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author | Samuel Mimram <samuel.mimram@ens-lyon.org> | 2004-07-28 21:54:47 +0000 |
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committer | Samuel Mimram <samuel.mimram@ens-lyon.org> | 2004-07-28 21:54:47 +0000 |
commit | 6b649aba925b6f7462da07599fe67ebb12a3460e (patch) | |
tree | 43656bcaa51164548f3fa14e5b10de5ef1088574 /pretyping/matching.mli |
Imported Upstream version 8.0pl1upstream/8.0pl1
Diffstat (limited to 'pretyping/matching.mli')
-rw-r--r-- | pretyping/matching.mli | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/pretyping/matching.mli b/pretyping/matching.mli new file mode 100644 index 00000000..808c46a4 --- /dev/null +++ b/pretyping/matching.mli @@ -0,0 +1,52 @@ +(************************************************************************) +(* 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: matching.mli,v 1.3.2.1 2004/07/16 19:30:45 herbelin Exp $ i*) + +(*i*) +open Names +open Term +open Environ +open Pattern +open Termops +(*i*) + +(*s This modules implements pattern-matching on terms *) + +exception PatternMatchingFailure + +val special_meta : metavariable + +(* [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 -> patvar_map + +(* [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 -> patvar_map + +(* To skip to the next occurrence *) +exception NextOccurrence of int + +(* Tries to match a _closed_ subterm of [c] with [pat] *) +val sub_match : int -> constr_pattern -> constr -> patvar_map * 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 |