parsing_cocci/ast_cocci.mli

   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
  25 (* --------------------------------------------------------------------- *)
  26 (* Modified code *)
  27
  28 type added_string = Noindent of string | Indent of string
  29
  30 type info = { line : int; column : int;
  31               strbef : (added_string * int (* line *) * int (* col *)) list;
  32               straft : (added_string * int (* line *) * int (* col *)) list }
  33 type line = int
  34 type meta_name = string * string
  35 type 'a wrap =
  36     {node : 'a;
  37       node_line : line;
  38       free_vars : meta_name list; (*free vars*)
  39       minus_free_vars : meta_name list; (*minus free vars*)
  40       fresh_vars : (meta_name * seed) list; (*fresh vars*)
  41       inherited : meta_name list; (*inherited vars*)
  42       saved_witness : meta_name list; (*witness vars*)
  43       bef_aft : dots_bef_aft;
  44       pos_info : meta_name mcode option; (* pos info, try not to duplicate *)
  45       true_if_test_exp : bool;(* true if "test_exp from iso", only for exprs *)
  46       (* isos relevant to the term; ultimately only used for rule_elems *)
  47       iso_info : (string*anything) list }
  48
  49 and 'a befaft =
  50     BEFORE      of 'a list list * count
  51   | AFTER       of 'a list list * count
  52   | BEFOREAFTER of 'a list list * 'a list list * count
  53   | NOTHING
  54
  55 and 'a mcode = 'a * info * mcodekind * meta_pos (* pos variable *)
  56  (* pos is an offset indicating where in the C code the mcodekind has an
  57  effect *)
  58  and mcodekind =
  59     MINUS       of pos * int list * int * anything list list
  60   | CONTEXT     of pos * anything befaft
  61   | PLUS        of count
  62  and count = ONE (* + *) | MANY (* ++ *)
  63  and fixpos =
  64     Real of int (* charpos *) | Virt of int * int (* charpos + offset *)
  65  and pos = NoPos | DontCarePos | FixPos of (fixpos * fixpos)
  66
  67 and dots_bef_aft =
  68     NoDots
  69   | AddingBetweenDots of statement * int (*index of let var*)
  70   | DroppingBetweenDots of statement * int (*index of let var*)
  71
  72 and inherited = Type_cocci.inherited
  73 and keep_binding = Type_cocci.keep_binding
  74 and multi = bool (*true if a nest is one or more, false if it is zero or more*)
  75
  76 and end_info =
  77     meta_name list (*free vars*) * (meta_name * seed) list (*fresh*) *
  78       meta_name list (*inherited vars*) * mcodekind
  79
  80 (* --------------------------------------------------------------------- *)
  81 (* Metavariables *)
  82
  83 and arity = UNIQUE | OPT | MULTI | NONE
  84
  85 and metavar =
  86     MetaIdDecl of arity * meta_name (* name *)
  87   | MetaFreshIdDecl of meta_name (* name *) * seed (* seed *)
  88   | MetaTypeDecl of arity * meta_name (* name *)
  89   | MetaInitDecl of arity * meta_name (* name *)
  90   | MetaListlenDecl of meta_name (* name *)
  91   | MetaParamDecl of arity * meta_name (* name *)
  92   | MetaParamListDecl of arity * meta_name (*name*) * list_len (*len*)
  93   | MetaConstDecl of
  94       arity * meta_name (* name *) * Type_cocci.typeC list option
  95   | MetaErrDecl of arity * meta_name (* name *)
  96   | MetaExpDecl of
  97       arity * meta_name (* name *) * Type_cocci.typeC list option
  98   | MetaIdExpDecl of
  99       arity * meta_name (* name *) * Type_cocci.typeC list option
 100   | MetaLocalIdExpDecl of
 101       arity * meta_name (* name *) * Type_cocci.typeC list option
 102   | MetaExpListDecl of arity * meta_name (*name*) * list_len (*len*)
 103   | MetaDeclDecl of arity * meta_name (* name *)
 104   | MetaFieldDecl of arity * meta_name (* name *)
 105   | MetaStmDecl of arity * meta_name (* name *)
 106   | MetaStmListDecl of arity * meta_name (* name *)
 107   | MetaFuncDecl of arity * meta_name (* name *)
 108   | MetaLocalFuncDecl of arity * meta_name (* name *)
 109   | MetaPosDecl of arity * meta_name (* name *)
