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-(************************************************************************)
-(* * 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 *)
-(* * (see LICENSE file for the text of the license) *)
-(************************************************************************)
-
-open Names
-open Cic
-open Environ
-
-type unsafe_judgment = constr * constr
-
-let nf_betaiota c = c
-
-(* Type errors. *)
-
-type guard_error =
- (* Fixpoints *)
- | NotEnoughAbstractionInFixBody
- | RecursionNotOnInductiveType of constr
- | RecursionOnIllegalTerm of int * (env * constr) * int list * int list
- | NotEnoughArgumentsForFixCall of int
- (* CoFixpoints *)
- | 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
-
-type arity_error =
- | NonInformativeToInformative
- | StrongEliminationOnNonSmallType
- | WrongArity
-
-type type_error =
- | UnboundRel of int
- | UnboundVar of variable
- | NotAType of unsafe_judgment
- | BadAssumption of unsafe_judgment
- | ReferenceVariables of constr
- | ElimArity of pinductive * sorts_family list * constr * unsafe_judgment
- * (sorts_family * sorts_family * arity_error) option
- | CaseNotInductive of unsafe_judgment
- | WrongCaseInfo of inductive * case_info
- | NumberBranches of unsafe_judgment * int
- | IllFormedBranch of constr * int * constr * constr
- | Generalization of (Name.t * constr) * unsafe_judgment
- | ActualType of unsafe_judgment * constr
- | 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
- | IllTypedRecBody of
- int * Name.t array * unsafe_judgment array * constr array
- | UnsatisfiedConstraints of Univ.constraints
-
-exception TypeError of env * type_error
-
-let nfj (c,ct) = (c, nf_betaiota ct)
-
-let error_unbound_rel env n =
- raise (TypeError (env, UnboundRel n))
-
-let error_unbound_var env v =
- raise (TypeError (env, UnboundVar v))
-
-let error_not_type env j =
- raise (TypeError (env, NotAType j))
-
-let error_assumption env j =
- raise (TypeError (env, BadAssumption j))
-
-let error_reference_variables env id =
- raise (TypeError (env, ReferenceVariables id))
-
-let error_elim_arity env ind aritylst c pj okinds =
- raise (TypeError (env, ElimArity (ind,aritylst,c,pj,okinds)))
-
-let error_case_not_inductive env j =
- raise (TypeError (env, CaseNotInductive j))
-
-let error_number_branches env cj expn =
- raise (TypeError (env, NumberBranches (nfj cj,expn)))
-
-let error_ill_formed_branch env c i actty expty =
- raise (TypeError (env,
- IllFormedBranch (c,i,nf_betaiota actty, nf_betaiota expty)))
-
-let error_actual_type env j expty =
- raise (TypeError (env, ActualType (j,expty)))
-
-let error_cant_apply_not_functional env rator randl =
- raise (TypeError (env, CantApplyNonFunctional (rator,randl)))
-
-let error_cant_apply_bad_type env t rator randl =
- raise (TypeError (env, CantApplyBadType (t,rator,randl)))
-
-let error_ill_formed_rec_body env why lna i =
- raise (TypeError (env, IllFormedRecBody (why,lna,i)))
-
-let error_ill_typed_rec_body env i lna vdefj vargs =
- raise (TypeError (env, IllTypedRecBody (i,lna,vdefj,vargs)))
-
-let error_unsatisfied_constraints env c =
- raise (TypeError (env, UnsatisfiedConstraints c))