Ter is aware of it but is holding off on fixing the bugs for org.antlr.Tool
3.4.
Is there any timeline on when will be the next release. I will be eager to
try it out as we want to upgrade, which we can't because of the issue I
reported on a different thread.
On Mon, Oct 24, 2011 at 12:24, Eric <researcher0...@gmail.com> wrote:
> On Mon, Oct 24, 2011 at 10:41 AM, Dieter Habelitz <
> dieter.habel...@habelitz.com> wrote:
>
> > Hi folks,
> >
> > When feeding ANTLR 3.4 with my Java grammars it doesn't generate valid
> > Java sources (26 compiler errors) - with v3.3 everything is okay.
> >
> > Here's a snipped of the grammar that raises one of the problems:
> >
> > statement
> > : block
> > | assertStatement
> > | ifStatement
> > | forStatement
> > | [... and so on ...]
> > ;
> >
> > ifStatement
> > : IF parenthesizedExpression ifStat=statement
> > ( ELSE elseStat=statement -> ^(IF parenthesizedExpression $ifStat
> > $elseStat)
> > | -> ^(IF parenthesizedExpression
> $ifStat)
> > )
> > ;
> >
> > Amongst other things v3.4 generates the following code for the 'ELSE'
> > branch
> > of the rule 'ifStatement' (have a look at the local 'variable
> > declaration': void =null;):
> >
> > public final void synpred137_Java_fragment() throws
> RecognitionException
> > {
> > void =null;
> >
> > // [... some comments not relevant here ...]
> > {
> > match(input,ELSE,FOLLOW_ELSE_in_synpred137_Java9244); if
> > (state.failed) return ;
> >
> > pushFollow(FOLLOW_statement_in_synpred137_Java9248);
> > elseStat=statement();
> >
> > state._fsp--;
> > if (state.failed) return ;
> >
> > }
> >
> > }
> >
> > However, v3.3 generates the following code from the same grammar:
> >
> > public final void synpred137_Java_fragment() throws
> RecognitionException
> > {
> > JavaParser.statement_return elseStat = null;
> >
> >
> > // [... some comments not relevant here ...]
> > {
> > match(input,ELSE,FOLLOW_ELSE_in_synpred137_Java9244); if
> > (state.failed) return ;
> > pushFollow(FOLLOW_statement_in_synpred137_Java9248);
> > elseStat=statement();
> >
> > state._fsp--;
> > if (state.failed) return ;
> >
> > }
> > }
> >
> > The complete grammars can be found at ...
> >
> >
> http://www.habelitz.com/index.php?option=com_content&task=view&id=12&Itemid=8
> >
> > Any hints? Switch back to org.antlr.Tool 3.3
>
>
>
>
> > A bug within v3.4? Yes
> >
>
> Ter is aware of it but is holding off on fixing the bugs for org.antlr.Tool
> 3.4.
>
>
> >
> > Ciao
> > Dieter
> >
> >
> > List: http://www.antlr.org/mailman/listinfo/antlr-interest
> > Unsubscribe:
> > http://www.antlr.org/mailman/options/antlr-interest/your-email-address
> >
>
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