SOURCE_FILE
  STRUCT
    STRUCT_KW "struct"
    WHITESPACE " "
    NAME
      IDENT "B"
    TUPLE_FIELD_LIST
      L_PAREN "("
      TUPLE_FIELD
        VISIBILITY
          PUB_KW "pub"
        WHITESPACE " "
        PAREN_TYPE
          L_PAREN "("
          PATH_TYPE
            PATH
              PATH
                PATH_SEGMENT
                  NAME_REF
                    SUPER_KW "super"
              COLON2 "::"
              PATH_SEGMENT
                NAME_REF
                  IDENT "A"
          R_PAREN ")"
      R_PAREN ")"
    SEMICOLON ";"
  WHITESPACE "\n"
  STRUCT
    STRUCT_KW "struct"
    WHITESPACE " "
    NAME
      IDENT "B"
    TUPLE_FIELD_LIST
      L_PAREN "("
      TUPLE_FIELD
        VISIBILITY
          PUB_KW "pub"
        WHITESPACE " "
        TUPLE_TYPE
          L_PAREN "("
          PATH_TYPE
            PATH
              PATH
                PATH_SEGMENT
                  NAME_REF
                    CRATE_KW "crate"
              COLON2 "::"
              PATH_SEGMENT
                NAME_REF
                  IDENT "A"
          COMMA ","
          R_PAREN ")"
      R_PAREN ")"
    SEMICOLON ";"
  WHITESPACE "\n"
