[antlr-interest] CSharp2 code generation bug for ANTLRWorks 1.2.3 with -debug

[Dukie Banderjee]

The following grammar produces uncompilable code when generated from ANTLRWorks using -debug in the ANTLR options. I'm not sure which version of ANTLR is being used by ANTLRWorks. If it matters, I have ANTLR 3.1.3 on my machine.

====

grammar EdifactDelfor;

options {
  language = 'CSharp2' ;
}

tokens {
}

file        : contents+ EOF ;

contents    : TEXT
        | SEP
        | WS
        | CSEP
        | EOL
        ;
EOL: '\'';
SEP: '+';
CSEP: ':';
TEXT: ('a'..'z'|'A'..'Z'|'0'..'9'|' '|'-'|','|'.'|'/'|'?')+ ;
WS: ('\r'? '\n')+  ;

====

Here is the culprit code that was generated (in the file() method):
default:
    if (cnt1 >= 1) goto loop1;
    EarlyExitException eee1 =
        new EarlyExitException(1, input);
    dbg.RecognitionException(eee);   // Note the missing '1': should be eee1

    throw eee1;

When I manually change the reference to eee1, the thing compiles.

This bug does not appear when -debug is turned off.

Rob

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