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1 | (* |
2 | * Copyright 2005-2008, Ecole des Mines de Nantes, University of Copenhagen | |
3 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller | |
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 Ast = Ast_cocci | |
24 | ||
25 | (* --------------------------------------------------------------------- *) | |
26 | (* Modified code *) | |
27 | ||
28 | type arity = OPT | UNIQUE | NONE | |
29 | ||
30 | type token_info = | |
31 | { tline_start : int; tline_end : int; | |
32 | left_offset : int; right_offset : int } | |
33 | let default_token_info = | |
34 | { tline_start = -1; tline_end = -1; left_offset = -1; right_offset = -1 } | |
35 | ||
36 | (* MIXED is like CONTEXT, since sometimes MIXED things have to revert to | |
37 | CONTEXT - see insert_plus.ml *) | |
38 | type mcodekind = | |
39 | MINUS of (Ast.anything list list * token_info) ref | |
40 | | PLUS | |
41 | | CONTEXT of (Ast.anything Ast.befaft * token_info * token_info) ref | |
42 | | MIXED of (Ast.anything Ast.befaft * token_info * token_info) ref | |
43 | ||
44 | type info = { line_start : int; line_end : int; | |
45 | logical_start : int; logical_end : int; | |
46 | attachable_start : bool; attachable_end : bool; | |
47 | mcode_start : mcodekind list; mcode_end : mcodekind list; | |
48 | column : int; offset : int; | |
49 | (* the following are only for + code *) | |
50 | strings_before : string list; strings_after : string list } | |
51 | ||
52 | type 'a mcode = 'a * arity * info * mcodekind * meta_pos ref (* pos, - only *) | |
53 | (* int ref is an index *) | |
54 | and 'a wrap = | |
55 | { node : 'a; | |
56 | info : info; | |
57 | index : int ref; | |
58 | mcodekind : mcodekind ref; | |
59 | exp_ty : Type_cocci.typeC option ref; (* only for expressions *) | |
60 | bef_aft : dots_bef_aft; (* only for statements *) | |
61 | true_if_arg : bool; (* true if "arg_exp", only for exprs *) | |
62 | true_if_test : bool; (* true if "test position", only for exprs *) | |
63 | true_if_test_exp : bool;(* true if "test_exp from iso", only for exprs *) | |
64 | (*nonempty if this represents the use of an iso*) | |
65 | iso_info : (string*anything) list } | |
66 | ||
67 | and dots_bef_aft = | |
68 | NoDots | AddingBetweenDots of statement | DroppingBetweenDots of statement | |
69 | ||
70 | (* for iso metavariables, true if they can only match nonmodified terms with | |
71 | all metavariables unitary | |
72 | for SP metavariables, true if the metavariable is unitary (valid up to | |
73 | isomorphism phase only) | |
74 | In SP, the only options are impure and context | |
75 | *) | |
76 | and pure = Impure | Pure | Context | PureContext (* pure and only context *) | |
77 | ||
78 | (* --------------------------------------------------------------------- *) | |
79 | (* --------------------------------------------------------------------- *) | |
80 | (* Dots *) | |
81 | ||
82 | and 'a base_dots = | |
83 | DOTS of 'a list | |
84 | | CIRCLES of 'a list | |
85 | | STARS of 'a list | |
86 | ||
87 | and 'a dots = 'a base_dots wrap | |
88 | ||
89 | (* --------------------------------------------------------------------- *) | |
90 | (* Identifier *) | |
91 | ||
92 | and base_ident = | |
93 | Id of string mcode | |
94 | | MetaId of Ast.meta_name mcode * ident list * pure | |
95 | | MetaFunc of Ast.meta_name mcode * ident list * pure | |
96 | | MetaLocalFunc of Ast.meta_name mcode * ident list * pure | |
97 | | OptIdent of ident | |
