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9f8e26f4 | 1 | (* |
90aeb998 C |
2 | * Copyright 2010, INRIA, University of Copenhagen |
3 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix | |
4 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
5636bb2c C |
5 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix |
6 | * This file is part of Coccinelle. | |
7 | * | |
8 | * Coccinelle is free software: you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, according to version 2 of the License. | |
11 | * | |
12 | * Coccinelle is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
19 | * | |
20 | * The authors reserve the right to distribute this or future versions of | |
21 | * Coccinelle under other licenses. | |
22 | *) | |
23 | ||
24 | ||
34e49164 C |
25 | module Ast = Ast_cocci |
26 | module V = Visitor_ast | |
27 | ||
28 | let disjmult2 e1 e2 k = | |
29 | List.concat | |
30 | (List.map (function e1 -> List.map (function e2 -> k e1 e2) e2) e1) | |
31 | ||
32 | let disjmult3 e1 e2 e3 k = | |
33 | List.concat | |
34 | (List.map | |
35 | (function e1 -> | |
36 | List.concat | |
37 | (List.map | |
38 | (function e2 -> List.map (function e3 -> k e1 e2 e3) e3) | |
39 | e2)) | |
40 | e1) | |
41 | ||
42 | let rec disjmult f = function | |
43 | [] -> [[]] | |
44 | | x::xs -> | |
45 | let cur = f x in | |
46 | let rest = disjmult f xs in | |
47 | disjmult2 cur rest (function cur -> function rest -> cur :: rest) | |
48 | ||
49 | let disjoption f = function | |
50 | None -> [None] | |
51 | | Some x -> List.map (function x -> Some x) (f x) | |
52 | ||
53 | let disjdots f d = | |
54 | match Ast.unwrap d with | |
55 | Ast.DOTS(l) -> | |
56 | List.map (function l -> Ast.rewrap d (Ast.DOTS(l))) (disjmult f l) | |
57 | | Ast.CIRCLES(l) -> | |
58 | List.map (function l -> Ast.rewrap d (Ast.CIRCLES(l))) (disjmult f l) | |
59 | | Ast.STARS(l) -> | |
60 | List.map (function l -> Ast.rewrap d (Ast.STARS(l))) (disjmult f l) | |
61 | ||
62 | let rec disjty ft = | |
63 | match Ast.unwrap ft with | |
64 | Ast.Type(cv,ty) -> | |
65 | let ty = disjtypeC ty in | |
66 | List.map (function ty -> Ast.rewrap ft (Ast.Type(cv,ty))) ty | |
67 | | Ast.DisjType(types) -> List.concat (List.map disjty types) | |
68 | | Ast.OptType(ty) -> | |
69 | let ty = disjty ty in | |
70 | List.map (function ty -> Ast.rewrap ft (Ast.OptType(ty))) ty | |
71 | | Ast.UniqueType(ty) -> | |
72 | let ty = disjty ty in | |
73 | List.map (function ty -> Ast.rewrap ft (Ast.UniqueType(ty))) ty | |
74 | ||
75 | and disjtypeC bty = | |
76 | match Ast.unwrap bty with | |
faf9a90c | 77 | Ast.BaseType(_) | Ast.SignedT(_,_) -> [bty] |
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78 | | Ast.Pointer(ty,star) -> |
79 | let ty = disjty ty in | |
80 | List.map (function ty -> Ast.rewrap bty (Ast.Pointer(ty,star))) ty | |
81 | | Ast.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2) -> | |
82 | let ty = disjty ty in | |
83 | List.map | |
84 | (function ty -> | |
85 | Ast.rewrap bty (Ast.FunctionPointer(ty,lp1,star,rp1,lp2,params,rp2))) | |
86 | ty | |
87 | | Ast.FunctionType (s,ty,lp1,params,rp1) -> | |
88 | let ty = disjoption disjty ty in | |
