/**
* cnodes
*
* A representation-agnostic library to define and execute nodes based processes
* License: MIT
* Author: Marco Jacovone
* Year: 2020-2021
*/
import { Node } from "../core/node.mjs";
import {
InputSocket,
NextSocket,
PrevSocket,
OutputSocket,
} from "../core/socket.mjs";
import { Types } from "../core/type.mjs";
/**
* This class implements a node to get a variable's value
* in the program's global space. This node has a functional
* counterpart naamed FGetvar
*/
export class Getvar extends Node {
// Provide a node instance
static instance = () => new Getvar();
/**
* Construct a new Getvar node
*/
constructor() {
super("Getvar");
this.inputs = [new InputSocket("Name", this, Types.STRING, "")];
this.outputs = [new OutputSocket("Val", this, Types.ANY, "")];
this.nexts = [new NextSocket("Out", this)];
this.prev = new PrevSocket("In", this);
}
/**
* Clone this node
* @param {Function} factory The factory class function
*/
clone(factory = Getvar.instance) {
return super.clone(factory);
}
/**
* The process function
*/
async process() {
await this.evaluateInputs();
let varName = this.input("Name").value;
this.output("Val").value = this.program.vars.get(varName);
return this.getFlowResult(this.next("Out"));
}
}