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9bc82bae 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 | ||
c491d8ee C |
25 | (* |
26 | * Copyright 2010, INRIA, University of Copenhagen | |
27 | * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix | |
28 | * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen | |
29 | * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix | |
30 | * This file is part of Coccinelle. | |
31 | * | |
32 | * Coccinelle is free software: you can redistribute it and/or modify | |
33 | * it under the terms of the GNU General Public License as published by | |
34 | * the Free Software Foundation, according to version 2 of the License. | |
35 | * | |
36 | * Coccinelle is distributed in the hope that it will be useful, | |
37 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
38 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
39 | * GNU General Public License for more details. | |
40 | * | |
41 | * You should have received a copy of the GNU General Public License | |
42 | * along with Coccinelle. If not, see <http://www.gnu.org/licenses/>. | |
43 | * | |
44 | * The authors reserve the right to distribute this or future versions of | |
45 | * Coccinelle under other licenses. | |
46 | *) | |
47 | ||
48 | ||
34e49164 | 49 | module Ast = Ast_cocci |
e6509c05 | 50 | module TC = Type_cocci |
34e49164 C |
51 | |
52 | (* --------------------------------------------------------------------- *) | |
53 | (* Modified code *) | |
54 | ||
55 | type arity = OPT | UNIQUE | NONE | |
56 | ||
57 | type token_info = | |
58 | { tline_start : int; tline_end : int; | |
59 | left_offset : int; right_offset : int } | |
60 | let default_token_info = | |
61 | { tline_start = -1; tline_end = -1; left_offset = -1; right_offset = -1 } | |
62 | ||
63 | (* MIXED is like CONTEXT, since sometimes MIXED things have to revert to | |
64 | CONTEXT - see insert_plus.ml *) | |
951c7801 C |
65 | type count = ONE (* + *) | MANY (* ++ *) |
66 | ||
34e49164 C |
67 | type mcodekind = |
68 | MINUS of (Ast.anything list list * token_info) ref | |
951c7801 | 69 | | PLUS of Ast.count |
34e49164 C |
70 | | CONTEXT of (Ast.anything Ast.befaft * token_info * token_info) ref |
71 | | MIXED of (Ast.anything Ast.befaft * token_info * token_info) ref | |
72 | ||
0708f913 C |
73 | type position_info = { line_start : int; line_end : int; |
74 | logical_start : int; logical_end : int; | |
75 | column : int; offset : int; } | |
76 | ||
77 | type info = { pos_info : position_info; | |
34e49164 C |
78 | attachable_start : bool; attachable_end : bool; |
79 | mcode_start : mcodekind list; mcode_end : mcodekind list; | |
34e49164 | 80 | (* the following are only for + code *) |
c3e37e97 C |
81 | strings_before : (Ast.added_string * position_info) list; |
82 | strings_after : (Ast.added_string * position_info) list } | |
34e49164 | 83 | |
708f4980 C |
84 | (* adjacency index is incremented when we skip over dots or nest delimiters |
85 | it is used in deciding how much to remove, when two adjacent code tokens are | |
86 | removed. *) | |
87 | type 'a mcode = | |
88 | 'a * arity * info * mcodekind * meta_pos ref (* pos, - only *) * | |
89 | int (* adjacency_index *) | |
34e49164 C |
90 | (* int ref is an index *) |
91 | and 'a wrap = | |
92 | { node : 'a; | |
93 | info : info; | |
94 | index : int ref; | |
95 | mcodekind : mcodekind ref; | |
e6509c05 | 96 | exp_ty : TC.typeC option ref; (* only for expressions *) |
34e49164 C |
97 | bef_aft : dots_bef_aft; (* only for statements *) |
98 | true_if_arg : bool; (* true if "arg_exp", only for exprs *) | |
99 | true_if_test : bool; (* true if "test position", only for exprs *) | |
100 | true_if_test_exp : bool;(* true if "test_exp from iso", only for exprs *) | |
101 | (*nonempty if this represents the use of an iso*) | |
102 | iso_info : (string*anything) list } | |
103 | ||
104 | and dots_bef_aft = | |
105 | NoDots | AddingBetweenDots of statement | DroppingBetweenDots of statement | |
106 | ||
107 | (* for iso metavariables, true if they can only match nonmodified terms with | |
108 | all metavariables unitary | |
109 | for SP metavariables, true if the metavariable is unitary (valid up to | |
110 | isomorphism phase only) | |
