fiql-query-builder/lib/tree/group-node.js

This module provides the utility to generate valid FIQL query strings by using a JSON objects or the custom classes provided.

'use strict';

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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _exception = require('../exception');

var _ = require('./');

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Wraps the child expresison in parentheses to
 * provide higher precendence in evaulation.
 */
var GroupNode = exports.GroupNode = function () {
  /**
   * Initialise new GroupNode
   * @param {ExpNode} exp
   */
  function GroupNode(exp) {
    _classCallCheck(this, GroupNode);

    this.exp = exp;
  }

  /**
   * Wrap and build child
   */


  _createClass(GroupNode, [{
    key: 'build',
    value: function build() {
      if (!(this.exp instanceof _.ExpNode)) {
        throw new _exception.InvalidGroupChildError('Only boolean expressions can be wrapped in parentheses.');
      }
      return '(' + this.exp.build() + ')';
    }
  }]);

  return GroupNode;
}();