (function () {
+    function MergeMapOperator(project, concurrent) {
+        if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
+        this.project = project;
+        this.concurrent = concurrent;
+    }
+    MergeMapOperator.prototype.call = function (observer, source) {
+        return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));
+    };
+    return MergeMapOperator;
+}());
+exports.MergeMapOperator = MergeMapOperator;
+var MergeMapSubscriber = (function (_super) {
+    __extends(MergeMapSubscriber, _super);
+    function MergeMapSubscriber(destination, project, concurrent) {
+        if (concurrent === void 0) { concurrent = Number.POSITIVE_INFINITY; }
+        var _this = _super.call(this, destination) || this;
+        _this.project = project;
+        _this.concurrent = concurrent;
+        _this.hasCompleted = false;
+        _this.buffer = [];
+        _this.active = 0;
+        _this.index = 0;
+        return _this;
+    }
+    MergeMapSubscriber.prototype._next = function (value) {
+        if (this.active < this.concurrent) {
+            this._tryNext(value);
+        }
+        else {
+            this.buffer.push(value);
+        }
+    };
+    MergeMapSubscriber.prototype._tryNext = function (value) {
+        var result;
+        var index = this.index++;
+        try {
+            result = this.project(value, index);
+        }
+        catch (err) {
+            this.destination.error(err);
+            return;
+        }
+        this.active++;
+        this._innerSub(result);
+    };
+    MergeMapSubscriber.prototype._innerSub = function (ish) {
+        var innerSubscriber = new innerSubscribe_1.SimpleInnerSubscriber(this);
+        var destination = this.destination;
+        destination.add(innerSubscriber);
+        var innerSubscription = innerSubscribe_1.innerSubscribe(ish, innerSubscriber);
+        if (innerSubscription !== innerSubscriber) {
+            destination.add(innerSubscription);
+        }
+    };
+    MergeMapSubscriber.prototype._complete = function () {
+        this.hasCompleted = true;
+        if (this.active === 0 && this.buffer.length === 0) {
+            this.destination.complete();
+        }
+        this.unsubscribe();
+    };
+    MergeMapSubscriber.prototype.notifyNext = function (innerValue) {
+        this.destination.next(innerValue);
+    };
+    MergeMapSubscriber.prototype.notifyComplete = function () {
+        var buffer = this.buffer;
+        this.active--;
+        if (buffer.length > 0) {
+            this._next(buffer.shift());
+        }
+        else if (this.active === 0 && this.hasCompleted) {
+            this.destination.complete();
+        }
+    };
+    return MergeMapSubscriber;
+}(innerSubscribe_1.SimpleOuterSubscriber));
+exports.MergeMapSubscriber = MergeMapSubscriber;
+exports.flatMap = mergeMap;
+//# sourceMappingURL=mergeMap.js.map