89 | List.map | |
90 | (function ty -> | |
91 | Ast.rewrap bty (Ast.FunctionType (s,ty,lp1,params,rp1))) | |
92 | ty | |
93 | | Ast.Array(ty,lb,size,rb) -> | |
94 | disjmult2 (disjty ty) (disjoption disjexp size) | |
95 | (function ty -> function size -> | |
96 | Ast.rewrap bty (Ast.Array(ty,lb,size,rb))) | |
faf9a90c | 97 | | Ast.EnumName(_,_) | Ast.StructUnionName(_,_) -> [bty] |
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98 | | Ast.StructUnionDef(ty,lb,decls,rb) -> |
99 | disjmult2 (disjty ty) (disjdots disjdecl decls) | |
100 | (function ty -> function decls -> | |
101 | Ast.rewrap bty (Ast.StructUnionDef(ty,lb,decls,rb))) | |
102 | | Ast.TypeName(_) | Ast.MetaType(_,_,_) -> [bty] | |
103 | ||
104 | and disjexp e = | |
105 | match Ast.unwrap e with | |
106 | Ast.Ident(_) | Ast.Constant(_) -> [e] | |
107 | | Ast.FunCall(fn,lp,args,rp) -> | |
108 | disjmult2 (disjexp fn) (disjdots disjexp args) | |
109 | (function fn -> function args -> | |
110 | Ast.rewrap e (Ast.FunCall(fn,lp,args,rp))) | |
111 | | Ast.Assignment(left,op,right,simple) -> | |
112 | disjmult2 (disjexp left) (disjexp right) | |
113 | (function left -> function right -> | |
114 | Ast.rewrap e (Ast.Assignment(left,op,right,simple))) | |
115 | | Ast.CondExpr(exp1,why,Some exp2,colon,exp3) -> | |
116 | let res = disjmult disjexp [exp1;exp2;exp3] in | |
117 | List.map | |
118 | (function | |
119 | [exp1;exp2;exp3] -> | |
120 | Ast.rewrap e (Ast.CondExpr(exp1,why,Some exp2,colon,exp3)) | |
121 | | _ -> failwith "not possible") | |
122 | res | |
123 | | Ast.CondExpr(exp1,why,None,colon,exp3) -> | |
124 | disjmult2 (disjexp exp1) (disjexp exp3) | |
125 | (function exp1 -> function exp3 -> | |
126 | Ast.rewrap e (Ast.CondExpr(exp1,why,None,colon,exp3))) | |
127 | | Ast.Postfix(exp,op) -> | |
128 | let exp = disjexp exp in | |
129 | List.map (function exp -> Ast.rewrap e (Ast.Postfix(exp,op))) exp | |
130 | | Ast.Infix(exp,op) -> | |
131 | let exp = disjexp exp in | |
132 | List.map (function exp -> Ast.rewrap e (Ast.Infix(exp,op))) exp | |
133 | | Ast.Unary(exp,op) -> | |
134 | let exp = disjexp exp in | |
135 | List.map (function exp -> Ast.rewrap e (Ast.Unary(exp,op))) exp | |
136 | | Ast.Binary(left,op,right) -> | |
137 | disjmult2 (disjexp left) (disjexp right) | |
138 | (function left -> function right -> | |
139 | Ast.rewrap e (Ast.Binary(left,op,right))) | |
140 | | Ast.Nested(exp,op,right) -> | |
141 | (* disj not possible in right *) | |
142 | let exp = disjexp exp in | |
143 | List.map (function exp -> Ast.rewrap e (Ast.Nested(exp,op,right))) exp | |
144 | | Ast.Paren(lp,exp,rp) -> | |
145 | let exp = disjexp exp in | |
146 | List.map (function exp -> Ast.rewrap e (Ast.Paren(lp,exp,rp))) exp | |
147 | | Ast.ArrayAccess(exp1,lb,exp2,rb) -> | |
148 | disjmult2 (disjexp exp1) (disjexp exp2) | |
149 | (function exp1 -> function exp2 -> | |
150 | Ast.rewrap e (Ast.ArrayAccess(exp1,lb,exp2,rb))) | |
151 | | Ast.RecordAccess(exp,pt,field) -> | |
152 | let exp = disjexp exp in | |
153 | List.map | |
154 | (function exp -> Ast.rewrap e (Ast.RecordAccess(exp,pt,field))) exp | |
