runtime/JavaScript/tests/functional/t058rewriteAST64.g


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grammar t058rewriteAST64;
options {language=JavaScript;output=AST;}
tokens {BLOCK;}
a : ID -> ID? ; // match an ID to optional ID
b : ID ;
ID : 'a'..'z'+ ;
WS : (' '|'\n') {$channel=HIDDEN;} ;