-(*
- * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
- * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
- * This file is part of Coccinelle.
- *
- * Coccinelle is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, according to version 2 of the License.
- *
- * Coccinelle is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>.
- *
- * The authors reserve the right to distribute this or future versions of
- * Coccinelle under other licenses.
- *)
-
-
(* splits the entire file into minus and plus fragments, and parses each
separately (thus duplicating work for the parsing of the context elements) *)
(function x ->
if not (List.mem x virt)
then
- failwith
- (Printf.sprintf "unknown virtual rule %s\n" x))
- (!Flag_parsing_cocci.defined_virtual_rules @
- !Flag_parsing_cocci.undefined_virtual_rules);
- List.map
- (function x ->
- if List.mem x !Flag_parsing_cocci.defined_virtual_rules
- then (x,true)
- else if List.mem x !Flag_parsing_cocci.undefined_virtual_rules
- then (x,false)
- else
- (*Printf.fprintf stderr
- "warning: no value specified for virtual rule %s, assuming unmatched\n" x;*)
- (x,false))
- virt
+ failwith
+ (Printf.sprintf "unknown virtual rule %s\n" x))
+ !Flag_parsing_cocci.defined_virtual_rules
let drop_last extra l = List.rev(extra@(List.tl(List.rev l)))
Data.in_iso := false;
existing_isos@(List.concat (List.rev res))
+(* None = dependency not satisfied
+ Some dep = dependency satisfied or unknown and dep has virts optimized
+ away *)
+let eval_depend dep virt =
+ let rec loop dep =
+ match dep with
+ Ast.Dep req | Ast.EverDep req ->
+ if List.mem req virt
+ then
+ if List.mem req !Flag_parsing_cocci.defined_virtual_rules
+ then Some Ast.NoDep
+ else None
+ else Some dep
+ | Ast.AntiDep antireq | Ast.NeverDep antireq ->
+ if List.mem antireq virt
+ then
+ if not(List.mem antireq !Flag_parsing_cocci.defined_virtual_rules)
+ then Some Ast.NoDep
+ else None
+ else Some dep
+ | Ast.AndDep(d1,d2) ->
+ (match (loop d1, loop d2) with
+ (None,_) | (_,None) -> None
+ | (Some Ast.NoDep,x) | (x,Some Ast.NoDep) -> x
+ | (Some x,Some y) -> Some (Ast.AndDep(x,y)))
+ | Ast.OrDep(d1,d2) ->
+ (match (loop d1, loop d2) with
+ (None,None) -> None
+ | (Some Ast.NoDep,x) | (x,Some Ast.NoDep) | (None,x) | (x,None) -> x
+ | (Some x,Some y) -> Some (Ast.OrDep(x,y)))
+ | Ast.NoDep | Ast.FailDep -> Some dep
+ in
+ loop dep
+
let rec parse file =
+ Lexer_cocci.init();
let table = Common.full_charpos_to_pos file in
Common.with_open_infile file (fun channel ->
let lexbuf = Lexing.from_channel channel in
| Data.Iso s -> (include_files,s::iso_files,virt)
| Data.Virt l -> (include_files,iso_files,l@virt))
([],[],[]) include_and_iso_files in
+
List.iter (function x -> Hashtbl.add Lexer_cocci.rule_names x ())
virt;
let (_, plus_tokens) =
split_token_stream (minus_to_nothing tokens) in
+ (*
+ print_tokens "minus tokens" minus_tokens;
+ print_tokens "plus tokens" plus_tokens;
+ *)
+
let minus_tokens = consume_minus_positions minus_tokens in
let minus_tokens = prepare_tokens minus_tokens in
let plus_tokens = prepare_tokens plus_tokens in
get_rule_name PC.rule_name starts_with_name get_tokens file
"rule" in
match rulename with
- Ast.CocciRulename (Some s, a, b, c, d, e) ->
- parse_cocci_rule Ast.Normal old_metas (s, a, b, c, d, e)
- | Ast.GeneratedRulename (Some s, a, b, c, d, e) ->
- Data.in_generating := true;
- let res =
- parse_cocci_rule Ast.Generated old_metas (s,a,b,c,d,e) in
- Data.in_generating := false;
- res
- | Ast.ScriptRulename(l,deps) -> parse_script_rule l old_metas deps
+ Ast.CocciRulename (Some s, dep, b, c, d, e) ->
+ (match eval_depend dep virt with
+ Some (dep) ->
+ parse_cocci_rule Ast.Normal old_metas (s,dep,b,c,d,e)
+ | None ->
+ D.ignore_patch_or_match := true;
+ let res =
+ parse_cocci_rule Ast.Normal old_metas
+ (s, Ast.FailDep, b, c, d, e) in
+ D.ignore_patch_or_match := false;
+ res)
+ | Ast.GeneratedRulename (Some s, dep, b, c, d, e) ->
+ (match eval_depend dep virt with
+ Some (dep) ->
+ Data.in_generating := true;
+ let res =
+ parse_cocci_rule Ast.Normal old_metas (s,dep,b,c,d,e) in
+ Data.in_generating := false;
+ res
+ | None ->
+ D.ignore_patch_or_match := true;
+ Data.in_generating := true;
+ let res =
+ parse_cocci_rule Ast.Normal old_metas
+ (s, Ast.FailDep, b, c, d, e) in
+ D.ignore_patch_or_match := false;
+ Data.in_generating := false;
+ res)
+ | Ast.ScriptRulename(l,deps) ->
+ (match eval_depend deps virt with
+ Some deps -> parse_script_rule l old_metas deps
+ | None -> parse_script_rule l old_metas Ast.FailDep)
| Ast.InitialScriptRulename(l) -> parse_iscript_rule l
- | Ast.FinalScriptRulename(l) -> parse_fscript_rule l
- | _ -> failwith "Malformed rule name"
- in
+ | Ast.FinalScriptRulename(l) -> parse_fscript_rule l
+ | _ -> failwith "Malformed rule name" in
let rec loop old_metas starts_with_name =
(!Data.init_rule)();
(function prev -> function cur -> Common.union_set cur prev)
iso_files extra_iso_files,
(* included rules first *)
- List.fold_left (@) (loop [] (x = PC.TArob)) (List.rev extra_rules),
+ List.fold_left (function prev -> function cur -> cur@prev)
+ (loop [] (x = PC.TArob)) (List.rev extra_rules),
List.fold_left (@) virt extra_virt (*no dups allowed*))
| _ -> failwith "unexpected code before the first rule\n")
| (false,[(PC.TArobArob,_)]) | (false,[(PC.TArob,_)]) ->
(* parse to ast0 and then convert to ast *)
let process file isofile verbose =
let extra_path = Filename.dirname file in
- Lexer_cocci.init();
let (iso_files, rules, virt) = parse file in
- let virt = eval_virt virt in
+ eval_virt virt;
let std_isos =
match isofile with
None -> []
(fun () -> Get_constants.get_constants code) in (* for grep *)
let glimpse_tokens2 =
Common.profile_code "get_glimpse_constants" (* for glimpse *)
- (fun () -> Get_constants2.get_constants code neg_pos virt) in
+ (fun () -> Get_constants2.get_constants code neg_pos) in
- (metavars,code,fvs,neg_pos,ua,pos,grep_tokens,glimpse_tokens2,virt)
+ (metavars,code,fvs,neg_pos,ua,pos,grep_tokens,glimpse_tokens2)
HCoop / bpt / coccinelle.git / blobdiff