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c491d8ee C |
1 | (* |
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 | |
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 | 25 | module Ast = Ast_cocci |
e6509c05 | 26 | module TC = Type_cocci |
34e49164 C |
27 | |
28 | (* --------------------------------------------------------------------- *) | |
29 | (* Modified code *) | |
30 | ||
31 | type arity = OPT | UNIQUE | NONE | |
32 | ||
33 | type token_info = | |
34 | { tline_start : int; tline_end : int; | |
35 | left_offset : int; right_offset : int } | |
36 | let default_token_info = | |
37 | { tline_start = -1; tline_end = -1; left_offset = -1; right_offset = -1 } | |
38 | ||
39 | (* MIXED is like CONTEXT, since sometimes MIXED things have to revert to | |
40 | CONTEXT - see insert_plus.ml *) | |
951c7801 C |
41 | type count = ONE (* + *) | MANY (* ++ *) |
42 | ||
34e49164 C |
43 | type mcodekind = |
44 | MINUS of (Ast.anything list list * token_info) ref | |
951c7801 | 45 | | PLUS of Ast.count |
34e49164 C |
46 | | CONTEXT of (Ast.anything Ast.befaft * token_info * token_info) ref |
47 | | MIXED of (Ast.anything Ast.befaft * token_info * token_info) ref | |
48 | ||
0708f913 C |
49 | type position_info = { line_start : int; line_end : int; |
50 | logical_start : int; logical_end : int; | |
51 | column : int; offset : int; } | |
52 | ||
53 | type info = { pos_info : position_info; | |
34e49164 C |
54 | attachable_start : bool; attachable_end : bool; |
55 | mcode_start : mcodekind list; mcode_end : mcodekind list; | |
34e49164 | 56 | (* the following are only for + code *) |
c3e37e97 C |
57 | strings_before : (Ast.added_string * position_info) list; |
58 | strings_after : (Ast.added_string * position_info) list } | |
34e49164 | 59 | |
708f4980 C |
60 | (* adjacency index is incremented when we skip over dots or nest delimiters |
61 | it is used in deciding how much to remove, when two adjacent code tokens are | |
62 | removed. *) | |
63 | type 'a mcode = | |
64 | 'a * arity * info * mcodekind * meta_pos ref (* pos, - only *) * | |
65 | int (* adjacency_index *) | |
34e49164 C |
66 | (* int ref is an index *) |
67 | and 'a wrap = | |
68 | { node : 'a; | |
69 | info : info; | |
70 | index : int ref; | |
71 | mcodekind : mcodekind ref; | |
e6509c05 | 72 | exp_ty : TC.typeC option ref; (* only for expressions *) |
34e49164 C |
73 | bef_aft : dots_bef_aft; (* only for statements *) |
74 | true_if_arg : bool; (* true if "arg_exp", only for exprs *) | |
75 | true_if_test : bool; (* true if "test position", only for exprs *) | |
76 | true_if_test_exp : bool;(* true if "test_exp from iso", only for exprs *) | |
77 | (*nonempty if this represents the use of an iso*) | |
78 | iso_info : (string*anything) list } | |
79 | ||
80 | and dots_bef_aft = | |
81 | NoDots | AddingBetweenDots of statement | DroppingBetweenDots of statement | |
82 | ||
83 | (* for iso metavariables, true if they can only match nonmodified terms with | |
84 | all metavariables unitary | |
85 | for SP metavariables, true if the metavariable is unitary (valid up to | |
86 | isomorphism phase only) | |
87 | In SP, the only options are impure and context | |
88 | *) | |
89 | and pure = Impure | Pure | Context | PureContext (* pure and only context *) | |
90 | ||
91 | (* --------------------------------------------------------------------- *) | |
92 | (* --------------------------------------------------------------------- *) | |
93 | (* Dots *) | |
94 | ||
95 | and 'a base_dots = | |
96 | DOTS of 'a list | |
97 | | CIRCLES of 'a list | |
98 | | STARS of 'a list | |
99 | ||
100 | and 'a dots = 'a base_dots wrap | |
101 | ||
102 | (* --------------------------------------------------------------------- *) | |
103 | (* Identifier *) | |
104 | ||
105 | and base_ident = | |
951c7801 C |
106 | Id of string mcode |
107 | | MetaId of Ast.meta_name mcode * Ast.idconstraint * pure | |
108 | | MetaFunc of Ast.meta_name mcode * Ast.idconstraint * pure | |
109 | | MetaLocalFunc of Ast.meta_name mcode * Ast.idconstraint * pure | |
34e49164 C |
110 | | OptIdent of ident |