98 | | UniqueIdent of ident | |
99 | ||
100 | and ident = base_ident wrap | |
101 | ||
102 | (* --------------------------------------------------------------------- *) | |
103 | (* Expression *) | |
104 | ||
105 | and base_expression = | |
106 | Ident of ident | |
107 | | Constant of Ast.constant mcode | |
108 | | FunCall of expression * string mcode (* ( *) * | |
109 | expression dots * string mcode (* ) *) | |
110 | | Assignment of expression * Ast.assignOp mcode * expression * | |
111 | bool (* true if it can match an initialization *) | |
112 | | CondExpr of expression * string mcode (* ? *) * expression option * | |
113 | string mcode (* : *) * expression | |
114 | | Postfix of expression * Ast.fixOp mcode | |
115 | | Infix of expression * Ast.fixOp mcode | |
116 | | Unary of expression * Ast.unaryOp mcode | |
117 | | Binary of expression * Ast.binaryOp mcode * expression | |
118 | | Nested of expression * Ast.binaryOp mcode * expression | |
119 | | Paren of string mcode (* ( *) * expression * | |
120 | string mcode (* ) *) | |
121 | | ArrayAccess of expression * string mcode (* [ *) * expression * | |
122 | string mcode (* ] *) | |
123 | | RecordAccess of expression * string mcode (* . *) * ident | |
124 | | RecordPtAccess of expression * string mcode (* -> *) * ident | |
125 | | Cast of string mcode (* ( *) * typeC * string mcode (* ) *) * | |
126 | expression | |
127 | | SizeOfExpr of string mcode (* sizeof *) * expression | |
128 | | SizeOfType of string mcode (* sizeof *) * string mcode (* ( *) * | |
129 | typeC * string mcode (* ) *) | |
130 | | TypeExp of typeC (* type name used as an expression, only in args *) | |
131 | | MetaErr of Ast.meta_name mcode * expression list * pure | |
132 | | MetaExpr of Ast.meta_name mcode * expression list * | |
133 | Type_cocci.typeC list option * Ast.form * pure | |
134 | | MetaExprList of Ast.meta_name mcode (* only in arg lists *) * | |
135 | listlen * pure | |
136 | | EComma of string mcode (* only in arg lists *) | |
137 | | DisjExpr of string mcode * expression list * | |
138 | string mcode list (* the |s *) * string mcode | |
139 | | NestExpr of string mcode * expression dots * string mcode * | |
140 | expression option * Ast.multi | |
141 | | Edots of string mcode (* ... *) * expression option | |
142 | | Ecircles of string mcode (* ooo *) * expression option | |
143 | | Estars of string mcode (* *** *) * expression option | |
144 | | OptExp of expression | |
145 | | UniqueExp of expression | |
146 | ||
147 | and expression = base_expression wrap | |
148 | ||
149 | and listlen = Ast.meta_name mcode option | |
150 | ||
151 | (* --------------------------------------------------------------------- *) | |
152 | (* Types *) | |
153 | ||
154 | and base_typeC = | |
155 | ConstVol of Ast.const_vol mcode * typeC | |
156 | | BaseType of Ast.baseType mcode * Ast.sign mcode option | |
157 | | ImplicitInt of Ast.sign mcode | |
158 | | Pointer of typeC * string mcode (* * *) | |
159 | | FunctionPointer of typeC * | |
160 | string mcode(* ( *)*string mcode(* * *)*string mcode(* ) *)* | |
161 | string mcode (* ( *)*parameter_list*string mcode(* ) *) | |
162 | | FunctionType of typeC option * | |
163 | string mcode (* ( *) * parameter_list * | |
164 | string mcode (* ) *) | |
165 | | Array of typeC * string mcode (* [ *) * | |
166 | expression option * string mcode (* ] *) | |
167 | | StructUnionName of Ast.structUnion mcode * ident option (* name *) | |
168 | | StructUnionDef of typeC (* either StructUnionName or metavar *) * | |