111 | In SP, the only options are impure and context | |
112 | *) | |
113 | and pure = Impure | Pure | Context | PureContext (* pure and only context *) | |
114 | ||
115 | (* --------------------------------------------------------------------- *) | |
116 | (* --------------------------------------------------------------------- *) | |
117 | (* Dots *) | |
118 | ||
119 | and 'a base_dots = | |
120 | DOTS of 'a list | |
121 | | CIRCLES of 'a list | |
122 | | STARS of 'a list | |
123 | ||
124 | and 'a dots = 'a base_dots wrap | |
125 | ||
126 | (* --------------------------------------------------------------------- *) | |
127 | (* Identifier *) | |
128 | ||
129 | and base_ident = | |
951c7801 C |
130 | Id of string mcode |
131 | | MetaId of Ast.meta_name mcode * Ast.idconstraint * pure | |
132 | | MetaFunc of Ast.meta_name mcode * Ast.idconstraint * pure | |
133 | | MetaLocalFunc of Ast.meta_name mcode * Ast.idconstraint * pure | |
34e49164 C |
134 | | OptIdent of ident |
135 | | UniqueIdent of ident | |
136 | ||
137 | and ident = base_ident wrap | |
138 | ||
139 | (* --------------------------------------------------------------------- *) | |
140 | (* Expression *) | |
141 | ||
faf9a90c | 142 | and base_expression = |
34e49164 C |
143 | Ident of ident |
144 | | Constant of Ast.constant mcode | |
145 | | FunCall of expression * string mcode (* ( *) * | |
146 | expression dots * string mcode (* ) *) | |
147 | | Assignment of expression * Ast.assignOp mcode * expression * | |
148 | bool (* true if it can match an initialization *) | |
149 | | CondExpr of expression * string mcode (* ? *) * expression option * | |
150 | string mcode (* : *) * expression | |
151 | | Postfix of expression * Ast.fixOp mcode | |
152 | | Infix of expression * Ast.fixOp mcode | |
153 | | Unary of expression * Ast.unaryOp mcode | |
154 | | Binary of expression * Ast.binaryOp mcode * expression | |
155 | | Nested of expression * Ast.binaryOp mcode * expression | |
156 | | Paren of string mcode (* ( *) * expression * | |
157 | string mcode (* ) *) | |
158 | | ArrayAccess of expression * string mcode (* [ *) * expression * | |
159 | string mcode (* ] *) | |
160 | | RecordAccess of expression * string mcode (* . *) * ident | |
161 | | RecordPtAccess of expression * string mcode (* -> *) * ident | |
162 | | Cast of string mcode (* ( *) * typeC * string mcode (* ) *) * | |
163 | expression | |
164 | | SizeOfExpr of string mcode (* sizeof *) * expression | |
165 | | SizeOfType of string mcode (* sizeof *) * string mcode (* ( *) * | |
166 | typeC * string mcode (* ) *) | |
167 | | TypeExp of typeC (* type name used as an expression, only in args *) | |
951c7801 C |
168 | | MetaErr of Ast.meta_name mcode * constraints * pure |
169 | | MetaExpr of Ast.meta_name mcode * constraints * | |
e6509c05 | 170 | TC.typeC list option * Ast.form * pure |
34e49164 C |
171 | | MetaExprList of Ast.meta_name mcode (* only in arg lists *) * |
172 | listlen * pure | |
173 | | EComma of string mcode (* only in arg lists *) | |
174 | | DisjExpr of string mcode * expression list * | |
175 | string mcode list (* the |s *) * string mcode | |
176 | | NestExpr of string mcode * expression dots * string mcode * | |
177 | expression option * Ast.multi | |
178 | | Edots of string mcode (* ... *) * expression option | |
179 | | Ecircles of string mcode (* ooo *) * expression option | |
180 | | Estars of string mcode (* *** *) * expression option | |
181 | | OptExp of expression | |
182 | | UniqueExp of expression | |
183 | ||
184 | and expression = base_expression wrap | |
185 | ||
951c7801 C |
186 | and constraints = |
187 | NoConstraint | |
5636bb2c | 188 | | NotIdCstrt of Ast.reconstraint |
951c7801 | 189 | | NotExpCstrt of expression list |
5636bb2c | 190 | | SubExpCstrt of Ast.meta_name list |
951c7801 | 191 | |
88e71198 C |
192 | and listlen = |
193 | MetaListLen of Ast.meta_name mcode | |
194 | | CstListLen of int | |
195 | | AnyListLen | |
34e49164 C |
196 | |
197 | (* --------------------------------------------------------------------- *) | |
198 | (* Types *) | |
199 | ||
faf9a90c | 200 | and base_typeC = |
34e49164 | 201 | ConstVol of Ast.const_vol mcode * typeC |
faf9a90c C |
202 | | BaseType of Ast.baseType * string mcode list |
