[antlr-interest] Rewrite Problem; Rule terminates without exception.
Gavin Lambert
antlr at mirality.co.nz
Sun Mar 16 06:15:32 PDT 2008
At 01:57 17/03/2008, Michael Ernst wrote:
>When I rewrite the tree and referencing the label twice, I get
>no tree duplicate attached to the tree. I thought I could
>duplicate nodes and trees by referencing them more than one
>time in a rewrite rule (Chapter 7; Duplicating Nodes and
>Trees (sample: dump : INT -> INT INT ;)).
I think you have to give them explicit labels when duplicating,
otherwise it assumes you're referring to separate instances. So
this should work:
dump : a=INT -> $a $a;
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