169 | string mcode (* { *) * declaration dots * string mcode (* } *) | |
170 | | TypeName of string mcode | |
171 | | MetaType of Ast.meta_name mcode * pure | |
172 | | DisjType of string mcode * typeC list * (* only after iso *) | |
173 | string mcode list (* the |s *) * string mcode | |
174 | | OptType of typeC | |
175 | | UniqueType of typeC | |
176 | ||
177 | and typeC = base_typeC wrap | |
178 | ||
179 | (* --------------------------------------------------------------------- *) | |
180 | (* Variable declaration *) | |
181 | (* Even if the Cocci program specifies a list of declarations, they are | |
182 | split out into multiple declarations of a single variable each. *) | |
183 | ||
184 | and base_declaration = | |
185 | Init of Ast.storage mcode option * typeC * ident * string mcode (*=*) * | |
186 | initialiser * string mcode (*;*) | |
187 | | UnInit of Ast.storage mcode option * typeC * ident * string mcode (* ; *) | |
188 | | TyDecl of typeC * string mcode (* ; *) | |
189 | | MacroDecl of ident (* name *) * string mcode (* ( *) * | |
190 | expression dots * string mcode (* ) *) * string mcode (* ; *) | |
191 | | Typedef of string mcode (* typedef *) * typeC * typeC * string mcode (*;*) | |
192 | | DisjDecl of string mcode * declaration list * | |
193 | string mcode list (* the |s *) * string mcode | |
194 | (* Ddots is for a structure declaration *) | |
195 | | Ddots of string mcode (* ... *) * declaration option (* whencode *) | |
196 | | OptDecl of declaration | |
197 | | UniqueDecl of declaration | |
198 | ||
199 | and declaration = base_declaration wrap | |
200 | ||
201 | (* --------------------------------------------------------------------- *) | |
202 | (* Initializers *) | |
203 | ||
204 | and base_initialiser = | |
205 | InitExpr of expression | |
206 | | InitList of string mcode (*{*) * initialiser_list * string mcode (*}*) | |
207 | | InitGccDotName of | |
208 | string mcode (*.*) * ident (* name *) * string mcode (*=*) * | |
209 | initialiser (* gccext: *) | |
210 | | InitGccName of ident (* name *) * string mcode (*:*) * | |
211 | initialiser | |
212 | | InitGccIndex of | |
213 | string mcode (*[*) * expression * string mcode (*]*) * | |
214 | string mcode (*=*) * initialiser | |
215 | | InitGccRange of | |
216 | string mcode (*[*) * expression * string mcode (*...*) * | |
217 | expression * string mcode (*]*) * string mcode (*=*) * initialiser | |
218 | | IComma of string mcode (* , *) | |
219 | | Idots of string mcode (* ... *) * initialiser option (* whencode *) | |
220 | | OptIni of initialiser | |
221 | | UniqueIni of initialiser | |
222 | ||
223 | and initialiser = base_initialiser wrap | |
224 | ||
225 | and initialiser_list = initialiser dots | |
226 | ||
227 | (* --------------------------------------------------------------------- *) | |
228 | (* Parameter *) | |
229 | ||
230 | and base_parameterTypeDef = | |
231 | VoidParam of typeC | |
232 | | Param of typeC * ident option | |
233 | | MetaParam of Ast.meta_name mcode * pure | |
234 | | MetaParamList of Ast.meta_name mcode * listlen * pure | |
235 | | PComma of string mcode | |
236 | | Pdots of string mcode (* ... *) | |
237 | | Pcircles of string mcode (* ooo *) | |
238 | | OptParam of parameterTypeDef | |
239 | | UniqueParam of parameterTypeDef | |
240 | ||
241 | and parameterTypeDef = base_parameterTypeDef wrap | |
242 | ||
243 | and parameter_list = parameterTypeDef dots | |
244 | ||
