[antlr-interest] Don't know some tree walker rules for specific parser rules

[Jens Boeykens]

Hi,

What should be the walker rules for:

*A) r: (id -> id) ('+' id -> ^('+' r id))*;
B) r: (id -> ^(ARG id)) ('+' id -> ^('+' $r id))*;
C) r: (id -> ^(ARG id)) ('+' id -> ^('+' BLOCK id));*
*
*My suggestions:
A) r: id | ^('+' r id)*;
B) r: ^(ARG id) | ^('+' r id)*;
C) r: ^(ARG id) ^('+' BLOCK id);

Are these correct? Note that first 2 rules are using recursion and the third
does not.

Jens
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