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FROM: barry.j.kelly at gmail.com 
DATE: Fri, 22 Oct 2004 17:11:24 +0100 
SUBJECT: Best practice for ASTs with expression types / annotation / pattern matching on annotations 

I'm writing what will, essentially, be a functional language

interpreter. This means that the program is formed from 
expression trees. My strategy looks something like this: 

1) Use buildAST=true to create the initial AST in the 
grammar. 2) Use a tree parser to rewrite adding in type 
information. At first I thought of using a 'prefix' node to 
indicate type, so that, for every subtree where it logically
plugs into another tree grammar production, has a new root 
--------------------

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Subject: Best practice for ASTs with expression types / annotation / pattern matching on annotations
Date: Fri, 22 Oct 2004 17:11:24 +0100
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