 110   | MetaDeclarerDecl of arity * meta_name (* name *)
 111   | MetaIteratorDecl of arity * meta_name (* name *)
 112
 113 and list_len = AnyLen | MetaLen of meta_name | CstLen of int
 114
 115 and seed = NoVal | StringSeed of string | ListSeed of seed_elem list
 116 and seed_elem = SeedString of string | SeedId of meta_name
 117
 118 (* --------------------------------------------------------------------- *)
 119 (* --------------------------------------------------------------------- *)
 120 (* Dots *)
 121
 122 and 'a base_dots =
 123     DOTS of 'a list
 124   | CIRCLES of 'a list
 125   | STARS of 'a list
 126
 127 and 'a dots = 'a base_dots wrap
 128
 129 (* --------------------------------------------------------------------- *)
 130 (* Identifier *)
 131
 132 and base_ident =
 133     Id            of string mcode
 134   | MetaId        of meta_name mcode * idconstraint * keep_binding * inherited
 135   | MetaFunc      of meta_name mcode * idconstraint * keep_binding * inherited
 136   | MetaLocalFunc of meta_name mcode * idconstraint * keep_binding * inherited
 137
 138   | OptIdent      of ident
 139   | UniqueIdent   of ident
 140
 141 and ident = base_ident wrap
 142
 143 (* --------------------------------------------------------------------- *)
 144 (* Expression *)
 145
 146 and base_expression =
 147     Ident          of ident
 148   | Constant       of constant mcode
 149   | FunCall        of expression * string mcode (* ( *) *
 150                       expression dots * string mcode (* ) *)
 151   | Assignment     of expression * assignOp mcode * expression * bool
 152   | CondExpr       of expression * string mcode (* ? *) * expression option *
 153                       string mcode (* : *) * expression
 154   | Postfix        of expression * fixOp mcode
 155   | Infix          of expression * fixOp mcode
 156   | Unary          of expression * unaryOp mcode
 157   | Binary         of expression * binaryOp mcode * expression
 158   | Nested         of expression * binaryOp mcode * expression
 159   | ArrayAccess    of expression * string mcode (* [ *) * expression *
 160                       string mcode (* ] *)
 161   | RecordAccess   of expression * string mcode (* . *) * ident
 162   | RecordPtAccess of expression * string mcode (* -> *) * ident
 163   | Cast           of string mcode (* ( *) * fullType * string mcode (* ) *) *
 164                       expression
 165
 166   | SizeOfExpr     of string mcode (* sizeof *) * expression
 167   | SizeOfType     of string mcode (* sizeof *) * string mcode (* ( *) *
 168                       fullType * string mcode (* ) *)
 169   | TypeExp        of fullType
 170
 171   | Paren          of string mcode (* ( *) * expression *
 172                       string mcode (* ) *)
 173
 174   | MetaErr        of meta_name mcode * constraints * keep_binding *
 175                       inherited
 176   | MetaExpr       of meta_name mcode * constraints * keep_binding *
 177                       Type_cocci.typeC list option * form * inherited
 178   | MetaExprList   of meta_name mcode * listlen *
 179                       keep_binding * inherited (* only in arg lists *)
 180
 181   | EComma         of string mcode (* only in arg lists *)
 182
 183   | DisjExpr       of expression list
 184   | NestExpr       of string mcode (* <.../<+... *) *
 185                       expression dots *
 186                       string mcode (* ...>/...+> *) *
 187                       expression option * multi
 188
 189   (* can appear in arg lists, and also inside Nest, as in:
 190    if(< ... X ... Y ...>)
 191    In the following, the expression option is the WHEN  *)
 192   | Edots          of string mcode (* ... *) * expression option
 193   | Ecircles       of string mcode (* ooo *) * expression option
 194   | Estars         of string mcode (* *** *) * expression option
 195
 196   | OptExp         of expression
 197   | UniqueExp      of expression
 198
