compiler/src/exe/tigerc.ml

   1 let lexbuf_set_filename lb filename : unit =
   2   let Lexing.({lex_start_p; lex_curr_p; _}) = lb in
   3   lb.Lexing.lex_start_p <- {lex_start_p with Lexing.pos_fname = filename};
   4   lb.Lexing.lex_curr_p  <- {lex_curr_p  with Lexing.pos_fname = filename}
   5
   6 let () =
   7   let path_to_program_file = Sys.argv.(1) in
   8   let ic = open_in path_to_program_file in
   9   let lexbuf = Lexing.from_channel ic in
  10   lexbuf_set_filename lexbuf path_to_program_file;
  11   (match Tiger.Parser.program Tiger.Lexer.token lexbuf with
  12   | exception Tiger.Error.T error ->
  13       Printf.eprintf "%s\n" (Tiger.Error.to_string error);
  14       exit 1;
  15   | absyn ->
  16       print_endline (Tiger.Absyn.to_string absyn)
  17   );
  18   close_in ic;