parsing_cocci/data.ml

   1 (*
   2  * Copyright 2005-2009, 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       (string * Ast0.position_info) list (* code before *) *
  38       (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_fresh_id_meta: (Ast.meta_name -> unit) ref =
  82   ref (fun _ -> failwith "uninitialized add_meta")
  83
  84 let add_type_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  85   ref (fun _ -> failwith "uninitialized add_meta")
  86
  87 let add_init_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  88   ref (fun _ -> failwith "uninitialized add_meta")
  89
  90 let add_param_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
  91   ref (fun _ -> failwith "uninitialized add_meta")
  92
  93 let add_paramlist_meta:
  94     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
  95   ref (fun _ -> failwith "uninitialized add_meta")
  96
  97 let add_const_meta:
  98     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
  99       Ast0.pure -> unit)
 100     ref =
 101   ref (fun _ -> failwith "uninitialized add_meta")
 102
 103 let add_err_meta:
 104     (Ast.meta_name -> econstraints -> Ast0.pure -> unit) ref =
 105   ref (fun _ -> failwith "uninitialized add_meta")
 106
 107 let add_exp_meta:
 108     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 109       Ast0.pure -> unit)
 110     ref =
 111   ref (fun _ -> failwith "uninitialized add_meta")
 112
 113 let add_idexp_meta:
 114     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 115       Ast0.pure -> unit)
 116     ref =
 117   ref (fun _ -> failwith "uninitialized add_meta")
 118
 119 let add_local_idexp_meta:
 120     (Type_cocci.typeC list option -> Ast.meta_name -> econstraints ->
 121       Ast0.pure -> unit)
 122     ref =
 123   ref (fun _ -> failwith "uninitialized add_meta")
 124
 125 let add_explist_meta:
 126     (Ast.meta_name -> Ast.meta_name option -> Ast0.pure -> unit) ref =
 127   ref (fun _ -> failwith "uninitialized add_meta")
 128
 129 let add_stm_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 130   ref (fun _ -> failwith "uninitialized add_meta")
 131
 132 let add_stmlist_meta: (Ast.meta_name -> Ast0.pure -> unit) ref =
 133   ref (fun _ -> failwith "uninitialized add_meta")
 134
 135 let add_func_meta:
 136     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 137   ref (fun _ -> failwith "uninitialized add_meta")
 138
 139 let add_local_func_meta:
 140     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 141   ref (fun _ -> failwith "uninitialized add_meta")
 142
 143 let add_declarer_meta:
 144     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 145   ref (fun _ -> failwith "uninitialized add_decl")
 146
 147 let add_iterator_meta:
 148     (Ast.meta_name -> iconstraints -> Ast0.pure -> unit) ref =
 149   ref (fun _ -> failwith "uninitialized add_iter")
 150
 151 let add_pos_meta:
 152     (Ast.meta_name -> pconstraints -> Ast.meta_collect -> unit) ref =
 153   ref (fun _ -> failwith "uninitialized add_meta")
 154
 155 let add_type_name: (string -> unit) ref =
 156   ref (fun _ -> failwith "uninitialized add_type")
 157
 158 let add_declarer_name: (string -> unit) ref =
 159   ref (fun _ -> failwith "uninitialized add_decl")
 160
 161 let add_iterator_name: (string -> unit) ref =
 162   ref (fun _ -> failwith "uninitialized add_iter")
 163
 164 let init_rule: (unit -> unit) ref =
 165   ref (fun _ -> failwith "uninitialized install_bindings")
 166
 167 let install_bindings: (string -> unit) ref =
 168   ref (fun _ -> failwith "uninitialized install_bindings")