50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
'use strict';
|
|
|
|
var define = require('define-properties');
|
|
var hasSymbols = require('has-symbols')();
|
|
var getPolyfill = require('./polyfill');
|
|
var regexpMatchAllPolyfill = require('./polyfill-regexp-matchall');
|
|
|
|
var defineP = Object.defineProperty;
|
|
var gOPD = Object.getOwnPropertyDescriptor;
|
|
|
|
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;
|
|
};
|