blob: 5a789b442ea7425e43fcb5ae71d9c6a9b4d5da8d (
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
|
(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(*i $Id$ i*)
(*i*)
open Names
open Term
open Environ
open Pattern
(*i*)
(*s This modules implements pattern-matching on terms *)
exception PatternMatchingFailure
(* [matches pat c] matches [c] against [pat] and returns the resulting
assignment of metavariables; it raises [PatternMatchingFailure] if
not matchable; bindings are given in increasing order based on the
numbers given in the pattern *)
val matches :
constr_pattern -> constr -> (int * constr) list
(* [is_matching pat c] just tells if [c] matches against [pat] *)
val is_matching :
constr_pattern -> constr -> bool
(* [matches_conv env sigma] matches up to conversion in environment
[(env,sigma)] when constants in pattern are concerned; it raises
[PatternMatchingFailure] if not matchable; bindings are given in
increasing order based on the numbers given in the pattern *)
val matches_conv :
env -> Evd.evar_map -> constr_pattern -> constr -> (int * constr) list
(* To skip to the next occurrence *)
exception NextOccurrence of int
(* Tries to match a subterm of [c] with [pat] *)
val sub_match :
int -> constr_pattern -> constr -> ((int * constr) list * constr)
(* [is_matching_conv env sigma pat c] tells if [c] matches against [pat]
up to conversion for constants in patterns *)
val is_matching_conv :
env -> Evd.evar_map -> constr_pattern -> constr -> bool
|
