[antlr-interest] Problem with keeping data associated with AST nodes in antlr transform mode

Terence Parr parrt at cs.usfca.edu
Tue Jun 15 10:55:14 PDT 2004


Hi,

Fortunately, there is an easy answer!  You need to refer to the tree 
created by antlr not the "input" tree.  Use #b.setData(data) and your 
whole world looks better. :)  The key diff is:

			b_AST.setType(VAR);

vs

			b.setType(VAR);

when you use #b vs b.  #b operates like it does in a regular parser: it 
refers to the output tree.

Ter
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