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|
(*i $Id$ i*)
(*i*)
open Names
open Univ
open Term
open Declarations
open Environ
(*i*)
(*s The different kinds of errors that may result of a malformed inductive
definition. *)
type inductive_error =
(* These are errors related to inductive constructions in this module *)
| NonPos of env * constr * constr
| NotEnoughArgs of env * constr * constr
| NotConstructor of env * constr * constr
| NonPar of env * constr * int * constr * constr
| SameNamesTypes of identifier
| SameNamesConstructors of identifier * identifier
| NotAnArity of identifier
| BadEntry
(* These are errors related to recursors building in Indrec *)
| NotAllowedCaseAnalysis of bool * sorts * inductive
| BadInduction of bool * identifier * sorts
| NotMutualInScheme
(* [mind_extract_params] extracts the parameters of an inductive
type declaration. *)
val mind_extract_params : int -> constr -> Sign.rel_context * constr
exception InductiveError of inductive_error
(*s The following function does checks on inductive declarations. *)
(* [mind_check_wellformed env mie] checks that the types declared for
all the inductive types are arities. It checks also that
constructor and inductive names altogether are distinct. It raises
an exception [InductiveError _] if [mie] is not well-formed *)
val mind_check_wellformed : env -> mutual_inductive_entry -> unit
(* [cci_inductive] checks positivity and builds an inductive body *)
val cci_inductive :
env -> env -> path_kind -> bool ->
(int * identifier * types * identifier list * bool * bool * types array)
list ->
constraints ->
mutual_inductive_body
|
