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f537ebc4 | 1 | (* |
17ba0788 C |
2 | * Copyright 2012, INRIA |
3 | * Julia Lawall, Gilles Muller | |
4 | * Copyright 2010-2011, INRIA, University of Copenhagen | |
f537ebc4 C |
5 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix |
6 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
7 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix | |
8 | * This file is part of Coccinelle. | |
9 | * | |
10 | * Coccinelle is free software: you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation, according to version 2 of the License. | |
13 | * | |
14 | * Coccinelle is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
21 | * | |
22 | * The authors reserve the right to distribute this or future versions of | |
23 | * Coccinelle under other licenses. | |
24 | *) | |
25 | ||
26 | ||
34e49164 C |
27 | open Common |
28 | ||
485bce71 | 29 | module Flag_engine = Flag_matcher |
34e49164 | 30 | (*****************************************************************************) |
ae4735db | 31 | (* The functor argument *) |
34e49164 C |
32 | (*****************************************************************************) |
33 | ||
34 | (* info passed recursively in monad in addition to binding *) | |
ae4735db | 35 | type xinfo = { |
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36 | optional_storage_iso : bool; |
37 | optional_qualifier_iso : bool; | |
38 | value_format_iso : bool; | |
5427db06 | 39 | optional_declarer_semicolon_iso : bool; |
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40 | } |
41 | ||
42 | module XMATCH = struct | |
43 | ||
44 | (* ------------------------------------------------------------------------*) | |
ae4735db | 45 | (* Combinators history *) |
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46 | (* ------------------------------------------------------------------------*) |
47 | (* | |
ae4735db | 48 | * version0: |
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49 | * type ('a, 'b) matcher = 'a -> 'b -> bool |
50 | * | |
51 | * version1: same but with a global variable holding the current binding | |
52 | * BUT bug | |
53 | * - can have multiple possibilities | |
54 | * - globals sux | |
ae4735db | 55 | * - sometimes have to undo, cos if start match, then it binds, |
34e49164 | 56 | * and if later it does not match, then must undo the first binds. |
ae4735db | 57 | * ex: when match parameters, can try to match, but then we found far |
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58 | * later that the last argument of a function does not match |
59 | * => have to uando the binding !!! | |
ae4735db | 60 | * (can handle that too with a global, by saving the |
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61 | * global, ... but sux) |
62 | * => better not use global | |
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63 | * |
64 | * version2: | |
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65 | * type ('a, 'b) matcher = binding -> 'a -> 'b -> binding list |
66 | * | |
67 | * Empty list mean failure (let matchfailure = []). | |
ae4735db | 68 | * To be able to have pretty code, have to use partial application |
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69 | * powa, and so the type is in fact |
70 | * | |
71 | * version3: | |
72 | * type ('a, 'b) matcher = 'a -> 'b -> binding -> binding list | |
73 | * | |
74 | * Then by defining the correct combinators, can have quite pretty code (that | |
75 | * looks like the clean code of version0). | |
ae4735db | 76 | * |
34e49164 | 77 | * opti: return a lazy list of possible matchs ? |
ae4735db | 78 | * |
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79 | * version4: type tin = Lib_engine.metavars_binding |
80 | *) | |
81 | ||
82 | (* ------------------------------------------------------------------------*) | |
