react-fix-binds/lib/index.js

Fix React autobind using class components

"use strict";

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

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

exports.default = fixBind;
var BINDS = Symbol();

function fixBind(target, property, descriptor) {
  if (!property && !descriptor && target.constructor !== Object) return fixBindInstance(target);
  return fixBindMaybeCalledDecorator(target, property, descriptor);
}

function fixBindInstance(target) {
  var klass = target.constructor;

  if (!klass[BINDS]) return;
  klass[BINDS].forEach(function (bind) {
    delete target[bind.property];
  });
}

function fixBindMaybeCalledDecorator(options, property, descriptor) {
  if (!property && !descriptor) return function (target, property, descriptor) {
    return fixBindDecorator(target, property, descriptor, options);
  };
  return fixBindDecorator(options, property, descriptor, {});
}

function fixBindDecorator(target, property, descriptor, options) {
  var klass = target.constructor;

  if (!klass[BINDS]) {
    klass[BINDS] = [];
  }

  klass[BINDS].push({
    property: property,
    options: options
  });

  if (options.autobind) {
    var _ret = function () {
      var _ref = descriptor || {},
          enumerable = _ref.enumerable,
          _ref$configurable = _ref.configurable,
          configurable = _ref$configurable === undefined ? true : _ref$configurable,
          _ref$writable = _ref.writable,
          writable = _ref$writable === undefined ? true : _ref$writable;

      var method = target[property];

      return {
        v: {
          enumerable: enumerable,
          configurable: true,
          get: function get() {
            var boundMethod = method.bind(this);
            Object.defineProperty({ enumerable: enumerable, configurable: configurable, value: boundMethod });
            return boundMethod;
          }
        }
      };
    }();

    if ((typeof _ret === "undefined" ? "undefined" : _typeof(_ret)) === "object") return _ret.v;
  }
}