 199 and constraints =
 200     NoConstraint
 201   | NotIdCstrt     of reconstraint
 202   | NotExpCstrt    of expression list
 203   | SubExpCstrt    of meta_name list
 204
 205 (* Constraints on Meta-* Identifiers, Functions *)
 206 and idconstraint =
 207     IdNoConstraint
 208   | IdNegIdSet         of string list * meta_name list
 209   | IdRegExpConstraint of reconstraint
 210
 211 and reconstraint =
 212   | IdRegExp        of string * Str.regexp
 213   | IdNotRegExp     of string * Str.regexp
 214
 215 and form = ANY | ID | LocalID | CONST (* form for MetaExp *)
 216
 217 and expression = base_expression wrap
 218
 219 and listlen =
 220     MetaListLen of meta_name mcode * keep_binding * inherited
 221   | CstListLen of int
 222   | AnyListLen
 223
 224 and  unaryOp = GetRef | DeRef | UnPlus |  UnMinus | Tilde | Not
 225 and  assignOp = SimpleAssign | OpAssign of arithOp
 226 and  fixOp = Dec | Inc
 227
 228 and  binaryOp = Arith of arithOp | Logical of logicalOp
 229 and  arithOp =
 230     Plus | Minus | Mul | Div | Mod | DecLeft | DecRight | And | Or | Xor
 231 and  logicalOp = Inf | Sup | InfEq | SupEq | Eq | NotEq | AndLog | OrLog
 232
 233 and constant =
 234     String of string
 235   | Char   of string
 236   | Int    of string
 237   | Float  of string
 238
 239 (* --------------------------------------------------------------------- *)
 240 (* Types *)
 241
 242 and base_fullType =
 243     Type            of const_vol mcode option * typeC
 244   | DisjType        of fullType list (* only after iso *)
 245   | OptType         of fullType
 246   | UniqueType      of fullType
 247
 248 and base_typeC =
 249     BaseType        of baseType * string mcode list (* Yoann style *)
 250   | SignedT         of sign mcode * typeC option
 251   | Pointer         of fullType * string mcode (* * *)
 252   | FunctionPointer of fullType *
 253                   string mcode(* ( *)*string mcode(* * *)*string mcode(* ) *)*
 254                   string mcode (* ( *)*parameter_list*string mcode(* ) *)
 255   | FunctionType     of bool (* true if all minus for dropping return type *) *
 256                    fullType option *
 257                    string mcode (* ( *) * parameter_list *
 258                    string mcode (* ) *)
 259   | Array           of fullType * string mcode (* [ *) *
 260                        expression option * string mcode (* ] *)
 261   | EnumName        of string mcode (*enum*) * ident option (* name *)
 262   | EnumDef  of fullType (* either EnumName or metavar *) *
 263         string mcode (* { *) * expression dots * string mcode (* } *)
 264   | StructUnionName of structUnion mcode * ident option (* name *)
 265   | StructUnionDef  of fullType (* either StructUnionName or metavar *) *
 266         string mcode (* { *) * declaration dots * string mcode (* } *)
 267   | TypeName        of string mcode
 268
 269   | MetaType        of meta_name mcode * keep_binding * inherited
 270
 271 and fullType = base_fullType wrap
 272 and typeC = base_typeC wrap
 273
 274 and baseType = VoidType | CharType | ShortType | IntType | DoubleType
 275   | FloatType | LongType | LongLongType | SizeType | SSizeType | PtrDiffType
 276
 277 and structUnion = Struct | Union
 278
 279 and sign = Signed | Unsigned
 280
 281 and const_vol = Const | Volatile
 282
 283 (* --------------------------------------------------------------------- *)
 284 (* Variable declaration *)
 285 (* Even if the Cocci program specifies a list of declarations, they are
 286    split out into multiple declarations of a single variable each. *)
 287
 288 and base_declaration =
 289     Init of storage mcode option * fullType * ident * string mcode (*=*) *
 290         initialiser * string mcode (*;*)
 291   | UnInit of storage mcode option * fullType * ident * string mcode (* ; *)
 292   | TyDecl of fullType * string mcode (* ; *)
 293   | MacroDecl of ident (* name *) * string mcode (* ( *) *
