[antlr-interest] "type cannot be resolved or is not a field"

[phil jones]

Hi everyone,

I don't know if this is a support list, so forgive me if I shouldn't
be asking this here. (If not here, where?)

I just downloaded and am trying to learn Antlr, starting with the
calculator example in the five minute guide. I've generated the Java
lexer / parser, but when I try to compile these I'm getting the error
:

"type cannot be resolved or is not a field"

The error occurs in the line " this.type = _type;"

in a generated block :

    // $ANTLR start PLUS
    public final void mPLUS() throws RecognitionException {
        try {
            int _type = PLUS;
            // SimpleCalc.g:3:6: ( '+' )
            // SimpleCalc.g:3:8: '+'
            {
            match('+');

            }

            this.type = _type;
        }
        finally {
        }
    }
    // $ANTLR end PLUS

That's in the class SimpleCalcLexer which extends Lexer. So can it be
that Lexer doesn't have a "type" attribute? Should it have one?

I generated the lexer code from the command line, but am now trying to
compile it in Processing. (I put the antlr3.3 jar in the Processing
libraries directory.)

cheers

phil jones