112 lines
2.8 KiB
OCaml
112 lines
2.8 KiB
OCaml
(* Driver for the parser of Ligo *)
|
|
|
|
open! EvalOpt (* Reads the command-line options: Effectful! *)
|
|
|
|
let sprintf = Printf.sprintf
|
|
|
|
(* Error printing and exception tracing *)
|
|
|
|
let () = Printexc.record_backtrace true
|
|
|
|
let external_ text =
|
|
Utils.highlight (Printf.sprintf "External error: %s" text); exit 1;;
|
|
|
|
type Error.t += ParseError
|
|
|
|
let error_to_string = function
|
|
ParseError -> "Syntax error.\n"
|
|
| _ -> assert false
|
|
|
|
let print_error ?(offsets=true) mode Region.{region; value} =
|
|
let msg = error_to_string value in
|
|
let file = match EvalOpt.input with
|
|
None | Some "-" -> false
|
|
| Some _ -> true in
|
|
let reg = region#to_string ~file ~offsets mode in
|
|
Utils.highlight (sprintf "Parse error %s:\n%s%!" reg msg)
|
|
|
|
(* Path to the Ligo standard library *)
|
|
(*
|
|
let lib_path =
|
|
match EvalOpt.libs with
|
|
[] -> ""
|
|
| libs -> let mk_I dir path = Printf.sprintf " -I %s%s" dir path
|
|
in List.fold_right mk_I libs ""
|
|
*)
|
|
|
|
(* Preprocessing the input source and opening the input channels *)
|
|
|
|
let prefix =
|
|
match EvalOpt.input with
|
|
None | Some "-" -> "temp"
|
|
| Some file -> Filename.(file |> basename |> remove_extension)
|
|
|
|
let suffix = ".pp.li"
|
|
|
|
let pp_input =
|
|
if Utils.String.Set.mem "cpp" EvalOpt.verbose
|
|
then prefix ^ suffix
|
|
else let pp_input, pp_out = Filename.open_temp_file prefix suffix
|
|
in close_out pp_out; pp_input
|
|
|
|
let cpp_cmd =
|
|
match EvalOpt.input with
|
|
None | Some "-" ->
|
|
Printf.sprintf "cpp -traditional-cpp - -o %s" pp_input
|
|
| Some file ->
|
|
Printf.sprintf "cpp -traditional-cpp %s -o %s" file pp_input
|
|
|
|
let () =
|
|
if Utils.String.Set.mem "cpp" EvalOpt.verbose
|
|
then Printf.eprintf "%s\n%!" cpp_cmd;
|
|
if Sys.command cpp_cmd <> 0 then
|
|
external_ (Printf.sprintf "the command \"%s\" failed." cpp_cmd)
|
|
|
|
(* Instanciating the lexer *)
|
|
|
|
module Lexer = Lexer.Make (LexToken)
|
|
|
|
let Lexer.{read; buffer; get_pos; get_last; close} =
|
|
Lexer.open_token_stream (Some pp_input)
|
|
|
|
and cout = stdout
|
|
|
|
let log = Lexer.output_token ~offsets:EvalOpt.offsets
|
|
EvalOpt.mode EvalOpt.cmd cout
|
|
|
|
and close_all () = close (); close_out cout
|
|
|
|
(* Tokeniser *)
|
|
|
|
let tokeniser = read ~log
|
|
|
|
(* Main *)
|
|
|
|
let () =
|
|
try
|
|
let ast = Parser.program tokeniser buffer in
|
|
if Utils.String.Set.mem "ast" EvalOpt.verbose
|
|
then AST.print_tokens ast
|
|
with
|
|
Lexer.Error err ->
|
|
close_all ();
|
|
Lexer.print_error ~offsets EvalOpt.mode err
|
|
| Parser.Error ->
|
|
let region = get_last () in
|
|
let error = Region.{region; value=ParseError} in
|
|
let () = close_all () in
|
|
print_error ~offsets EvalOpt.mode error
|
|
| Sys_error msg -> Utils.highlight msg
|
|
|
|
(* Temporary: force dune to build AST2.ml *)
|
|
let () =
|
|
let open AST2 in
|
|
let _ = s_ast in
|
|
()
|
|
|
|
(* Temporary: force dune to build AST2.ml *)
|
|
let () =
|
|
let open Typecheck2 in
|
|
let _ = temporary_force_dune in
|
|
()
|