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'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); }
);
}
};
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