SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE "\n    "
        EXPR_STMT
          FIELD_EXPR
            PATH_EXPR
              PATH
                PATH_SEGMENT
                  NAME_REF
                    IDENT "x"
            DOT "."
            NAME_REF
              IDENT "foo"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          FIELD_EXPR
            FIELD_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              DOT "."
              NAME_REF
                INT_NUMBER "0"
            DOT "."
            NAME_REF
              IDENT "bar"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          FIELD_EXPR
            FIELD_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              DOT "."
              NAME_REF
                INT_NUMBER "0"
            DOT "."
            NAME_REF
              INT_NUMBER "1"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          FIELD_EXPR
            FIELD_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              DOT "."
              NAME_REF
                INT_NUMBER "0"
            DOT "."
            WHITESPACE " "
            NAME_REF
              IDENT "bar"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          CALL_EXPR
            FIELD_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              DOT "."
              NAME_REF
                INT_NUMBER "0"
            ARG_LIST
              L_PAREN "("
              R_PAREN ")"
          SEMICOLON ";"
        WHITESPACE "\n"
        R_CURLY "}"
  WHITESPACE "\n"