parsing_cocci/ast_cocci.mli

   1 (*
   2  * Copyright 2005-2010, Ecole des Mines de Nantes, University of Copenhagen
   3  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
   4  * This file is part of Coccinelle.
   5  *
   6  * Coccinelle is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, according to version 2 of the License.
   9  *
  10  * Coccinelle is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The authors reserve the right to distribute this or future versions of
  19  * Coccinelle under other licenses.
  20  *)
  21
  22
  23 (* Constraints on Meta-* Identifiers, Functions *)
  24 type idconstraint =
  25     IdNoConstraint
  26   | IdNegIdSet      of string list
  27   | IdRegExp        of string * Str.regexp
  28   | IdNotRegExp     of string * Str.regexp
  29
  30 (* --------------------------------------------------------------------- *)
  31 (* Modified code *)
  32
  33 type added_string = Noindent of string | Indent of string
  34
  35 type info = { line : int; column : int;
  36               strbef : (added_string * int (* line *) * int (* col *)) list;
  37               straft : (added_string * int (* line *) * int (* col *)) list }
  38 type line = int
  39 type meta_name = string * string
  40 type 'a wrap =
  41     {node : 'a;
  42       node_line : line;
  43       free_vars : meta_name list; (*free vars*)
  44       minus_free_vars : meta_name list; (*minus free vars*)
  45       fresh_vars : (meta_name * seed) list; (*fresh vars*)
  46       inherited : meta_name list; (*inherited vars*)
  47       saved_witness : meta_name list; (*witness vars*)
  48       bef_aft : dots_bef_aft;
  49       pos_info : meta_name mcode option; (* pos info, try not to duplicate *)
  50       true_if_test_exp : bool;(* true if "test_exp from iso", only for exprs *)
  51       (* isos relevant to the term; ultimately only used for rule_elems *)
  52       iso_info : (string*anything) list }
  53
  54 and 'a befaft =
  55     BEFORE      of 'a list list * count
  56   | AFTER       of 'a list list * count
  57   | BEFOREAFTER of 'a list list * 'a list list * count
  58   | NOTHING
  59
  60 and 'a mcode = 'a * info * mcodekind * meta_pos (* pos variable *)
  61  (* pos is an offset indicating where in the C code the mcodekind has an
  62  effect *)
  63  and mcodekind =
  64     MINUS       of pos * int list * int * anything list list
  65   | CONTEXT     of pos * anything befaft
  66   | PLUS        of count
  67  and count = ONE (* + *) | MANY (* ++ *)
  68  and fixpos =
  69     Real of int (* charpos *) | Virt of int * int (* charpos + offset *)
  70  and pos = NoPos | DontCarePos | FixPos of (fixpos * fixpos)
  71
  72 and dots_bef_aft =
  73     NoDots
  74   | AddingBetweenDots of statement * int (*index of let var*)
  75   | DroppingBetweenDots of statement * int (*index of let var*)
  76
  77 and inherited = Type_cocci.inherited
  78 and keep_binding = Type_cocci.keep_binding
  79 and multi = bool (*true if a nest is one or more, false if it is zero or more*)
  80
  81 and end_info =
  82     meta_name list (*free vars*) * (meta_name * seed) list (*fresh*) *
  83       meta_name list (*inherited vars*) * mcodekind
  84
  85 (* --------------------------------------------------------------------- *)
  86 (* Metavariables *)
  87
  88 and arity = UNIQUE | OPT | MULTI | NONE
  89
  90 and metavar =
  91     MetaIdDecl of arity * meta_name (* name *)
  92   | MetaFreshIdDecl of meta_name (* name *) * seed (* seed *)
  93   | MetaTypeDecl of arity * meta_name (* name *)
  94   | MetaInitDecl of arity * meta_name (* name *)
  95   | MetaListlenDecl of meta_name (* name *)
  96   | MetaParamDecl of arity * meta_name (* name *)
  97   | MetaParamListDecl of arity * meta_name (*name*) * meta_name option (*len*)
  98   | MetaConstDecl of
