mirror of
https://github.com/CatalaLang/catala.git
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205 lines
8.1 KiB
OCaml
205 lines
8.1 KiB
OCaml
(* This file is part of the Catala compiler, a specification language for tax and social benefits
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computation rules. Copyright (C) 2020 Inria, contributor: Denis Merigoux
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<denis.merigoux@inria.fr>
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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in compliance with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software distributed under the License
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is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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or implied. See the License for the specific language governing permissions and limitations under
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the License. *)
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type t = { code_pos : Lexing.position * Lexing.position; law_pos : string list }
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let from_lpos (p : Lexing.position * Lexing.position) : t = { code_pos = p; law_pos = [] }
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let from_info (file : string) (sline : int) (scol : int) (eline : int) (ecol : int) : t =
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let spos =
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{ Lexing.pos_fname = file; Lexing.pos_lnum = sline; Lexing.pos_cnum = scol; Lexing.pos_bol = 1 }
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in
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let epos =
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{ Lexing.pos_fname = file; Lexing.pos_lnum = eline; Lexing.pos_cnum = ecol; Lexing.pos_bol = 1 }
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in
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{ code_pos = (spos, epos); law_pos = [] }
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let overwrite_law_info (pos : t) (law_pos : string list) : t = { pos with law_pos }
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let get_law_info (pos : t) : string list = pos.law_pos
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let get_start_line (pos : t) : int =
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let s, _ = pos.code_pos in
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s.Lexing.pos_lnum
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let get_start_column (pos : t) : int =
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let s, _ = pos.code_pos in
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s.Lexing.pos_cnum - s.Lexing.pos_bol + 1
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let get_end_line (pos : t) : int =
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let _, e = pos.code_pos in
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e.Lexing.pos_lnum
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let get_end_column (pos : t) : int =
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let _, e = pos.code_pos in
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e.Lexing.pos_cnum - e.Lexing.pos_bol + 1
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let get_file (pos : t) : string = (fst pos.code_pos).Lexing.pos_fname
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type input_file = FileName of string | Contents of string
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let to_string (pos : t) : string =
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let s, e = pos.code_pos in
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Printf.sprintf "in file %s, from %d:%d to %d:%d" s.Lexing.pos_fname s.Lexing.pos_lnum
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(s.Lexing.pos_cnum - s.Lexing.pos_bol + 1)
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e.Lexing.pos_lnum
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(e.Lexing.pos_cnum - e.Lexing.pos_bol + 1)
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let to_string_short (pos : t) : string =
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let s, e = pos.code_pos in
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Printf.sprintf "%s;%d:%d--%d:%d" s.Lexing.pos_fname s.Lexing.pos_lnum
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(s.Lexing.pos_cnum - s.Lexing.pos_bol + 1)
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e.Lexing.pos_lnum
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(e.Lexing.pos_cnum - e.Lexing.pos_bol + 1)
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let indent_number (s : string) : int =
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try
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let rec aux (i : int) = if s.[i] = ' ' then aux (i + 1) else i in
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aux 0
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with Invalid_argument _ -> String.length s
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let retrieve_loc_text (pos : t) : string =
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try
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let filename = get_file pos in
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let blue_style = [ ANSITerminal.Bold; ANSITerminal.blue ] in
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if filename = "" then "No position information"
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else
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let sline = get_start_line pos in
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let eline = get_end_line pos in
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let oc, input_line_opt =
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if filename = "stdin" then
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let line_index = ref 0 in
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let lines = String.split_on_char '\n' !Cli.contents in
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let input_line_opt () : string option =
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match List.nth_opt lines !line_index with
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| Some l ->
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line_index := !line_index + 1;
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Some l
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| None -> None
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in
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(None, input_line_opt)
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else
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let oc = open_in filename in
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let input_line_opt () : string option =
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try Some (input_line oc) with End_of_file -> None
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in
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(Some oc, input_line_opt)
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in
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let print_matched_line (line : string) (line_no : int) : string =
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let line_indent = indent_number line in
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let error_indicator_style = [ ANSITerminal.red; ANSITerminal.Bold ] in
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line
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^
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if line_no >= sline && line_no <= eline then
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"\n"
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^
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if line_no = sline && line_no = eline then
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Cli.print_with_style error_indicator_style "%*s"