155 | | Ast.RecordPtAccess(exp,ar,field) -> | |
156 | let exp = disjexp exp in | |
157 | List.map | |
158 | (function exp -> Ast.rewrap e (Ast.RecordPtAccess(exp,ar,field))) exp | |
159 | | Ast.Cast(lp,ty,rp,exp) -> | |
160 | disjmult2 (disjty ty) (disjexp exp) | |
161 | (function ty -> function exp -> Ast.rewrap e (Ast.Cast(lp,ty,rp,exp))) | |
162 | | Ast.SizeOfExpr(szf,exp) -> | |
163 | let exp = disjexp exp in | |
164 | List.map (function exp -> Ast.rewrap e (Ast.SizeOfExpr(szf,exp))) exp | |
165 | | Ast.SizeOfType(szf,lp,ty,rp) -> | |
166 | let ty = disjty ty in | |
167 | List.map | |
168 | (function ty -> Ast.rewrap e (Ast.SizeOfType(szf,lp,ty,rp))) ty | |
169 | | Ast.TypeExp(ty) -> | |
170 | let ty = disjty ty in | |
171 | List.map (function ty -> Ast.rewrap e (Ast.TypeExp(ty))) ty | |
172 | | Ast.MetaErr(_,_,_,_) | Ast.MetaExpr(_,_,_,_,_,_) | |
173 | | Ast.MetaExprList(_,_,_,_) | Ast.EComma(_) -> [e] | |
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174 | | Ast.DisjExpr(exp_list) -> |
175 | List.concat (List.map disjexp exp_list) | |
5636bb2c | 176 | | Ast.NestExpr(starter,expr_dots,ender,whencode,multi) -> |
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177 | (* not sure what to do here, so ambiguities still possible *) |
178 | [e] | |
179 | | Ast.Edots(dots,_) | Ast.Ecircles(dots,_) | Ast.Estars(dots,_) -> [e] | |
180 | | Ast.OptExp(exp) -> | |
181 | let exp = disjexp exp in | |
182 | List.map (function exp -> Ast.rewrap e (Ast.OptExp(exp))) exp | |
183 | | Ast.UniqueExp(exp) -> | |
184 | let exp = disjexp exp in | |
185 | List.map (function exp -> Ast.rewrap e (Ast.UniqueExp(exp))) exp | |
186 | ||
187 | and disjparam p = | |
188 | match Ast.unwrap p with | |
189 | Ast.VoidParam(ty) -> [p] (* void is the only possible value *) | |
190 | | Ast.Param(ty,id) -> | |
191 | let ty = disjty ty in | |
192 | List.map (function ty -> Ast.rewrap p (Ast.Param(ty,id))) ty | |
193 | | Ast.MetaParam(_,_,_) | Ast.MetaParamList(_,_,_,_) | Ast.PComma(_) -> [p] | |
194 | | Ast.Pdots(dots) | Ast.Pcircles(dots) -> [p] | |
195 | | Ast.OptParam(param) -> | |
196 | let param = disjparam param in | |
197 | List.map (function param -> Ast.rewrap p (Ast.OptParam(param))) param | |
198 | | Ast.UniqueParam(param) -> | |
199 | let param = disjparam param in | |
200 | List.map (function param -> Ast.rewrap p (Ast.UniqueParam(param))) param | |
201 | ||
202 | and disjini i = | |
203 | match Ast.unwrap i with | |
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204 | Ast.MetaInit(_,_,_) -> [i] |
205 | | Ast.InitExpr(exp) -> | |
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206 | let exp = disjexp exp in |
207 | List.map (function exp -> Ast.rewrap i (Ast.InitExpr(exp))) exp | |
90aeb998 | 208 | | Ast.InitList(allminus,lb,initlist,rb,whencode) -> |
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209 | List.map |
210 | (function initlist -> | |
90aeb998 | 211 | Ast.rewrap i (Ast.InitList(allminus,lb,initlist,rb,whencode))) |
34e49164 | 212 | (disjmult disjini initlist) |
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213 | | Ast.InitGccExt(designators,eq,ini) -> |
214 | let designators = disjmult designator designators in | |
