DSL EXPRESSION:
1 |  2 ^  3


AST:
"block" [tt:block] [nt:StatementBlock]
    "|" [tt:op_bit_or] [nt:BareBoolean]
        "|" [tt:op_bit_or] [nt:Operator]
            "1" [tt:int_literal] [nt:int_literal]
            "^" [tt:op_bit_xor] [nt:Operator]
                "2" [tt:int_literal] [nt:int_literal]
                "3" [tt:int_literal] [nt:int_literal]