245 | (* --------------------------------------------------------------------- *) | |
246 | (* #define Parameters *) | |
247 | ||
248 | and base_define_param = | |
249 | DParam of ident | |
250 | | DPComma of string mcode | |
251 | | DPdots of string mcode (* ... *) | |
252 | | DPcircles of string mcode (* ooo *) | |
253 | | OptDParam of define_param | |
254 | | UniqueDParam of define_param | |
255 | ||
256 | and define_param = base_define_param wrap | |
257 | ||
258 | and base_define_parameters = | |
259 | NoParams | |
260 | | DParams of string mcode(*( *) * define_param dots * string mcode(* )*) | |
261 | ||
262 | and define_parameters = base_define_parameters wrap | |
263 | ||
264 | (* --------------------------------------------------------------------- *) | |
265 | (* Statement*) | |
266 | ||
267 | and base_statement = | |
268 | Decl of (info * mcodekind) (* before the decl *) * declaration | |
269 | | Seq of string mcode (* { *) * statement dots * | |
270 | string mcode (* } *) | |
271 | | ExprStatement of expression * string mcode (*;*) | |
272 | | IfThen of string mcode (* if *) * string mcode (* ( *) * | |
273 | expression * string mcode (* ) *) * | |
274 | statement * (info * mcodekind) (* after info *) | |
275 | | IfThenElse of string mcode (* if *) * string mcode (* ( *) * | |
276 | expression * string mcode (* ) *) * | |
277 | statement * string mcode (* else *) * statement * | |
278 | (info * mcodekind) | |
279 | | While of string mcode (* while *) * string mcode (* ( *) * | |
280 | expression * string mcode (* ) *) * | |
281 | statement * (info * mcodekind) (* after info *) | |
282 | | Do of string mcode (* do *) * statement * | |
283 | string mcode (* while *) * string mcode (* ( *) * | |
284 | expression * string mcode (* ) *) * | |
285 | string mcode (* ; *) | |
286 | | For of string mcode (* for *) * string mcode (* ( *) * | |
287 | expression option * string mcode (*;*) * | |
288 | expression option * string mcode (*;*) * | |
289 | expression option * string mcode (* ) *) * statement * | |
290 | (info * mcodekind) (* after info *) | |
291 | | Iterator of ident (* name *) * string mcode (* ( *) * | |
292 | expression dots * string mcode (* ) *) * | |
293 | statement * (info * mcodekind) (* after info *) | |
294 | | Switch of string mcode (* switch *) * string mcode (* ( *) * | |
295 | expression * string mcode (* ) *) * string mcode (* { *) * | |
296 | case_line dots * string mcode (* } *) | |
297 | | Break of string mcode (* break *) * string mcode (* ; *) | |
298 | | Continue of string mcode (* continue *) * string mcode (* ; *) | |
299 | | Label of ident * string mcode (* : *) | |
300 | | Goto of string mcode (* goto *) * ident * string mcode (* ; *) | |
301 | | Return of string mcode (* return *) * string mcode (* ; *) | |
302 | | ReturnExpr of string mcode (* return *) * expression * | |
303 | string mcode (* ; *) | |
304 | | MetaStmt of Ast.meta_name mcode * pure | |
305 | | MetaStmtList of Ast.meta_name mcode(*only in statement lists*) * pure | |
306 | | Exp of expression (* only in dotted statement lists *) | |
307 | | TopExp of expression (* for macros body *) | |
308 | | Ty of typeC (* only at top level *) | |
1be43e12 | 309 | | TopInit of initialiser (* only at top level *) |
34e49164 C |
310 | | Disj of string mcode * statement dots list * |
311 | string mcode list (* the |s *) * string mcode | |
312 | | Nest of string mcode * statement dots * string mcode * | |
313 | (statement dots,statement) whencode list * Ast.multi | |