34e49164 | 215 | let ini = disjini ini in |
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216 | disjmult2 designators ini |
217 | (function designators -> function ini -> | |
218 | Ast.rewrap i (Ast.InitGccExt(designators,eq,ini))) | |
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219 | | Ast.InitGccName(name,eq,ini) -> |
220 | let ini = disjini ini in | |
221 | List.map | |
222 | (function ini -> Ast.rewrap i (Ast.InitGccName(name,eq,ini))) | |
223 | ini | |
34e49164 | 224 | | Ast.IComma(comma) -> [i] |
faf9a90c | 225 | | Ast.OptIni(ini) -> |
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226 | let ini = disjini ini in |
227 | List.map (function ini -> Ast.rewrap i (Ast.OptIni(ini))) ini | |
faf9a90c | 228 | | Ast.UniqueIni(ini) -> |
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229 | let ini = disjini ini in |
230 | List.map (function ini -> Ast.rewrap i (Ast.UniqueIni(ini))) ini | |
231 | ||
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232 | and designator = function |
233 | Ast.DesignatorField(dot,id) -> [Ast.DesignatorField(dot,id)] | |
234 | | Ast.DesignatorIndex(lb,exp,rb) -> | |
235 | let exp = disjexp exp in | |
236 | List.map (function exp -> Ast.DesignatorIndex(lb,exp,rb)) exp | |
237 | | Ast.DesignatorRange(lb,min,dots,max,rb) -> | |
238 | disjmult2 (disjexp min) (disjexp max) | |
239 | (function min -> function max -> | |
240 | Ast.DesignatorRange(lb,min,dots,max,rb)) | |
241 | ||
34e49164 C |
242 | and disjdecl d = |
243 | match Ast.unwrap d with | |
244 | Ast.Init(stg,ty,id,eq,ini,sem) -> | |
245 | disjmult2 (disjty ty) (disjini ini) | |
246 | (function ty -> function ini -> | |
247 | Ast.rewrap d (Ast.Init(stg,ty,id,eq,ini,sem))) | |
248 | | Ast.UnInit(stg,ty,id,sem) -> | |
249 | let ty = disjty ty in | |
250 | List.map (function ty -> Ast.rewrap d (Ast.UnInit(stg,ty,id,sem))) ty | |
251 | | Ast.MacroDecl(name,lp,args,rp,sem) -> | |
252 | List.map | |
253 | (function args -> Ast.rewrap d (Ast.MacroDecl(name,lp,args,rp,sem))) | |
254 | (disjdots disjexp args) | |
255 | | Ast.TyDecl(ty,sem) -> | |
256 | let ty = disjty ty in | |
257 | List.map (function ty -> Ast.rewrap d (Ast.TyDecl(ty,sem))) ty | |
258 | | Ast.Typedef(stg,ty,id,sem) -> | |
259 | let ty = disjty ty in (* disj not allowed in id *) | |
260 | List.map (function ty -> Ast.rewrap d (Ast.Typedef(stg,ty,id,sem))) ty | |
261 | | Ast.DisjDecl(decls) -> List.concat (List.map disjdecl decls) | |
262 | | Ast.Ddots(_,_) | Ast.MetaDecl(_,_,_) -> [d] | |
263 | | Ast.OptDecl(decl) -> | |
264 | let decl = disjdecl decl in | |
265 | List.map (function decl -> Ast.rewrap d (Ast.OptDecl(decl))) decl | |
266 | | Ast.UniqueDecl(decl) -> | |
267 | let decl = disjdecl decl in | |
268 | List.map (function decl -> Ast.rewrap d (Ast.UniqueDecl(decl))) decl | |
269 | ||
270 | let generic_orify_rule_elem f re exp rebuild = | |
271 | match f exp with | |
272 | [exp] -> re | |
ae4735db | 273 | | orexps -> Ast.rewrap re (Ast.DisjRuleElem (List.map rebuild orexps)) |
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274 | |
275 | let orify_rule_elem re exp rebuild = | |
