26 lines
912 B
JavaScript
26 lines
912 B
JavaScript
'use strict';
|
|
var hide = require('./$.hide')
|
|
, redefine = require('./$.redefine')
|
|
, fails = require('./$.fails')
|
|
, defined = require('./$.defined')
|
|
, wks = require('./$.wks');
|
|
|
|
module.exports = function(KEY, length, exec){
|
|
var SYMBOL = wks(KEY)
|
|
, original = ''[KEY];
|
|
if(fails(function(){
|
|
var O = {};
|
|
O[SYMBOL] = function(){ return 7; };
|
|
return ''[KEY](O) != 7;
|
|
})){
|
|
redefine(String.prototype, KEY, exec(defined, SYMBOL, original));
|
|
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 original.call(string, this, arg); }
|
|
// 21.2.5.6 RegExp.prototype[@@match](string)
|
|
// 21.2.5.9 RegExp.prototype[@@search](string)
|
|
: function(string){ return original.call(string, this); }
|
|
);
|
|
}
|
|
}; |