314 | | Dots of string mcode (* ... *) * | |
315 | (statement dots,statement) whencode list | |
316 | | Circles of string mcode (* ooo *) * | |
317 | (statement dots,statement) whencode list | |
318 | | Stars of string mcode (* *** *) * | |
319 | (statement dots,statement) whencode list | |
320 | | FunDecl of (info * mcodekind) (* before the function decl *) * | |
321 | fninfo list * ident (* name *) * | |
322 | string mcode (* ( *) * parameter_list * string mcode (* ) *) * | |
323 | string mcode (* { *) * statement dots * | |
324 | string mcode (* } *) | |
325 | | Include of string mcode (* #include *) * Ast.inc_file mcode (* file *) | |
326 | | Define of string mcode (* #define *) * ident (* name *) * | |
327 | define_parameters (*params*) * statement dots | |
328 | | OptStm of statement | |
329 | | UniqueStm of statement | |
330 | ||
331 | and fninfo = | |
332 | FStorage of Ast.storage mcode | |
333 | | FType of typeC | |
334 | | FInline of string mcode | |
335 | | FAttr of string mcode | |
336 | ||
337 | and ('a,'b) whencode = | |
338 | WhenNot of 'a | |
339 | | WhenAlways of 'b | |
340 | | WhenModifier of Ast.when_modifier | |
1be43e12 C |
341 | | WhenNotTrue of expression |
342 | | WhenNotFalse of expression | |
34e49164 C |
343 | |
344 | and statement = base_statement wrap | |
345 | ||
346 | and base_case_line = | |
347 | Default of string mcode (* default *) * string mcode (*:*) * statement dots | |
348 | | Case of string mcode (* case *) * expression * string mcode (*:*) * | |
349 | statement dots | |
350 | | OptCase of case_line | |
351 | ||
352 | and case_line = base_case_line wrap | |
353 | ||
354 | (* --------------------------------------------------------------------- *) | |
355 | (* Positions *) | |
356 | ||
357 | and meta_pos = | |
358 | MetaPos of Ast.meta_name mcode * Ast.meta_name list * Ast.meta_collect | |
359 | | NoMetaPos | |
360 | ||
361 | (* --------------------------------------------------------------------- *) | |
362 | (* Top-level code *) | |
363 | ||
364 | and base_top_level = | |
365 | DECL of statement | |
366 | | CODE of statement dots | |
367 | | FILEINFO of string mcode (* old file *) * string mcode (* new file *) | |
368 | | ERRORWORDS of expression list | |
369 | | OTHER of statement (* temporary, disappears after top_level.ml *) | |
370 | ||
371 | and top_level = base_top_level wrap | |
372 | and rule = top_level list | |
373 | ||
374 | and parsed_rule = | |
375 | CocciRule of | |
376 | (rule * Ast.metavar list * | |
377 | (string list * string list * Ast.dependency * string * Ast.exists)) * | |
378 | (rule * Ast.metavar list) | |
379 | | ScriptRule of | |
380 | string * Ast.dependency * (string * Ast.meta_name) list * string | |
381 | ||
382 | (* --------------------------------------------------------------------- *) | |
383 | ||
384 | and anything = | |
385 | DotsExprTag of expression dots | |
386 | | DotsInitTag of initialiser dots | |
387 | | DotsParamTag of parameterTypeDef dots | |
388 | | DotsStmtTag of statement dots | |
389 | | DotsDeclTag of declaration dots | |
390 | | DotsCaseTag of case_line dots | |
391 | | IdentTag of ident | |
392 | | ExprTag of expression | |
393 | | ArgExprTag of expression (* for isos *) | |
394 | | TestExprTag of expression (* for isos *) | |
395 | | TypeCTag of typeC | |
396 | | ParamTag of parameterTypeDef | |
397 | | InitTag of initialiser | |
398 | | DeclTag of declaration | |
399 | | StmtTag of statement | |
400 | | CaseLineTag of case_line | |
401 | | TopTag of top_level | |