 294         expression dots * string mcode (* ) *) * string mcode (* ; *)
 295   | Typedef of string mcode (*typedef*) * fullType * typeC * string mcode (*;*)
 296   | DisjDecl   of declaration list
 297   | Ddots    of string mcode (* ... *) * declaration option (* whencode *)
 298
 299   | MetaDecl of meta_name mcode * keep_binding * inherited
 300   | MetaField of meta_name mcode * keep_binding * inherited
 301
 302   | OptDecl    of declaration
 303   | UniqueDecl of declaration
 304
 305 and declaration = base_declaration wrap
 306
 307 (* --------------------------------------------------------------------- *)
 308 (* Initializers *)
 309
 310 and base_initialiser =
 311     MetaInit of meta_name mcode * keep_binding * inherited
 312   | InitExpr of expression
 313   | ArInitList of string mcode (*{*) * initialiser dots * string mcode (*}*)
 314   | StrInitList of bool (* true if all are - *) *
 315         string mcode (*{*) * initialiser list * string mcode (*}*) *
 316         initialiser list (* whencode: elements that shouldn't appear in init *)
 317   | InitGccExt of
 318       designator list (* name *) * string mcode (*=*) *
 319         initialiser (* gccext: *)
 320   | InitGccName of ident (* name *) * string mcode (*:*) *
 321         initialiser
 322   | IComma of string mcode (* , *)
 323   | Idots  of string mcode (* ... *) * initialiser option (* whencode *)
 324   | OptIni    of initialiser
 325   | UniqueIni of initialiser
 326
 327 and designator =
 328     DesignatorField of string mcode (* . *) * ident
 329   | DesignatorIndex of string mcode (* [ *) * expression * string mcode (* ] *)
 330   | DesignatorRange of
 331       string mcode (* [ *) * expression * string mcode (* ... *) *
 332       expression * string mcode (* ] *)
 333
 334 and initialiser = base_initialiser wrap
 335
 336 (* --------------------------------------------------------------------- *)
 337 (* Parameter *)
 338
 339 and base_parameterTypeDef =
 340     VoidParam     of fullType
 341   | Param         of fullType * ident option
 342
 343   | MetaParam     of meta_name mcode * keep_binding * inherited
 344   | MetaParamList of meta_name mcode * listlen * keep_binding * inherited
 345
 346   | PComma        of string mcode
 347
 348   | Pdots         of string mcode (* ... *)
 349   | Pcircles      of string mcode (* ooo *)
 350
 351   | OptParam      of parameterTypeDef
 352   | UniqueParam   of parameterTypeDef
 353
 354 and parameterTypeDef = base_parameterTypeDef wrap
 355
 356 and parameter_list = parameterTypeDef dots
 357
 358 (* --------------------------------------------------------------------- *)
 359 (* #define Parameters *)
 360
 361 and base_define_param =
 362     DParam        of ident
 363   | DPComma       of string mcode
 364   | DPdots        of string mcode (* ... *)
 365   | DPcircles     of string mcode (* ooo *)
 366   | OptDParam     of define_param
 367   | UniqueDParam  of define_param
 368
 369 and define_param = base_define_param wrap
 370
 371 and base_define_parameters =
 372     NoParams
 373   | DParams      of string mcode(*( *) * define_param dots * string mcode(* )*)
 374
 375 and define_parameters = base_define_parameters wrap
 376
 377 (* --------------------------------------------------------------------- *)
 378 (* positions *)
 379
 380 (* PER = keep bindings separate, ANY = collect them *)
 381 and meta_collect = PER | ALL
 382
 383 and meta_pos =
 384     MetaPos of meta_name mcode * meta_name list *
 385         meta_collect * keep_binding * inherited
 386   | NoMetaPos
 387
 388 (* --------------------------------------------------------------------- *)
 389 (* Function declaration *)
 390
 391 and storage = Static | Auto | Register | Extern
 392
 393 (* --------------------------------------------------------------------- *)
 394 (* Top-level code *)
 395
 396 and base_rule_elem =
 397     FunHeader     of mcodekind (* before the function header *) *
 398                      bool (* true if all minus, for dropping static, etc *) *
