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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: tacexpr.ml,v 1.33.2.2 2005/01/21 17:14:09 herbelin Exp $ i*)
open Names
open Topconstr
open Libnames
open Nametab
open Rawterm
open Util
open Genarg
open Pattern
type 'a or_metaid = AI of 'a | MetaId of loc * string
type direction_flag = bool (* true = Left-to-right false = right-to-right *)
type raw_red_flag =
| FBeta
| FIota
| FZeta
| FConst of reference list
| FDeltaBut of reference list
let make_red_flag =
let rec add_flag red = function
| [] -> red
| FBeta :: lf -> add_flag { red with rBeta = true } lf
| FIota :: lf -> add_flag { red with rIota = true } lf
| FZeta :: lf -> add_flag { red with rZeta = true } lf
| FConst l :: lf ->
if red.rDelta then
error
"Cannot set both constants to unfold and constants not to unfold";
add_flag { red with rConst = list_union red.rConst l } lf
| FDeltaBut l :: lf ->
if red.rConst <> [] & not red.rDelta then
error
"Cannot set both constants to unfold and constants not to unfold";
add_flag
{ red with rConst = list_union red.rConst l; rDelta = true }
lf
in
add_flag
{rBeta = false; rIota = false; rZeta = false; rDelta = false; rConst = []}
type hyp_location_flag = (* To distinguish body and type of local defs *)
| InHyp
| InHypTypeOnly
| InHypValueOnly
type 'a raw_hyp_location =
'a * int list * (hyp_location_flag * hyp_location_flag option ref)
type 'a induction_arg =
| ElimOnConstr of 'a
| ElimOnIdent of identifier located
| ElimOnAnonHyp of int
type inversion_kind =
| SimpleInversion
| FullInversion
| FullInversionClear
type ('c,'id) inversion_strength =
| NonDepInversion of inversion_kind * 'id list * intro_pattern_expr option
| DepInversion of inversion_kind * 'c option * intro_pattern_expr option
| InversionUsing of 'c * 'id list
type ('a,'b) location = HypLocation of 'a | ConclLocation of 'b
type 'id gsimple_clause = ('id raw_hyp_location) option
(* onhyps:
[None] means *on every hypothesis*
[Some l] means on hypothesis belonging to l *)
type 'id gclause =
{ onhyps : 'id raw_hyp_location list option;
onconcl : bool;
concl_occs :int list }
let simple_clause_of = function
{ onhyps = Some[scl]; onconcl = false } -> Some scl
| { onhyps = Some []; onconcl = true; concl_occs=[] } -> None
| _ -> error "not a simple clause (one hypothesis or conclusion)"
type pattern_expr = constr_expr
(* Type of patterns *)
type 'a match_pattern =
| Term of 'a
| Subterm of identifier option * 'a
(* Type of hypotheses for a Match Context rule *)
type 'a match_context_hyps =
| Hyp of name located * 'a match_pattern
(* Type of a Match rule for Match Context and Match *)
type ('a,'t) match_rule =
| Pat of 'a match_context_hyps list * 'a match_pattern * 't
| All of 't
type ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_atomic_tactic_expr =
(* Basic tactics *)
| TacIntroPattern of intro_pattern_expr list
| TacIntrosUntil of quantified_hypothesis
| TacIntroMove of identifier option * identifier located option
| TacAssumption
| TacExact of 'constr
| TacApply of 'constr with_bindings
| TacElim of 'constr with_bindings * 'constr with_bindings option
| TacElimType of 'constr
| TacCase of 'constr with_bindings
| TacCaseType of 'constr
| TacFix of identifier option * int
| TacMutualFix of identifier * int * (identifier * int * 'constr) list
| TacCofix of identifier option
| TacMutualCofix of identifier * (identifier * 'constr) list
| TacCut of 'constr
| TacTrueCut of name * 'constr
| TacForward of bool * name * 'constr
| TacGeneralize of 'constr list
| TacGeneralizeDep of 'constr
| TacLetTac of name * 'constr * 'id gclause
| TacInstantiate of int * 'constr * 'id gclause
(* Derived basic tactics *)
| TacSimpleInduction of (quantified_hypothesis * (bool ref * intro_pattern_expr list ref list) list ref)
| TacNewInduction of 'constr induction_arg * 'constr with_bindings option
* (intro_pattern_expr option * (bool ref * intro_pattern_expr list ref list) list ref)
| TacSimpleDestruct of quantified_hypothesis
| TacNewDestruct of 'constr induction_arg * 'constr with_bindings option
* (intro_pattern_expr option * (bool ref * intro_pattern_expr list ref list) list ref)
| TacDoubleInduction of quantified_hypothesis * quantified_hypothesis
| TacDecomposeAnd of 'constr
| TacDecomposeOr of 'constr
| TacDecompose of 'ind list * 'constr
| TacSpecialize of int option * 'constr with_bindings
| TacLApply of 'constr
(* Automation tactics *)
| TacTrivial of string list option
| TacAuto of int option * string list option
| TacAutoTDB of int option
| TacDestructHyp of (bool * identifier located)
| TacDestructConcl
| TacSuperAuto of (int option * reference list * bool * bool)
| TacDAuto of int option * int option
(* Context management *)
| TacClear of 'id list
| TacClearBody of 'id list
| TacMove of bool * 'id * 'id
| TacRename of 'id * 'id
(* Constructors *)
| TacLeft of 'constr bindings
| TacRight of 'constr bindings
| TacSplit of bool * 'constr bindings
| TacAnyConstructor of 'tac option
| TacConstructor of int or_metaid * 'constr bindings
(* Conversion *)