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(get_end_column pos - 1)
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(String.make (max (get_end_column pos - get_start_column pos) 0) '^')
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else if line_no = sline && line_no <> eline then
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Cli.print_with_style error_indicator_style "%*s"
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(String.length line - 1)
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(String.make (max (String.length line - get_start_column pos) 0) '^')
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else if line_no <> sline && line_no <> eline then
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Cli.print_with_style error_indicator_style "%*s%s" line_indent ""
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(String.make (max (String.length line - line_indent) 0) '^')
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else if line_no <> sline && line_no = eline then
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Cli.print_with_style error_indicator_style "%*s%*s" line_indent ""
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(get_end_column pos - 1 - line_indent)
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(String.make (max (get_end_column pos - line_indent) 0) '^')
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else assert false (* should not happen *)
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else ""
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in
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let include_extra_count = 0 in
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let rec get_lines (n : int) : string list =
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match input_line_opt () with
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| Some line ->
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if n < sline - include_extra_count then get_lines (n + 1)
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else if n >= sline - include_extra_count && n <= eline + include_extra_count then
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print_matched_line line n :: get_lines (n + 1)
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else []
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| None -> []
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in
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let pos_lines = get_lines 1 in
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let spaces = int_of_float (log10 (float_of_int eline)) + 1 in
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let legal_pos_lines =
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List.rev
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(List.map
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(fun s -> Re.Pcre.substitute ~rex:(Re.Pcre.regexp "\n\\s*") ~subst:(fun _ -> " ") s)
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pos.law_pos)
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in
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(match oc with None -> () | Some oc -> close_in oc);
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Cli.print_with_style blue_style "%*s--> %s\n%s\n%s" spaces "" filename
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(Cli.add_prefix_to_each_line
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(Printf.sprintf "\n%s" (String.concat "\n" pos_lines))
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(fun i ->
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let cur_line = sline - include_extra_count + i - 1 in
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if
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cur_line >= sline
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&& cur_line <= sline + (2 * (eline - sline))
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&& cur_line mod 2 = sline mod 2
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then Cli.print_with_style blue_style "%*d | " spaces (sline + ((cur_line - sline) / 2))
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else if cur_line >= sline - include_extra_count && cur_line < sline then
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Cli.print_with_style blue_style "%*d | " spaces cur_line
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else if
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cur_line <= sline + (2 * (eline - sline)) + 1 + include_extra_count
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&& cur_line > sline + (2 * (eline - sline)) + 1
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then Cli.print_with_style blue_style "%*d | " spaces (cur_line - (eline - sline + 1))
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else Cli.print_with_style blue_style "%*s | " spaces ""))
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(Cli.add_prefix_to_each_line
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(Printf.sprintf "%s"
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(String.concat "\n"
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(List.map (fun l -> Cli.print_with_style blue_style "%s" l) legal_pos_lines)))
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(fun i ->
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if i = 0 then Cli.print_with_style blue_style "%*s + " (spaces + (2 * i)) ""
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else Cli.print_with_style blue_style "%*s+-+ " (spaces + (2 * i) - 1) ""))
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with Sys_error _ -> "Location:" ^ to_string pos
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type 'a marked = 'a * t
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let no_pos : t =
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let zero_pos =
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{ Lexing.pos_fname = ""; Lexing.pos_lnum = 0; Lexing.pos_cnum = 0; Lexing.pos_bol = 0 }
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in
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{ code_pos = (zero_pos, zero_pos); law_pos = [] }
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let unmark ((x, _) : 'a marked) : 'a = x
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let get_position ((_, x) : 'a marked) : t = x
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let map_under_mark (f : 'a -> 'b) ((x, y) : 'a marked) : 'b marked = (f x, y)
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let same_pos_as (x : 'a) ((_, y) : 'b marked) : 'a marked = (x, y)
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let unmark_option (x : 'a marked option) : 'a option =
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match x with Some x -> Some (unmark x) | None -> None
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class ['self] marked_map =
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object (_self : 'self)
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constraint
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'self = < visit_marked : 'a. ('env -> 'a -> 'a) -> 'env -> 'a marked -> 'a marked ; .. >
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method visit_marked : 'a. ('env -> 'a -> 'a) -> 'env -> 'a marked -> 'a marked =
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fun f env x -> same_pos_as (f env (unmark x)) x
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end
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class ['self] marked_iter =
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object (_self : 'self)
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constraint 'self = < visit_marked : 'a. ('env -> 'a -> unit) -> 'env -> 'a marked -> unit ; .. >
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method visit_marked : 'a. ('env -> 'a -> unit) -> 'env -> 'a marked -> unit =
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fun f env x -> f env (unmark x)
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end
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