  99       arity * meta_name (* name *) * Type_cocci.typeC list option
 100   | MetaErrDecl of arity * meta_name (* name *)
 101   | MetaExpDecl of
 102       arity * meta_name (* name *) * Type_cocci.typeC list option
 103   | MetaIdExpDecl of
 104       arity * meta_name (* name *) * Type_cocci.typeC list option
 105   | MetaLocalIdExpDecl of
 106       arity * meta_name (* name *) * Type_cocci.typeC list option
 107   | MetaExpListDecl of arity * meta_name (*name*) * meta_name option (*len*)
 108   | MetaStmDecl of arity * meta_name (* name *)
 109   | MetaStmListDecl of arity * meta_name (* name *)
 110   | MetaFuncDecl of arity * meta_name (* name *)
 111   | MetaLocalFuncDecl of arity * meta_name (* name *)
 112   | MetaPosDecl of arity * meta_name (* name *)
 113   | MetaDeclarerDecl of arity * meta_name (* name *)
 114   | MetaIteratorDecl of arity * meta_name (* name *)
 115
 116 and seed = NoVal | StringSeed of string | ListSeed of seed_elem list
 117 and seed_elem = SeedString of string | SeedId of meta_name
 118
 119 (* --------------------------------------------------------------------- *)
 120 (* --------------------------------------------------------------------- *)
 121 (* Dots *)
 122
 123 and 'a base_dots =
 124     DOTS of 'a list
 125   | CIRCLES of 'a list
 126   | STARS of 'a list
 127
 128 and 'a dots = 'a base_dots wrap
 129
 130 (* --------------------------------------------------------------------- *)
 131 (* Identifier *)
 132
 133 and base_ident =
 134     Id            of string mcode
 135   | MetaId        of meta_name mcode * idconstraint * keep_binding * inherited
 136   | MetaFunc      of meta_name mcode * idconstraint * keep_binding * inherited
 137   | MetaLocalFunc of meta_name mcode * idconstraint * keep_binding * inherited
 138
 139   | OptIdent      of ident
 140   | UniqueIdent   of ident
 141
 142 and ident = base_ident wrap
 143
 144 (* --------------------------------------------------------------------- *)
 145 (* Expression *)
 146
 147 and base_expression =
 148     Ident          of ident
 149   | Constant       of constant mcode
 150   | FunCall        of expression * string mcode (* ( *) *
 151                       expression dots * string mcode (* ) *)
 152   | Assignment     of expression * assignOp mcode * expression * bool
 153   | CondExpr       of expression * string mcode (* ? *) * expression option *
 154                       string mcode (* : *) * expression
 155   | Postfix        of expression * fixOp mcode
 156   | Infix          of expression * fixOp mcode
 157   | Unary          of expression * unaryOp mcode
 158   | Binary         of expression * binaryOp mcode * expression
 159   | Nested         of expression * binaryOp mcode * expression
 160   | ArrayAccess    of expression * string mcode (* [ *) * expression *
 161                       string mcode (* ] *)
 162   | RecordAccess   of expression * string mcode (* . *) * ident
 163   | RecordPtAccess of expression * string mcode (* -> *) * ident
 164   | Cast           of string mcode (* ( *) * fullType * string mcode (* ) *) *
 165                       expression
 166
 167   | SizeOfExpr     of string mcode (* sizeof *) * expression
 168   | SizeOfType     of string mcode (* sizeof *) * string mcode (* ( *) *
 169                       fullType * string mcode (* ) *)
 170   | TypeExp        of fullType
 171
 172   | Paren          of string mcode (* ( *) * expression *
 173                       string mcode (* ) *)
 174
 175   | MetaErr        of meta_name mcode * constraints * keep_binding *
 176                       inherited
 177   | MetaExpr       of meta_name mcode * constraints * keep_binding *
 178                       Type_cocci.typeC list option * form * inherited
 179   | MetaExprList   of meta_name mcode * listlen option *
 180                       keep_binding * inherited (* only in arg lists *)