203 | | Signed of Ast.sign mcode * typeC option | |
34e49164 C |
204 | | Pointer of typeC * string mcode (* * *) |
205 | | FunctionPointer of typeC * | |
206 | string mcode(* ( *)*string mcode(* * *)*string mcode(* ) *)* | |
207 | string mcode (* ( *)*parameter_list*string mcode(* ) *) | |
208 | | FunctionType of typeC option * | |
209 | string mcode (* ( *) * parameter_list * | |
210 | string mcode (* ) *) | |
211 | | Array of typeC * string mcode (* [ *) * | |
212 | expression option * string mcode (* ] *) | |
c491d8ee C |
213 | | EnumName of string mcode (*enum*) * ident option (* name *) |
214 | | EnumDef of typeC (* either StructUnionName or metavar *) * | |
215 | string mcode (* { *) * expression dots * string mcode (* } *) | |
34e49164 C |
216 | | StructUnionName of Ast.structUnion mcode * ident option (* name *) |
217 | | StructUnionDef of typeC (* either StructUnionName or metavar *) * | |
218 | string mcode (* { *) * declaration dots * string mcode (* } *) | |
219 | | TypeName of string mcode | |
220 | | MetaType of Ast.meta_name mcode * pure | |
221 | | DisjType of string mcode * typeC list * (* only after iso *) | |
222 | string mcode list (* the |s *) * string mcode | |
223 | | OptType of typeC | |
224 | | UniqueType of typeC | |
225 | ||
226 | and typeC = base_typeC wrap | |
227 | ||
228 | (* --------------------------------------------------------------------- *) | |
229 | (* Variable declaration *) | |
230 | (* Even if the Cocci program specifies a list of declarations, they are | |
231 | split out into multiple declarations of a single variable each. *) | |
232 | ||
233 | and base_declaration = | |
413ffc02 C |
234 | MetaDecl of Ast.meta_name mcode * pure (* variables *) |
235 | (* the following are kept separate from MetaDecls because ultimately | |
236 | they don't match the same thin at all. Consider whether there | |
237 | should be a separate type for fields, as in the C AST *) | |
238 | | MetaField of Ast.meta_name mcode * pure (* structure fields *) | |
239 | | Init of Ast.storage mcode option * typeC * ident * string mcode (*=*) * | |
34e49164 C |
240 | initialiser * string mcode (*;*) |
241 | | UnInit of Ast.storage mcode option * typeC * ident * string mcode (* ; *) | |
242 | | TyDecl of typeC * string mcode (* ; *) | |
243 | | MacroDecl of ident (* name *) * string mcode (* ( *) * | |
244 | expression dots * string mcode (* ) *) * string mcode (* ; *) | |
245 | | Typedef of string mcode (* typedef *) * typeC * typeC * string mcode (*;*) | |
246 | | DisjDecl of string mcode * declaration list * | |
247 | string mcode list (* the |s *) * string mcode | |
248 | (* Ddots is for a structure declaration *) | |
249 | | Ddots of string mcode (* ... *) * declaration option (* whencode *) | |
250 | | OptDecl of declaration | |
251 | | UniqueDecl of declaration | |
252 | ||
253 | and declaration = base_declaration wrap | |
254 | ||
255 | (* --------------------------------------------------------------------- *) | |
256 | (* Initializers *) | |
257 | ||
258 | and base_initialiser = | |
113803cf C |
259 | MetaInit of Ast.meta_name mcode * pure |
260 | | InitExpr of expression | |
c491d8ee C |
261 | | InitList of string mcode (*{*) * initialiser_list * string mcode (*}*) * |
262 | (* true if ordered, as for array, false if unordered, as for struct *) | |
263 | bool | |
113803cf C |
264 | | InitGccExt of |
265 | designator list (* name *) * string mcode (*=*) * | |
34e49164 C |
266 | initialiser (* gccext: *) |
267 | | InitGccName of ident (* name *) * string mcode (*:*) * | |
268 | initialiser | |
34e49164 C |
269 | | IComma of string mcode (* , *) |
270 | | Idots of string mcode (* ... *) * initialiser option (* whencode *) | |
271 | | OptIni of initialiser | |
272 | | UniqueIni of initialiser | |
273 | ||
113803cf C |
274 | and designator = |
275 | DesignatorField of string mcode (* . *) * ident | |
276 | | DesignatorIndex of string mcode (* [ *) * expression * string mcode (* ] *) | |
277 | | DesignatorRange of | |
278 | string mcode (* [ *) * expression * string mcode (* ... *) * | |
279 | expression * string mcode (* ] *) | |
280 | ||
34e49164 C |
281 | and initialiser = base_initialiser wrap |
282 | ||
