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'use strict';
var PROPER_FUNCTION_NAME = require('../internals/function-name').PROPER;
var defineBuiltIn = require('../internals/define-built-in');
var anObject = require('../internals/an-object');
var $toString = require('../internals/to-string');
var fails = require('../internals/fails');
var getRegExpFlags = require('../internals/regexp-get-flags');
var TO_STRING = 'toString';
var RegExpPrototype = RegExp.prototype;
var nativeToString = RegExpPrototype[TO_STRING];
var NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });
// FF44- RegExp#toString has a wrong name
var INCORRECT_NAME = PROPER_FUNCTION_NAME && nativeToString.name != TO_STRING;
// `RegExp.prototype.toString` method
// https://tc39.es/ecma262/#sec-regexp.prototype.tostring
if (NOT_GENERIC || INCORRECT_NAME) {
defineBuiltIn(RegExp.prototype, TO_STRING, function toString() {
var R = anObject(this);
var pattern = $toString(R.source);
var flags = $toString(getRegExpFlags(R));
return '/' + pattern + '/' + flags;
}, { unsafe: true });
}