SOURCE_FILE
  STRUCT
    STRUCT_KW "struct"
    WHITESPACE " "
    NAME
      IDENT "S"
    WHITESPACE " "
    RECORD_FIELD_LIST
      L_CURLY "{"
      WHITESPACE " "
      RECORD_FIELD
        NAME
          IDENT "a"
        COLON ":"
        WHITESPACE " "
        PATH_TYPE
          PATH
            PATH_SEGMENT
              NAME_REF
                IDENT "i32"
      COMMA ","
      WHITESPACE " "
      RECORD_FIELD
        NAME
          IDENT "b"
        COLON ":"
        WHITESPACE " "
        PATH_TYPE
          PATH
            PATH_SEGMENT
              NAME_REF
                IDENT "f32"
      COMMA ","
      WHITESPACE " "
      RECORD_FIELD
        UNSAFE_KW "unsafe"
        WHITESPACE " "
        NAME
          IDENT "c"
        COLON ":"
        WHITESPACE " "
        PATH_TYPE
          PATH
            PATH_SEGMENT
              NAME_REF
                IDENT "u8"
      WHITESPACE " "
      R_CURLY "}"
  WHITESPACE "\n"