276 | generic_orify_rule_elem disjexp re exp rebuild | |
277 | ||
278 | let orify_rule_elem_ty = generic_orify_rule_elem disjty | |
279 | let orify_rule_elem_param = generic_orify_rule_elem disjparam | |
280 | let orify_rule_elem_decl = generic_orify_rule_elem disjdecl | |
1be43e12 | 281 | let orify_rule_elem_ini = generic_orify_rule_elem disjini |
34e49164 | 282 | |
fc1ad971 | 283 | let rec disj_rule_elem r k re = |
faf9a90c | 284 | match Ast.unwrap re with |
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285 | Ast.FunHeader(bef,allminus,fninfo,name,lp,params,rp) -> |
286 | generic_orify_rule_elem (disjdots disjparam) re params | |
287 | (function params -> | |
288 | Ast.rewrap re | |
289 | (Ast.FunHeader(bef,allminus,fninfo,name,lp,params,rp))) | |
290 | | Ast.Decl(bef,allminus,decl) -> | |
291 | orify_rule_elem_decl re decl | |
292 | (function decl -> Ast.rewrap re (Ast.Decl(bef,allminus,decl))) | |
293 | | Ast.SeqStart(brace) -> re | |
294 | | Ast.SeqEnd(brace) -> re | |
295 | | Ast.ExprStatement(exp,sem) -> | |
296 | orify_rule_elem re exp | |
297 | (function exp -> Ast.rewrap re (Ast.ExprStatement(exp,sem))) | |
298 | | Ast.IfHeader(iff,lp,exp,rp) -> | |
299 | orify_rule_elem re exp | |
300 | (function exp -> Ast.rewrap re (Ast.IfHeader(iff,lp,exp,rp))) | |
301 | | Ast.Else(els) -> re | |
302 | | Ast.WhileHeader(whl,lp,exp,rp) -> | |
303 | orify_rule_elem re exp | |
304 | (function exp -> Ast.rewrap re (Ast.WhileHeader(whl,lp,exp,rp))) | |
305 | | Ast.DoHeader(d) -> re | |
306 | | Ast.WhileTail(whl,lp,exp,rp,sem) -> | |
307 | orify_rule_elem re exp | |
308 | (function exp -> Ast.rewrap re (Ast.WhileTail(whl,lp,exp,rp,sem))) | |
309 | | Ast.ForHeader(fr,lp,e1,sem1,e2,sem2,e3,rp) -> | |
310 | generic_orify_rule_elem (disjmult (disjoption disjexp)) re [e1;e2;e3] | |
311 | (function | |
312 | [exp1;exp2;exp3] -> | |
313 | Ast.rewrap re (Ast.ForHeader(fr,lp,exp1,sem1,exp2,sem2,exp3,rp)) | |
314 | | _ -> failwith "not possible") | |
315 | | Ast.IteratorHeader(whl,lp,args,rp) -> | |
316 | generic_orify_rule_elem (disjdots disjexp) re args | |
317 | (function args -> Ast.rewrap re (Ast.IteratorHeader(whl,lp,args,rp))) | |
318 | | Ast.SwitchHeader(switch,lp,exp,rp) -> | |
319 | orify_rule_elem re exp | |
320 | (function exp -> Ast.rewrap re (Ast.SwitchHeader(switch,lp,exp,rp))) | |
321 | | Ast.Break(_,_) | Ast.Continue(_,_) | Ast.Label(_,_) | Ast.Goto(_,_,_) | |
322 | | Ast.Return(_,_) -> re | |
323 | | Ast.ReturnExpr(ret,exp,sem) -> | |
324 | orify_rule_elem re exp | |
325 | (function exp -> Ast.rewrap re (Ast.ReturnExpr(ret,exp,sem))) | |
326 | | Ast.MetaRuleElem(_,_,_) | Ast.MetaStmt(_,_,_,_) | |
327 | | Ast.MetaStmtList(_,_,_) -> re | |
328 | | Ast.Exp(exp) -> | |
329 | orify_rule_elem re exp (function exp -> Ast.rewrap exp (Ast.Exp(exp))) | |
330 | | Ast.TopExp(exp) -> | |
331 | orify_rule_elem re exp (function exp -> Ast.rewrap exp (Ast.TopExp(exp))) | |
332 | | Ast.Ty(ty) -> | |
333 | orify_rule_elem_ty re ty (function ty -> Ast.rewrap ty (Ast.Ty(ty))) | |
1be43e12 C |
334 | | Ast.TopInit(init) -> |
335 | orify_rule_elem_ini re init | |
336 | (function init -> Ast.rewrap init (Ast.TopInit(init))) | |
