29 lines
937 B
JavaScript
29 lines
937 B
JavaScript
|
'use strict';
|
||
|
|
var hide = require('./_hide');
|
||
|
|
var redefine = require('./_redefine');
|
||
|
|
var fails = require('./_fails');
|
||
|
|
var defined = require('./_defined');
|
||
|
|
var wks = require('./_wks');
|
||
|
|
|
||
|
|
module.exports = function (KEY, length, exec) {
|
||
|
|
var SYMBOL = wks(KEY);
|
||
|
|
var fns = exec(defined, SYMBOL, ''[KEY]);
|
||
|
|
var strfn = fns[0];
|
||
|
|
var rxfn = fns[1];
|
||
|
|
if (fails(function () {
|
||
|
|
var O = {};
|
||
|
|
O[SYMBOL] = function () { return 7; };
|
||
|
|
return ''[KEY](O) != 7;
|
||
|
|
})) {
|
||
|
|
redefine(String.prototype, KEY, strfn);
|
||
|
|
hide(RegExp.prototype, SYMBOL, length == 2
|
||
|
|
// 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)
|
||
|
|
// 21.2.5.11 RegExp.prototype[@@split](string, limit)
|
||
|
|
? function (string, arg) { return rxfn.call(string, this, arg); }
|
||
|
|
// 21.2.5.6 RegExp.prototype[@@match](string)
|
||
|
|
// 21.2.5.9 RegExp.prototype[@@search](string)
|
||
|
|
: function (string) { return rxfn.call(string, this); }
|
||
|
|
);
|
||
|
|
}
|
||
|
|
};
|