I want to use a block from within itself... is there a better way than passing itself?

Is there something like self/thisContext I can access?

right now I can do

===============

transformTree := [ :root :block |

�� �� root children do: [ :each |

�� �� �� �� each doSomething.

�� �� �� �� block value: each value: block

�� �� ]

].

transformTree value: myRoot value: tranformTree.

===============

Thanks,

Peter