version 0.7.1

[helm.git] / helm / ocaml / tactics / proofEngineHelpers.mli

diff --git a/helm/ocaml/tactics/proofEngineHelpers.mli b/helm/ocaml/tactics/proofEngineHelpers.mli
index 0e2244f430d789c66580e03a03b3c27444204708..b77fd88ac7e4a36b31cc276124bc049c6f5ddacf 100644 (file)
--- a/helm/ocaml/tactics/proofEngineHelpers.mli
+++ b/helm/ocaml/tactics/proofEngineHelpers.mli
@@ -23,21 +23,11 @@
  * http://cs.unibo.it/helm/.
  *)
 
-(* mk_fresh_name context name typ                      *)
-(* returns an identifier which is fresh in the context *)
-(* and that resembles [name] as much as possible.      *)
-(* [typ] will be the type of the variable              *)
-val mk_fresh_name : ProofEngineTypes.mk_fresh_name_type
-
-(* identity_relocation_list_for_metavariable i canonical_context         *)
-(* returns the identity relocation list, which is the list               *)
-(* [Rel 1 ; ... ; Rel n] where n = List.length [canonical_context]       *)
-val identity_relocation_list_for_metavariable :
-  'a option list -> Cic.term option list
+exception Bad_pattern of string
 
 (* Returns the first meta whose number is above the *)
 (* number of the higher meta.                       *)
-val new_meta : proof:ProofEngineTypes.proof -> int
+val new_meta_of_proof : proof:ProofEngineTypes.proof -> int
 
 val subst_meta_in_proof :
   ProofEngineTypes.proof ->
@@ -47,3 +37,54 @@ val subst_meta_and_metasenv_in_proof :
   ProofEngineTypes.proof ->
   int -> (Cic.term -> Cic.term) -> Cic.metasenv ->
   ProofEngineTypes.proof * Cic.metasenv
+
+(* returns the list of goals that are in newmetasenv and were not in
+   oldmetasenv *)
+val compare_metasenvs :
+  oldmetasenv:Cic.metasenv -> newmetasenv:Cic.metasenv -> int list
+
+
+(** { Patterns }
+ * A pattern is a Cic term in which Cic.Implicit terms annotated with `Hole
+ * appears *)
+
+(** create a pattern from a term and a list of subterms.
+* the pattern is granted to have a ? for every subterm that has no selected
+* subterms
+* @param equality equality function used while walking the term. Defaults to
+* physical equality (==) *)
+val pattern_of:
+ ?equality:(Cic.term -> Cic.term -> bool) -> term:Cic.term -> Cic.term list ->
+   Cic.term
+
+
+(** select metasenv conjecture pattern
+* select all subterms of [conjecture] matching [pattern].
+* It returns the set of matched terms (that can be compared using physical
+* equality to the subterms of [conjecture]) together with their contexts.
+* The representation of the set mimics the conjecture type (but for the id):
+* a list of (possibly removed) hypothesis (without their names) together with
+* the list of its matched subterms (and their contexts) + the list of matched
+* subterms of the conclusion with their context. Note: in the result the list
+* of hypotheses * has an entry for each entry in the context and in the same
+* order. Of course the list of terms (with their context) associated to one
+* hypothesis may be empty. *)
+val select:
+ metasenv:Cic.metasenv ->
+ ugraph:CicUniv.universe_graph ->
+ conjecture:Cic.conjecture ->
+ pattern:ProofEngineTypes.pattern ->
+  Cic.substitution * Cic.metasenv * CicUniv.universe_graph *
+  [ `Decl of (Cic.context * Cic.term) list
+  | `Def of (Cic.context * Cic.term) list * (Cic.context * Cic.term) list option
+  ] option list *
+  (Cic.context * Cic.term) list
+
+(* saturate_term newmeta metasenv context ty                                  *)
+(* Given a type [ty] (a backbone), it returns its head and a new metasenv in  *)
+(* which there is new a META for each hypothesis, a list of arguments for the *)
+(* new applications and the index of the last new META introduced. The nth    *)
+(* argument in the list of arguments is just the nth new META.                *)
+val saturate_term:
+ int -> Cic.metasenv -> Cic.context -> Cic.term ->
+  Cic.term * Cic.metasenv * Cic.term list * int