 181
 182   | EComma         of string mcode (* only in arg lists *)
 183
 184   | DisjExpr       of expression list
 185   | NestExpr       of expression dots * expression option * multi
 186
 187   (* can appear in arg lists, and also inside Nest, as in:
 188    if(< ... X ... Y ...>)
 189    In the following, the expression option is the WHEN  *)
 190   | Edots          of string mcode (* ... *) * expression option
 191   | Ecircles       of string mcode (* ooo *) * expression option
 192   | Estars         of string mcode (* *** *) * expression option
 193
 194   | OptExp         of expression
 195   | UniqueExp      of expression
 196
 197 and constraints =
 198     NoConstraint
 199   | NotIdCstrt     of idconstraint
 200   | NotExpCstrt    of expression list
 201
 202 and form = ANY | ID | LocalID | CONST (* form for MetaExp *)
 203
 204 and expression = base_expression wrap
 205
 206 and listlen = meta_name mcode * keep_binding * inherited
 207
 208 and  unaryOp = GetRef | DeRef | UnPlus |  UnMinus | Tilde | Not
 209 and  assignOp = SimpleAssign | OpAssign of arithOp
 210 and  fixOp = Dec | Inc
 211
 212 and  binaryOp = Arith of arithOp | Logical of logicalOp
 213 and  arithOp =
 214     Plus | Minus | Mul | Div | Mod | DecLeft | DecRight | And | Or | Xor
 215 and  logicalOp = Inf | Sup | InfEq | SupEq | Eq | NotEq | AndLog | OrLog
 216
 217 and constant =
 218     String of string
 219   | Char   of string
 220   | Int    of string
 221   | Float  of string
 222
 223 (* --------------------------------------------------------------------- *)
 224 (* Types *)
 225
 226 and base_fullType =
 227     Type            of const_vol mcode option * typeC
 228   | DisjType        of fullType list (* only after iso *)
 229   | OptType         of fullType
 230   | UniqueType      of fullType
 231
 232 and base_typeC =
 233     BaseType        of baseType * string mcode list (* Yoann style *)
 234   | SignedT         of sign mcode * typeC option
 235   | Pointer         of fullType * string mcode (* * *)
 236   | FunctionPointer of fullType *
 237                   string mcode(* ( *)*string mcode(* * *)*string mcode(* ) *)*
 238                   string mcode (* ( *)*parameter_list*string mcode(* ) *)
 239   | FunctionType     of bool (* true if all minus for dropping return type *) *
 240                    fullType option *
 241                    string mcode (* ( *) * parameter_list *
 242                    string mcode (* ) *)
 243   | Array           of fullType * string mcode (* [ *) *
 244                        expression option * string mcode (* ] *)
 245   | EnumName        of string mcode (*enum*) * ident (* name *)
 246   | StructUnionName of structUnion mcode * ident option (* name *)
 247   | StructUnionDef  of fullType (* either StructUnionName or metavar *) *
 248         string mcode (* { *) * declaration dots * string mcode (* } *)
 249   | TypeName        of string mcode
 250
 251   | MetaType        of meta_name mcode * keep_binding * inherited
 252
 253 and fullType = base_fullType wrap
 254 and typeC = base_typeC wrap
 255
 256 and baseType = VoidType | CharType | ShortType | IntType | DoubleType
 257   | FloatType | LongType | LongLongType
 258
 259 and structUnion = Struct | Union
 260
 261 and sign = Signed | Unsigned
 262
 263 and const_vol = Const | Volatile
 264
 265 (* --------------------------------------------------------------------- *)
 266 (* Variable declaration *)
 267 (* Even if the Cocci program specifies a list of declarations, they are
 268    split out into multiple declarations of a single variable each. *)
 269
 270 and base_declaration =
 271     Init of storage mcode option * fullType * ident * string mcode (*=*) *
 272         initialiser * string mcode (*;*)
