brusc/dist/brusc/container/InstanceProvider.js

IOC Container for Effective JS development

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.InstanceProvider = void 0;

var _utils = require("../common/utils");

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

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var InstanceProvider = /*#__PURE__*/function () {
  function InstanceProvider(_ref) {
    var key = _ref.key,
        provider = _ref.provider,
        _ref$isSingleton = _ref.isSingleton,
        isSingleton = _ref$isSingleton === void 0 ? true : _ref$isSingleton,
        _ref$isEager = _ref.isEager,
        isEager = _ref$isEager === void 0 ? false : _ref$isEager;

    _classCallCheck(this, InstanceProvider);

    this._key = key;
    this._provider = provider;
    this._isSingleton = isSingleton;
    this._isEager = isEager;

    this._guardKeyHasValue();

    this._guardProviderIsFunction();
  }

  _createClass(InstanceProvider, [{
    key: "provide",
    value: function provide() {
      var instance = this._provider();

      this._guardInstanceIsGenerated(instance);

      return instance;
    }
  }, {
    key: "key",
    get: function get() {
      return this._key;
    }
  }, {
    key: "isSingleton",
    get: function get() {
      return this._isSingleton;
    }
  }, {
    key: "isEager",
    get: function get() {
      return this._isEager;
    }
  }, {
    key: "_guardKeyHasValue",
    value: function _guardKeyHasValue() {
      if (!this._key) {
        throw new Error('Key has no value');
      }
    }
  }, {
    key: "_guardProviderIsFunction",
    value: function _guardProviderIsFunction() {
      if (typeof this._provider !== 'function') {
        throw new Error("Instance provider for [".concat((0, _utils.stringKey)(this._key), "] must be a function"));
      }
    }
  }, {
    key: "_guardInstanceIsGenerated",
    value: function _guardInstanceIsGenerated(instance) {
      if (!instance) {
        throw new Error("Instance provider for [".concat((0, _utils.stringKey)(this._key), "] did not generate an instance"));
      }
    }
  }]);

  return InstanceProvider;
}();

exports.InstanceProvider = InstanceProvider;