Imported Upstream version 8.0pl3+8.1alphaupstream/8.0pl3+8.1alpha

1 files changed, 34 insertions, 24 deletions

diff --git a/pretyping/coercion.mli b/pretyping/coercion.mli
index 658844eb..f675beff 100644
--- a/pretyping/coercion.mli
+++ b/pretyping/coercion.mli
@@ -6,7 +6,7 @@
 (*         *       GNU Lesser General Public License Version 2.1        *)
 (************************************************************************)
 
-(*i $Id: coercion.mli,v 1.20.14.2 2004/07/16 19:30:44 herbelin Exp $ i*)
+(*i $Id: coercion.mli 8688 2006-04-07 15:08:12Z msozeau $ i*)
 
 (*i*)
 open Util
@@ -19,28 +19,38 @@ open Evarutil
 open Rawterm
 (*i*)
 
-(*s Coercions. *)
+module type S = sig
+  (*s Coercions. *)
+  
+  (* [inh_app_fun env isevars j] coerces [j] to a function; i.e. it
+     inserts a coercion into [j], if needed, in such a way it gets as
+     type a product; it returns [j] if no coercion is applicable *)
+  val inh_app_fun :
+    env -> evar_defs -> unsafe_judgment -> evar_defs * unsafe_judgment
+    
+  (* [inh_coerce_to_sort env isevars j] coerces [j] to a type; i.e. it
+     inserts a coercion into [j], if needed, in such a way it gets as
+     type a sort; it fails if no coercion is applicable *)
+  val inh_coerce_to_sort : loc ->
+    env -> evar_defs -> unsafe_judgment -> evar_defs * unsafe_type_judgment
+    
+  (* [inh_conv_coerce_to loc env isevars j t] coerces [j] to an object of type 
+     [t]; i.e. it inserts a coercion into [j], if needed, in such a way [t] and
+     [j.uj_type] are convertible; it fails if no coercion is applicable *)
+  val inh_conv_coerce_to : loc -> 
+    env -> evar_defs -> unsafe_judgment -> type_constraint_type -> evar_defs * unsafe_judgment
 
-(* [inh_app_fun env isevars j] coerces [j] to a function; i.e. it
-   inserts a coercion into [j], if needed, in such a way it gets as
-   type a product; it returns [j] if no coercion is applicable *)
-val inh_app_fun :
-  env -> evar_defs -> unsafe_judgment -> unsafe_judgment
+  (* [inh_conv_coerces_to loc env isevars t t'] checks if an object of type [t]
+     is coercible to an object of type [t'] adding evar constraints if needed;
+     it fails if no coercion exists *)
+  val inh_conv_coerces_to : loc -> 
+    env -> evar_defs -> types -> type_constraint_type -> evar_defs
+   
+  (* [inh_pattern_coerce_to loc env isevars pat ind1 ind2] coerces the Cases
+     pattern [pat] typed in [ind1] into a pattern typed in [ind2];
+     raises [Not_found] if no coercion found *)
+  val inh_pattern_coerce_to :
+    loc  -> cases_pattern -> inductive -> inductive -> cases_pattern
+end
 
-(* [inh_coerce_to_sort env isevars j] coerces [j] to a type; i.e. it
-   inserts a coercion into [j], if needed, in such a way it gets as
-   type a sort; it fails if no coercion is applicable *)
-val inh_coerce_to_sort :
-  env -> evar_defs -> unsafe_judgment -> unsafe_type_judgment
-
-(* [inh_conv_coerce_to loc env isevars j t] coerces [j] to an object of type 
-   [t]; i.e. it inserts a coercion into [j], if needed, in such a way [t] and
-   [j.uj_type] are convertible; it fails if no coercion is applicable *)
-val inh_conv_coerce_to : loc -> 
-  env -> evar_defs -> unsafe_judgment -> constr -> unsafe_judgment
-
-(* [inh_pattern_coerce_to loc env isevars pat ind1 ind2] coerces the Cases
-   pattern [pat] typed in [ind1] into a pattern typed in [ind2];
-   raises [Not_found] if no coercion found *)
-val inh_pattern_coerce_to :
-  loc  -> cases_pattern -> inductive -> inductive -> cases_pattern
+module Default : S