javascript-decorators/lib/@after.js

Decorator Helpers

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports._after = undefined;

var _validationHelpers = require('./validationHelpers');

var _helpers = require('./helpers');

/**
 * Base decorator function for immutability
 *
 * @method _basefunc
 *
 *
 * @return { function }  decorator function
 */
/**
* @after decorator
*
* @author  Avraam Mavridis      <avr.mav@gmail.com>
*
*/
var _after = exports._after = function after(afterFunc) {
  if (!(0, _validationHelpers._isFunction)(afterFunc)) {
    throw Error('a function should be passed to the @after decorator');
  }
  return function afterTarget(target, key, descriptor) {
    var func = descriptor.value;
    (0, _helpers.descriptorIsFunc)(key, func);
    descriptor.value = function descriptorValue() {
      for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
        args[_key] = arguments[_key];
      }

      var res = func.apply(this, args);
      var afterFuncRes = afterFunc();
      if ((0, _validationHelpers._isPromise)(afterFuncRes)) {
        return afterFuncRes.then(function () {
          return res;
        });
      }

      return res;
    };
    return descriptor;
  };
};