ae4735db | 83 | (* Standard type and operators *) |
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84 | (* ------------------------------------------------------------------------*) |
85 | ||
ae4735db | 86 | type tin = { |
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87 | extra: xinfo; |
88 | binding: Lib_engine.metavars_binding; | |
1be43e12 | 89 | binding0: Lib_engine.metavars_binding; (* inherited bindings *) |
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90 | } |
91 | (* 'x is a ('a * 'b) but in fact dont care about 'b, we just tag the SP *) | |
92 | (* opti? use set instead of list *) | |
ae4735db | 93 | type 'x tout = ('x * Lib_engine.metavars_binding) list |
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94 | |
95 | type ('a, 'b) matcher = 'a -> 'b -> tin -> ('a * 'b) tout | |
96 | ||
97 | (* was >&&> *) | |
98 | let (>>=) m1 m2 = fun tin -> | |
99 | let xs = m1 tin in | |
ae4735db | 100 | let xxs = xs +> List.map (fun ((a,b), binding) -> |
1be43e12 | 101 | m2 a b {tin with binding = binding} |
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102 | ) in |
103 | List.flatten xxs | |
104 | ||
105 | (* Je compare les bindings retournés par les differentes branches. | |
106 | * Si la deuxieme branche amene a des bindings qui sont deja presents | |
107 | * dans la premiere branche, alors je ne les accepte pas. | |
ae4735db | 108 | * |
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109 | * update: still useful now that julia better handle Exp directly via |
110 | * ctl tricks using positions ? | |
111 | *) | |
ae4735db | 112 | let (>|+|>) m1 m2 = fun tin -> |
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113 | (* CHOICE |
114 | let xs = m1 tin in | |
115 | if null xs | |
116 | then m2 tin | |
117 | else xs | |
118 | *) | |
119 | let res1 = m1 tin in | |
120 | let res2 = m2 tin in | |
121 | let list_bindings_already = List.map snd res1 in | |
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122 | res1 ++ |
123 | (res2 +> List.filter (fun (x, binding) -> | |
124 | not | |
125 | (list_bindings_already +> List.exists (fun already -> | |
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126 | Lib_engine.equal_binding binding already)) |
127 | )) | |
128 | ||
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129 | |
130 | ||
131 | ||
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132 | let (>||>) m1 m2 = fun tin -> |
133 | (* CHOICE | |
134 | let xs = m1 tin in | |
135 | if null xs | |
136 | then m2 tin | |
137 | else xs | |
138 | *) | |
139 | (* opti? use set instead of list *) | |
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140 | let l1 = m1 tin in |
141 | let l2 = m2 tin in | |
142 | if l2 = [] then l1 else l1 ++ l2 (*a small benefit; avoid a trivial @*) | |
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143 | |
144 | ||
ae4735db | 145 | let return res = fun tin -> |
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146 | [res, tin.binding] |
147 | ||
ae4735db | 148 | let fail = fun tin -> |
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149 | [] |
150 | ||
ae4735db | 151 | let (>&&>) f m = fun tin -> |
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152 | if f tin |
153 | then m tin | |
154 | else fail tin | |
155 | ||
156 | ||
485bce71 | 157 | let mode = Cocci_vs_c.PatternMode |
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158 | |
159 | (* ------------------------------------------------------------------------*) | |
ae4735db | 160 | (* Exp *) |
34e49164 | 161 | (* ------------------------------------------------------------------------*) |
ae4735db | 162 | let cocciExp = fun expf expa node -> fun tin -> |
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163 | |
164 | let globals = ref [] in | |
ae4735db | 165 | let bigf = { |