111 | | UniqueIdent of ident | |
112 | ||
113 | and ident = base_ident wrap | |
114 | ||
115 | (* --------------------------------------------------------------------- *) | |
116 | (* Expression *) | |
117 | ||
faf9a90c | 118 | and base_expression = |
34e49164 C |
119 | Ident of ident |
120 | | Constant of Ast.constant mcode | |
121 | | FunCall of expression * string mcode (* ( *) * | |
122 | expression dots * string mcode (* ) *) | |
123 | | Assignment of expression * Ast.assignOp mcode * expression * | |
124 | bool (* true if it can match an initialization *) | |
125 | | CondExpr of expression * string mcode (* ? *) * expression option * | |
126 | string mcode (* : *) * expression | |
127 | | Postfix of expression * Ast.fixOp mcode | |
128 | | Infix of expression * Ast.fixOp mcode | |
129 | | Unary of expression * Ast.unaryOp mcode | |
130 | | Binary of expression * Ast.binaryOp mcode * expression | |
131 | | Nested of expression * Ast.binaryOp mcode * expression | |
132 | | Paren of string mcode (* ( *) * expression * | |
133 | string mcode (* ) *) | |
134 | | ArrayAccess of expression * string mcode (* [ *) * expression * | |
135 | string mcode (* ] *) | |
136 | | RecordAccess of expression * string mcode (* . *) * ident | |
137 | | RecordPtAccess of expression * string mcode (* -> *) * ident | |
138 | | Cast of string mcode (* ( *) * typeC * string mcode (* ) *) * | |
139 | expression | |
140 | | SizeOfExpr of string mcode (* sizeof *) * expression | |
141 | | SizeOfType of string mcode (* sizeof *) * string mcode (* ( *) * | |
142 | typeC * string mcode (* ) *) | |
143 | | TypeExp of typeC (* type name used as an expression, only in args *) | |
951c7801 C |
144 | | MetaErr of Ast.meta_name mcode * constraints * pure |
145 | | MetaExpr of Ast.meta_name mcode * constraints * | |
e6509c05 | 146 | TC.typeC list option * Ast.form * pure |
34e49164 C |
147 | | MetaExprList of Ast.meta_name mcode (* only in arg lists *) * |
148 | listlen * pure | |
149 | | EComma of string mcode (* only in arg lists *) | |
150 | | DisjExpr of string mcode * expression list * | |
151 | string mcode list (* the |s *) * string mcode | |
152 | | NestExpr of string mcode * expression dots * string mcode * | |
153 | expression option * Ast.multi | |
154 | | Edots of string mcode (* ... *) * expression option | |
155 | | Ecircles of string mcode (* ooo *) * expression option | |
156 | | Estars of string mcode (* *** *) * expression option | |
157 | | OptExp of expression | |
158 | | UniqueExp of expression | |
159 | ||
160 | and expression = base_expression wrap | |
161 | ||
951c7801 C |
162 | and constraints = |
163 | NoConstraint | |
5636bb2c | 164 | | NotIdCstrt of Ast.reconstraint |
951c7801 | 165 | | NotExpCstrt of expression list |
5636bb2c | 166 | | SubExpCstrt of Ast.meta_name list |
951c7801 | 167 | |
88e71198 C |
168 | and listlen = |
169 | MetaListLen of Ast.meta_name mcode | |
170 | | CstListLen of int | |
171 | | AnyListLen | |
34e49164 C |
172 | |
173 | (* --------------------------------------------------------------------- *) | |
174 | (* Types *) | |
175 | ||
faf9a90c | 176 | and base_typeC = |
34e49164 | 177 | ConstVol of Ast.const_vol mcode * typeC |
faf9a90c C |
178 | | BaseType of Ast.baseType * string mcode list |
179 | | Signed of Ast.sign mcode * typeC option | |
34e49164 C |
180 | | Pointer of typeC * string mcode (* * *) |
181 | | FunctionPointer of typeC * | |
182 | string mcode(* ( *)*string mcode(* * *)*string mcode(* ) *)* | |
183 | string mcode (* ( *)*parameter_list*string mcode(* ) *) | |
184 | | FunctionType of typeC option * | |
185 | string mcode (* ( *) * parameter_list * | |
186 | string mcode (* ) *) | |
187 | | Array of typeC * string mcode (* [ *) * | |
188 | expression option * string mcode (* ] *) | |
c491d8ee C |
189 | | EnumName of string mcode (*enum*) * ident option (* name *) |
190 | | EnumDef of typeC (* either StructUnionName or metavar *) * | |
191 | string mcode (* { *) * expression dots * string mcode (* } *) | |
34e49164 C |
192 | | StructUnionName of Ast.structUnion mcode * ident option (* name *) |
