text: 'use strict';
  
  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; }; }();
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  
  var _require = require('../expr'),
      Expr = _require.Expr;
  
  var LogicOp = function (_Expr) {
    _inherits(LogicOp, _Expr);
  
    function LogicOp(op, left, right) {
      _classCallCheck(this, LogicOp);
  
      var _this = _possibleConstructorReturn(this, (LogicOp.__proto__ || Object.getPrototypeOf(LogicOp)).call(this, op));
  
      _this.logic = op;
      _this.condition = right;
      if (typeof right === 'undefined') {
        _this.condition = left;
      } else {
        _this.left = left;
      }
      return _this;
    }
  
    _createClass(LogicOp, [{
      key: 'toSQL',
      value: function toSQL() {
        if (!this.left) {
          return this.logic + ' ' + this.condition.toSQL();
        }
        return '(' + this.left.toSQL() + ' ' + this.logic + ' ' + this.condition.toSQL() + ')';
      }
    }]);
  
    return LogicOp;
  }(Expr);
  
  module.exports = LogicOp;