8.5 Runtime Type Information

The Haxe compiler generates runtime type information (RTTI) for classes that are annotated or extend classes that are annotated with the :rtti metadata. This information is stored as a XML string in a static field __rtti and can be processed through haxe.rtti.XmlParser.process(). The resulting structure is haxe.rtti.TypeTree.

since Haxe 3.2.0

The type haxe.rtti.Rtti has been introduced in order to simplify working with RTTI. Retrieving this information is now very easy:

@:rtti
class Main {
  var x:String;

  static function main() {
    var rtti = haxe.rtti.Rtti.getRtti(Main);
    trace(rtti);
  }
}

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