34e49164 | 166 | (* julia's style *) |
ae4735db | 167 | Visitor_c.default_visitor_c with |
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168 | Visitor_c.kexpr = (fun (k, bigf) expb -> |
169 | match expf expa expb tin with | |
170 | | [] -> (* failed *) k expb | |
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171 | | xs -> |
172 | globals := xs @ !globals; | |
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173 | if not !Flag_engine.disallow_nested_exps then k expb (* CHOICE *) |
174 | ); | |
175 | (* pad's style. | |
176 | * push2 expr globals; k expr | |
177 | * ... | |
ae4735db | 178 | * !globals +> List.fold_left (fun acc e -> acc >||> match_e_e expr e) |
34e49164 | 179 | * (return false) |
ae4735db | 180 | * |
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181 | *) |
182 | } | |
183 | in | |
184 | Visitor_c.vk_node bigf node; | |
ae4735db | 185 | !globals +> List.map (fun ((a, _exp), binding) -> |
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186 | (a, node), binding |
187 | ) | |
188 | ||
189 | (* same as cocciExp, but for expressions in an expression, not expressions | |
190 | in a node *) | |
ae4735db | 191 | let cocciExpExp = fun expf expa expb -> fun tin -> |
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192 | |
193 | let globals = ref [] in | |
ae4735db | 194 | let bigf = { |
34e49164 | 195 | (* julia's style *) |
ae4735db | 196 | Visitor_c.default_visitor_c with |
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197 | Visitor_c.kexpr = (fun (k, bigf) expb -> |
198 | match expf expa expb tin with | |
199 | | [] -> (* failed *) k expb | |
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200 | | xs -> |
201 | globals := xs @ !globals; | |
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202 | if not !Flag_engine.disallow_nested_exps then k expb (* CHOICE *) |
203 | ); | |
204 | (* pad's style. | |
205 | * push2 expr globals; k expr | |
206 | * ... | |
ae4735db | 207 | * !globals +> List.fold_left (fun acc e -> acc >||> match_e_e expr e) |
34e49164 | 208 | * (return false) |
ae4735db | 209 | * |
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210 | *) |
211 | } | |
212 | in | |
213 | Visitor_c.vk_expr bigf expb; | |
ae4735db | 214 | !globals +> List.map (fun ((a, _exp), binding) -> |
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215 | (a, expb), binding |
216 | ) | |
217 | ||
ae4735db | 218 | let cocciTy = fun expf expa node -> fun tin -> |
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219 | |
220 | let globals = ref [] in | |
ae4735db C |
221 | let bigf = { |
222 | Visitor_c.default_visitor_c with | |
223 | Visitor_c.ktype = (fun (k, bigf) expb -> | |
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224 | match expf expa expb tin with |
225 | | [] -> (* failed *) k expb | |
226 | | xs -> globals := xs @ !globals); | |
227 | ||
ae4735db | 228 | } |
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229 | in |
230 | Visitor_c.vk_node bigf node; | |
ae4735db | 231 | !globals +> List.map (fun ((a, _exp), binding) -> |
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232 | (a, node), binding |
233 | ) | |
234 | ||
ae4735db | 235 | let cocciInit = fun expf expa node -> fun tin -> |
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236 | |
237 | let globals = ref [] in | |
ae4735db C |
238 | let bigf = { |
239 | Visitor_c.default_visitor_c with | |
240 | Visitor_c.kini = (fun (k, bigf) expb -> | |
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241 | match expf expa expb tin with |
242 | | [] -> (* failed *) k expb | |
243 | | xs -> globals := xs @ !globals); | |
244 | ||
ae4735db | 245 | } |
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246 | in |
247 | Visitor_c.vk_node bigf node; | |
ae4735db | 248 | !globals +> List.map (fun ((a, _exp), binding) -> |