193 | | StructUnionDef of typeC (* either StructUnionName or metavar *) * | |
194 | string mcode (* { *) * declaration dots * string mcode (* } *) | |
195 | | TypeName of string mcode | |
196 | | MetaType of Ast.meta_name mcode * pure | |
197 | | DisjType of string mcode * typeC list * (* only after iso *) | |
198 | string mcode list (* the |s *) * string mcode | |
199 | | OptType of typeC | |
200 | | UniqueType of typeC | |
201 | ||
202 | and typeC = base_typeC wrap | |
203 | ||
204 | (* --------------------------------------------------------------------- *) | |
205 | (* Variable declaration *) | |
206 | (* Even if the Cocci program specifies a list of declarations, they are | |
207 | split out into multiple declarations of a single variable each. *) | |
208 | ||
209 | and base_declaration = | |
413ffc02 C |
210 | MetaDecl of Ast.meta_name mcode * pure (* variables *) |
211 | (* the following are kept separate from MetaDecls because ultimately | |
212 | they don't match the same thin at all. Consider whether there | |
213 | should be a separate type for fields, as in the C AST *) | |
214 | | MetaField of Ast.meta_name mcode * pure (* structure fields *) | |
215 | | Init of Ast.storage mcode option * typeC * ident * string mcode (*=*) * | |
34e49164 C |
216 | initialiser * string mcode (*;*) |
217 | | UnInit of Ast.storage mcode option * typeC * ident * string mcode (* ; *) | |
218 | | TyDecl of typeC * string mcode (* ; *) | |
219 | | MacroDecl of ident (* name *) * string mcode (* ( *) * | |
220 | expression dots * string mcode (* ) *) * string mcode (* ; *) | |
221 | | Typedef of string mcode (* typedef *) * typeC * typeC * string mcode (*;*) | |
222 | | DisjDecl of string mcode * declaration list * | |
223 | string mcode list (* the |s *) * string mcode | |
224 | (* Ddots is for a structure declaration *) | |
225 | | Ddots of string mcode (* ... *) * declaration option (* whencode *) | |
226 | | OptDecl of declaration | |
227 | | UniqueDecl of declaration | |
228 | ||
229 | and declaration = base_declaration wrap | |
230 | ||
231 | (* --------------------------------------------------------------------- *) | |
232 | (* Initializers *) | |
233 | ||
234 | and base_initialiser = | |
113803cf C |
235 | MetaInit of Ast.meta_name mcode * pure |
236 | | InitExpr of expression | |
c491d8ee C |
237 | | InitList of string mcode (*{*) * initialiser_list * string mcode (*}*) * |
238 | (* true if ordered, as for array, false if unordered, as for struct *) | |
239 | bool | |
113803cf C |
240 | | InitGccExt of |
241 | designator list (* name *) * string mcode (*=*) * | |
34e49164 C |
242 | initialiser (* gccext: *) |
243 | | InitGccName of ident (* name *) * string mcode (*:*) * | |
244 | initialiser | |
34e49164 C |
245 | | IComma of string mcode (* , *) |
246 | | Idots of string mcode (* ... *) * initialiser option (* whencode *) | |
247 | | OptIni of initialiser | |
248 | | UniqueIni of initialiser | |
249 | ||
113803cf C |
250 | and designator = |
251 | DesignatorField of string mcode (* . *) * ident | |
252 | | DesignatorIndex of string mcode (* [ *) * expression * string mcode (* ] *) | |
253 | | DesignatorRange of | |
254 | string mcode (* [ *) * expression * string mcode (* ... *) * | |
255 | expression * string mcode (* ] *) | |
256 | ||
34e49164 C |
257 | and initialiser = base_initialiser wrap |
258 | ||
259 | and initialiser_list = initialiser dots | |
260 | ||
261 | (* --------------------------------------------------------------------- *) | |
262 | (* Parameter *) | |
263 | ||
264 | and base_parameterTypeDef = | |
265 | VoidParam of typeC | |
266 | | Param of typeC * ident option | |
267 | | MetaParam of Ast.meta_name mcode * pure | |
268 | | MetaParamList of Ast.meta_name mcode * listlen * pure | |
269 | | PComma of string mcode | |
270 | | Pdots of string mcode (* ... *) | |
271 | | Pcircles of string mcode (* ooo *) | |
272 | | OptParam of parameterTypeDef | |
273 | | UniqueParam of parameterTypeDef | |
274 | ||
275 | and parameterTypeDef = base_parameterTypeDef wrap | |
276 | ||