 273   | UnInit of storage mcode option * fullType * ident * string mcode (* ; *)
 274   | TyDecl of fullType * string mcode (* ; *)
 275   | MacroDecl of ident (* name *) * string mcode (* ( *) *
 276         expression dots * string mcode (* ) *) * string mcode (* ; *)
 277   | Typedef of string mcode (*typedef*) * fullType * typeC * string mcode (*;*)
 278   | DisjDecl   of declaration list
 279   | Ddots    of string mcode (* ... *) * declaration option (* whencode *)
 280
 281   | MetaDecl of meta_name mcode * keep_binding * inherited
 282
 283   | OptDecl    of declaration
 284   | UniqueDecl of declaration
 285
 286 and declaration = base_declaration wrap
 287
 288 (* --------------------------------------------------------------------- *)
 289 (* Initializers *)
 290
 291 and base_initialiser =
 292     MetaInit of meta_name mcode * keep_binding * inherited
 293   | InitExpr of expression
 294   | InitList of string mcode (*{*) * initialiser list * string mcode (*}*) *
 295         initialiser list (* whencode: elements that shouldn't appear in init *)
 296   | InitGccExt of
 297       designator list (* name *) * string mcode (*=*) *
 298         initialiser (* gccext: *)
 299   | InitGccName of ident (* name *) * string mcode (*:*) *
 300         initialiser
 301   | IComma of string mcode (* , *)
 302   | OptIni    of initialiser
 303   | UniqueIni of initialiser
 304
 305 and designator =
 306     DesignatorField of string mcode (* . *) * ident
 307   | DesignatorIndex of string mcode (* [ *) * expression * string mcode (* ] *)
 308   | DesignatorRange of
 309       string mcode (* [ *) * expression * string mcode (* ... *) *
 310       expression * string mcode (* ] *)
 311
 312 and initialiser = base_initialiser wrap
 313
 314 (* --------------------------------------------------------------------- *)
 315 (* Parameter *)
 316
 317 and base_parameterTypeDef =
 318     VoidParam     of fullType
 319   | Param         of fullType * ident option
 320
 321   | MetaParam     of meta_name mcode * keep_binding * inherited
 322   | MetaParamList of meta_name mcode * listlen option * keep_binding *
 323                      inherited
 324
 325   | PComma        of string mcode
 326
 327   | Pdots         of string mcode (* ... *)
 328   | Pcircles      of string mcode (* ooo *)
 329
 330   | OptParam      of parameterTypeDef
 331   | UniqueParam   of parameterTypeDef
 332
 333 and parameterTypeDef = base_parameterTypeDef wrap
 334
 335 and parameter_list = parameterTypeDef dots
 336
 337 (* --------------------------------------------------------------------- *)
 338 (* #define Parameters *)
 339
 340 and base_define_param =
 341     DParam        of ident
 342   | DPComma       of string mcode
 343   | DPdots        of string mcode (* ... *)
 344   | DPcircles     of string mcode (* ooo *)
 345   | OptDParam     of define_param
 346   | UniqueDParam  of define_param
 347
 348 and define_param = base_define_param wrap
 349
 350 and base_define_parameters =
 351     NoParams
 352   | DParams      of string mcode(*( *) * define_param dots * string mcode(* )*)
 353
 354 and define_parameters = base_define_parameters wrap
 355
 356 (* --------------------------------------------------------------------- *)
 357 (* positions *)
 358
 359 (* PER = keep bindings separate, ANY = collect them *)
 360 and meta_collect = PER | ALL
 361
 362 and meta_pos =
 363     MetaPos of meta_name mcode * meta_name list *
 364         meta_collect * keep_binding * inherited
 365   | NoMetaPos
 366
 367 (* --------------------------------------------------------------------- *)
 368 (* Function declaration *)
 369
 370 and storage = Static | Auto | Register | Extern
 371
 372 (* --------------------------------------------------------------------- *)
 373 (* Top-level code *)
 374
 375 and base_rule_elem =