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249 | (a, node), binding |
250 | ) | |
251 | ||
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252 | |
253 | (* ------------------------------------------------------------------------*) | |
ae4735db | 254 | (* Distribute mcode *) |
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255 | (* ------------------------------------------------------------------------*) |
256 | let tag_mck_pos mck posmck = | |
ae4735db | 257 | match mck with |
951c7801 | 258 | | Ast_cocci.PLUS c -> Ast_cocci.PLUS c |
ae4735db | 259 | | Ast_cocci.CONTEXT (pos, xs) -> |
b1b2de81 | 260 | assert (pos =*= Ast_cocci.NoPos || pos =*= Ast_cocci.DontCarePos); |
34e49164 | 261 | Ast_cocci.CONTEXT (posmck, xs) |
ae4735db | 262 | | Ast_cocci.MINUS (pos, inst, adj, xs) -> |
b1b2de81 | 263 | assert (pos =*= Ast_cocci.NoPos || pos =*= Ast_cocci.DontCarePos); |
708f4980 | 264 | Ast_cocci.MINUS (posmck, inst, adj, xs) |
34e49164 | 265 | |
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266 | |
267 | let tag_mck_pos_mcode (x,info,mck,pos) posmck stuff = fun tin -> | |
34e49164 | 268 | [((x, info, tag_mck_pos mck posmck, pos),stuff), tin.binding] |
ae4735db | 269 | |
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270 | |
271 | let distrf (ii_of_x_f) = | |
ae4735db | 272 | fun mcode x -> fun tin -> |
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273 | let (max, min) = Lib_parsing_c.max_min_by_pos (ii_of_x_f x) |
274 | in | |
ae4735db | 275 | let posmck = Ast_cocci.FixPos (min, max) (* subtil: and not max, min !!*) |
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276 | in |
277 | tag_mck_pos_mcode mcode posmck x tin | |
278 | ||
413ffc02 C |
279 | let distrf_e = distrf (Lib_parsing_c.ii_of_expr) |
280 | let distrf_args = distrf (Lib_parsing_c.ii_of_args) | |
281 | let distrf_type = distrf (Lib_parsing_c.ii_of_type) | |
282 | let distrf_param = distrf (Lib_parsing_c.ii_of_param) | |
34e49164 | 283 | let distrf_params = distrf (Lib_parsing_c.ii_of_params) |
413ffc02 | 284 | let distrf_ini = distrf (Lib_parsing_c.ii_of_ini) |
c491d8ee | 285 | let distrf_inis = distrf (Lib_parsing_c.ii_of_inis) |
413ffc02 C |
286 | let distrf_decl = distrf (Lib_parsing_c.ii_of_decl) |
287 | let distrf_field = distrf (Lib_parsing_c.ii_of_field) | |
34e49164 | 288 | let distrf_node = distrf (Lib_parsing_c.ii_of_node) |
c491d8ee | 289 | let distrf_enum_fields = distrf (Lib_parsing_c.ii_of_enum_fields) |
413ffc02 C |
290 | let distrf_struct_fields = distrf (Lib_parsing_c.ii_of_struct_fields) |
291 | let distrf_cst = distrf (Lib_parsing_c.ii_of_cst) | |
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292 | let distrf_define_params = distrf (Lib_parsing_c.ii_of_define_params) |
293 | ||
294 | ||
295 | (* ------------------------------------------------------------------------*) | |
951c7801 | 296 | (* Constraints on metavariable values *) |
34e49164 | 297 | (* ------------------------------------------------------------------------*) |
951c7801 C |
298 | let check_idconstraint matcher c id = fun f tin -> |
299 | if matcher c id then | |
300 | (* success *) | |
301 | f () tin | |
302 | else | |
303 | (* failure *) | |
304 | fail tin | |
305 | ||
306 | let check_constraints_ne matcher constraints exp = fun f tin -> | |
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307 | let rec loop = function |
308 | [] -> f () tin (* success *) | |
309 | | c::cs -> | |
310 | match matcher c exp tin with | |
311 | [] (* failure *) -> loop cs | |
312 | | _ (* success *) -> fail tin in | |
313 | loop constraints | |
314 | ||
315 | let check_pos_constraints constraints pvalu f tin = | |
951c7801 | 316 | check_constraints_ne |
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317 | (fun c exp tin -> |
318 | let success = [[]] in | |
319 | let failure = [] in | |
1be43e12 C |
