"use strict";

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

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 _index = require("./index.js");

var _generator = require("../utils/generator.js");

var _invariant = require("../invariant.js");

var _invariant2 = _interopRequireDefault(_invariant);

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

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; } /**
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * Copyright (c) 2017-present, Facebook, Inc.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * All rights reserved.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                *
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * This source code is licensed under the BSD-style license found in the
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * LICENSE file in the root directory of this source tree. An additional grant
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                * of patent rights can be found in the PATENTS file in the same directory.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                */

/* Abstract base class for all function objects */
var FunctionValue = function (_ObjectValue) {
  _inherits(FunctionValue, _ObjectValue);

  function FunctionValue(realm, intrinsicName) {
    _classCallCheck(this, FunctionValue);

    var _this = _possibleConstructorReturn(this, (FunctionValue.__proto__ || Object.getPrototypeOf(FunctionValue)).call(this, realm, realm.intrinsics.FunctionPrototype, intrinsicName));

    _this.parent = realm.generator;
    return _this;
  }

  // Indicates whether this function has been referenced by a __residual call.
  // If true, the serializer will check that the function does not access any
  // identifiers defined outside of the local scope.


  // Allows for residual function with inference of parameters


  _createClass(FunctionValue, [{
    key: "getName",
    value: function getName() {
      throw new Error("Abstract method");
    }
  }, {
    key: "getKind",
    value: function getKind() {
      return "Function";
    }
  }, {
    key: "getLength",
    value: function getLength() {
      var binding = this.properties.get("length");
      (0, _invariant2.default)(binding);
      var desc = binding.descriptor;
      (0, _invariant2.default)(desc);
      var value = desc.value;
      if (!(value instanceof _index.NumberValue)) return undefined;
      return value.value;
    }
  }, {
    key: "getParent",
    value: function getParent() {
      return this.parent;
    }
  }, {
    key: "hasDefaultLength",
    value: function hasDefaultLength() {
      (0, _invariant2.default)(false, "abstract method; please override");
    }
  }]);

  return FunctionValue;
}(_index.ObjectValue);

exports.default = FunctionValue;
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