38 lines
1.4 KiB
JavaScript
38 lines
1.4 KiB
JavaScript
var $ = require('./$')
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, global = require('./$.global')
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, isRegExp = require('./$.is-regexp')
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, $flags = require('./$.flags')
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, $RegExp = global.RegExp
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, Base = $RegExp
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, proto = $RegExp.prototype
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, re1 = /a/g
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, re2 = /a/g
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// "new" creates a new object, old webkit buggy here
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, CORRECT_NEW = new $RegExp(re1) !== re1;
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if(require('./$.descriptors') && (!CORRECT_NEW || require('./$.fails')(function(){
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re2[require('./$.wks')('match')] = false;
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// RegExp constructor can alter flags and IsRegExp works correct with @@match
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return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';
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}))){
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$RegExp = function RegExp(p, f){
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var piRE = isRegExp(p)
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, fiU = f === undefined;
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return !(this instanceof $RegExp) && piRE && p.constructor === $RegExp && fiU ? p
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: CORRECT_NEW
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? new Base(piRE && !fiU ? p.source : p, f)
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: Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f);
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};
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$.each.call($.getNames(Base), function(key){
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key in $RegExp || $.setDesc($RegExp, key, {
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configurable: true,
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get: function(){ return Base[key]; },
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set: function(it){ Base[key] = it; }
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});
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});
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proto.constructor = $RegExp;
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$RegExp.prototype = proto;
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require('./$.redefine')(global, 'RegExp', $RegExp);
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}
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require('./$.set-species')('RegExp'); |