 399                      fninfo list * ident (* name *) *
 400                      string mcode (* ( *) * parameter_list *
 401                      string mcode (* ) *)
 402   | Decl          of mcodekind (* before the decl *) *
 403                      bool (* true if all minus *) * declaration
 404
 405   | SeqStart      of string mcode (* { *)
 406   | SeqEnd        of string mcode (* } *)
 407
 408   | ExprStatement of expression * string mcode (*;*)
 409   | IfHeader      of string mcode (* if *) * string mcode (* ( *) *
 410                      expression * string mcode (* ) *)
 411   | Else          of string mcode (* else *)
 412   | WhileHeader   of string mcode (* while *) * string mcode (* ( *) *
 413                      expression * string mcode (* ) *)
 414   | DoHeader      of string mcode (* do *)
 415   | WhileTail     of string mcode (* while *) * string mcode (* ( *) *
 416                      expression * string mcode (* ) *) *
 417                      string mcode (* ; *)
 418   | ForHeader     of string mcode (* for *) * string mcode (* ( *) *
 419                      expression option * string mcode (*;*) *
 420                      expression option * string mcode (*;*) *
 421                      expression option * string mcode (* ) *)
 422   | IteratorHeader of ident (* name *) * string mcode (* ( *) *
 423                      expression dots * string mcode (* ) *)
 424   | SwitchHeader  of string mcode (* switch *) * string mcode (* ( *) *
 425                      expression * string mcode (* ) *)
 426   | Break         of string mcode (* break *) * string mcode (* ; *)
 427   | Continue      of string mcode (* continue *) * string mcode (* ; *)
 428   | Label         of ident * string mcode (* : *)
 429   | Goto          of string mcode (* goto *) * ident * string mcode (* ; *)
 430   | Return        of string mcode (* return *) * string mcode (* ; *)
 431   | ReturnExpr    of string mcode (* return *) * expression *
 432                      string mcode (* ; *)
 433
 434   | MetaRuleElem  of meta_name mcode * keep_binding * inherited
 435   | MetaStmt      of meta_name mcode * keep_binding * metaStmtInfo *
 436                      inherited
 437   | MetaStmtList  of meta_name mcode * keep_binding * inherited
 438
 439   | Exp           of expression
 440   | TopExp        of expression (* for macros body *)
 441   | Ty            of fullType (* only at top level *)
 442   | TopInit       of initialiser (* only at top level *)
 443   | Include       of string mcode (*#include*) * inc_file mcode (*file *)
 444   | DefineHeader  of string mcode (* #define *) * ident (* name *) *
 445                      define_parameters (*params*)
 446   | Case          of string mcode (* case *) * expression * string mcode (*:*)
 447   | Default       of string mcode (* default *) * string mcode (*:*)
 448   | DisjRuleElem  of rule_elem list
 449
 450 and fninfo =
 451     FStorage of storage mcode
 452   | FType of fullType
 453   | FInline of string mcode
 454   | FAttr of string mcode
 455
 456 and metaStmtInfo =
 457     NotSequencible | SequencibleAfterDots of dots_whencode list | Sequencible
 458
 459 and rule_elem = base_rule_elem wrap
 460
 461 and base_statement =
 462     Seq           of rule_elem (* { *) *
 463                      statement dots * rule_elem (* } *)
 464   | IfThen        of rule_elem (* header *) * statement * end_info
 465   | IfThenElse    of rule_elem (* header *) * statement *
 466                      rule_elem (* else *) * statement * end_info
 467   | While         of rule_elem (* header *) * statement * end_info
 468   | Do            of rule_elem (* do *) * statement * rule_elem (* tail *)
 469   | For           of rule_elem (* header *) * statement * end_info
 470   | Iterator      of rule_elem (* header *) * statement * end_info (*enditer*)
 471   | Switch        of rule_elem (* header *) * rule_elem (* { *) *