283 | and initialiser_list = initialiser dots | |
284 | ||
285 | (* --------------------------------------------------------------------- *) | |
286 | (* Parameter *) | |
287 | ||
288 | and base_parameterTypeDef = | |
289 | VoidParam of typeC | |
290 | | Param of typeC * ident option | |
291 | | MetaParam of Ast.meta_name mcode * pure | |
292 | | MetaParamList of Ast.meta_name mcode * listlen * pure | |
293 | | PComma of string mcode | |
294 | | Pdots of string mcode (* ... *) | |
295 | | Pcircles of string mcode (* ooo *) | |
296 | | OptParam of parameterTypeDef | |
297 | | UniqueParam of parameterTypeDef | |
298 | ||
299 | and parameterTypeDef = base_parameterTypeDef wrap | |
300 | ||
301 | and parameter_list = parameterTypeDef dots | |
302 | ||
303 | (* --------------------------------------------------------------------- *) | |
304 | (* #define Parameters *) | |
305 | ||
306 | and base_define_param = | |
307 | DParam of ident | |
308 | | DPComma of string mcode | |
309 | | DPdots of string mcode (* ... *) | |
310 | | DPcircles of string mcode (* ooo *) | |
311 | | OptDParam of define_param | |
312 | | UniqueDParam of define_param | |
313 | ||
314 | and define_param = base_define_param wrap | |
315 | ||
316 | and base_define_parameters = | |
317 | NoParams | |
318 | | DParams of string mcode(*( *) * define_param dots * string mcode(* )*) | |
319 | ||
320 | and define_parameters = base_define_parameters wrap | |
321 | ||
322 | (* --------------------------------------------------------------------- *) | |
323 | (* Statement*) | |
324 | ||
325 | and base_statement = | |
326 | Decl of (info * mcodekind) (* before the decl *) * declaration | |
327 | | Seq of string mcode (* { *) * statement dots * | |
328 | string mcode (* } *) | |
329 | | ExprStatement of expression * string mcode (*;*) | |
330 | | IfThen of string mcode (* if *) * string mcode (* ( *) * | |
331 | expression * string mcode (* ) *) * | |
332 | statement * (info * mcodekind) (* after info *) | |
333 | | IfThenElse of string mcode (* if *) * string mcode (* ( *) * | |
334 | expression * string mcode (* ) *) * | |
335 | statement * string mcode (* else *) * statement * | |
336 | (info * mcodekind) | |
337 | | While of string mcode (* while *) * string mcode (* ( *) * | |
338 | expression * string mcode (* ) *) * | |
339 | statement * (info * mcodekind) (* after info *) | |
340 | | Do of string mcode (* do *) * statement * | |
341 | string mcode (* while *) * string mcode (* ( *) * | |
342 | expression * string mcode (* ) *) * | |
343 | string mcode (* ; *) | |
344 | | For of string mcode (* for *) * string mcode (* ( *) * | |
345 | expression option * string mcode (*;*) * | |
346 | expression option * string mcode (*;*) * | |
347 | expression option * string mcode (* ) *) * statement * | |
348 | (info * mcodekind) (* after info *) | |
349 | | Iterator of ident (* name *) * string mcode (* ( *) * | |
350 | expression dots * string mcode (* ) *) * | |
351 | statement * (info * mcodekind) (* after info *) | |
352 | | Switch of string mcode (* switch *) * string mcode (* ( *) * | |
353 | expression * string mcode (* ) *) * string mcode (* { *) * | |
fc1ad971 | 354 | statement (*decl*) dots * |
34e49164 C |
355 | case_line dots * string mcode (* } *) |
356 | | Break of string mcode (* break *) * string mcode (* ; *) | |
357 | | Continue of string mcode (* continue *) * string mcode (* ; *) | |
358 | | Label of ident * string mcode (* : *) | |
359 | | Goto of string mcode (* goto *) * ident * string mcode (* ; *) | |
360 | | Return of string mcode (* return *) * string mcode (* ; *) | |
361 | | ReturnExpr of string mcode (* return *) * expression * | |
362 | string mcode (* ; *) | |
363 | | MetaStmt of Ast.meta_name mcode * pure | |
364 | | MetaStmtList of Ast.meta_name mcode(*only in statement lists*) * pure | |
365 | | Exp of expression (* only in dotted statement lists *) | |
366 | | TopExp of expression (* for macros body *) | |
367 | | Ty of typeC (* only at top level *) | |
1be43e12 | 368 | | TopInit of initialiser (* only at top level *) |
34e49164 C |
369 | | Disj of string mcode * statement dots list * |
370 | string mcode list (* the |s *) * string mcode | |
371 | | Nest of string mcode * statement dots * string mcode * | |
