(*i $Id$ i*)

(*i*)
open Names
open Term
open Evd
open Environ
open Inductive
open Rawterm
open Evarutil
(*i*)

type pattern_matching_error =
  | BadPattern of constructor * constr
  | BadConstructor of constructor * inductive
  | WrongNumargConstructor of constructor_path * int
  | WrongPredicateArity of constr * constr * constr
  | NeedsInversion of constr * constr
  | RedundantClause of cases_pattern list
  | NonExhaustive of cases_pattern list

exception PatternMatchingError of env * pattern_matching_error

(* Used for old cases in pretyping *)

val branch_scheme : 
  env -> 'a evar_defs -> bool -> inductive_family -> constr array

val pred_case_ml_onebranch : loc -> env -> 'c evar_map -> bool ->
  inductive_type -> int * constr * constr -> constr 

(* