[antlr-interest] parameterized maps as arguments to rules??

[Benjamin Niemann]

David A Weiser wrote:

> I have the beginning of a rule:
> formalParameterDecls returns  [HashMap<String,String> params].
> 
> But I get a compilation error because of:
> public static class formalParameters_return extends
> ParserRuleReturnScope {
>         public HashMap<String;
>         public String> params;
>     };
> 
> In the java file for the grammar parser.  Am I to assume that java 1.5
> features aren't supported, or am I just going about this wrong?

The implementation of parameter parsing rather dump: it just splits the list
by commas. It does not treat generics or any other construct in any of the
target languages specially.
You'll have to create a typedef for HashMap<String,String> and use that for
the params type.
Oops, java does not have typedef, right? Mmm... Perhaps use "Object params"
and cast it to HashMap<String,String> later...

HTH

-- 
Benjamin Niemann
Email: pink at odahoda dot de
WWW: http://pink.odahoda.de/