402 | | IsoWhenTag of Ast.when_modifier | |
1be43e12 C |
403 | | IsoWhenTTag of expression |
404 | | IsoWhenFTag of expression | |
34e49164 C |
405 | | MetaPosTag of meta_pos |
406 | ||
407 | let dotsExpr x = DotsExprTag x | |
408 | let dotsParam x = DotsParamTag x | |
409 | let dotsInit x = DotsInitTag x | |
410 | let dotsStmt x = DotsStmtTag x | |
411 | let dotsDecl x = DotsDeclTag x | |
412 | let dotsCase x = DotsCaseTag x | |
413 | let ident x = IdentTag x | |
414 | let expr x = ExprTag x | |
415 | let typeC x = TypeCTag x | |
416 | let param x = ParamTag x | |
417 | let ini x = InitTag x | |
418 | let decl x = DeclTag x | |
419 | let stmt x = StmtTag x | |
420 | let case_line x = CaseLineTag x | |
421 | let top x = TopTag x | |
422 | ||
423 | (* --------------------------------------------------------------------- *) | |
424 | (* Avoid cluttering the parser. Calculated in compute_lines.ml. *) | |
425 | ||
426 | let default_info _ = (* why is this a function? *) | |
427 | { line_start = -1; line_end = -1; | |
428 | logical_start = -1; logical_end = -1; | |
429 | attachable_start = true; attachable_end = true; | |
430 | mcode_start = []; mcode_end = []; | |
431 | column = -1; offset = -1; strings_before = []; strings_after = [] } | |
432 | ||
433 | let default_befaft _ = | |
434 | MIXED(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
435 | let context_befaft _ = | |
436 | CONTEXT(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
437 | ||
438 | let wrap x = | |
439 | { node = x; | |
440 | info = default_info(); | |
441 | index = ref (-1); | |
442 | mcodekind = ref (default_befaft()); | |
443 | exp_ty = ref None; | |
444 | bef_aft = NoDots; | |
445 | true_if_arg = false; | |
446 | true_if_test = false; | |
447 | true_if_test_exp = false; | |
448 | iso_info = [] } | |
449 | let context_wrap x = | |
450 | { node = x; | |
451 | info = default_info(); | |
452 | index = ref (-1); | |
453 | mcodekind = ref (context_befaft()); | |
454 | exp_ty = ref None; | |
455 | bef_aft = NoDots; | |
456 | true_if_arg = false; | |
457 | true_if_test = false; | |
458 | true_if_test_exp = false; | |
459 | iso_info = [] } | |
460 | let unwrap x = x.node | |
461 | let unwrap_mcode (x,_,_,_,_) = x | |
462 | let rewrap model x = { model with node = x } | |
463 | let rewrap_mcode (_,arity,info,mcodekind,pos) x = (x,arity,info,mcodekind,pos) | |
464 | let copywrap model x = | |
465 | { model with node = x; index = ref !(model.index); | |
466 | mcodekind = ref !(model.mcodekind); exp_ty = ref !(model.exp_ty)} | |
467 | let get_pos (_,_,_,_,x) = !x | |
468 | let get_pos_ref (_,_,_,_,x) = x | |
469 | let set_pos pos (m,arity,info,mcodekind,_) = (m,arity,info,mcodekind,ref pos) | |
470 | let get_info x = x.info | |
471 | let set_info x info = {x with info = info} | |
472 | let get_line x = x.info.line_start | |
473 | let get_line_end x = x.info.line_end | |
474 | let get_index x = !(x.index) | |
475 | let set_index x i = x.index := i | |
476 | let get_mcodekind x = !(x.mcodekind) | |
477 | let get_mcode_mcodekind (_,_,_,mcodekind,_) = mcodekind | |
478 | let get_mcodekind_ref x = x.mcodekind | |
479 | let set_mcodekind x mk = x.mcodekind := mk | |
480 | let set_type x t = x.exp_ty := t | |
481 | let get_type x = !(x.exp_ty) | |
482 | let get_dots_bef_aft x = x.bef_aft | |
483 | let set_dots_bef_aft x dots_bef_aft = {x with bef_aft = dots_bef_aft} | |
484 | let get_arg_exp x = x.true_if_arg | |
485 | let set_arg_exp x = {x with true_if_arg = true} | |
