From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@debian.org>
Date: Sat, 29 Dec 2018 14:31:27 -0500
Subject: Imported Upstream version 8.8.2

---
 kernel/type_errors.ml | 75 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 41 insertions(+), 34 deletions(-)

(limited to 'kernel/type_errors.ml')

diff --git a/kernel/type_errors.ml b/kernel/type_errors.ml
index 5071f0ad..1c323e3e 100644
--- a/kernel/type_errors.ml
+++ b/kernel/type_errors.ml
@@ -1,63 +1,69 @@
 (************************************************************************)
-(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
-(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016     *)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
 (*   \VV/  **************************************************************)
-(*    //   *      This file is distributed under the terms of the       *)
-(*         *       GNU Lesser General Public License Version 2.1        *)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
 (************************************************************************)
 
 open Names
-open Term
+open Constr
 open Environ
 open Reduction
 
 (* Type errors. *)
 
-type guard_error =
+type 'constr pguard_error =
   (* Fixpoints *)
   | NotEnoughAbstractionInFixBody
-  | RecursionNotOnInductiveType of constr
-  | RecursionOnIllegalTerm of int * (env * constr) * int list * int list
+  | RecursionNotOnInductiveType of 'constr
+  | RecursionOnIllegalTerm of int * (env * 'constr) * int list * int list
   | NotEnoughArgumentsForFixCall of int
   (* CoFixpoints *)
-  | CodomainNotInductiveType of constr
+  | CodomainNotInductiveType of 'constr
   | NestedRecursiveOccurrences
-  | UnguardedRecursiveCall of constr
-  | RecCallInTypeOfAbstraction of constr
-  | RecCallInNonRecArgOfConstructor of constr
-  | RecCallInTypeOfDef of constr
-  | RecCallInCaseFun of constr
-  | RecCallInCaseArg of constr
-  | RecCallInCasePred of constr
-  | NotGuardedForm of constr
-  | ReturnPredicateNotCoInductive of constr
+  | UnguardedRecursiveCall of 'constr
+  | RecCallInTypeOfAbstraction of 'constr
+  | RecCallInNonRecArgOfConstructor of 'constr
+  | RecCallInTypeOfDef of 'constr
+  | RecCallInCaseFun of 'constr
+  | RecCallInCaseArg of 'constr
+  | RecCallInCasePred of 'constr
+  | NotGuardedForm of 'constr
+  | ReturnPredicateNotCoInductive of 'constr
+
+type guard_error = constr pguard_error
 
 type arity_error =
   | NonInformativeToInformative
   | StrongEliminationOnNonSmallType
   | WrongArity
 
-type type_error =
+type ('constr, 'types) ptype_error =
   | UnboundRel of int
   | UnboundVar of variable
-  | NotAType of unsafe_judgment
-  | BadAssumption of unsafe_judgment
-  | ReferenceVariables of identifier * constr
-  | ElimArity of pinductive * sorts_family list * constr * unsafe_judgment
-      * (sorts_family * sorts_family * arity_error) option
-  | CaseNotInductive of unsafe_judgment
+  | NotAType of ('constr, 'types) punsafe_judgment
+  | BadAssumption of ('constr, 'types) punsafe_judgment
+  | ReferenceVariables of Id.t * 'constr
+  | ElimArity of pinductive * Sorts.family list * 'constr * ('constr, 'types) punsafe_judgment
+      * (Sorts.family * Sorts.family * arity_error) option
+  | CaseNotInductive of ('constr, 'types) punsafe_judgment
   | WrongCaseInfo of pinductive * case_info
-  | NumberBranches of unsafe_judgment * int
-  | IllFormedBranch of constr * pconstructor * constr * constr
-  | Generalization of (Name.t * types) * unsafe_judgment
-  | ActualType of unsafe_judgment * types
+  | NumberBranches of ('constr, 'types) punsafe_judgment * int
+  | IllFormedBranch of 'constr * pconstructor * 'constr * 'constr
+  | Generalization of (Name.t * 'types) * ('constr, 'types) punsafe_judgment
+  | ActualType of ('constr, 'types) punsafe_judgment * 'types
   | CantApplyBadType of
-      (int * constr * constr) * unsafe_judgment * unsafe_judgment array
-  | CantApplyNonFunctional of unsafe_judgment * unsafe_judgment array
-  | IllFormedRecBody of guard_error * Name.t array * int * env * unsafe_judgment array
+      (int * 'constr * 'constr) * ('constr, 'types) punsafe_judgment * ('constr, 'types) punsafe_judgment array
+  | CantApplyNonFunctional of ('constr, 'types) punsafe_judgment * ('constr, 'types) punsafe_judgment array
+  | IllFormedRecBody of 'constr pguard_error * Name.t array * int * env * ('constr, 'types) punsafe_judgment array
   | IllTypedRecBody of
-      int * Name.t array * unsafe_judgment array * types array
-  | UnsatisfiedConstraints of Univ.constraints
+      int * Name.t array * ('constr, 'types) punsafe_judgment array * 'types array
+  | UnsatisfiedConstraints of Univ.Constraint.t
+
+type type_error = (constr, types) ptype_error
 
 exception TypeError of env * type_error
 
@@ -111,6 +117,7 @@ let error_ill_typed_rec_body env i lna vdefj vargs =
   raise (TypeError (env, IllTypedRecBody (i,lna,vdefj,vargs)))
 
 let error_elim_explain kp ki =
+  let open Sorts in
   match kp,ki with
   | (InType | InSet), InProp -> NonInformativeToInformative
   | InType, InSet -> StrongEliminationOnNonSmallType (* if Set impredicative *)
-- 
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