dmn-eval-js-es5/utils/built-in-functions/date-time-functions/add-properties.js

Evaluation of DMN 1.1 decision tables, limited to S-FEEL (Simple Friendly Enough Expression Language), es5 browser compatible

'use strict';

const ProxyPolyfill = require('./proxy-polyfill');


/*
*
*  ©2016-2017 EdgeVerve Systems Limited (a fully owned Infosys subsidiary),
*  Bangalore, India. All Rights Reserved.
*
*/

var addProperties = function addProperties(obj, props) {
  var child = Object.create(obj);
  Object.keys(props).forEach(function (key) {
    var value = props[key];
    if (typeof value === 'function') {
      Object.defineProperty(child, key, { get: function get() {
          // eslint-disable-line object-shorthand
          var proto = Object.getPrototypeOf(this);
          return value.call(proto);
        }
      });
    } else {
      Object.defineProperty(child, key, { get: function get() {
          // eslint-disable-line object-shorthand
          var proto = Object.getPrototypeOf(this);
          return key !== 'type' && proto[value] ? proto[value]() : value;
        }
      });
    }
  });

  var proxy = new ProxyPolyfill(child, {
    get: function get(target, propKey) {
      var proto = Object.getPrototypeOf(target);
      var protoPropValue = proto[propKey];
      if (!target.hasOwnProperty(propKey) && typeof protoPropValue === 'function') {
        return function () {
          for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key];
          }

          return protoPropValue.apply(proto, args);
        };
      }
      return target[propKey];
    }
  });

  return proxy;
};

module.exports = addProperties;