486 | let get_test_pos x = x.true_if_test | |
487 | let set_test_pos x = {x with true_if_test = true} | |
488 | let get_test_exp x = x.true_if_test_exp | |
489 | let set_test_exp x = {x with true_if_test_exp = true} | |
490 | let get_iso x = x.iso_info | |
491 | let set_iso x i = if !Flag.track_iso_usage then {x with iso_info = i} else x | |
492 | let set_mcode_data data (_,ar,info,mc,pos) = (data,ar,info,mc,pos) | |
493 | ||
494 | (* --------------------------------------------------------------------- *) | |
495 | ||
496 | (* unique indices, for mcode and tree nodes *) | |
497 | let index_counter = ref 0 | |
498 | let fresh_index _ = let cur = !index_counter in index_counter := cur + 1; cur | |
499 | ||
500 | (* --------------------------------------------------------------------- *) | |
501 | ||
502 | let undots d = | |
503 | match unwrap d with | |
504 | | DOTS e -> e | |
505 | | CIRCLES e -> e | |
506 | | STARS e -> e | |
507 | ||
508 | (* --------------------------------------------------------------------- *) | |
509 | ||
510 | let rec ast0_type_to_type ty = | |
511 | match unwrap ty with | |
512 | ConstVol(cv,ty) -> Type_cocci.ConstVol(const_vol cv,ast0_type_to_type ty) | |
513 | | BaseType(bty,None) -> | |
514 | Type_cocci.BaseType(baseType bty,None) | |
515 | | BaseType(bty,Some sgn) -> | |
516 | Type_cocci.BaseType(baseType bty,Some (sign sgn)) | |
517 | | ImplicitInt(sgn) -> | |
518 | let bty = Type_cocci.IntType in | |
519 | Type_cocci.BaseType(bty,Some (sign sgn)) | |
520 | | Pointer(ty,_) -> Type_cocci.Pointer(ast0_type_to_type ty) | |
521 | | FunctionPointer(ty,_,_,_,_,params,_) -> | |
522 | Type_cocci.FunctionPointer(ast0_type_to_type ty) | |
523 | | FunctionType _ -> failwith "not supported" | |
524 | | Array(ety,_,_,_) -> Type_cocci.Array(ast0_type_to_type ety) | |
525 | | StructUnionName(su,Some tag) -> | |
526 | (match unwrap tag with | |
527 | Id(tag) -> | |
528 | Type_cocci.StructUnionName(structUnion su,false,unwrap_mcode tag) | |
529 | | MetaId(tag,_,_) -> | |
530 | (Printf.printf | |
531 | "warning: struct/union with a metavariable name detected.\n"; | |
532 | Printf.printf | |
533 | "For type checking assuming the name of the metavariable is the name of the type\n"; | |
534 | let (rule,tag) = unwrap_mcode tag in | |
535 | Type_cocci.StructUnionName(structUnion su,true,rule^tag)) | |
536 | | _ -> failwith "unexpected struct/union type name") | |
537 | | StructUnionName(su,None) -> failwith "nameless structure - what to do???" | |
538 | | StructUnionDef(ty,_,_,_) -> ast0_type_to_type ty | |
539 | | TypeName(name) -> Type_cocci.TypeName(unwrap_mcode name) | |
540 | | MetaType(name,_) -> | |
541 | Type_cocci.MetaType(unwrap_mcode name,Type_cocci.Unitary,false) | |
542 | | DisjType(_,types,_,_) -> failwith "unexpected DisjType" | |
543 | | OptType(ty) | UniqueType(ty) -> | |
544 | ast0_type_to_type ty | |
545 | ||
546 | and baseType t = | |
547 | match unwrap_mcode t with | |
548 | Ast.VoidType -> Type_cocci.VoidType | |
549 | | Ast.CharType -> Type_cocci.CharType | |
550 | | Ast.ShortType -> Type_cocci.ShortType | |
551 | | Ast.IntType -> Type_cocci.IntType | |
552 | | Ast.DoubleType -> Type_cocci.DoubleType | |
553 | | Ast.FloatType -> Type_cocci.FloatType | |
554 | | Ast.LongType -> Type_cocci.LongType | |
555 | ||
556 | and structUnion t = | |
557 | match unwrap_mcode t with | |
558 | Ast.Struct -> Type_cocci.Struct | |
559 | | Ast.Union -> Type_cocci.Union | |
560 | ||
561 | and sign t = | |