 376     FunHeader     of mcodekind (* before the function header *) *
 377                      bool (* true if all minus, for dropping static, etc *) *
 378                      fninfo list * ident (* name *) *
 379                      string mcode (* ( *) * parameter_list *
 380                      string mcode (* ) *)
 381   | Decl          of mcodekind (* before the decl *) *
 382                      bool (* true if all minus *) * declaration
 383
 384   | SeqStart      of string mcode (* { *)
 385   | SeqEnd        of string mcode (* } *)
 386
 387   | ExprStatement of expression * string mcode (*;*)
 388   | IfHeader      of string mcode (* if *) * string mcode (* ( *) *
 389                      expression * string mcode (* ) *)
 390   | Else          of string mcode (* else *)
 391   | WhileHeader   of string mcode (* while *) * string mcode (* ( *) *
 392                      expression * string mcode (* ) *)
 393   | DoHeader      of string mcode (* do *)
 394   | WhileTail     of string mcode (* while *) * string mcode (* ( *) *
 395                      expression * string mcode (* ) *) *
 396                      string mcode (* ; *)
 397   | ForHeader     of string mcode (* for *) * string mcode (* ( *) *
 398                      expression option * string mcode (*;*) *
 399                      expression option * string mcode (*;*) *
 400                      expression option * string mcode (* ) *)
 401   | IteratorHeader of ident (* name *) * string mcode (* ( *) *
 402                      expression dots * string mcode (* ) *)
 403   | SwitchHeader  of string mcode (* switch *) * string mcode (* ( *) *
 404                      expression * string mcode (* ) *)
 405   | Break         of string mcode (* break *) * string mcode (* ; *)
 406   | Continue      of string mcode (* continue *) * string mcode (* ; *)
 407   | Label         of ident * string mcode (* : *)
 408   | Goto          of string mcode (* goto *) * ident * string mcode (* ; *)
 409   | Return        of string mcode (* return *) * string mcode (* ; *)
 410   | ReturnExpr    of string mcode (* return *) * expression *
 411                      string mcode (* ; *)
 412
 413   | MetaRuleElem  of meta_name mcode * keep_binding * inherited
 414   | MetaStmt      of meta_name mcode * keep_binding * metaStmtInfo *
 415                      inherited
 416   | MetaStmtList  of meta_name mcode * keep_binding * inherited
 417
 418   | Exp           of expression
 419   | TopExp        of expression (* for macros body *)
 420   | Ty            of fullType (* only at top level *)
 421   | TopInit       of initialiser (* only at top level *)
 422   | Include       of string mcode (*#include*) * inc_file mcode (*file *)
 423   | DefineHeader  of string mcode (* #define *) * ident (* name *) *
 424                      define_parameters (*params*)
 425   | Case          of string mcode (* case *) * expression * string mcode (*:*)
 426   | Default       of string mcode (* default *) * string mcode (*:*)
 427   | DisjRuleElem  of rule_elem list
 428
 429 and fninfo =
 430     FStorage of storage mcode
 431   | FType of fullType
 432   | FInline of string mcode
 433   | FAttr of string mcode
 434
 435 and metaStmtInfo =
 436     NotSequencible | SequencibleAfterDots of dots_whencode list | Sequencible
 437
 438 and rule_elem = base_rule_elem wrap
 439
 440 and base_statement =
 441     Seq           of rule_elem (* { *) *
 442                      statement dots * rule_elem (* } *)
 443   | IfThen        of rule_elem (* header *) * statement * end_info
 444   | IfThenElse    of rule_elem (* header *) * statement *
 445                      rule_elem (* else *) * statement * end_info
 446   | While         of rule_elem (* header *) * statement * end_info
 447   | Do            of rule_elem (* do *) * statement * rule_elem (* tail *)
