[antlr-interest] Impossible to reference more than one global scope?

[Matthieu Riou]

Looks like :)

Matthieu

On Jan 31, 2008 5:24 PM, Terence Parr <parrt at cs.usfca.edu> wrote:

> Hmm...scope be
> scope A, B, C;
>
> i thought.  Wow, did i forget the COMMA?
>
> Ter
>
> On Jan 31, 2008, at 3:36 PM, Matthieu Riou wrote:
>
> I found the solution by looking into the codegen grammar. Apparently
> several scopes should be declared simply by separating them with a space
> like this:
>
> process
> scope BPELScope Parent;
>         :           ...
>
> Maybe this should be documented somewhere (it's not in the book) and the
> grammar posted online( [1] which seems to be indicating colons in the
> ruleScopeSpec rule) should be updated?
>
> Thanks,
> Matthieu
>
> [1] http://www.antlr.org/grammar/ANTLR/ANTLRv3.g
>
> On Jan 31, 2008 3:15 PM, Matthieu Riou <matthieu at offthelip.org> wrote:
>
> > Hi,
> >
> > I've having some problems with a rule that needs to reference two global
> > scopes:
> >
> > scope BPELScope { OScope oscope; }
> > scope Parent { OActivity activity; }
> > ...
> > process
> > scope BPELScope, Parent;
> >         :           ...
> >
> > This leads to a "expecting SEMI, found ',' " error. Moreover the java
> > code generated is missing a stack push as I only have the following:
> >
> > Parent_stack.push(new Parent_scope());
> >
> > The BPELScope stack should also be pushed a new value but it's not,
> > resulting in an EmptyStackException at runtime. I also tried specifying the
> > two scopes as two different lines like this:
> >
> > process
> > scope BPELScope;
> > scope Parent;
> >         :           ...
> >
> > The error disappears but the call to push a new value in the stack is
> > still missing resulting in the same EmptyStackException. Am I missing the
> > right way to specify several global scope references or is it a bug?
> >
> > Thanks,
> > Matthieu
> >
>
>
>
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