320 | (* relies on the fact that constraints on pos variables must refer to |
321 | inherited variables *) | |
322 | (match Common.optionise (fun () -> tin.binding0 +> List.assoc c) with | |
34e49164 | 323 | Some valu' -> |
978fd7e5 | 324 | if Cocci_vs_c.equal_inh_metavarval exp valu' |
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325 | then success else failure |
326 | | None -> | |
327 | (* if the variable is not there, it puts no constraints *) | |
328 | (* not sure this is still useful *) | |
329 | failure)) | |
330 | constraints pvalu f tin | |
331 | ||
332 | (* ------------------------------------------------------------------------*) | |
ae4735db | 333 | (* Environment *) |
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334 | (* ------------------------------------------------------------------------*) |
335 | (* pre: if have declared a new metavar that hide another one, then | |
336 | * must be passed with a binding that deleted this metavar | |
ae4735db | 337 | * |
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338 | * Here we dont use the keep argument of julia. cf f(X,X), J'ai |
339 | * besoin de garder le X en interne, meme si julia s'en fout elle du | |
340 | * X et qu'elle a mis X a DontSaved. | |
341 | *) | |
342 | let check_add_metavars_binding strip _keep inherited = fun (k, valu) tin -> | |
1be43e12 C |
343 | if inherited |
344 | then | |
345 | match Common.optionise (fun () -> tin.binding0 +> List.assoc k) with | |
346 | | Some (valu') -> | |
978fd7e5 | 347 | if Cocci_vs_c.equal_inh_metavarval valu valu' |
1be43e12 C |
348 | then Some tin.binding |
349 | else None | |
350 | | None -> None | |
351 | else | |
352 | match Common.optionise (fun () -> tin.binding +> List.assoc k) with | |
353 | | Some (valu') -> | |
485bce71 | 354 | if Cocci_vs_c.equal_metavarval valu valu' |
1be43e12 C |
355 | then Some tin.binding |
356 | else None | |
ae4735db | 357 | |
1be43e12 | 358 | | None -> |
5636bb2c C |
359 | let success valu' = |
360 | Some (tin.binding +> Common.insert_assoc (k, valu')) in | |
361 | (match valu with | |
362 | Ast_c.MetaIdVal (a,c) -> | |
363 | (* c is a negated constraint *) | |
364 | let rec loop = function | |
365 | [] -> success(Ast_c.MetaIdVal(a,[])) | |
366 | | c::cs -> | |
367 | let tmp = | |
368 | Common.optionise | |
369 | (fun () -> tin.binding0 +> List.assoc c) in | |
370 | (match tmp with | |
371 | Some (Ast_c.MetaIdVal(v,_)) -> | |
372 | if a =$= v | |
373 | then None (* failure *) | |
374 | else success(Ast_c.MetaIdVal(a,[])) | |
375 | | Some _ -> failwith "Not possible" | |
376 | | None -> success(Ast_c.MetaIdVal(a,[]))) in | |
377 | loop c | |
378 | | Ast_c.MetaFuncVal a -> | |
379 | success(Ast_c.MetaFuncVal a) | |
380 | | Ast_c.MetaLocalFuncVal a -> | |
381 | success(Ast_c.MetaLocalFuncVal a) (*more?*) | |
382 | | Ast_c.MetaExprVal (a,c) -> | |
383 | (* c in the value is only to prepare for the future in which | |
384 | we figure out how to have subterm constraints on unbound | |
385 | variables. Now an environment will only contain expression | |
386 | values with empty constraints, as all constraints are | |
387 | resolved at binding time *) | |
388 | let stripped = | |
389 | if strip | |
390 | then Lib_parsing_c.al_expr a | |
391 | else Lib_parsing_c.semi_al_expr a in | |
392 | let inh_stripped = Lib_parsing_c.al_inh_expr a in | |
393 | let rec loop = function | |
394 | [] -> success(Ast_c.MetaExprVal(stripped,[])) | |
395 | | c::cs -> | |
396 | let tmp = | |
397 | Common.optionise | |
398 | (fun () -> tin.binding0 +> List.assoc c) in | |
399 | (match tmp with | |
400 | Some (Ast_c.MetaExprVal(v,_)) -> | |
401 | if C_vs_c.subexpression_of_expression inh_stripped v | |
402 | then loop cs (* forget satisfied constraints *) | |
403 | else None (* failure *) | |
404 | | Some _ -> failwith "not possible" | |
