91 lines
3.1 KiB
OCaml
91 lines
3.1 KiB
OCaml
(***********************************************************************)
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(* *)
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(* ocamlbuild *)
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(* *)
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(* Nicolas Pouillard, Berke Durak, projet Gallium, INRIA Rocquencourt *)
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(* *)
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(* Copyright 2007 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(* Original author: Nicolas Pouillard *)
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open My_std
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open Log
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open Lexers
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type t = Lexers.conf
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let acknowledge_config config =
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let ack (tag, loc) = Param_tags.acknowledge (Some loc) tag in
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List.iter (fun (_, config) -> List.iter ack config.plus_tags) config
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let cache = Hashtbl.create 107
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let (configs, add_config) =
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let configs = ref [] in
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(fun () -> !configs),
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(fun config ->
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acknowledge_config config;
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configs := config :: !configs;
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Hashtbl.clear cache)
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let parse_lexbuf ?dir source lexbuf =
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lexbuf.Lexing.lex_curr_p <-
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{ lexbuf.Lexing.lex_curr_p with Lexing.pos_fname = source };
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let conf = Lexers.conf_lines dir lexbuf in
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add_config conf
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let parse_string s =
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parse_lexbuf (Printf.sprintf "STRING(%s)" s) (Lexing.from_string s)
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let parse_file ?dir file =
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with_input_file file begin fun ic ->
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parse_lexbuf ?dir file (Lexing.from_channel ic)
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end
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let key_match = Glob.eval
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let apply_config s (config : t) init =
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let add (tag, _loc) = Tags.add tag in
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let remove (tag, _loc) = Tags.remove tag in
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List.fold_left begin fun tags (key, v) ->
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if key_match key s then
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List.fold_right add v.plus_tags (List.fold_right remove v.minus_tags tags)
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else tags
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end init config
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let apply_configs s = List.fold_right (apply_config s) (configs ()) Tags.empty
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let tags_of_filename s =
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try Hashtbl.find cache s
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with Not_found ->
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let res = apply_configs s in
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let () = Hashtbl.replace cache s res in
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res
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let global_tags () = tags_of_filename ""
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let has_tag tag = Tags.mem tag (global_tags ())
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let tag_file file tags =
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if tags <> [] then parse_string (Printf.sprintf "%S: %s" file (String.concat ", " tags));;
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let tag_any tags =
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if tags <> [] then parse_string (Printf.sprintf "true: %s" (String.concat ", " tags));;
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let check_tags_usage useful_tags =
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let check_tag (tag, loc) =
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if not (Tags.mem tag useful_tags) then
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Log.eprintf "%aWarning: the tag %S is not used in any flag declaration, \
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so it will have no effect; it may be a typo. Otherwise use \
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`mark_tag_used` in your myocamlbuild.ml to disable \
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this warning."
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Loc.print_loc loc tag
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in
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let check_conf (_, values) =
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List.iter check_tag values.plus_tags;
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List.iter check_tag values.minus_tags;
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in
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List.iter (List.iter check_conf) (configs ())
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