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337 | | Ast.Include(inc,s) -> re |
338 | | Ast.DefineHeader(def,id,params) -> re | |
339 | | Ast.Default(def,colon) -> re | |
340 | | Ast.Case(case,exp,colon) -> | |
341 | orify_rule_elem re exp | |
342 | (function exp -> Ast.rewrap re (Ast.Case(case,exp,colon))) | |
fc1ad971 C |
343 | | Ast.DisjRuleElem(l) -> |
344 | (* only case lines *) | |
ae4735db | 345 | Ast.rewrap re(Ast.DisjRuleElem(List.map (disj_rule_elem r k) l)) |
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346 | |
347 | let disj_all = | |
348 | let mcode x = x in | |
349 | let donothing r k e = k e in | |
350 | V.rebuilder | |
351 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode | |
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352 | donothing donothing donothing donothing |
353 | donothing donothing donothing donothing donothing donothing donothing | |
354 | disj_rule_elem donothing donothing donothing donothing | |
355 | ||
356 | (* ----------------------------------------------------------------------- *) | |
357 | (* collect iso information at the rule_elem level *) | |
358 | ||
359 | let collect_all_isos = | |
360 | let bind = (@) in | |
361 | let option_default = [] in | |
362 | let mcode r x = [] in | |
363 | let donothing r k e = Common.union_set (Ast.get_isos e) (k e) in | |
364 | let doanything r k e = k e in | |
365 | V.combiner bind option_default | |
366 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode | |
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367 | donothing donothing donothing donothing donothing donothing donothing |
368 | donothing donothing donothing donothing donothing donothing donothing | |
369 | donothing doanything | |
370 | ||
371 | let collect_iso_info = | |
372 | let mcode x = x in | |
373 | let donothing r k e = k e in | |
374 | let rule_elem r k e = | |
375 | match Ast.unwrap e with | |
376 | Ast.DisjRuleElem(l) -> k e | |
377 | | _ -> | |
378 | let isos = collect_all_isos.V.combiner_rule_elem e in | |
379 | Ast.set_isos e isos in | |
380 | V.rebuilder | |
381 | mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode mcode | |
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382 | donothing donothing donothing donothing donothing donothing donothing |
383 | donothing donothing donothing donothing rule_elem donothing donothing | |
384 | donothing donothing | |
385 | ||
386 | (* ----------------------------------------------------------------------- *) | |
387 | ||
388 | let disj rules = | |
389 | List.map | |
390 | (function (mv,r) -> | |
391 | match r with | |
b1b2de81 C |
392 | Ast.ScriptRule _ |
393 | | Ast.InitialScriptRule _ | Ast.FinalScriptRule _ -> (mv, r) | |
faf9a90c C |
394 | | Ast.CocciRule (nm, rule_info, r, isexp, ruletype) -> |
395 | let res = | |
396 | List.map | |
397 | (function x -> | |
398 | let res = disj_all.V.rebuilder_top_level x in | |
399 | if !Flag.track_iso_usage | |
400 | then collect_iso_info.V.rebuilder_top_level res | |
401 | else res) | |
402 | r in | |
403 | (mv, Ast.CocciRule (nm,rule_info,res,isexp,ruletype))) | |
34e49164 | 404 | rules |