372 | (statement dots,statement) whencode list * Ast.multi | |
373 | | Dots of string mcode (* ... *) * | |
374 | (statement dots,statement) whencode list | |
375 | | Circles of string mcode (* ooo *) * | |
376 | (statement dots,statement) whencode list | |
377 | | Stars of string mcode (* *** *) * | |
378 | (statement dots,statement) whencode list | |
379 | | FunDecl of (info * mcodekind) (* before the function decl *) * | |
380 | fninfo list * ident (* name *) * | |
381 | string mcode (* ( *) * parameter_list * string mcode (* ) *) * | |
382 | string mcode (* { *) * statement dots * | |
383 | string mcode (* } *) | |
384 | | Include of string mcode (* #include *) * Ast.inc_file mcode (* file *) | |
385 | | Define of string mcode (* #define *) * ident (* name *) * | |
386 | define_parameters (*params*) * statement dots | |
387 | | OptStm of statement | |
388 | | UniqueStm of statement | |
389 | ||
390 | and fninfo = | |
391 | FStorage of Ast.storage mcode | |
392 | | FType of typeC | |
393 | | FInline of string mcode | |
394 | | FAttr of string mcode | |
395 | ||
396 | and ('a,'b) whencode = | |
397 | WhenNot of 'a | |
398 | | WhenAlways of 'b | |
399 | | WhenModifier of Ast.when_modifier | |
1be43e12 C |
400 | | WhenNotTrue of expression |
401 | | WhenNotFalse of expression | |
34e49164 C |
402 | |
403 | and statement = base_statement wrap | |
404 | ||
405 | and base_case_line = | |
406 | Default of string mcode (* default *) * string mcode (*:*) * statement dots | |
407 | | Case of string mcode (* case *) * expression * string mcode (*:*) * | |
408 | statement dots | |
fc1ad971 C |
409 | | DisjCase of string mcode * case_line list * |
410 | string mcode list (* the |s *) * string mcode | |
34e49164 C |
411 | | OptCase of case_line |
412 | ||
413 | and case_line = base_case_line wrap | |
414 | ||
415 | (* --------------------------------------------------------------------- *) | |
416 | (* Positions *) | |
417 | ||
418 | and meta_pos = | |
419 | MetaPos of Ast.meta_name mcode * Ast.meta_name list * Ast.meta_collect | |
420 | | NoMetaPos | |
421 | ||
422 | (* --------------------------------------------------------------------- *) | |
423 | (* Top-level code *) | |
424 | ||
425 | and base_top_level = | |
426 | DECL of statement | |
427 | | CODE of statement dots | |
428 | | FILEINFO of string mcode (* old file *) * string mcode (* new file *) | |
429 | | ERRORWORDS of expression list | |
430 | | OTHER of statement (* temporary, disappears after top_level.ml *) | |
431 | ||
432 | and top_level = base_top_level wrap | |
433 | and rule = top_level list | |
434 | ||
435 | and parsed_rule = | |
436 | CocciRule of | |
437 | (rule * Ast.metavar list * | |
438 | (string list * string list * Ast.dependency * string * Ast.exists)) * | |
faf9a90c | 439 | (rule * Ast.metavar list) * Ast.ruletype |
174d1640 | 440 | | ScriptRule of string (* name *) * |
aba5c457 C |
441 | string * Ast.dependency * |
442 | (Ast.script_meta_name * Ast.meta_name * Ast.metavar) list * | |
413ffc02 | 443 | Ast.meta_name list (*script vars*) * |
174d1640 C |
444 | string |
445 | | InitialScriptRule of string (* name *) *string * Ast.dependency * string | |
446 | | FinalScriptRule of string (* name *) *string * Ast.dependency * string | |
34e49164 C |
447 | |
448 | (* --------------------------------------------------------------------- *) | |
449 | ||
450 | and anything = | |
451 | DotsExprTag of expression dots | |
452 | | DotsInitTag of initialiser dots | |
453 | | DotsParamTag of parameterTypeDef dots | |
454 | | DotsStmtTag of statement dots | |
455 | | DotsDeclTag of declaration dots | |
456 | | DotsCaseTag of case_line dots | |
457 | | IdentTag of ident | |
458 | | ExprTag of expression | |
459 | | ArgExprTag of expression (* for isos *) | |
460 | | TestExprTag of expression (* for isos *) | |
461 | | TypeCTag of typeC | |
462 | | ParamTag of parameterTypeDef | |
463 | | InitTag of initialiser | |
464 | | DeclTag of declaration | |
465 | | StmtTag of statement | |
466 | | CaseLineTag of case_line | |
467 | | TopTag of top_level | |
468 | | IsoWhenTag of Ast.when_modifier | |
1be43e12 C |
469 | | IsoWhenTTag of expression |
470 | | IsoWhenFTag of expression | |
34e49164 C |