 472                      statement (*decl*) dots * case_line list * rule_elem(*}*)
 473   | Atomic        of rule_elem
 474   | Disj          of statement dots list
 475   | Nest          of string mcode (* <.../<+... *) * statement dots *
 476                      string mcode (* ...>/...+> *) *
 477                      (statement dots,statement) whencode list * multi *
 478                      dots_whencode list * dots_whencode list
 479   | FunDecl       of rule_elem (* header *) * rule_elem (* { *) *
 480                      statement dots * rule_elem (* } *)
 481   | Define        of rule_elem (* header *) * statement dots
 482   | Dots          of string mcode (* ... *) *
 483                      (statement dots,statement) whencode list *
 484                      dots_whencode list * dots_whencode list
 485   | Circles       of string mcode (* ooo *) *
 486                      (statement dots,statement) whencode list *
 487                      dots_whencode list * dots_whencode list
 488   | Stars         of string mcode (* *** *) *
 489                      (statement dots,statement) whencode list *
 490                      dots_whencode list * dots_whencode list
 491   | OptStm        of statement
 492   | UniqueStm     of statement
 493
 494 and ('a,'b) whencode =
 495     WhenNot of 'a
 496   | WhenAlways of 'b
 497   | WhenModifier of when_modifier
 498   | WhenNotTrue of rule_elem
 499   | WhenNotFalse of rule_elem
 500
 501 and when_modifier =
 502     WhenAny
 503   | WhenStrict
 504   | WhenForall
 505   | WhenExists
 506
 507 and dots_whencode =
 508     WParen of rule_elem * meta_name (*pren_var*)
 509   | Other of statement
 510   | Other_dots of statement dots
 511
 512 and statement = base_statement wrap
 513
 514 and base_case_line =
 515     CaseLine of rule_elem (* case/default header *) * statement dots
 516   | OptCase of case_line
 517
 518 and case_line = base_case_line wrap
 519
 520 and inc_file =
 521     Local of inc_elem list
 522   | NonLocal of inc_elem list
 523
 524 and inc_elem =
 525     IncPath of string
 526   | IncDots
 527
 528 and base_top_level =
 529     DECL of statement
 530   | CODE of statement dots
 531   | FILEINFO of string mcode (* old file *) * string mcode (* new file *)
 532   | ERRORWORDS of expression list
 533
 534 and top_level = base_top_level wrap
 535
 536 and rulename =
 537     CocciRulename of string option * dependency * string list * string list *
 538         exists * bool
 539       (* true if the whole thing is an expression *)
 540   | GeneratedRulename of string option * dependency *
 541         string list * string list * exists * bool
 542       (* true if the whole thing is an expression *)
 543   | ScriptRulename of string option (* name *) * string (* language *) *
 544         dependency
 545   | InitialScriptRulename of string option (* name *) * string (* language *) *
 546         dependency
 547   | FinalScriptRulename of string option (* name *) * string (* language *) *
 548         dependency
 549
 550 and ruletype = Normal | Generated
 551
 552 and rule =
 553     CocciRule of string (* name *) *
 554         (dependency * string list (* dropped isos *) * exists) *
 555         top_level list * bool list (* true if generates an exp *) * ruletype
 556   | ScriptRule of string (* name *) *
 557       string * dependency *
 558         (script_meta_name * meta_name * metavar) list *
 559         meta_name list (*script vars*) * string
 560   | InitialScriptRule of  string (* name *) *
 561         string * dependency * string
 562   | FinalScriptRule of  string (* name *) *
 563         string * dependency * string
 564
 565 and script_meta_name = string option (*string*) * string option (*ast*)
 566
 567 and dependency =
 568     Dep of string (* rule applies for the current binding *)
 569   | AntiDep of string (* rule doesn't apply for the current binding *)
 570   | EverDep of string (* rule applies for some binding *)