405 | (* fail if this should be a subterm of something that | |
406 | doesn't exist *) | |
407 | | None -> None) in | |
408 | loop c | |
409 | | Ast_c.MetaExprListVal a -> | |
410 | success | |
411 | (Ast_c.MetaExprListVal | |
412 | (if strip | |
413 | then Lib_parsing_c.al_arguments a | |
414 | else Lib_parsing_c.semi_al_arguments a)) | |
415 | ||
413ffc02 C |
416 | | Ast_c.MetaDeclVal a -> |
417 | success | |
418 | (Ast_c.MetaDeclVal | |
419 | (if strip | |
420 | then Lib_parsing_c.al_declaration a | |
421 | else Lib_parsing_c.semi_al_declaration a)) | |
422 | | Ast_c.MetaFieldVal a -> | |
423 | success | |
424 | (Ast_c.MetaFieldVal | |
425 | (if strip | |
426 | then Lib_parsing_c.al_field a | |
427 | else Lib_parsing_c.semi_al_field a)) | |
190f1acf C |
428 | | Ast_c.MetaFieldListVal a -> |
429 | success | |
430 | (Ast_c.MetaFieldListVal | |
431 | (if strip | |
432 | then Lib_parsing_c.al_fields a | |
433 | else Lib_parsing_c.semi_al_fields a)) | |
5636bb2c C |
434 | | Ast_c.MetaStmtVal a -> |
435 | success | |
436 | (Ast_c.MetaStmtVal | |
437 | (if strip | |
438 | then Lib_parsing_c.al_statement a | |
439 | else Lib_parsing_c.semi_al_statement a)) | |
440 | | Ast_c.MetaTypeVal a -> | |
441 | success | |
442 | (Ast_c.MetaTypeVal | |
443 | (if strip | |
444 | then Lib_parsing_c.al_type a | |
445 | else Lib_parsing_c.semi_al_type a)) | |
446 | ||
447 | | Ast_c.MetaInitVal a -> | |
448 | success | |
449 | (Ast_c.MetaInitVal | |
450 | (if strip | |
451 | then Lib_parsing_c.al_init a | |
452 | else Lib_parsing_c.semi_al_init a)) | |
453 | ||
8f657093 C |
454 | | Ast_c.MetaInitListVal a -> |
455 | success | |
456 | (Ast_c.MetaInitListVal | |
457 | (if strip | |
458 | then Lib_parsing_c.al_inits a | |
459 | else Lib_parsing_c.semi_al_inits a)) | |
460 | ||
5636bb2c C |
461 | | Ast_c.MetaListlenVal a -> success(Ast_c.MetaListlenVal a) |
462 | ||
463 | | Ast_c.MetaParamVal a -> | |
464 | success | |
465 | (Ast_c.MetaParamVal | |
466 | (if strip | |
467 | then Lib_parsing_c.al_param a | |
468 | else Lib_parsing_c.semi_al_param a)) | |
469 | | Ast_c.MetaParamListVal a -> | |
470 | success | |
471 | (Ast_c.MetaParamListVal | |
472 | (if strip | |
473 | then Lib_parsing_c.al_params a | |
474 | else Lib_parsing_c.semi_al_params a)) | |
475 | ||
476 | | Ast_c.MetaPosVal (pos1,pos2) -> | |
477 | success(Ast_c.MetaPosVal (pos1,pos2)) | |
478 | | Ast_c.MetaPosValList l -> success (Ast_c.MetaPosValList l)) | |
34e49164 | 479 | |
8f657093 C |
480 | let pos_variables tin ia get_pvalu finish = |
481 | match Ast_cocci.get_pos_var ia with | |
482 | [] -> finish tin | |
483 | | positions -> | |
484 | let pvalu = Ast_c.MetaPosValList(get_pvalu()) in | |
485 | let rec loop tin = function | |
486 | [] -> finish tin | |
487 | | Ast_cocci.MetaPos(name,constraints,per,keep,inherited) :: rest -> | |
488 | check_pos_constraints constraints pvalu | |
489 | (function () -> | |
490 | (* constraints are satisfied, now see if we are compatible | |
491 | with existing bindings *) | |
492 | function new_tin -> | |
493 | let x = Ast_cocci.unwrap_mcode name in | |
494 | let new_binding = | |
495 | check_add_metavars_binding false keep inherited | |
496 | (x, pvalu) tin in | |
497 | (match new_binding with | |
498 | Some binding -> loop {tin with binding = binding} rest | |
499 | | None -> fail tin)) | |
500 | tin in | |
501 | loop tin positions | |
502 | ||
34e49164 C |
503 | let envf keep inherited = fun (k, valu, get_max_min) f tin -> |
504 | let x = Ast_cocci.unwrap_mcode k in | |
505 | match check_add_metavars_binding true keep inherited (x, valu) tin with | |
506 | | Some binding -> | |
1be43e12 | 507 | let new_tin = {tin with binding = binding} in |
8f657093 C |
508 | pos_variables new_tin k |
509 | (function _ -> | |
510 | let (file,current_element,min,max) = get_max_min() in | |
511 | [(file,current_element,min,max)]) | |