277 | and parameter_list = parameterTypeDef dots | |
278 | ||
279 | (* --------------------------------------------------------------------- *) | |
280 | (* #define Parameters *) | |
281 | ||
282 | and base_define_param = | |
283 | DParam of ident | |
284 | | DPComma of string mcode | |
285 | | DPdots of string mcode (* ... *) | |
286 | | DPcircles of string mcode (* ooo *) | |
287 | | OptDParam of define_param | |
288 | | UniqueDParam of define_param | |
289 | ||
290 | and define_param = base_define_param wrap | |
291 | ||
292 | and base_define_parameters = | |
293 | NoParams | |
294 | | DParams of string mcode(*( *) * define_param dots * string mcode(* )*) | |
295 | ||
296 | and define_parameters = base_define_parameters wrap | |
297 | ||
298 | (* --------------------------------------------------------------------- *) | |
299 | (* Statement*) | |
300 | ||
301 | and base_statement = | |
302 | Decl of (info * mcodekind) (* before the decl *) * declaration | |
303 | | Seq of string mcode (* { *) * statement dots * | |
304 | string mcode (* } *) | |
305 | | ExprStatement of expression * string mcode (*;*) | |
306 | | IfThen of string mcode (* if *) * string mcode (* ( *) * | |
307 | expression * string mcode (* ) *) * | |
308 | statement * (info * mcodekind) (* after info *) | |
309 | | IfThenElse of string mcode (* if *) * string mcode (* ( *) * | |
310 | expression * string mcode (* ) *) * | |
311 | statement * string mcode (* else *) * statement * | |
312 | (info * mcodekind) | |
313 | | While of string mcode (* while *) * string mcode (* ( *) * | |
314 | expression * string mcode (* ) *) * | |
315 | statement * (info * mcodekind) (* after info *) | |
316 | | Do of string mcode (* do *) * statement * | |
317 | string mcode (* while *) * string mcode (* ( *) * | |
318 | expression * string mcode (* ) *) * | |
319 | string mcode (* ; *) | |
320 | | For of string mcode (* for *) * string mcode (* ( *) * | |
321 | expression option * string mcode (*;*) * | |
322 | expression option * string mcode (*;*) * | |
323 | expression option * string mcode (* ) *) * statement * | |
324 | (info * mcodekind) (* after info *) | |
325 | | Iterator of ident (* name *) * string mcode (* ( *) * | |
326 | expression dots * string mcode (* ) *) * | |
327 | statement * (info * mcodekind) (* after info *) | |
328 | | Switch of string mcode (* switch *) * string mcode (* ( *) * | |
329 | expression * string mcode (* ) *) * string mcode (* { *) * | |
fc1ad971 | 330 | statement (*decl*) dots * |
34e49164 C |
331 | case_line dots * string mcode (* } *) |
332 | | Break of string mcode (* break *) * string mcode (* ; *) | |
333 | | Continue of string mcode (* continue *) * string mcode (* ; *) | |
334 | | Label of ident * string mcode (* : *) | |
335 | | Goto of string mcode (* goto *) * ident * string mcode (* ; *) | |
336 | | Return of string mcode (* return *) * string mcode (* ; *) | |
337 | | ReturnExpr of string mcode (* return *) * expression * | |
338 | string mcode (* ; *) | |
339 | | MetaStmt of Ast.meta_name mcode * pure | |
340 | | MetaStmtList of Ast.meta_name mcode(*only in statement lists*) * pure | |
341 | | Exp of expression (* only in dotted statement lists *) | |
342 | | TopExp of expression (* for macros body *) | |
343 | | Ty of typeC (* only at top level *) | |
1be43e12 | 344 | | TopInit of initialiser (* only at top level *) |
34e49164 C |
345 | | Disj of string mcode * statement dots list * |
346 | string mcode list (* the |s *) * string mcode | |
347 | | Nest of string mcode * statement dots * string mcode * | |
348 | (statement dots,statement) whencode list * Ast.multi | |
349 | | Dots of string mcode (* ... *) * | |
350 | (statement dots,statement) whencode list | |
351 | | Circles of string mcode (* ooo *) * | |
352 | (statement dots,statement) whencode list | |
353 | | Stars of string mcode (* *** *) * | |
354 | (statement dots,statement) whencode list | |
355 | | FunDecl of (info * mcodekind) (* before the function decl *) * | |
356 | fninfo list * ident (* name *) * | |
357 | string mcode (* ( *) * parameter_list * string mcode (* ) *) * | |
