[antlr-interest] Solved: Java.g4 bug? Attrib refs in lexer action

[Graham Wideman]

Hi Ter and all:

Regarding the bug I posted earlier, evidently ANTLR 4 requires different syntax for the attribute references in lexer actions. 

In Java.g4:

----------
Change:
----------
ENUM:   'enum' {if (!enumIsKeyword) $type=Identifier;}
    ;
ASSERT
    :   'assert' {if (!assertIsKeyword) $type=Identifier;}
    ;

----------
To:
----------
ENUM:   'enum' {if (!enumIsKeyword) setType(Identifier);}
    ;
ASSERT
    :   'assert' {if (!assertIsKeyword) setType(Identifier);}
    ;
----------

This might apply starting only with ANTLR4.0b2, since the earlier email thread "Bug in antlr4" discussing a different problem with Java.g4 didn't mention the problem described above.

-- Graham