--- /dev/null
+var global = require('./_global')
+ , inheritIfRequired = require('./_inherit-if-required')
+ , dP = require('./_object-dp').f
+ , gOPN = require('./_object-gopn').f
+ , isRegExp = require('./_is-regexp')
+ , $flags = require('./_flags')
+ , $RegExp = global.RegExp
+ , Base = $RegExp
+ , proto = $RegExp.prototype
+ , re1 = /a/g
+ , re2 = /a/g
+ // "new" creates a new object, old webkit buggy here
+ , CORRECT_NEW = new $RegExp(re1) !== re1;
+
+if(require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function(){
+ re2[require('./_wks')('match')] = false;
+ // RegExp constructor can alter flags and IsRegExp works correct with @@match
+ return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
+}))){
+ $RegExp = function RegExp(p, f){
+ var tiRE = this instanceof $RegExp
+ , piRE = isRegExp(p)
+ , fiU = f === undefined;
+ return !tiRE && piRE && p.constructor === $RegExp && fiU ? p
+ : inheritIfRequired(CORRECT_NEW
+ ? new Base(piRE && !fiU ? p.source : p, f)
+ : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)
+ , tiRE ? this : proto, $RegExp);
+ };
+ var proxy = function(key){
+ key in $RegExp || dP($RegExp, key, {
+ configurable: true,
+ get: function(){ return Base[key]; },
+ set: function(it){ Base[key] = it; }
+ });
+ };
+ for(var keys = gOPN(Base), i = 0; keys.length > i; )proxy(keys[i++]);
+ proto.constructor = $RegExp;
+ $RegExp.prototype = proto;
+ require('./_redefine')(global, 'RegExp', $RegExp);
+}
+
+require('./_set-species')('RegExp');
\ No newline at end of file