358 | string mcode (* { *) * statement dots * | |
359 | string mcode (* } *) | |
360 | | Include of string mcode (* #include *) * Ast.inc_file mcode (* file *) | |
361 | | Define of string mcode (* #define *) * ident (* name *) * | |
362 | define_parameters (*params*) * statement dots | |
363 | | OptStm of statement | |
364 | | UniqueStm of statement | |
365 | ||
366 | and fninfo = | |
367 | FStorage of Ast.storage mcode | |
368 | | FType of typeC | |
369 | | FInline of string mcode | |
370 | | FAttr of string mcode | |
371 | ||
372 | and ('a,'b) whencode = | |
373 | WhenNot of 'a | |
374 | | WhenAlways of 'b | |
375 | | WhenModifier of Ast.when_modifier | |
1be43e12 C |
376 | | WhenNotTrue of expression |
377 | | WhenNotFalse of expression | |
34e49164 C |
378 | |
379 | and statement = base_statement wrap | |
380 | ||
381 | and base_case_line = | |
382 | Default of string mcode (* default *) * string mcode (*:*) * statement dots | |
383 | | Case of string mcode (* case *) * expression * string mcode (*:*) * | |
384 | statement dots | |
fc1ad971 C |
385 | | DisjCase of string mcode * case_line list * |
386 | string mcode list (* the |s *) * string mcode | |
34e49164 C |
387 | | OptCase of case_line |
388 | ||
389 | and case_line = base_case_line wrap | |
390 | ||
391 | (* --------------------------------------------------------------------- *) | |
392 | (* Positions *) | |
393 | ||
394 | and meta_pos = | |
395 | MetaPos of Ast.meta_name mcode * Ast.meta_name list * Ast.meta_collect | |
396 | | NoMetaPos | |
397 | ||
398 | (* --------------------------------------------------------------------- *) | |
399 | (* Top-level code *) | |
400 | ||
401 | and base_top_level = | |
402 | DECL of statement | |
403 | | CODE of statement dots | |
404 | | FILEINFO of string mcode (* old file *) * string mcode (* new file *) | |
405 | | ERRORWORDS of expression list | |
406 | | OTHER of statement (* temporary, disappears after top_level.ml *) | |
407 | ||
408 | and top_level = base_top_level wrap | |
409 | and rule = top_level list | |
410 | ||
411 | and parsed_rule = | |
412 | CocciRule of | |
413 | (rule * Ast.metavar list * | |
414 | (string list * string list * Ast.dependency * string * Ast.exists)) * | |
faf9a90c | 415 | (rule * Ast.metavar list) * Ast.ruletype |
174d1640 | 416 | | ScriptRule of string (* name *) * |
aba5c457 C |
417 | string * Ast.dependency * |
418 | (Ast.script_meta_name * Ast.meta_name * Ast.metavar) list * | |
413ffc02 | 419 | Ast.meta_name list (*script vars*) * |
174d1640 C |
420 | string |
421 | | InitialScriptRule of string (* name *) *string * Ast.dependency * string | |
422 | | FinalScriptRule of string (* name *) *string * Ast.dependency * string | |
34e49164 C |
423 | |
424 | (* --------------------------------------------------------------------- *) | |
425 | ||
426 | and anything = | |
427 | DotsExprTag of expression dots | |
428 | | DotsInitTag of initialiser dots | |
429 | | DotsParamTag of parameterTypeDef dots | |
430 | | DotsStmtTag of statement dots | |
431 | | DotsDeclTag of declaration dots | |
432 | | DotsCaseTag of case_line dots | |
433 | | IdentTag of ident | |
434 | | ExprTag of expression | |
435 | | ArgExprTag of expression (* for isos *) | |
436 | | TestExprTag of expression (* for isos *) | |
437 | | TypeCTag of typeC | |
438 | | ParamTag of parameterTypeDef | |
439 | | InitTag of initialiser | |
440 | | DeclTag of declaration | |
441 | | StmtTag of statement | |
442 | | CaseLineTag of case_line | |
443 | | TopTag of top_level | |
444 | | IsoWhenTag of Ast.when_modifier | |
1be43e12 C |
445 | | IsoWhenTTag of expression |
446 | | IsoWhenFTag of expression | |
34e49164 C |
447 | | MetaPosTag of meta_pos |
448 | ||
449 | let dotsExpr x = DotsExprTag x | |
450 | let dotsParam x = DotsParamTag x | |
451 | let dotsInit x = DotsInitTag x | |
452 | let dotsStmt x = DotsStmtTag x | |
453 | let dotsDecl x = DotsDeclTag x | |
454 | let dotsCase x = DotsCaseTag x | |
455 | let ident x = IdentTag x | |
456 | let expr x = ExprTag x | |
457 | let typeC x = TypeCTag x | |
458 | let param x = ParamTag x | |
