[antlr-interest] [C target] Duplicating tree error
Юрушкин Михаил
yurushkin at rambler.ru
Thu Jan 21 03:21:43 PST 2010
Good day,
I have the following rewrite rule:
type_declaration_stmt
: label? declaration_type_spec ( (T_COMMA attr_spec )* T_COLON_COLON )?
entity_decl (T_COMMA entity_decl)* end_of_stmt
-> ^(T_TYPE_DECLARATION_STMT declaration_type_spec attr_spec*
entity_decl)+
;
and this is a piece of tree parser grammar:
type_declaration_stmt
: ^(T_TYPE_DECLARATION_STMT declaration_type_spec attr_spec*
entity_decl)
;
When I give "integer a, b, c" on the input, 3 sequential
T_TYPE_DECLARATION-trees are
generated. It's right.
BUT declaration_type_spec subtree isn't dublicated (only the root of
subtree).
Where is mistake?
thanks
--
Best regards,
Michael
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