SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "main"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE "\n    "
        CALL_EXPR
          PATH_EXPR
            PATH
              PATH_SEGMENT
                NAME_REF
                  IDENT "foo"
          ARG_LIST
            L_PAREN "("
            LITERAL
              ATTR
                POUND "#"
                L_BRACK "["
                PATH_META
                  PATH
                    PATH_SEGMENT
                      NAME_REF
                        IDENT "attr"
                R_BRACK "]"
              WHITESPACE " "
              INT_NUMBER "92"
            R_PAREN ")"
        WHITESPACE "\n"
        R_CURLY "}"
  WHITESPACE "\n"