459 | let ini x = InitTag x | |
460 | let decl x = DeclTag x | |
461 | let stmt x = StmtTag x | |
462 | let case_line x = CaseLineTag x | |
463 | let top x = TopTag x | |
464 | ||
465 | (* --------------------------------------------------------------------- *) | |
466 | (* Avoid cluttering the parser. Calculated in compute_lines.ml. *) | |
467 | ||
0708f913 | 468 | let pos_info = |
34e49164 C |
469 | { line_start = -1; line_end = -1; |
470 | logical_start = -1; logical_end = -1; | |
0708f913 C |
471 | column = -1; offset = -1; } |
472 | ||
473 | let default_info _ = (* why is this a function? *) | |
474 | { pos_info = pos_info; | |
34e49164 C |
475 | attachable_start = true; attachable_end = true; |
476 | mcode_start = []; mcode_end = []; | |
0708f913 | 477 | strings_before = []; strings_after = [] } |
34e49164 C |
478 | |
479 | let default_befaft _ = | |
480 | MIXED(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
481 | let context_befaft _ = | |
482 | CONTEXT(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
c491d8ee | 483 | let minus_befaft _ = MINUS(ref ([],default_token_info)) |
34e49164 C |
484 | |
485 | let wrap x = | |
486 | { node = x; | |
487 | info = default_info(); | |
488 | index = ref (-1); | |
489 | mcodekind = ref (default_befaft()); | |
490 | exp_ty = ref None; | |
491 | bef_aft = NoDots; | |
492 | true_if_arg = false; | |
493 | true_if_test = false; | |
494 | true_if_test_exp = false; | |
495 | iso_info = [] } | |
496 | let context_wrap x = | |
497 | { node = x; | |
498 | info = default_info(); | |
499 | index = ref (-1); | |
500 | mcodekind = ref (context_befaft()); | |
501 | exp_ty = ref None; | |
502 | bef_aft = NoDots; | |
503 | true_if_arg = false; | |
504 | true_if_test = false; | |
505 | true_if_test_exp = false; | |
506 | iso_info = [] } | |
507 | let unwrap x = x.node | |
708f4980 | 508 | let unwrap_mcode (x,_,_,_,_,_) = x |
34e49164 | 509 | let rewrap model x = { model with node = x } |
708f4980 C |
510 | let rewrap_mcode (_,arity,info,mcodekind,pos,adj) x = |
511 | (x,arity,info,mcodekind,pos,adj) | |
34e49164 C |
512 | let copywrap model x = |
513 | { model with node = x; index = ref !(model.index); | |
514 | mcodekind = ref !(model.mcodekind); exp_ty = ref !(model.exp_ty)} | |
708f4980 C |
515 | let get_pos (_,_,_,_,x,_) = !x |
516 | let get_pos_ref (_,_,_,_,x,_) = x | |
517 | let set_pos pos (m,arity,info,mcodekind,_,adj) = | |
518 | (m,arity,info,mcodekind,ref pos,adj) | |
34e49164 C |
519 | let get_info x = x.info |
520 | let set_info x info = {x with info = info} | |
0708f913 C |
521 | let get_line x = x.info.pos_info.line_start |
522 | let get_line_end x = x.info.pos_info.line_end | |
34e49164 C |
523 | let get_index x = !(x.index) |
524 | let set_index x i = x.index := i | |
525 | let get_mcodekind x = !(x.mcodekind) | |
708f4980 | 526 | let get_mcode_mcodekind (_,_,_,mcodekind,_,_) = mcodekind |
34e49164 C |
527 | let get_mcodekind_ref x = x.mcodekind |
528 | let set_mcodekind x mk = x.mcodekind := mk | |
529 | let set_type x t = x.exp_ty := t | |
530 | let get_type x = !(x.exp_ty) | |
531 | let get_dots_bef_aft x = x.bef_aft | |
532 | let set_dots_bef_aft x dots_bef_aft = {x with bef_aft = dots_bef_aft} | |
533 | let get_arg_exp x = x.true_if_arg | |
534 | let set_arg_exp x = {x with true_if_arg = true} | |
535 | let get_test_pos x = x.true_if_test | |
536 | let set_test_pos x = {x with true_if_test = true} | |
537 | let get_test_exp x = x.true_if_test_exp | |
538 | let set_test_exp x = {x with true_if_test_exp = true} | |
539 | let get_iso x = x.iso_info | |
540 | let set_iso x i = if !Flag.track_iso_usage then {x with iso_info = i} else x | |
708f4980 | 541 | let set_mcode_data data (_,ar,info,mc,pos,adj) = (data,ar,info,mc,pos,adj) |
34e49164 C |
542 | |
543 | (* --------------------------------------------------------------------- *) | |
544 | ||
545 | (* unique indices, for mcode and tree nodes *) | |
546 | let index_counter = ref 0 | |
547 | let fresh_index _ = let cur = !index_counter in index_counter := cur + 1; cur | |
548 | ||
