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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: cases.mli,v 1.22.2.2 2004/07/16 19:30:43 herbelin Exp $ i*)
(*i*)
open Util
open Names
open Term
open Evd
open Environ
open Inductiveops
open Rawterm
open Evarutil
(*i*)
type pattern_matching_error =
| BadPattern of constructor * constr
| BadConstructor of constructor * inductive
| WrongNumargConstructor of constructor * int
| WrongPredicateArity of constr * constr * constr
| NeedsInversion of constr * constr
| UnusedClause of cases_pattern list
| NonExhaustive of cases_pattern list
| CannotInferPredicate of (constr * types) array
exception PatternMatchingError of env * pattern_matching_error
(*s Used for old cases in pretyping *)
val branch_scheme :
env -> evar_defs -> bool -> inductive_family -> constr array
type ml_case_error =
| MlCaseAbsurd
| MlCaseDependent
exception NotInferable of ml_case_error
val pred_case_ml : (* raises [NotInferable] if not inferable *)
env -> evar_map -> bool -> inductive_type -> int * types -> constr
(*s Compilation of pattern-matching. *)
val compile_cases :
loc -> (type_constraint -> env -> rawconstr -> unsafe_judgment)
* evar_defs -> type_constraint -> env ->
(rawconstr option * rawconstr option ref) *
(rawconstr * (name * (loc * inductive * name list) option) ref) list *
(loc * identifier list * cases_pattern list * rawconstr) list ->
unsafe_judgment
|
