1 (******************************************************************************)
5 (* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
8 (* This module defines the internal representation of the objects (variables, *)
9 (* blocks of (co)inductive definitions and constants) and the terms of cic *)
11 (******************************************************************************)
13 (* STUFF TO MANAGE IDENTIFIERS *)
14 type id = string (* the abstract type of the (annotated) node identifiers *)
19 (* INTERNAL REPRESENTATION OF CIC OBJECTS AND TERMS *)
28 Rel of int (* DeBrujin index *)
29 | Var of UriManager.uri (* uri *)
30 | Meta of int (* numeric id *)
31 | Sort of sort (* sort *)
33 | Cast of term * term (* value, type *)
34 | Prod of name * term * term (* binder, source, target *)
35 | Lambda of name * term * term (* binder, source, target *)
36 | LetIn of name * term * term (* binder, term, target *)
37 | Appl of term list (* arguments *)
38 | Const of UriManager.uri * int (* uri, number of cookings*)
39 | Abst of UriManager.uri (* uri *)
40 | MutInd of UriManager.uri * int * int (* uri, cookingsno, typeno*)
41 | MutConstruct of UriManager.uri * int * (* uri, cookingsno, *)
42 int * int (* typeno, consno *)
43 (*CSC: serve cookingsno?*)
44 | MutCase of UriManager.uri * int * (* ind. uri, cookingsno, *)
45 int * (* ind. typeno, *)
46 term * term * (* outtype, ind. term *)
47 term list (* patterns *)
48 | Fix of int * inductiveFun list (* funno, functions *)
49 | CoFix of int * coInductiveFun list (* funno, functions *)
51 Definition of string * term * term * (* id, value, type, *)
52 (int * UriManager.uri list) list (* parameters *)
53 | Axiom of string * term *
54 (int * UriManager.uri list) list (* id, type, parameters *)
55 | Variable of string * term option * term (* name, body, type *)
56 | CurrentProof of string * (int * term) list * (* name, conjectures, *)
57 term * term (* value, type *)
58 | InductiveDefinition of inductiveType list * (* inductive types, *)
59 (int * UriManager.uri list) list * int (* parameters, n ind. pars *)
61 string * bool * term * (* typename, inductive, arity *)
62 constructor list (* constructors *)
64 string * term * bool list option ref (* id, type, really recursive *)
66 string * int * term * term (* name, ind. index, type, body *)
68 string * term * term (* name, type, body *)
71 ARel of id * annotation option ref *
72 int * string option (* DeBrujin index, binder *)
73 | AVar of id * annotation option ref *
74 UriManager.uri (* uri *)
75 | AMeta of id * annotation option ref * int (* numeric id *)
76 | ASort of id * annotation option ref * sort (* sort *)
77 | AImplicit of id * annotation option ref (* *)
78 | ACast of id * annotation option ref *
79 annterm * annterm (* value, type *)
80 | AProd of id * annotation option ref *
81 name * annterm * annterm (* binder, source, target *)
82 | ALambda of id * annotation option ref *
83 name * annterm * annterm (* binder, source, target *)
84 | ALetIn of id * annotation option ref *
85 name * annterm * annterm (* binder, term, target *)
86 | AAppl of id * annotation option ref *
87 annterm list (* arguments *)
88 | AConst of id * annotation option ref *
89 UriManager.uri * int (* uri, number of cookings*)
90 | AAbst of id * annotation option ref *
91 UriManager.uri (* uri *)
92 | AMutInd of id * annotation option ref *
93 UriManager.uri * int * int (* uri, cookingsno, typeno*)
94 | AMutConstruct of id * annotation option ref *
95 UriManager.uri * int * (* uri, cookingsno, *)
96 int * int (* typeno, consno *)
97 (*CSC: serve cookingsno?*)
98 | AMutCase of id * annotation option ref *
99 UriManager.uri * int * (* ind. uri, cookingsno *)
100 int * (* ind. typeno, *)
101 annterm * annterm * (* outtype, ind. term *)
102 annterm list (* patterns *)
103 | AFix of id * annotation option ref *
104 int * anninductiveFun list (* funno, functions *)
105 | ACoFix of id * annotation option ref *
106 int * anncoInductiveFun list (* funno, functions *)
108 ADefinition of id * annotation option ref *
110 annterm * annterm * (* value, type, *)
111 (int * UriManager.uri list) list exactness (* parameters *)
112 | AAxiom of id * annotation option ref *
113 string * annterm * (* id, type *)
114 (int * UriManager.uri list) list (* parameters *)
115 | AVariable of id * annotation option ref *
116 string * annterm option * annterm (* name, body, type *)
117 | ACurrentProof of id * annotation option ref *
118 string * (int * annterm) list * (* name, conjectures, *)
119 annterm * annterm (* value, type *)
120 | AInductiveDefinition of id *
121 annotation option ref * anninductiveType list * (* inductive types , *)
122 (int * UriManager.uri list) list * int (* parameters,n ind. pars*)
123 and anninductiveType =
124 string * bool * annterm * (* typename, inductive, arity *)
125 annconstructor list (* constructors *)
127 string * annterm * bool list option ref (* id, type, really recursive *)
128 and anninductiveFun =
129 string * int * annterm * annterm (* name, ind. index, type, body *)
130 and anncoInductiveFun =
131 string * annterm * annterm (* name, type, body *)
135 Possible of 'a (* an approximation to something *)
136 | Actual of 'a (* something *)