parse-js/dist/transformers/map.js

Utility library for object structure conversion.

'use strict';

var _transform = require('../lib/transform');

var _isArray = require('lodash/isArray');

function MapTransformer(callback, parse) {
  if (!(this instanceof MapTransformer)) {
    return this.transform(new MapTransformer(callback, this.constructor));
  }

  this._parse = parse || require('../index');
  this._callback = callback;
  this._cache = {};
}

MapTransformer.prototype._createParse = function (key) {
  var parse = this._parse;
  var cache = this._cache;
  if (!(key in cache)) cache[key] = this._callback(parse());
  return cache[key];
};

MapTransformer.prototype.parse = function (source, instance, root) {
  var _this = this;

  var accumulator = _isArray(source) ? [] : {};
  return _transform(source, function (result, value, key) {
    result[key] = _this._createParse(key).parse(value, instance, root);
  }, accumulator);
};

MapTransformer.prototype.reverse = function (source, instance, root) {
  var _this2 = this;

  var isArray = _isArray(source);

  var accumulator = isArray ? [] : {};
  return _transform(source, function (result, value, key) {
    result[key] = _this2._createParse(key).reverse(value, instance, root);
  }, accumulator);
};

module.exports = MapTransformer;