 448   | For           of rule_elem (* header *) * statement * end_info
 449   | Iterator      of rule_elem (* header *) * statement * end_info (*enditer*)
 450   | Switch        of rule_elem (* header *) * rule_elem (* { *) *
 451                      statement (*decl*) dots * case_line list * rule_elem(*}*)
 452   | Atomic        of rule_elem
 453   | Disj          of statement dots list
 454   | Nest          of statement dots *
 455                      (statement dots,statement) whencode list * multi *
 456                      dots_whencode list * dots_whencode list
 457   | FunDecl       of rule_elem (* header *) * rule_elem (* { *) *
 458                      statement dots * rule_elem (* } *)
 459   | Define        of rule_elem (* header *) * statement dots
 460   | Dots          of string mcode (* ... *) *
 461                      (statement dots,statement) whencode list *
 462                      dots_whencode list * dots_whencode list
 463   | Circles       of string mcode (* ooo *) *
 464                      (statement dots,statement) whencode list *
 465                      dots_whencode list * dots_whencode list
 466   | Stars         of string mcode (* *** *) *
 467                      (statement dots,statement) whencode list *
 468                      dots_whencode list * dots_whencode list
 469   | OptStm        of statement
 470   | UniqueStm     of statement
 471
 472 and ('a,'b) whencode =
 473     WhenNot of 'a
 474   | WhenAlways of 'b
 475   | WhenModifier of when_modifier
 476   | WhenNotTrue of rule_elem
 477   | WhenNotFalse of rule_elem
 478
 479 and when_modifier =
 480     WhenAny
 481   | WhenStrict
 482   | WhenForall
 483   | WhenExists
 484
 485 and dots_whencode =
 486     WParen of rule_elem * meta_name (*pren_var*)
 487   | Other of statement
 488   | Other_dots of statement dots
 489
 490 and statement = base_statement wrap
 491
 492 and base_case_line =
 493     CaseLine of rule_elem (* case/default header *) * statement dots
 494   | OptCase of case_line
 495
 496 and case_line = base_case_line wrap
 497
 498 and inc_file =
 499     Local of inc_elem list
 500   | NonLocal of inc_elem list
 501
 502 and inc_elem =
 503     IncPath of string
 504   | IncDots
 505
 506 and base_top_level =
 507     DECL of statement
 508   | CODE of statement dots
 509   | FILEINFO of string mcode (* old file *) * string mcode (* new file *)
 510   | ERRORWORDS of expression list
 511
 512 and top_level = base_top_level wrap
 513
 514 and rulename =
 515     CocciRulename of string option * dependency * string list * string list *
 516         exists * bool
 517       (* true if the whole thing is an expression *)
 518   | GeneratedRulename of string option * dependency *
 519         string list * string list * exists * bool
 520       (* true if the whole thing is an expression *)
 521   | ScriptRulename of string * dependency
 522   | InitialScriptRulename of string * dependency
 523   | FinalScriptRulename of string * dependency
 524
 525 and ruletype = Normal | Generated
 526
 527 and rule =
 528     CocciRule of string (* name *) *
 529         (dependency * string list (* dropped isos *) * exists) *
 530         top_level list * bool list (* true if generates an exp *) * ruletype
 531   | ScriptRule of string * dependency * (string * meta_name) list * string
 532   | InitialScriptRule of string * dependency * string
 533   | FinalScriptRule of string * dependency * string
 534
 535 and dependency =
 536     Dep of string (* rule applies for the current binding *)
 537   | AntiDep of string (* rule doesn't apply for the current binding *)
 538   | EverDep of string (* rule applies for some binding *)
 539   | NeverDep of string (* rule never applies for any binding *)
 540   | AndDep of dependency * dependency
 541   | OrDep of dependency * dependency