471 | | MetaPosTag of meta_pos |
472 | ||
473 | let dotsExpr x = DotsExprTag x | |
474 | let dotsParam x = DotsParamTag x | |
475 | let dotsInit x = DotsInitTag x | |
476 | let dotsStmt x = DotsStmtTag x | |
477 | let dotsDecl x = DotsDeclTag x | |
478 | let dotsCase x = DotsCaseTag x | |
479 | let ident x = IdentTag x | |
480 | let expr x = ExprTag x | |
481 | let typeC x = TypeCTag x | |
482 | let param x = ParamTag x | |
483 | let ini x = InitTag x | |
484 | let decl x = DeclTag x | |
485 | let stmt x = StmtTag x | |
486 | let case_line x = CaseLineTag x | |
487 | let top x = TopTag x | |
488 | ||
489 | (* --------------------------------------------------------------------- *) | |
490 | (* Avoid cluttering the parser. Calculated in compute_lines.ml. *) | |
491 | ||
0708f913 | 492 | let pos_info = |
34e49164 C |
493 | { line_start = -1; line_end = -1; |
494 | logical_start = -1; logical_end = -1; | |
0708f913 C |
495 | column = -1; offset = -1; } |
496 | ||
497 | let default_info _ = (* why is this a function? *) | |
498 | { pos_info = pos_info; | |
34e49164 C |
499 | attachable_start = true; attachable_end = true; |
500 | mcode_start = []; mcode_end = []; | |
0708f913 | 501 | strings_before = []; strings_after = [] } |
34e49164 C |
502 | |
503 | let default_befaft _ = | |
504 | MIXED(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
505 | let context_befaft _ = | |
506 | CONTEXT(ref (Ast.NOTHING,default_token_info,default_token_info)) | |
c491d8ee | 507 | let minus_befaft _ = MINUS(ref ([],default_token_info)) |
34e49164 C |
508 | |
509 | let wrap x = | |
510 | { node = x; | |
511 | info = default_info(); | |
512 | index = ref (-1); | |
513 | mcodekind = ref (default_befaft()); | |
514 | exp_ty = ref None; | |
515 | bef_aft = NoDots; | |
516 | true_if_arg = false; | |
517 | true_if_test = false; | |
518 | true_if_test_exp = false; | |
519 | iso_info = [] } | |
520 | let context_wrap x = | |
521 | { node = x; | |
522 | info = default_info(); | |
523 | index = ref (-1); | |
524 | mcodekind = ref (context_befaft()); | |
525 | exp_ty = ref None; | |
526 | bef_aft = NoDots; | |
527 | true_if_arg = false; | |
528 | true_if_test = false; | |
529 | true_if_test_exp = false; | |
530 | iso_info = [] } | |
531 | let unwrap x = x.node | |
708f4980 | 532 | let unwrap_mcode (x,_,_,_,_,_) = x |
34e49164 | 533 | let rewrap model x = { model with node = x } |
708f4980 C |
534 | let rewrap_mcode (_,arity,info,mcodekind,pos,adj) x = |
535 | (x,arity,info,mcodekind,pos,adj) | |
34e49164 C |
536 | let copywrap model x = |
537 | { model with node = x; index = ref !(model.index); | |
538 | mcodekind = ref !(model.mcodekind); exp_ty = ref !(model.exp_ty)} | |
708f4980 C |
539 | let get_pos (_,_,_,_,x,_) = !x |
540 | let get_pos_ref (_,_,_,_,x,_) = x | |
541 | let set_pos pos (m,arity,info,mcodekind,_,adj) = | |
542 | (m,arity,info,mcodekind,ref pos,adj) | |
34e49164 C |
543 | let get_info x = x.info |
544 | let set_info x info = {x with info = info} | |
0708f913 C |
545 | let get_line x = x.info.pos_info.line_start |
546 | let get_line_end x = x.info.pos_info.line_end | |
34e49164 C |
547 | let get_index x = !(x.index) |
548 | let set_index x i = x.index := i | |
549 | let get_mcodekind x = !(x.mcodekind) | |
708f4980 | 550 | let get_mcode_mcodekind (_,_,_,mcodekind,_,_) = mcodekind |
34e49164 C |
551 | let get_mcodekind_ref x = x.mcodekind |
552 | let set_mcodekind x mk = x.mcodekind := mk | |
553 | let set_type x t = x.exp_ty := t | |
554 | let get_type x = !(x.exp_ty) | |
555 | let get_dots_bef_aft x = x.bef_aft | |
556 | let set_dots_bef_aft x dots_bef_aft = {x with bef_aft = dots_bef_aft} | |
557 | let get_arg_exp x = x.true_if_arg | |
558 | let set_arg_exp x = {x with true_if_arg = true} | |
559 | let get_test_pos x = x.true_if_test | |
560 | let set_test_pos x = {x with true_if_test = true} | |
561 | let get_test_exp x = x.true_if_test_exp | |
562 | let set_test_exp x = {x with true_if_test_exp = true} | |
563 | let get_iso x = x.iso_info | |
564 | let set_iso x i = if !Flag.track_iso_usage then {x with iso_info = i} else x | |
708f4980 | 565 | let set_mcode_data data (_,ar,info,mc,pos,adj) = (data,ar,info,mc,pos,adj) |
34e49164 C |
566 | |
