Actionscript 2.0/3.0
Awesome Animator supports most of the Actionscript 2.0 syntax and also has a built-in Actionscript interpreter. Since 2011 it also has Actionscript 3.0 support including importing of AS3 classes. It has both a parser and compiler which can read actionscript from SWF files. It displays the methods and variables of a class in a tree-structure instead of textually.
Read more about this topic: Express Animator