[antlr-interest] Imaginary Node Constructor T[token-ref, "text"] throws error: missing attribute access on rule scope: token-ref

[John B. Brodie]

On Tue, 2011-03-22 at 17:21 -0400, The Researcher wrote:
> On Tue, Mar 22, 2011 at 5:14 PM, John B. Brodie <jbb at acm.org> wrote:
> 
> >  On Tue, 2011-03-22 at 16:46 -0400, The Researcher wrote:
> > > FYI
> > >
> > > In using Imaginary Node Constructor  T[token-ref,"text"]  as documented
> > in
> > > "The Definitive ANTLR Reference" pg. 176,
> > > the error  "missing attribute access on rule scope: token-ref"  was
> > given.
> > >
> > > I was able to use  T["text"] as documented  in
> > > http://www.antlr.org/wiki/display/ANTLR3/Tree+construction.
> > >
> > > I used the bug report for another bug a few days ago, but never saw it
> > added
> > > to the bug list, so I am using the interest list here instead.
> > >
> >
> > you need a $ on the token ref. see the example on pg. 176. e.g. this:
> >
> > compoundStatement
> >  : lc='[' statement* '}' -> ^(SLIST[$lc] statemment *)
> >  ;
> >
> >
> >
> > John,
> 
> Thanks. I did. Here is the error and working text
> 
> Error:
> 
> byteExp = offsetAndOrSizeExpression
> -> ^(OffsetAndOrSize ^(ByteValue $byteExp) ^(BitValue
> IntegerLiteral[$byteExp,"0"]))
> 
> Working:
> 
>  byteExp = offsetAndOrSizeExpression
> -> ^(OffsetAndOrSize ^(ByteValue $byteExp) ^(BitValue IntegerLiteral["0"]))

offestAndOrSizeExpression is not a token! so byteExp is not a token
reference...

> 
> Eric
> 
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