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 (*
  24  * Copyright 2005-2010, Ecole des Mines de Nantes, University of Copenhagen
  25  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
  26  * This file is part of Coccinelle.
  27  *
  28  * Coccinelle is free software: you can redistribute it and/or modify
  29  * it under the terms of the GNU General Public License as published by
  30  * the Free Software Foundation, according to version 2 of the License.
  31  *
  32  * Coccinelle is distributed in the hope that it will be useful,
  33  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  34  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  35  * GNU General Public License for more details.
  36  *
  37  * You should have received a copy of the GNU General Public License
  38  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  39  *
  40  * The authors reserve the right to distribute this or future versions of
  41  * Coccinelle under other licenses.
  42  *)
  43
  44
  45 module Ast0 = Ast0_cocci
  46 module Ast = Ast_cocci
  47
  48 (* types that clutter the .mly file *)
  49 (* for iso metavariables, true if they can only match nonmodified, unitary
  50    metavariables *)
  51 type fresh = bool
  52
  53 type incl_iso =
  54     Include of string | Iso of (string,string) Common.either
  55   | Virt of string list (* virtual rules *)
  56
  57 type clt =
  58     line_type * int * int * int * int (* starting spaces *) *
  59       (Ast_cocci.added_string * Ast0.position_info) list (* code before *) *
  60       (Ast_cocci.added_string * Ast0.position_info) list (* code after *) *
  61       Ast0.meta_pos (* position variable, minus only *)
  62
  63 (* ---------------------------------------------------------------------- *)
  64
  65 (* Things that need to be seen by the lexer and parser. *)
  66
  67 and line_type =
  68     MINUS | OPTMINUS | UNIQUEMINUS
  69   | PLUS | PLUSPLUS
  70   | CONTEXT | UNIQUE | OPT
  71
  72 type iconstraints = Ast.idconstraint
  73 type econstraints = Ast0.constraints
  74 type pconstraints = Ast.meta_name list
  75
  76 let in_rule_name = ref false
  77 let in_meta = ref false
  78 let in_iso = ref false
  79 let in_generating = ref false
  80 let ignore_patch_or_match = ref false
  81 let in_prolog = ref false
  82 (* state machine for lexer..., allows smpl keywords as type names *)
  83 let saw_struct = ref false
  84 let inheritable_positions =
  85   ref ([] : string list) (* rules from which posns can be inherited *)
  86
  87 let call_in_meta f =
  88   in_meta := true; saw_struct := false;
  89   let res = f() in
  90   in_meta := false;
  91   res
  92
  93 let all_metadecls =
  94   (Hashtbl.create(100) : (string, Ast.metavar list) Hashtbl.t)
  95
  96 let clear_meta: (unit -> unit) ref =
  97   ref (fun _ -> failwith "uninitialized add_meta")
  98
  99 let add_id_meta:
 100     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 101   ref (fun _ -> failwith "uninitialized add_meta")
 102
 103 let add_virt_id_meta_found: (string -> string -> unit) ref =
 104   ref (fun _ -> failwith "uninitialized add_meta")
 105
 106 let add_virt_id_meta_not_found:
 107     (Ast_cocci.meta_name -> Ast0_cocci.pure -> unit) ref =
 108   ref (fun _ -> failwith "uninitialized add_meta")
 109
 110 let add_fresh_id_meta: (Ast.meta_name -> unit) ref =
 111   ref (fun _ -> failwith "uninitialized add_meta")
 112
 113 let add_type_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 114   ref (fun _ -> failwith "uninitialized add_meta")
 115
 116 let add_init_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 117   ref (fun _ -> failwith "uninitialized add_meta")
 118
 119 let add_param_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 120   ref (fun _ -> failwith "uninitialized add_meta")
 121
 122 let add_paramlist_meta:
 123     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
 124   ref (fun _ -> failwith "uninitialized add_meta")
 125
 126 let add_const_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_err_meta:
 133     (Ast.meta_name -> econstraints -> Ast0.pure -> unit) ref =
 134   ref (fun _ -> failwith "uninitialized add_meta")
 135
 136 let add_exp_meta:
 137     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 138       Ast0.pure -> unit)
 139     ref =
 140   ref (fun _ -> failwith "uninitialized add_meta")
 141
 142 let add_idexp_meta:
 143     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 144       Ast0.pure -> unit)
 145     ref =
 146   ref (fun _ -> failwith "uninitialized add_meta")
 147
 148 let add_local_idexp_meta:
 149     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 150       Ast0.pure -> unit)
 151     ref =
 152   ref (fun _ -> failwith "uninitialized add_meta")
 153
 154 let add_explist_meta:
 155     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
 156   ref (fun _ -> failwith "uninitialized add_meta")
 157
 158 let add_stm_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 159   ref (fun _ -> failwith "uninitialized add_meta")
 160
 161 let add_stmlist_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 162   ref (fun _ -> failwith "uninitialized add_meta")
 163
 164 let add_func_meta:
 165     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 166   ref (fun _ -> failwith "uninitialized add_meta")
 167
 168 let add_local_func_meta:
 169     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 170   ref (fun _ -> failwith "uninitialized add_meta")
 171
 172 let add_declarer_meta:
 173     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 174   ref (fun _ -> failwith "uninitialized add_decl")
 175
 176 let add_iterator_meta:
 177     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 178   ref (fun _ -> failwith "uninitialized add_iter")
 179
 180 let add_pos_meta:
 181     (Ast.meta_name -> pconstraints -> Ast.meta_collect -> unit) ref =
 182   ref (fun _ -> failwith "uninitialized add_meta")
 183
 184 let add_type_name: (string -> unit) ref =
 185   ref (fun _ -> failwith "uninitialized add_type")
 186
 187 let add_declarer_name: (string -> unit) ref =
 188   ref (fun _ -> failwith "uninitialized add_decl")
 189
 190 let add_iterator_name: (string -> unit) ref =
 191   ref (fun _ -> failwith "uninitialized add_iter")
 192
 193 let init_rule: (unit -> unit) ref =
 194   ref (fun _ -> failwith "uninitialized install_bindings")
 195
 196 let install_bindings: (string -> unit) ref =
 197   ref (fun _ -> failwith "uninitialized install_bindings")