mutants-appfx/dist/expression/ExprExecutor.js

appfx module

'use strict';

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

var _assign = require('babel-runtime/core-js/object/assign');

var _assign2 = _interopRequireDefault(_assign);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _ExprListener2 = require('./ExprListener');

var _ExprException = require('./ExprException');

var _ExprException2 = _interopRequireDefault(_ExprException);

var _DateUtil = require('./DateUtil');

var _DateUtil2 = _interopRequireDefault(_DateUtil);

var _AggregatesUtil = require('./AggregatesUtil');

var AggregatesUtil = _interopRequireWildcard(_AggregatesUtil);

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ExprExecutor = function (_ExprListener) {
  (0, _inherits3.default)(ExprExecutor, _ExprListener);

  function ExprExecutor(scope) {
    (0, _classCallCheck3.default)(this, ExprExecutor);

    var _this = (0, _possibleConstructorReturn3.default)(this, (ExprExecutor.__proto__ || (0, _getPrototypeOf2.default)(ExprExecutor)).call(this));

    _this.scope = scope || {};
    return _this;
  }

  (0, _createClass3.default)(ExprExecutor, [{
    key: 'exitExec',
    value: function exitExec(ctx) {
      this.result = ctx.getChild(0).value;
    }
    // singleExpression ( ',' singleExpression )*

  }, {
    key: 'exitExpressionSequence',
    value: function exitExpressionSequence(ctx) {
      var value = [ctx.getChild(0).value];
      for (var i = 2, l = ctx.getChildCount(); i < l; i += 2) {
        value.push(ctx.getChild(i).value);
      }
      ctx.value = value;
    }
    // '=' CONST*

  }, {
    key: 'exitConstStringExpression',
    value: function exitConstStringExpression(ctx) {
      ctx.value = ctx.getChild(1).getText();
    }
    // singleExpression '.' ID '(' expressionSequence ')'

  }, {
    key: 'exitFunctionInvokeExpression',
    value: function exitFunctionInvokeExpression(ctx) {
      ctx.value = ctx.getChild(0).value[ctx.getChild(2).getText()].apply(ctx.getChild(0).value, ctx.getChild(4).value);
    }
    // singleExpression '[' expressionSequence ']'

  }, {
    key: 'exitMemberIndexExpression',
    value: function exitMemberIndexExpression(ctx) {
      ctx.value = ctx.getChild(2).value.reduce(function (v, index) {
        return v[index];
      }, ctx.getChild(0).value);
    }
    // singleExpression '.' ID

  }, {
    key: 'exitMemberDotExpression',
    value: function exitMemberDotExpression(ctx) {
      if (!ctx.getChild(0).value) {
        return undefined;
      }
      ctx.value = ctx.getChild(0).value[ctx.getChild(2).getText()];
    }
    // (  '~' | '!') singleExpression

  }, {
    key: 'exitUnaryExpression',
    value: function exitUnaryExpression(ctx) {
      var oper = ctx.getChild(0).getText();
      if (oper === '~') {
        ctx.value = ~ctx.getChild(1).value;
      } else if (oper === '!') {
        ctx.value = !ctx.getChild(1).value;
      } else {
        throw new _ExprException2.default('UnaryExpression operator ' + oper + ' not support');
      }
    }
    /*
    '*'    | '/'  | '%' |  '+' | '-'
    | '<<' | '>>' | '>>>'
    | '<' | '>' | '<=' | '>='
    | 'in'
    | '==' | '!='  | '==='  | '!=='
    | '&' | '^' | '|'
    | '&&' '||'
    */

