@connectv/core
Version:
agent-based reactive programming library for typescript/javascript
99 lines • 4 kB
JavaScript
;
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 __());
};
})();
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var rxjs_1 = require("rxjs");
var operators_1 = require("rxjs/operators");
var emission_1 = __importStar(require("../shared/emission"));
var pin_1 = require("./pin");
var pin_map_1 = require("./pin-map");
var _UNSET = {};
/**
*
* Represents [control](https://connective.dev/docs/control) pins.
*
*/
var Control = /** @class */ (function (_super) {
__extends(Control, _super);
function Control(val) {
if (val === void 0) { val = _UNSET; }
var _this = _super.call(this) || this;
_this.val = val;
return _this;
}
/**
*
* Resolves underlying observable, by
* [zipping](https://rxjs-dev.firebaseapp.com/api/index/function/zip)
* corresponding observables of inbound pins.
*
* If a `PinMap` is passed to the constructor, it will instead
* resolve to zip of all of the instantiated pins of that `PinMap`.
*
* If a value is passed to the constructor, and there are no inbound
* pins, it will resolve to `of(<passed value>)`.
*
* @param inbound
*
*/
Control.prototype.resolve = function (inbound) {
var _this = this;
if (this.val instanceof pin_map_1.PinMap) {
var _entries_1 = this.val.entries;
if (_entries_1.length == 0)
return rxjs_1.of(emission_1.default());
return rxjs_1.zip.apply(void 0, _entries_1.map(function (entry) { return entry[1].observable; })).pipe(operators_1.map(function (emissions) { return emission_1.Emission.from(emissions, _entries_1.reduce(function (_map, entry, index) {
_map[entry[0]] = emissions[index].value;
return _map;
}, {})); }));
}
else if (inbound.length == 0)
return rxjs_1.of(emission_1.default(this.val));
else {
var _zipped = rxjs_1.zip.apply(void 0, inbound.map(function (pin) { return pin.observable; }));
if (this.val !== _UNSET)
return _zipped.pipe(operators_1.map(function (emissions) { return emission_1.Emission.from(emissions, _this.val); }));
else
return _zipped.pipe(operators_1.map(function (emissions) { return emission_1.Emission.from(emissions); }));
}
;
};
return Control;
}(pin_1.Pin));
exports.Control = Control;
/**
*
* Creates a [control](https://connective.dev/docs/control) pin.
*
* @param val if provided, the control pin will emit the given value when
* all pins connected to it emit, otherwise it will emit the array concatenation
* of received values. If no pins are connected to it, then it will emit the value
* to any subscriber (or to any pin that this pin is connected to, when a subscription
* is called somwhere down the chain).
*
* If a `PinMap` is given as the value, then after resolution, the control will be
* connected to all "realised" pins of the given pinmap.
*
*/
function control(val) { return new Control(val); }
exports.control = control;
exports.default = control;
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