source: imaps-frontend/node_modules/string.prototype.matchall/shim.js

'use strict';

var define = require('define-properties');
var hasSymbols = require('has-symbols')();
var gOPD = require('gopd');

var getPolyfill = require('./polyfill');
var regexpMatchAllPolyfill = require('./polyfill-regexp-matchall');

var defineP = Object.defineProperty;

module.exports = function shimMatchAll() {
        var polyfill = getPolyfill();
        define(
                String.prototype,
                { matchAll: polyfill },
                { matchAll: function () { return String.prototype.matchAll !== polyfill; } }
        );
        if (hasSymbols) {
                // eslint-disable-next-line no-restricted-properties
                var symbol = Symbol.matchAll || (Symbol['for'] ? Symbol['for']('Symbol.matchAll') : Symbol('Symbol.matchAll'));
                define(
                        Symbol,
                        { matchAll: symbol },
                        { matchAll: function () { return Symbol.matchAll !== symbol; } }
                );

                if (defineP && gOPD) {
                        var desc = gOPD(Symbol, symbol);
                        if (!desc || desc.configurable) {
                                defineP(Symbol, symbol, {
                                        configurable: false,
                                        enumerable: false,
                                        value: symbol,
                                        writable: false
                                });
                        }
                }

                var regexpMatchAll = regexpMatchAllPolyfill();
                var func = {};
                func[symbol] = regexpMatchAll;
                var predicate = {};
                predicate[symbol] = function () {
                        return RegExp.prototype[symbol] !== regexpMatchAll;
                };
                define(RegExp.prototype, func, predicate);
        }
        return polyfill;
};