[antlr-interest] antlr 3.2.1 - when? (bugs 381 and 314)

[Laurent Caillette]

+1 for generic type with 2 or more rule return types (bias: I don't use scopes).

c.


On Thu, Dec 17, 2009 at 6:54 PM, Tomasz Jastrzebski
<tdjastrzebski at yahoo.com> wrote:
>
> Well, this bug 314 is some-how related to bug 381.
>
> Since version 3.1.2 "p+=rule" results in "strongly typed" collection of rule_return objects.
> This way rule return values can be conveniently accessed with no need to downcast.
>
> Unfortunately, this prevents definitions like: p+=ruleA | p+=ruleB
> So, the solution is to change the collection type back to generic RuleReturnScope and downcast to rule_return if/when needed.
>
> I think the best solution would be to modify the lexer/parser generator so it makes a smart choice and outputs "strongly typed" collection whenever possible, but when collection would contain two or more rule return types generic RuleReturnScope type is used.
>
> Thomas
>
>
>
> --- On Thu, 12/17/09, Laurent Caillette <laurent.caillette at gmail.com> wrote:
>
> From: Laurent Caillette <laurent.caillette at gmail.com>
> Subject: Re: [antlr-interest] antlr 3.2.1 - when?
> To: antlr-interest at antlr.org
> Cc: "Tomasz Jastrzebski" <tdjastrzebski at yahoo.com>
> Date: Thursday, December 17, 2009, 12:27 PM
>
> Hi all,
>
> How is it related to ANTLR-381? I'd be glad to move forward to ANTLR-3.2+
>
> Regards,
>
> c.
>
> On Thu, Dec 17, 2009 at 4:55 PM, Tomasz Jastrzebski
> <tdjastrzebski at yahoo.com> wrote:
> >
> > Hi all,
> >
> > When the new ANTLR version can be expected?
> > I am hoping to convince Terence to fix bug 314
> > http://www.antlr.org/jira/browse/ANTLR-314
> > Because of this glitch I am stacked with version 3.1.1
> >
> > Thanks,
> >
> > Thomas
> >
> >
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>
>
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