567 | (* --------------------------------------------------------------------- *) | |
568 | ||
569 | (* unique indices, for mcode and tree nodes *) | |
570 | let index_counter = ref 0 | |
571 | let fresh_index _ = let cur = !index_counter in index_counter := cur + 1; cur | |
572 | ||
573 | (* --------------------------------------------------------------------- *) | |
574 | ||
575 | let undots d = | |
576 | match unwrap d with | |
577 | | DOTS e -> e | |
578 | | CIRCLES e -> e | |
579 | | STARS e -> e | |
580 | ||
581 | (* --------------------------------------------------------------------- *) | |
582 | ||
583 | let rec ast0_type_to_type ty = | |
584 | match unwrap ty with | |
e6509c05 | 585 | ConstVol(cv,ty) -> TC.ConstVol(const_vol cv,ast0_type_to_type ty) |
faf9a90c | 586 | | BaseType(bty,strings) -> |
e6509c05 | 587 | TC.BaseType(baseType bty) |
faf9a90c | 588 | | Signed(sgn,None) -> |
e6509c05 | 589 | TC.SignedT(sign sgn,None) |
faf9a90c C |
590 | | Signed(sgn,Some ty) -> |
591 | let bty = ast0_type_to_type ty in | |
e6509c05 C |
592 | TC.SignedT(sign sgn,Some bty) |
593 | | Pointer(ty,_) -> TC.Pointer(ast0_type_to_type ty) | |
34e49164 | 594 | | FunctionPointer(ty,_,_,_,_,params,_) -> |
e6509c05 | 595 | TC.FunctionPointer(ast0_type_to_type ty) |
34e49164 | 596 | | FunctionType _ -> failwith "not supported" |
e6509c05 | 597 | | Array(ety,_,_,_) -> TC.Array(ast0_type_to_type ety) |
c491d8ee | 598 | | EnumName(su,Some tag) -> |
faf9a90c C |
599 | (match unwrap tag with |
600 | Id(tag) -> | |
e6509c05 | 601 | TC.EnumName(TC.Name(unwrap_mcode tag)) |
faf9a90c C |
602 | | MetaId(tag,_,_) -> |
603 | (Printf.printf | |
604 | "warning: enum with a metavariable name detected.\n"; | |
605 | Printf.printf | |
606 | "For type checking assuming the name of the metavariable is the name of the type\n"; | |
e6509c05 | 607 | TC.EnumName(TC.MV(unwrap_mcode tag,TC.Unitary,false))) |
faf9a90c | 608 | | _ -> failwith "unexpected enum type name") |
c491d8ee C |
609 | | EnumName(su,None) -> failwith "nameless enum - what to do???" |
610 | | EnumDef(ty,_,_,_) -> ast0_type_to_type ty | |
34e49164 C |
611 | | StructUnionName(su,Some tag) -> |
612 | (match unwrap tag with | |
613 | Id(tag) -> | |
e6509c05 C |
614 | TC.StructUnionName(structUnion su,TC.Name(unwrap_mcode tag)) |
615 | | MetaId(tag,Ast.IdNoConstraint,_) -> | |
978fd7e5 | 616 | (Common.pr2 |
34e49164 | 617 | "warning: struct/union with a metavariable name detected.\n"; |
978fd7e5 | 618 | Common.pr2 |
34e49164 | 619 | "For type checking assuming the name of the metavariable is the name of the type\n"; |
e6509c05 C |
620 | TC.StructUnionName(structUnion su, |
621 | TC.MV(unwrap_mcode tag,TC.Unitary,false))) | |
622 | | MetaId(tag,_,_) -> | |
623 | (* would have to duplicate the type in type_cocci.ml? | |
624 | perhaps polymorphism would help? *) | |
625 | failwith "constraints not supported on struct type name" | |
34e49164 C |
626 | | _ -> failwith "unexpected struct/union type name") |
627 | | StructUnionName(su,None) -> failwith "nameless structure - what to do???" | |
628 | | StructUnionDef(ty,_,_,_) -> ast0_type_to_type ty | |
e6509c05 | 629 | | TypeName(name) -> TC.TypeName(unwrap_mcode name) |
34e49164 | 630 | | MetaType(name,_) -> |
e6509c05 | 631 | TC.MetaType(unwrap_mcode name,TC.Unitary,false) |
978fd7e5 C |
632 | | DisjType(_,types,_,_) -> |
633 | Common.pr2_once | |
634 | "disjtype not supported in smpl type inference, assuming unknown"; | |
e6509c05 | 635 | TC.Unknown |
34e49164 C |
636 | | OptType(ty) | UniqueType(ty) -> |
637 | ast0_type_to_type ty | |
638 | ||
faf9a90c | 639 | and baseType = function |
e6509c05 C |
640 | Ast.VoidType -> TC.VoidType |
641 | | Ast.CharType -> TC.CharType | |
642 | | Ast.ShortType -> TC.ShortType | |
643 | | Ast.IntType -> TC.IntType | |
644 | | Ast.DoubleType -> TC.DoubleType | |
645 | | Ast.FloatType -> TC.FloatType | |
646 | | Ast.LongType -> TC.LongType | |
647 | | Ast.LongLongType -> TC.LongLongType | |
1eddfd50 C |
648 | | Ast.SizeType -> TC.SizeType |
649 | | Ast.SSizeType -> TC.SSizeType | |
650 | | Ast.PtrDiffType -> TC.PtrDiffType | |
34e49164 C |
651 | |
652 | and structUnion t = | |
653 | match unwrap_mcode t with | |
e6509c05 C |
654 | Ast.Struct -> TC.Struct |
655 | | Ast.Union -> TC.Union | |
