[antlr-interest] transforming AST's in place when generated

[Carter Cheng]

Thanks Mark. Just one followup question is there a way
to explicitly pass back a forest in ANTLR? i.e. when
you do 

-> init_declarator+

it seems like you are not really passing back a rooted
tree.

Thanks again,

Carter.


--- Mark Wright <markwright at internode.on.net> wrote:

> Hello Carter,
> 
> The idea is to pass the int type_id AST as a
> paramater to the
> init_declarator_list, and the init_declarator_list
> passes it as a
> parameter to the init_declarator, something like:
> 
> declaration
>   :    storage_class_specifier? type_id
> init_declarator_list[$storage_class_specifier.tree,
> $type_id.tree] ';'
>           -> init_declarator_list
>   ;
> 
> init_declarator_list[CommonTree scs, CommonTree ti]
>   :   init_declarator[$scs, $ti] (','
> init_declarator[$scs, $ti])*
>           -> init_declarator+
>   ;
> 
> init_declarator[CommonTree scs, CommonTree ti]
>   :    function_declarator
>           -> {(scs == null)}? ^(FUNCTION_DECLARATION
> {$ti} function_declarator)
>           -> {(scs != null)}? ^(FUNCTION_DECLARATION
> {$scs} {$ti} function_declarator)
>           ->
>   |   declarator initializer?
>           -> {(scs == null)}? ^(DD {$ti} declarator
> initializer?)
>           -> {(scs != null)}? ^(DD {$scs} {$ti}
> declarator initializer?)
>           ->
>   ;
> 
> etc.
> 
> Regards, Mark
> 
> -- 
> 



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