summaryrefslogtreecommitdiff
path: root/pretyping/rawterm.mli
blob: 22317b5f845050760ee764a1d3fcf0b8bc028926 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
(************************************************************************)
(*  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: rawterm.mli 8624 2006-03-13 17:38:17Z msozeau $ i*)

(*i*)
open Util
open Names
open Sign
open Term
open Libnames
open Nametab
(*i*)

(* Untyped intermediate terms, after ASTs and before constr. *)

(* locs here refers to the ident's location, not whole pat *)
(* the last argument of PatCstr is a possible alias ident for the pattern *)
type cases_pattern =
  | PatVar of loc * name
  | PatCstr of loc * constructor * cases_pattern list * name

val pattern_loc : cases_pattern -> loc

type patvar = identifier

type rawsort = RProp of Term.contents | RType of Univ.universe option

type binder_kind = BProd | BLambda | BLetIn

type quantified_hypothesis = AnonHyp of int | NamedHyp of identifier

type 'a explicit_bindings = (loc * quantified_hypothesis * 'a) list

type 'a bindings = 
  | ImplicitBindings of 'a list
  | ExplicitBindings of 'a explicit_bindings
  | NoBindings

type 'a with_bindings = 'a * 'a bindings

type rawconstr = 
  | RRef of (loc * global_reference)
  | RVar of (loc * identifier)
  | REvar of loc * existential_key * rawconstr list option
  | RPatVar of loc * (bool * patvar) (* Used for patterns only *)
  | RApp of loc * rawconstr * rawconstr list
  | RLambda of loc * name * rawconstr * rawconstr
  | RProd of loc * name * rawconstr * rawconstr
  | RLetIn of loc * name * rawconstr * rawconstr
  | RCases of loc * rawconstr option *
      (rawconstr * (name * (loc * inductive * name list) option)) list * 
      (loc * identifier list * cases_pattern list * rawconstr) list
  | RLetTuple of loc * name list * (name * rawconstr option) * 
      rawconstr * rawconstr
  | RIf of loc * rawconstr * (name * rawconstr option) * rawconstr * rawconstr
  | RRec of loc * fix_kind * identifier array * rawdecl list array *
      rawconstr array * rawconstr array
  | RSort of loc * rawsort
  | RHole of (loc * Evd.hole_kind)
  | RCast of loc * rawconstr * cast_kind * rawconstr
  | RDynamic of loc * Dyn.t

and rawdecl = name * rawconstr option * rawconstr

and fix_recursion_order = RStructRec | RWfRec of rawconstr

and fix_kind = RFix of ((int * fix_recursion_order) array * int) | RCoFix of int

val cases_predicate_names : 
  (rawconstr * (name * (loc * inductive * name list) option)) list -> name list

(*i - if PRec (_, names, arities, bodies) is in env then arities are
   typed in env too and bodies are typed in env enriched by the
   arities incrementally lifted 

  [On pourrait plutot mettre les arités aves le type qu'elles auront
   dans le contexte servant à typer les body ???]

   - boolean in POldCase means it is recursive
   - option in PHole tell if the "?" was apparent or has been implicitely added
i*)

val map_rawconstr : (rawconstr -> rawconstr) -> rawconstr -> rawconstr

(*i
val map_rawconstr_with_binders_loc : loc -> 
  (identifier -> 'a -> identifier * 'a) ->
  ('a -> rawconstr -> rawconstr) -> 'a -> rawconstr -> rawconstr
i*)

val occur_rawconstr : identifier -> rawconstr -> bool

val loc_of_rawconstr : rawconstr -> loc

(**********************************************************************)
(* Conversion from rawconstr to cases pattern, if possible            *)

(* Take the current alias as parameter, raise Not_found if *)
(* translation is impossible *)

val cases_pattern_of_rawconstr : name -> rawconstr -> cases_pattern

val rawconstr_of_closed_cases_pattern : cases_pattern -> name * rawconstr

(**********************************************************************)
(* Reduction expressions                                              *)

type 'a raw_red_flag = {
  rBeta : bool;
  rIota : bool;
  rZeta : bool;
  rDelta : bool; (* true = delta all but rConst; false = delta only on rConst*)
  rConst : 'a list
}

val all_flags : 'a raw_red_flag

type 'a occurrences = int list * 'a

type ('a,'b) red_expr_gen =
  | Red of bool
  | Hnf
  | Simpl of 'a occurrences option
  | Cbv of 'b raw_red_flag
  | Lazy of 'b raw_red_flag
  | Unfold of 'b occurrences list
  | Fold of 'a list
  | Pattern of 'a occurrences list
  | ExtraRedExpr of string
  | CbvVm

type ('a,'b) may_eval =
  | ConstrTerm of 'a
  | ConstrEval of ('a, 'b) red_expr_gen * 'a
  | ConstrContext of (loc * identifier) * 'a
  | ConstrTypeOf of 'a