Actually this rule should just ref RULE_REF:
> ruleref
> :
> ( ^((ROOT|BANG) r=RULE_REF ARG_ACTION?)
> | ^(r=RULE_REF ARG_ACTION?)
> )
> {
> if ( gtype==LEXER_GRAMMAR &&
> Character.isLowerCase($r.text.charAt(0)) ) {
> ErrorManager.grammarError(ErrorType.PARSER_RULES_NOT_ALLOWED,
> fileName,
> $r.token, $r.text);
> }
> }
> ;
like this:
ruleref
: RULE_REF
{BasicSemanticChecks.checkInvalidRuleRef(gtype, fileName,
$RULE_REF.token);}
;
That's all we care about. the beauty of tree pattern matcher!
Ter
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