 571   | NeverDep of string (* rule never applies for any binding *)
 572   | AndDep of dependency * dependency
 573   | OrDep of dependency * dependency
 574   | NoDep | FailDep
 575
 576 and rule_with_metavars = metavar list * rule
 577
 578 and anything =
 579     FullTypeTag         of fullType
 580   | BaseTypeTag         of baseType
 581   | StructUnionTag      of structUnion
 582   | SignTag             of sign
 583   | IdentTag            of ident
 584   | ExpressionTag       of expression
 585   | ConstantTag         of constant
 586   | UnaryOpTag          of unaryOp
 587   | AssignOpTag         of assignOp
 588   | FixOpTag            of fixOp
 589   | BinaryOpTag         of binaryOp
 590   | ArithOpTag          of arithOp
 591   | LogicalOpTag        of logicalOp
 592   | DeclarationTag      of declaration
 593   | InitTag             of initialiser
 594   | StorageTag          of storage
 595   | IncFileTag          of inc_file
 596   | Rule_elemTag        of rule_elem
 597   | StatementTag        of statement
 598   | CaseLineTag         of case_line
 599   | ConstVolTag         of const_vol
 600   | Token               of string * info option
 601   | Pragma              of added_string list
 602   | Code                of top_level
 603   | ExprDotsTag         of expression dots
 604   | ParamDotsTag        of parameterTypeDef dots
 605   | StmtDotsTag         of statement dots
 606   | DeclDotsTag         of declaration dots
 607   | TypeCTag            of typeC
 608   | ParamTag            of parameterTypeDef
 609   | SgrepStartTag       of string
 610   | SgrepEndTag         of string
 611
 612 (* --------------------------------------------------------------------- *)
 613
 614 and exists = Exists | Forall | Undetermined
 615
 616 (* --------------------------------------------------------------------- *)
 617
 618 val mkToken : string -> anything
 619
 620 val undots : 'a dots -> 'a list
 621
 622 val lub_count : count -> count -> count
 623
 624 (* --------------------------------------------------------------------- *)
 625
 626 val rewrap : 'a wrap -> 'b -> 'b wrap
 627 val rewrap_mcode : 'a mcode -> 'a -> 'a mcode
 628 val unwrap : 'a wrap -> 'a
 629 val unwrap_mcode : 'a mcode -> 'a
 630 val get_mcodekind : 'a mcode -> mcodekind
 631 val get_line : 'a wrap -> line
 632 val get_mcode_line : 'a mcode -> line
 633 val get_mcode_col : 'a mcode -> int
 634 val get_fvs : 'a wrap -> meta_name list
 635 val get_wcfvs : ('a wrap,'b wrap) whencode list -> meta_name list
 636 val set_fvs : meta_name list -> 'a wrap -> 'a wrap
 637 val get_mfvs : 'a wrap -> meta_name list
 638 val set_mfvs : meta_name list -> 'a wrap -> 'a wrap
 639 val get_fresh : 'a wrap -> (meta_name * seed) list
 640 val get_inherited : 'a wrap -> meta_name list
 641 val get_saved : 'a wrap -> meta_name list
 642 val get_dots_bef_aft : statement -> dots_bef_aft
 643 val set_dots_bef_aft : dots_bef_aft -> statement -> statement
 644 val get_pos : 'a wrap -> meta_name mcode option
 645 val set_pos : 'a wrap -> meta_name mcode option -> 'a wrap
 646 val get_test_exp : 'a wrap -> bool
 647 val set_test_exp : expression -> expression
 648 val get_isos : 'a wrap -> (string*anything) list
 649 val set_isos : 'a wrap -> (string*anything) list -> 'a wrap
 650 val get_pos_var : 'a mcode -> meta_pos
 651 val set_pos_var : meta_pos -> 'a mcode -> 'a mcode
 652 val drop_pos : 'a mcode -> 'a mcode
 653
 654 val get_meta_name : metavar -> meta_name
 655
 656 val tag2c : anything -> string
 657
 658 val no_info : info
 659
 660 val make_meta_rule_elem :
 661     string -> mcodekind ->
 662       (meta_name list * (meta_name * seed) list * meta_name list) ->
 663       rule_elem
 664
 665 val make_meta_decl :
 666     string -> mcodekind ->
 667       (meta_name list * (meta_name * seed) list * meta_name list) ->
 668       declaration
 669
 670 val make_term : 'a -> 'a wrap
 671 val make_mcode : 'a -> 'a mcode
 672
 673 val equal_pos : fixpos -> fixpos -> bool