549 | (* --------------------------------------------------------------------- *) | |
550 | ||
551 | let undots d = | |
552 | match unwrap d with | |
553 | | DOTS e -> e | |
554 | | CIRCLES e -> e | |
555 | | STARS e -> e | |
556 | ||
557 | (* --------------------------------------------------------------------- *) | |
558 | ||
559 | let rec ast0_type_to_type ty = | |
560 | match unwrap ty with | |
e6509c05 | 561 | ConstVol(cv,ty) -> TC.ConstVol(const_vol cv,ast0_type_to_type ty) |
faf9a90c | 562 | | BaseType(bty,strings) -> |
e6509c05 | 563 | TC.BaseType(baseType bty) |
faf9a90c | 564 | | Signed(sgn,None) -> |
e6509c05 | 565 | TC.SignedT(sign sgn,None) |
faf9a90c C |
566 | | Signed(sgn,Some ty) -> |
567 | let bty = ast0_type_to_type ty in | |
e6509c05 C |
568 | TC.SignedT(sign sgn,Some bty) |
569 | | Pointer(ty,_) -> TC.Pointer(ast0_type_to_type ty) | |
34e49164 | 570 | | FunctionPointer(ty,_,_,_,_,params,_) -> |
e6509c05 | 571 | TC.FunctionPointer(ast0_type_to_type ty) |
34e49164 | 572 | | FunctionType _ -> failwith "not supported" |
e6509c05 | 573 | | Array(ety,_,_,_) -> TC.Array(ast0_type_to_type ety) |
c491d8ee | 574 | | EnumName(su,Some tag) -> |
faf9a90c C |
575 | (match unwrap tag with |
576 | Id(tag) -> | |
e6509c05 | 577 | TC.EnumName(TC.Name(unwrap_mcode tag)) |
faf9a90c C |
578 | | MetaId(tag,_,_) -> |
579 | (Printf.printf | |
580 | "warning: enum with a metavariable name detected.\n"; | |
581 | Printf.printf | |
582 | "For type checking assuming the name of the metavariable is the name of the type\n"; | |
e6509c05 | 583 | TC.EnumName(TC.MV(unwrap_mcode tag,TC.Unitary,false))) |
faf9a90c | 584 | | _ -> failwith "unexpected enum type name") |
c491d8ee C |
585 | | EnumName(su,None) -> failwith "nameless enum - what to do???" |
586 | | EnumDef(ty,_,_,_) -> ast0_type_to_type ty | |
34e49164 C |
587 | | StructUnionName(su,Some tag) -> |
588 | (match unwrap tag with | |
589 | Id(tag) -> | |
e6509c05 C |
590 | TC.StructUnionName(structUnion su,TC.Name(unwrap_mcode tag)) |
591 | | MetaId(tag,Ast.IdNoConstraint,_) -> | |
978fd7e5 | 592 | (Common.pr2 |
34e49164 | 593 | "warning: struct/union with a metavariable name detected.\n"; |
978fd7e5 | 594 | Common.pr2 |
34e49164 | 595 | "For type checking assuming the name of the metavariable is the name of the type\n"; |
e6509c05 C |
596 | TC.StructUnionName(structUnion su, |
597 | TC.MV(unwrap_mcode tag,TC.Unitary,false))) | |
598 | | MetaId(tag,_,_) -> | |
599 | (* would have to duplicate the type in type_cocci.ml? | |
600 | perhaps polymorphism would help? *) | |
601 | failwith "constraints not supported on struct type name" | |
34e49164 C |
602 | | _ -> failwith "unexpected struct/union type name") |
603 | | StructUnionName(su,None) -> failwith "nameless structure - what to do???" | |
604 | | StructUnionDef(ty,_,_,_) -> ast0_type_to_type ty | |
e6509c05 | 605 | | TypeName(name) -> TC.TypeName(unwrap_mcode name) |
34e49164 | 606 | | MetaType(name,_) -> |
e6509c05 | 607 | TC.MetaType(unwrap_mcode name,TC.Unitary,false) |
978fd7e5 C |
608 | | DisjType(_,types,_,_) -> |
609 | Common.pr2_once | |
610 | "disjtype not supported in smpl type inference, assuming unknown"; | |
e6509c05 | 611 | TC.Unknown |
34e49164 C |
612 | | OptType(ty) | UniqueType(ty) -> |
613 | ast0_type_to_type ty | |
614 | ||
faf9a90c | 615 | and baseType = function |
e6509c05 C |
616 | Ast.VoidType -> TC.VoidType |
617 | | Ast.CharType -> TC.CharType | |
618 | | Ast.ShortType -> TC.ShortType | |
619 | | Ast.IntType -> TC.IntType | |
620 | | Ast.DoubleType -> TC.DoubleType | |
621 | | Ast.FloatType -> TC.FloatType | |
622 | | Ast.LongType -> TC.LongType | |
623 | | Ast.LongLongType -> TC.LongLongType | |
1eddfd50 C |
624 | | Ast.SizeType -> TC.SizeType |
625 | | Ast.SSizeType -> TC.SSizeType | |
626 | | Ast.PtrDiffType -> TC.PtrDiffType | |
34e49164 C |
627 | |
628 | and structUnion t = | |
629 | match unwrap_mcode t with | |
e6509c05 C |
630 | Ast.Struct -> TC.Struct |
631 | | Ast.Union -> TC.Union | |
34e49164 C |
632 | |
633 | and sign t = | |
634 | match unwrap_mcode t with | |
e6509c05 C |
635 | Ast.Signed -> TC.Signed |
636 | | Ast.Unsigned -> TC.Unsigned | |