562 | match unwrap_mcode t with | |
563 | Ast.Signed -> Type_cocci.Signed | |
564 | | Ast.Unsigned -> Type_cocci.Unsigned | |
565 | ||
566 | and const_vol t = | |
567 | match unwrap_mcode t with | |
568 | Ast.Const -> Type_cocci.Const | |
569 | | Ast.Volatile -> Type_cocci.Volatile | |
570 | ||
571 | (* --------------------------------------------------------------------- *) | |
572 | (* this function is a rather minimal attempt. the problem is that information | |
573 | has been lost. but since it is only used for metavariable types in the isos, | |
574 | perhaps it doesn't matter *) | |
575 | let make_mcode x = (x,NONE,default_info(),context_befaft(),ref NoMetaPos) | |
576 | let make_mcode_info x info = (x,NONE,info,context_befaft(),ref NoMetaPos) | |
577 | ||
578 | exception TyConv | |
579 | ||
580 | let rec reverse_type ty = | |
581 | match ty with | |
582 | Type_cocci.ConstVol(cv,ty) -> | |
485bce71 | 583 | ConstVol(reverse_const_vol cv,context_wrap(reverse_type ty)) |
34e49164 C |
584 | | Type_cocci.BaseType(bty,None) -> |
585 | BaseType(reverse_baseType bty,None) | |
586 | | Type_cocci.BaseType(bty,Some sgn) -> | |
587 | BaseType(reverse_baseType bty,Some (reverse_sign sgn)) | |
588 | | Type_cocci.Pointer(ty) -> | |
485bce71 | 589 | Pointer(context_wrap(reverse_type ty),make_mcode "*") |
34e49164 C |
590 | | Type_cocci.StructUnionName(su,mv,tag) -> |
591 | if mv | |
592 | then | |
593 | (* not right... *) | |
485bce71 C |
594 | StructUnionName |
595 | (reverse_structUnion su, | |
596 | Some(context_wrap(MetaId(make_mcode ("",tag),[],Impure)))) | |
34e49164 | 597 | else |
485bce71 C |
598 | StructUnionName |
599 | (reverse_structUnion su, | |
600 | Some (context_wrap(Id(make_mcode tag)))) | |
34e49164 C |
601 | | Type_cocci.TypeName(name) -> TypeName(make_mcode name) |
602 | | Type_cocci.MetaType(name,_,_) -> | |
603 | MetaType(make_mcode name,Impure(*not really right*)) | |
604 | | _ -> raise TyConv | |
605 | ||
606 | and reverse_baseType t = | |
607 | make_mcode | |
608 | (match t with | |
609 | Type_cocci.VoidType -> Ast.VoidType | |
610 | | Type_cocci.CharType -> Ast.CharType | |
611 | | Type_cocci.BoolType -> Ast.IntType | |
612 | | Type_cocci.ShortType -> Ast.ShortType | |
613 | | Type_cocci.IntType -> Ast.IntType | |
614 | | Type_cocci.DoubleType -> Ast.DoubleType | |
615 | | Type_cocci.FloatType -> Ast.FloatType | |
616 | | Type_cocci.LongType -> Ast.LongType) | |
617 | ||
618 | and reverse_structUnion t = | |
619 | make_mcode | |
620 | (match t with | |
621 | Type_cocci.Struct -> Ast.Struct | |
622 | | Type_cocci.Union -> Ast.Union) | |
623 | ||
624 | and reverse_sign t = | |
625 | make_mcode | |
626 | (match t with | |
627 | Type_cocci.Signed -> Ast.Signed | |
628 | | Type_cocci.Unsigned -> Ast.Unsigned) | |
629 | ||
630 | and reverse_const_vol t = | |
631 | make_mcode | |
632 | (match t with | |
633 | Type_cocci.Const -> Ast.Const | |
634 | | Type_cocci.Volatile -> Ast.Volatile) | |
635 | ||
636 | (* --------------------------------------------------------------------- *) | |
637 | ||
638 | let lub_pure x y = | |
639 | match (x,y) with | |
640 | (Impure,_) | (_,Impure) -> Impure | |
641 | | (Pure,Context) | (Context,Pure) -> Impure | |
642 | | (Pure,_) | (_,Pure) -> Pure | |
643 | | (_,Context) | (Context,_) -> Context | |
644 | | _ -> PureContext | |
645 | ||
646 | (* --------------------------------------------------------------------- *) | |
647 | ||
648 | let rule_name = ref "" (* for the convenience of the parser *) |