| TacReduce of ('constr,'cst) red_expr_gen * 'id gclause
| TacChange of
'constr occurrences option * 'constr * 'id gclause
(* Equivalence relations *)
| TacReflexivity
| TacSymmetry of 'id gclause
| TacTransitivity of 'constr
(* Equality and inversion *)
| TacInversion of ('constr,'id) inversion_strength * quantified_hypothesis
(* For ML extensions *)
| TacExtend of loc * string * ('constr,'tac) generic_argument list
(* For syntax extensions *)
| TacAlias of loc * string *
(identifier * ('constr,'tac) generic_argument) list
* (dir_path * 'tac)
and ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr =
| TacAtom of loc * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_atomic_tactic_expr
| TacThen of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacThens of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr list
| TacFirst of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr list
| TacSolve of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr list
| TacTry of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacOrelse of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacDo of int or_var * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacRepeat of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacProgress of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacAbstract of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr * identifier option
| TacId of string
| TacFail of int or_var * string
| TacInfo of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacLetRecIn of (identifier located * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_fun_ast) list * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacLetIn of (identifier located * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr option * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_arg) list * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
| TacMatch of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr * ('pat,('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr) match_rule list
| TacMatchContext of direction_flag * ('pat,('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr) match_rule list
| TacFun of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_fun_ast
| TacArg of ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_arg
and ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_fun_ast =
identifier option list * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_expr
(* These are possible arguments of a tactic definition *)
and ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_arg =
| TacDynamic of loc * Dyn.t
| TacVoid
| MetaIdArg of loc * string
| ConstrMayEval of ('constr,'cst) may_eval
| IntroPattern of intro_pattern_expr
| Reference of 'ref
| Integer of int
| TacCall of loc *
'ref * ('constr,'pat,'cst,'ind,'ref,'id,'tac) gen_tactic_arg list
| TacFreshId of string option
| Tacexp of 'tac
type raw_tactic_expr =
(constr_expr,
pattern_expr,
reference,
reference,
reference,
identifier located or_metaid,
raw_tactic_expr) gen_tactic_expr
type raw_atomic_tactic_expr =
(constr_expr, (* constr *)
pattern_expr, (* pattern *)
reference, (* evaluable reference *)
reference, (* inductive *)
reference, (* ltac reference *)
identifier located or_metaid, (* identifier *)
raw_tactic_expr) gen_atomic_tactic_expr
type raw_tactic_arg =
(constr_expr,
pattern_expr,
reference,
reference,
reference,
identifier located or_metaid,
raw_tactic_expr) gen_tactic_arg
type raw_generic_argument =
(constr_expr,raw_tactic_expr) generic_argument
type raw_red_expr = (constr_expr, reference) red_expr_gen
(* Globalized tactics *)
type glob_tactic_expr =
(rawconstr_and_expr,
constr_pattern,
evaluable_global_reference and_short_name or_var,
inductive or_var,
ltac_constant located or_var,
identifier located,
glob_tactic_expr) gen_tactic_expr
type glob_atomic_tactic_expr =
(rawconstr_and_expr,
constr_pattern,
evaluable_global_reference and_short_name or_var,
inductive or_var,
ltac_constant located or_var,
identifier located,
glob_tactic_expr) gen_atomic_tactic_expr
type glob_tactic_arg =
(rawconstr_and_expr,
constr_pattern,
evaluable_global_reference and_short_name or_var,
inductive or_var,
ltac_constant located,
identifier located or_var,
glob_tactic_expr) gen_tactic_arg
type glob_generic_argument =
(rawconstr_and_expr,glob_tactic_expr) generic_argument
type glob_red_expr =
(rawconstr_and_expr, evaluable_global_reference or_var) red_expr_gen
type closed_raw_generic_argument =
(constr_expr,raw_tactic_expr) generic_argument
type 'a raw_abstract_argument_type =
('a,constr_expr,raw_tactic_expr) abstract_argument_type
type 'a glob_abstract_argument_type =
('a,rawconstr_and_expr,glob_tactic_expr) abstract_argument_type
type open_generic_argument =
(Term.constr,glob_tactic_expr) generic_argument
type closed_generic_argument =
(Term.constr,glob_tactic_expr) generic_argument
type 'a closed_abstract_argument_type =
('a,Term.constr,glob_tactic_expr) abstract_argument_type
type declaration_hook = Decl_kinds.strength -> global_reference -> unit
|