512 | (f ()) | |
34e49164 C |
513 | | None -> fail tin |
514 | ||
515 | (* ------------------------------------------------------------------------*) | |
ae4735db | 516 | (* Environment, allbounds *) |
34e49164 C |
517 | (* ------------------------------------------------------------------------*) |
518 | (* all referenced inherited variables have to be bound. This would | |
519 | * be naturally checked for the minus or context ones in the | |
520 | * matching process, but have to check the plus ones as well. The | |
521 | * result of get_inherited contains all of these, but the potential | |
522 | * redundant checking for the minus and context ones is probably not | |
523 | * a big deal. If it's a problem, could fix free_vars to distinguish | |
524 | * between + variables and the other ones. *) | |
525 | ||
526 | let (all_bound : Ast_cocci.meta_name list -> tin -> bool) = fun l tin -> | |
ae4735db | 527 | l +> List.for_all (fun inhvar -> |
1be43e12 | 528 | match Common.optionise (fun () -> tin.binding0 +> List.assoc inhvar) with |
34e49164 C |
529 | | Some _ -> true |
530 | | None -> false | |
531 | ) | |
532 | ||
ae4735db | 533 | let optional_storage_flag f = fun tin -> |
34e49164 C |
534 | f (tin.extra.optional_storage_iso) tin |
535 | ||
ae4735db | 536 | let optional_qualifier_flag f = fun tin -> |
34e49164 C |
537 | f (tin.extra.optional_qualifier_iso) tin |
538 | ||
ae4735db | 539 | let value_format_flag f = fun tin -> |
34e49164 C |
540 | f (tin.extra.value_format_iso) tin |
541 | ||
5427db06 C |
542 | let optional_declarer_semicolon_flag f = fun tin -> |
543 | f (tin.extra.optional_declarer_semicolon_iso) tin | |
544 | ||
34e49164 | 545 | (* ------------------------------------------------------------------------*) |
ae4735db | 546 | (* Tokens *) |
34e49164 C |
547 | (* ------------------------------------------------------------------------*) |
548 | let tokenf ia ib = fun tin -> | |
549 | let pos = Ast_c.info_to_fixpos ib in | |
550 | let posmck = Ast_cocci.FixPos (pos, pos) in | |
551 | let finish tin = tag_mck_pos_mcode ia posmck ib tin in | |
8f657093 C |
552 | pos_variables tin ia (function _ -> [Lib_parsing_c.lin_col_by_pos [ib]]) |
553 | finish | |
554 | ||
ae4735db | 555 | let tokenf_mck mck ib = fun tin -> |
34e49164 C |
556 | let pos = Ast_c.info_to_fixpos ib in |
557 | let posmck = Ast_cocci.FixPos (pos, pos) in | |
558 | [(tag_mck_pos mck posmck, ib), tin.binding] | |
ae4735db | 559 | |
34e49164 C |
560 | end |
561 | ||
562 | (*****************************************************************************) | |
ae4735db | 563 | (* Entry point *) |
34e49164 | 564 | (*****************************************************************************) |
485bce71 | 565 | module MATCH = Cocci_vs_c.COCCI_VS_C (XMATCH) |
34e49164 C |
566 | |
567 | ||
ae4735db | 568 | let match_re_node2 dropped_isos a b binding0 = |
34e49164 | 569 | |
ae4735db | 570 | let tin = { |
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571 | XMATCH.extra = { |
572 | optional_storage_iso = not(List.mem "optional_storage" dropped_isos); | |
573 | optional_qualifier_iso = not(List.mem "optional_qualifier" dropped_isos); | |
574 | value_format_iso = not(List.mem "value_format" dropped_isos); | |
5427db06 C |
575 | optional_declarer_semicolon_iso = |
576 | not(List.mem "optional_declarer_semicolon" dropped_isos); | |
34e49164 | 577 | }; |
1be43e12 C |
578 | XMATCH.binding = []; |
579 | XMATCH.binding0 = binding0; | |
34e49164 C |
580 | } in |
581 | ||
582 | MATCH.rule_elem_node a b tin | |
583 | (* take only the tagged-SP, the 'a' *) | |
584 | +> List.map (fun ((a,_b), binding) -> a, binding) | |
585 | ||
586 | ||
ae4735db C |
587 | let match_re_node a b c d = |
588 | Common.profile_code "Pattern3.match_re_node" | |
34e49164 | 589 | (fun () -> match_re_node2 a b c d) |