34e49164 C |
637 | |
638 | and const_vol t = | |
639 | match unwrap_mcode t with | |
e6509c05 C |
640 | Ast.Const -> TC.Const |
641 | | Ast.Volatile -> TC.Volatile | |
34e49164 C |
642 | |
643 | (* --------------------------------------------------------------------- *) | |
644 | (* this function is a rather minimal attempt. the problem is that information | |
645 | has been lost. but since it is only used for metavariable types in the isos, | |
646 | perhaps it doesn't matter *) | |
708f4980 C |
647 | and make_mcode x = (x,NONE,default_info(),context_befaft(),ref NoMetaPos,-1) |
648 | let make_mcode_info x info = (x,NONE,info,context_befaft(),ref NoMetaPos,-1) | |
c491d8ee C |
649 | and make_minus_mcode x = |
650 | (x,NONE,default_info(),minus_befaft(),ref NoMetaPos,-1) | |
34e49164 C |
651 | |
652 | exception TyConv | |
653 | ||
654 | let rec reverse_type ty = | |
655 | match ty with | |
e6509c05 | 656 | TC.ConstVol(cv,ty) -> |
485bce71 | 657 | ConstVol(reverse_const_vol cv,context_wrap(reverse_type ty)) |
e6509c05 | 658 | | TC.BaseType(bty) -> |
faf9a90c | 659 | BaseType(reverse_baseType bty,[(* not used *)]) |
e6509c05 C |
660 | | TC.SignedT(sgn,None) -> Signed(reverse_sign sgn,None) |
661 | | TC.SignedT(sgn,Some bty) -> | |
faf9a90c | 662 | Signed(reverse_sign sgn,Some (context_wrap(reverse_type ty))) |
e6509c05 | 663 | | TC.Pointer(ty) -> |
485bce71 | 664 | Pointer(context_wrap(reverse_type ty),make_mcode "*") |
e6509c05 C |
665 | | TC.EnumName(TC.MV(name,_,_)) -> |
666 | EnumName | |
667 | (make_mcode "enum", | |
668 | Some (context_wrap(MetaId(make_mcode name,Ast.IdNoConstraint, | |
669 | Impure)))) | |
670 | | TC.EnumName(TC.Name tag) -> | |
671 | EnumName(make_mcode "enum",Some(context_wrap(Id(make_mcode tag)))) | |
672 | | TC.StructUnionName(su,TC.MV(name,_,_)) -> | |
673 | (* not right?... *) | |
674 | StructUnionName | |
675 | (reverse_structUnion su, | |
676 | Some(context_wrap(MetaId(make_mcode name,Ast.IdNoConstraint, | |
677 | Impure(*not really right*))))) | |
678 | | TC.StructUnionName(su,TC.Name tag) -> | |
679 | StructUnionName | |
680 | (reverse_structUnion su, | |
681 | Some (context_wrap(Id(make_mcode tag)))) | |
682 | | TC.TypeName(name) -> TypeName(make_mcode name) | |
683 | | TC.MetaType(name,_,_) -> | |
34e49164 C |
684 | MetaType(make_mcode name,Impure(*not really right*)) |
685 | | _ -> raise TyConv | |
686 | ||
faf9a90c | 687 | and reverse_baseType = function |
e6509c05 C |
688 | TC.VoidType -> Ast.VoidType |
689 | | TC.CharType -> Ast.CharType | |
690 | | TC.BoolType -> Ast.IntType | |
691 | | TC.ShortType -> Ast.ShortType | |
692 | | TC.IntType -> Ast.IntType | |
693 | | TC.DoubleType -> Ast.DoubleType | |
694 | | TC.FloatType -> Ast.FloatType | |
695 | | TC.LongType -> Ast.LongType | |
696 | | TC.LongLongType -> Ast.LongLongType | |
1eddfd50 C |
697 | | TC.SizeType -> Ast.SizeType |
698 | | TC.SSizeType -> Ast.SSizeType | |
699 | | TC.PtrDiffType -> Ast.PtrDiffType | |
700 | ||
34e49164 C |
701 | |
702 | and reverse_structUnion t = | |
703 | make_mcode | |
704 | (match t with | |
e6509c05 C |
705 | TC.Struct -> Ast.Struct |
706 | | TC.Union -> Ast.Union) | |
34e49164 C |
707 | |
708 | and reverse_sign t = | |
709 | make_mcode | |
710 | (match t with | |
e6509c05 C |
711 | TC.Signed -> Ast.Signed |
712 | | TC.Unsigned -> Ast.Unsigned) | |
34e49164 C |
713 | |
714 | and reverse_const_vol t = | |
715 | make_mcode | |
716 | (match t with | |
e6509c05 C |
717 | TC.Const -> Ast.Const |
718 | | TC.Volatile -> Ast.Volatile) | |
34e49164 C |
719 | |
720 | (* --------------------------------------------------------------------- *) | |
721 | ||
722 | let lub_pure x y = | |
723 | match (x,y) with | |
724 | (Impure,_) | (_,Impure) -> Impure | |
725 | | (Pure,Context) | (Context,Pure) -> Impure | |
726 | | (Pure,_) | (_,Pure) -> Pure | |
727 | | (_,Context) | (Context,_) -> Context | |
728 | | _ -> PureContext | |
729 | ||
730 | (* --------------------------------------------------------------------- *) | |
731 | ||
732 | let rule_name = ref "" (* for the convenience of the parser *) |