runtime/JavaScript/tests/functional/t058rewriteAST63.g


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grammar t058rewriteAST63;
options {language=JavaScript;output=AST;}
tokens {BLOCK;}
a : x+=ID (y=b)? -> ($x $y)?;
b : ID ;
ID : 'a'..'z'+ ;
WS : (' '|'\n') {$channel=HIDDEN;} ;