 542   | NoDep | FailDep
 543
 544 and rule_with_metavars = metavar list * rule
 545
 546 and anything =
 547     FullTypeTag         of fullType
 548   | BaseTypeTag         of baseType
 549   | StructUnionTag      of structUnion
 550   | SignTag             of sign
 551   | IdentTag            of ident
 552   | ExpressionTag       of expression
 553   | ConstantTag         of constant
 554   | UnaryOpTag          of unaryOp
 555   | AssignOpTag         of assignOp
 556   | FixOpTag            of fixOp
 557   | BinaryOpTag         of binaryOp
 558   | ArithOpTag          of arithOp
 559   | LogicalOpTag        of logicalOp
 560   | DeclarationTag      of declaration
 561   | InitTag             of initialiser
 562   | StorageTag          of storage
 563   | IncFileTag          of inc_file
 564   | Rule_elemTag        of rule_elem
 565   | StatementTag        of statement
 566   | CaseLineTag         of case_line
 567   | ConstVolTag         of const_vol
 568   | Token               of string * info option
 569   | Pragma              of added_string list
 570   | Code                of top_level
 571   | ExprDotsTag         of expression dots
 572   | ParamDotsTag        of parameterTypeDef dots
 573   | StmtDotsTag         of statement dots
 574   | DeclDotsTag         of declaration dots
 575   | TypeCTag            of typeC
 576   | ParamTag            of parameterTypeDef
 577   | SgrepStartTag       of string
 578   | SgrepEndTag         of string
 579
 580 (* --------------------------------------------------------------------- *)
 581
 582 and exists = Exists | Forall | Undetermined
 583
 584 (* --------------------------------------------------------------------- *)
 585
 586 val mkToken : string -> anything
 587
 588 val undots : 'a dots -> 'a list
 589
 590 val lub_count : count -> count -> count
 591
 592 (* --------------------------------------------------------------------- *)
 593
 594 val rewrap : 'a wrap -> 'b -> 'b wrap
 595 val rewrap_mcode : 'a mcode -> 'a -> 'a mcode
 596 val unwrap : 'a wrap -> 'a
 597 val unwrap_mcode : 'a mcode -> 'a
 598 val get_mcodekind : 'a mcode -> mcodekind
 599 val get_line : 'a wrap -> line
 600 val get_mcode_line : 'a mcode -> line
 601 val get_mcode_col : 'a mcode -> int
 602 val get_fvs : 'a wrap -> meta_name list
 603 val get_wcfvs : ('a wrap,'b wrap) whencode list -> meta_name list
 604 val set_fvs : meta_name list -> 'a wrap -> 'a wrap
 605 val get_mfvs : 'a wrap -> meta_name list
 606 val set_mfvs : meta_name list -> 'a wrap -> 'a wrap
 607 val get_fresh : 'a wrap -> (meta_name * seed) list
 608 val get_inherited : 'a wrap -> meta_name list
 609 val get_saved : 'a wrap -> meta_name list
 610 val get_dots_bef_aft : statement -> dots_bef_aft
 611 val set_dots_bef_aft : dots_bef_aft -> statement -> statement
 612 val get_pos : 'a wrap -> meta_name mcode option
 613 val set_pos : 'a wrap -> meta_name mcode option -> 'a wrap
 614 val get_test_exp : 'a wrap -> bool
 615 val set_test_exp : expression -> expression
 616 val get_isos : 'a wrap -> (string*anything) list
 617 val set_isos : 'a wrap -> (string*anything) list -> 'a wrap
 618 val get_pos_var : 'a mcode -> meta_pos
 619 val set_pos_var : meta_pos -> 'a mcode -> 'a mcode
 620 val drop_pos : 'a mcode -> 'a mcode
 621
 622 val get_meta_name : metavar -> meta_name
 623
 624 val tag2c : anything -> string
 625
 626 val no_info : info
 627
 628 val make_meta_rule_elem :
 629     string -> mcodekind ->
 630       (meta_name list * (meta_name * seed) list * meta_name list) ->
 631       rule_elem
 632
 633 val make_meta_decl :
 634     string -> mcodekind ->
 635       (meta_name list * (meta_name * seed) list * meta_name list) ->
 636       declaration
 637
 638 val make_term : 'a -> 'a wrap
 639 val make_mcode : 'a -> 'a mcode
 640
 641 val equal_pos : fixpos -> fixpos -> bool