  }, {
    key: 'exitBinaryExpression',
    value: function exitBinaryExpression(ctx) {
      var a = ctx.getChild(0).value;
      var b = ctx.getChild(2).value;
      var oper = ctx.getChild(1).getText();
      if (oper === 'in') {
        ctx.value = a in b;
      } else if (oper === '*') {
        ctx.value = a * b;
      } else if (oper === '/') {
        ctx.value = a / b;
      } else if (oper === '%') {
        ctx.value = a % b;
      } else if (oper === '+') {
        ctx.value = a + b;
      } else if (oper === '-') {
        ctx.value = a - b;
      } else if (oper === '<<') {
        ctx.value = a << b;
      } else if (oper === '>>') {
        ctx.value = a >> b;
      } else if (oper === '>>>') {
        ctx.value = a >>> b;
      } else if (oper === '<') {
        ctx.value = a < b;
      } else if (oper === '>') {
        ctx.value = a > b;
      } else if (oper === '<=') {
        ctx.value = a <= b;
      } else if (oper === '>=') {
        ctx.value = a >= b;
      } else if (oper === '==') {
        ctx.value = a == b;
      } else if (oper === '!=') {
        ctx.value = a != b;
      } else if (oper === '===') {
        ctx.value = a === b;
      } else if (oper === '!==') {
        ctx.value = a !== b;
      } else if (oper === '&') {
        ctx.value = a & b;
      } else if (oper === '^') {
        ctx.value = a ^ b;
      } else if (oper === '|') {
        ctx.value = a | b;
      } else if (oper === '&&') {
        ctx.value = a && b;
      } else if (oper === '||') {
        ctx.value = a || b;
      } else {
        throw new _ExprException2.default('BinaryExpression operator ' + oper + ' not support');
      }
    }
    // singleExpression '?' singleExpression ':' singleExpression

  }, {
    key: 'exitTernaryExpression',
    value: function exitTernaryExpression(ctx) {
      var condition = ctx.getChild(0);
      var success = ctx.getChild(2);
      var fail = ctx.getChild(4);
      if (condition.value) {
        ctx.value = success.value;
      } else {
        ctx.value = fail.value;
      }
    }
  }, {
    key: 'exitInternalExpression',
    value: function exitInternalExpression(ctx) {
      var internalObj = ctx.getText();
      if (internalObj === 'now') {
        ctx.value = new Date();
      } else if (internalObj === 'Date') {
        ctx.value = _DateUtil2.default;
      } else if (internalObj === 'Math') {
        ctx.value = Math;
      } else if (internalObj === 'Aggs') {
        ctx.value = AggregatesUtil;
      } else {
        throw new _ExprException2.default('InternalExpression ' + internalObj + ' not support');
      }
    }
    // value

  }, {
    key: 'exitLiteralExpression',
    value: function exitLiteralExpression(ctx) {
      // value左右可以有空格
      ctx.value = new Function('return ' + ctx.getText().trim())();
    }
    // VARID

  }, {
    key: 'exitIdentifierExpression',
    value: function exitIdentifierExpression(ctx) {
      ctx.value = this.scope[ctx.getText().substr(1)];
    }
    // '(' expressionSequence ')'

  }, {
    key: 'exitParenthesizedExpression',
    value: function exitParenthesizedExpression(ctx) {
      ctx.value = ctx.getChild(1).value;
    }

    // objectLiteral

  }, {
    key: 'exitObjectLiteralExpression',
    value: function exitObjectLiteralExpression(ctx) {
      ctx.value = ctx.getChild(0).value;
    }

    // '{' (propertyAssignment (',' propertyAssignment)*)? ','? '}'

  }, {
    key: 'exitObjectPropertyAssignmentExpression',
    value: function exitObjectPropertyAssignmentExpression(ctx) {
      var ps = [];
      for (var i = 1, l = ctx.getChildCount() - 1; i < l; i += 2) {
        ps.push(ctx.getChild(i).value);
      }
      ctx.value = _assign2.default.apply(Object, [{}].concat(ps));
    }

    // ID (':' |'=') singleExpression

  }, {
    key: 'exitPropertyExpressionAssignment',
    value: function exitPropertyExpressionAssignment(ctx) {
      ctx.value = ctx.value || {};
      ctx.value[ctx.getChild(0).getText()] = ctx.getChild(2).value;
    }

    // '[' singleExpression ']' ':' singleExpression

  }, {
    key: 'exitComputedPropertyExpressionAssignment',
    value: function exitComputedPropertyExpressionAssignment(ctx) {
      ctx.value = ctx.value || {};
      ctx.value[ctx.getChild(1).value] = ctx.getChild(4).value;
    }
  }, {
    key: 'exitConstString',
    value: function exitConstString(ctx) {
      ctx.value = ctx.getText();
    }
  }]);
  return ExprExecutor;
}(_ExprListener2.ExprListener);

exports.default = ExprExecutor;
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