34e49164 C |
656 | |
657 | and sign t = | |
658 | match unwrap_mcode t with | |
e6509c05 C |
659 | Ast.Signed -> TC.Signed |
660 | | Ast.Unsigned -> TC.Unsigned | |
34e49164 C |
661 | |
662 | and const_vol t = | |
663 | match unwrap_mcode t with | |
e6509c05 C |
664 | Ast.Const -> TC.Const |
665 | | Ast.Volatile -> TC.Volatile | |
34e49164 C |
666 | |
667 | (* --------------------------------------------------------------------- *) | |
668 | (* this function is a rather minimal attempt. the problem is that information | |
669 | has been lost. but since it is only used for metavariable types in the isos, | |
670 | perhaps it doesn't matter *) | |
708f4980 C |
671 | and make_mcode x = (x,NONE,default_info(),context_befaft(),ref NoMetaPos,-1) |
672 | let make_mcode_info x info = (x,NONE,info,context_befaft(),ref NoMetaPos,-1) | |
c491d8ee C |
673 | and make_minus_mcode x = |
674 | (x,NONE,default_info(),minus_befaft(),ref NoMetaPos,-1) | |
34e49164 C |
675 | |
676 | exception TyConv | |
677 | ||
678 | let rec reverse_type ty = | |
679 | match ty with | |
e6509c05 | 680 | TC.ConstVol(cv,ty) -> |
485bce71 | 681 | ConstVol(reverse_const_vol cv,context_wrap(reverse_type ty)) |
e6509c05 | 682 | | TC.BaseType(bty) -> |
faf9a90c | 683 | BaseType(reverse_baseType bty,[(* not used *)]) |
e6509c05 C |
684 | | TC.SignedT(sgn,None) -> Signed(reverse_sign sgn,None) |
685 | | TC.SignedT(sgn,Some bty) -> | |
faf9a90c | 686 | Signed(reverse_sign sgn,Some (context_wrap(reverse_type ty))) |
e6509c05 | 687 | | TC.Pointer(ty) -> |
485bce71 | 688 | Pointer(context_wrap(reverse_type ty),make_mcode "*") |
e6509c05 C |
689 | | TC.EnumName(TC.MV(name,_,_)) -> |
690 | EnumName | |
691 | (make_mcode "enum", | |
692 | Some (context_wrap(MetaId(make_mcode name,Ast.IdNoConstraint, | |
693 | Impure)))) | |
694 | | TC.EnumName(TC.Name tag) -> | |
695 | EnumName(make_mcode "enum",Some(context_wrap(Id(make_mcode tag)))) | |
696 | | TC.StructUnionName(su,TC.MV(name,_,_)) -> | |
697 | (* not right?... *) | |
698 | StructUnionName | |
699 | (reverse_structUnion su, | |
700 | Some(context_wrap(MetaId(make_mcode name,Ast.IdNoConstraint, | |
701 | Impure(*not really right*))))) | |
702 | | TC.StructUnionName(su,TC.Name tag) -> | |
703 | StructUnionName | |
704 | (reverse_structUnion su, | |
705 | Some (context_wrap(Id(make_mcode tag)))) | |
706 | | TC.TypeName(name) -> TypeName(make_mcode name) | |
707 | | TC.MetaType(name,_,_) -> | |
34e49164 C |
708 | MetaType(make_mcode name,Impure(*not really right*)) |
709 | | _ -> raise TyConv | |
710 | ||
faf9a90c | 711 | and reverse_baseType = function |
e6509c05 C |
712 | TC.VoidType -> Ast.VoidType |
713 | | TC.CharType -> Ast.CharType | |
714 | | TC.BoolType -> Ast.IntType | |
715 | | TC.ShortType -> Ast.ShortType | |
716 | | TC.IntType -> Ast.IntType | |
717 | | TC.DoubleType -> Ast.DoubleType | |
718 | | TC.FloatType -> Ast.FloatType | |
719 | | TC.LongType -> Ast.LongType | |
720 | | TC.LongLongType -> Ast.LongLongType | |
1eddfd50 C |
721 | | TC.SizeType -> Ast.SizeType |
722 | | TC.SSizeType -> Ast.SSizeType | |
723 | | TC.PtrDiffType -> Ast.PtrDiffType | |
724 | ||
34e49164 C |
725 | |
726 | and reverse_structUnion t = | |
727 | make_mcode | |
728 | (match t with | |
e6509c05 C |
729 | TC.Struct -> Ast.Struct |
730 | | TC.Union -> Ast.Union) | |
34e49164 C |
731 | |
732 | and reverse_sign t = | |
733 | make_mcode | |
734 | (match t with | |
e6509c05 C |
735 | TC.Signed -> Ast.Signed |
736 | | TC.Unsigned -> Ast.Unsigned) | |
34e49164 C |
737 | |
738 | and reverse_const_vol t = | |
739 | make_mcode | |
740 | (match t with | |
e6509c05 C |
741 | TC.Const -> Ast.Const |
742 | | TC.Volatile -> Ast.Volatile) | |
34e49164 C |
743 | |
744 | (* --------------------------------------------------------------------- *) | |
745 | ||
746 | let lub_pure x y = | |
747 | match (x,y) with | |
748 | (Impure,_) | (_,Impure) -> Impure | |
749 | | (Pure,Context) | (Context,Pure) -> Impure | |
750 | | (Pure,_) | (_,Pure) -> Pure | |
751 | | (_,Context) | (Context,_) -> Context | |
752 | | _ -> PureContext | |
753 | ||
754 | (* --------------------------------------------------------------------- *) | |
755 | ||
756 | let rule_name = ref "" (* for the convenience of the parser *) |