noflo/lib/ProcessContext.js

Flow-Based Programming environment for JavaScript

"use strict";
//     NoFlo - Flow-Based Programming for JavaScript
//     (c) 2013-2020 Flowhub UG
//     (c) 2011-2012 Henri Bergius, Nemein
//     NoFlo may be freely distributed under the MIT license
Object.defineProperty(exports, "__esModule", { value: true });
class ProcessContext {
    /**
     * @param {import("./IP").default} ip - IP for this processing context
     * @param {import("./Component").Component} nodeInstance - Component being run
     * @param {import("./InPort").default} port - InPort that triggered this context
     * @param {Object<string, any>} result
     */
    constructor(ip, nodeInstance, port, result) {
        this.ip = ip;
        this.nodeInstance = nodeInstance;
        this.port = port;
        this.result = result;
        this.scope = this.ip.scope;
        this.activated = false;
        this.deactivated = false;
    }
    activate() {
        // Push a new result value if previous has been sent already
        /* eslint-disable no-underscore-dangle */
        if (this.result.__resolved || (this.nodeInstance.outputQ.indexOf(this.result) === -1)) {
            this.result = {};
        }
        this.nodeInstance.activate(this);
    }
    deactivate() {
        if (!this.result.__resolved) {
            this.result.__resolved = true;
        }
        this.nodeInstance.deactivate(this);
    }
}
exports.default = ProcessContext;