parsing_cocci/data.ml

   1 (*
   2  * Copyright 2005-2010, Ecole des Mines de Nantes, University of Copenhagen
   3  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
   4  * This file is part of Coccinelle.
   5  *
   6  * Coccinelle is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, according to version 2 of the License.
   9  *
  10  * Coccinelle is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The authors reserve the right to distribute this or future versions of
  19  * Coccinelle under other licenses.
  20  *)
  21
  22
  23 module Ast0 = Ast0_cocci
  24 module Ast = Ast_cocci
  25
  26 (* types that clutter the .mly file *)
  27 (* for iso metavariables, true if they can only match nonmodified, unitary
  28    metavariables *)
  29 type fresh = bool
  30
  31 type incl_iso =
  32     Include of string | Iso of (string,string) Common.either
  33   | Virt of string list (* virtual rules *)
  34
  35 type clt =
  36     line_type * int * int * int * int (* starting spaces *) *
  37       (Ast_cocci.added_string * Ast0.position_info) list (* code before *) *
  38       (Ast_cocci.added_string * Ast0.position_info) list (* code after *) *
  39       Ast0.meta_pos (* position variable, minus only *)
  40
  41 (* ---------------------------------------------------------------------- *)
  42
  43 (* Things that need to be seen by the lexer and parser. *)
  44
  45 and line_type =
  46     MINUS | OPTMINUS | UNIQUEMINUS
  47   | PLUS | PLUSPLUS
  48   | CONTEXT | UNIQUE | OPT
  49
  50 type iconstraints = Ast.idconstraint
  51 type econstraints = Ast0.constraints
  52 type pconstraints = Ast.meta_name list
  53
  54 let in_rule_name = ref false
  55 let in_meta = ref false
  56 let in_iso = ref false
  57 let in_generating = ref false
  58 let ignore_patch_or_match = ref false
  59 let in_prolog = ref false
  60 (* state machine for lexer..., allows smpl keywords as type names *)
  61 let saw_struct = ref false
  62 let inheritable_positions =
  63   ref ([] : string list) (* rules from which posns can be inherited *)
  64
  65 let call_in_meta f =
  66   in_meta := true; saw_struct := false;
  67   let res = f() in
  68   in_meta := false;
  69   res
  70
  71 let all_metadecls =
  72   (Hashtbl.create(100) : (string, Ast.metavar list) Hashtbl.t)
  73
  74 let clear_meta: (unit -> unit) ref =
  75   ref (fun _ -> failwith "uninitialized add_meta")
  76
  77 let add_id_meta:
  78     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
  79   ref (fun _ -> failwith "uninitialized add_meta")
  80
  81 let add_virt_id_meta_found: (string -> string -> unit) ref =
  82   ref (fun _ -> failwith "uninitialized add_meta")
  83
  84 let add_virt_id_meta_not_found:
  85     (Ast_cocci.meta_name -> Ast0_cocci.pure -> unit) ref =
  86   ref (fun _ -> failwith "uninitialized add_meta")
  87
  88 let add_fresh_id_meta: (Ast.meta_name -> unit) ref =
  89   ref (fun _ -> failwith "uninitialized add_meta")
  90
  91 let add_type_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  92   ref (fun _ -> failwith "uninitialized add_meta")
  93
  94 let add_init_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  95   ref (fun _ -> failwith "uninitialized add_meta")
  96
  97 let add_param_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  98   ref (fun _ -> failwith "uninitialized add_meta")
  99
 100 let add_paramlist_meta:
 101     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
 102   ref (fun _ -> failwith "uninitialized add_meta")
 103
 104 let add_const_meta:
 105     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 106       Ast0.pure -> unit)
 107     ref =
 108   ref (fun _ -> failwith "uninitialized add_meta")
 109
 110 let add_err_meta:
 111     (Ast.meta_name -> econstraints -> Ast0.pure -> unit) ref =
 112   ref (fun _ -> failwith "uninitialized add_meta")
 113
 114 let add_exp_meta:
 115     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 116       Ast0.pure -> unit)
 117     ref =
 118   ref (fun _ -> failwith "uninitialized add_meta")
 119
 120 let add_idexp_meta:
 121     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 122       Ast0.pure -> unit)
 123     ref =
 124   ref (fun _ -> failwith "uninitialized add_meta")
 125
 126 let add_local_idexp_meta:
 127     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 128       Ast0.pure -> unit)
 129     ref =
 130   ref (fun _ -> failwith "uninitialized add_meta")
 131
 132 let add_explist_meta:
 133     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
 134   ref (fun _ -> failwith "uninitialized add_meta")
 135
 136 let add_stm_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 137   ref (fun _ -> failwith "uninitialized add_meta")
 138
 139 let add_stmlist_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 140   ref (fun _ -> failwith "uninitialized add_meta")
 141
 142 let add_func_meta:
 143     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 144   ref (fun _ -> failwith "uninitialized add_meta")
 145
 146 let add_local_func_meta:
 147     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 148   ref (fun _ -> failwith "uninitialized add_meta")
 149
 150 let add_declarer_meta:
 151     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 152   ref (fun _ -> failwith "uninitialized add_decl")
 153
 154 let add_iterator_meta:
 155     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 156   ref (fun _ -> failwith "uninitialized add_iter")
 157
 158 let add_pos_meta:
 159     (Ast.meta_name -> pconstraints -> Ast.meta_collect -> unit) ref =
 160   ref (fun _ -> failwith "uninitialized add_meta")
 161
 162 let add_type_name: (string -> unit) ref =
 163   ref (fun _ -> failwith "uninitialized add_type")
 164
 165 let add_declarer_name: (string -> unit) ref =
 166   ref (fun _ -> failwith "uninitialized add_decl")
 167
 168 let add_iterator_name: (string -> unit) ref =
 169   ref (fun _ -> failwith "uninitialized add_iter")
 170
 171 let init_rule: (unit -> unit) ref =
 172   ref (fun _ -> failwith "uninitialized install_bindings")
 173
 174 let install_bindings: (string -> unit) ref =
 175   ref (fun _ -> failwith "uninitialized install_bindings")