blob: 9b4c1ae71053d5b2ce91def5237a4525e5704d72 (
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
|
(* $Id$ *)
open Pp
open Util
open Names
open Generic
open Term
open Sign
open Constant
open Inductive
open Evd
open Environ
let is_id_inst ids args =
let is_id id = function
| VAR id' -> id = id'
| _ -> false
in
List.for_all2 is_id ids args
let instantiate_constr ids c args =
if is_id_inst ids args then
c
else
replace_vars (List.combine ids (List.map make_substituend args)) c
let instantiate_type ids tty args =
{ body = instantiate_constr ids tty.body args;
typ = tty.typ }
(* Constants. *)
(* constant_type gives the type of a constant *)
let constant_type env k =
let (sp,args) = destConst k in
let cb = lookup_constant sp env in
instantiate_type
(ids_of_sign cb.const_hyps) cb.const_type (Array.to_list args)
let constant_value env k =
let (sp,args) = destConst k in
let cb = lookup_constant sp env in
if not cb.const_opaque & defined_const env k then
match cb.const_body with
Some { contents = Cooked body } ->
instantiate_constr
(ids_of_sign cb.const_hyps) body (Array.to_list args)
| Some { contents = Recipe _ } ->
anomalylabstrm "termenv__constant_value"
[< 'sTR "a transparent constant which was not cooked" >]
| None -> anomalylabstrm "termenv__constant_value"
[< 'sTR "a defined constant as no body." >]
else failwith "opaque"
(* existential_type gives the type of an existential *)
let existential_type env k =
let (sp,args) = destConst k in
let evd = Evd.map (evar_map env) sp in
instantiate_constr
(ids_of_sign evd.evar_hyps) evd.evar_concl.body (Array.to_list args)
(* existential_value gives the value of a defined existential *)
let existential_value env k =
let (sp,args) = destConst k in
if defined_const env k then
let evd = Evd.map (evar_map env) sp in
match evd.evar_body with
| EVAR_DEFINED c ->
instantiate_constr (ids_of_sign evd.evar_hyps) c (Array.to_list args)
| _ -> anomalylabstrm "termenv__existential_value"
[< 'sTR"The existential variable code just registered a" ;
'sPC ; 'sTR"grave internal error." >]
else
failwith "undefined existential"
(* Constants or existentials. *)
(* gives the value of a const *)
let const_or_ex_value env = function
| DOPN (Const sp, _) as k ->
if is_existential k then
existential_value env k
else
constant_value env k
| _ -> invalid_arg "const_or_ex_value"
(* gives the type of a const *)
let const_or_ex_type env = function
| DOPN (Const sp, _) as k ->
if is_existential k then
existential_type env k
else
(constant_type env k).body
| _ -> invalid_arg "const_or_ex_type"
let const_abst_opt_value env c =
match c with
| DOPN(Const sp,_) ->
if evaluable_const env c then Some (const_or_ex_value env c) else None
| DOPN(Abst sp,_) ->
if evaluable_abst env c then Some (abst_value env c) else None
| _ -> invalid_arg "const_abst_opt_value"
let mis_lc env mis =
instantiate_constr (ids_of_sign mis.mis_mib.mind_hyps) mis.mis_mip.mind_lc
(Array.to_list mis.mis_args)
|
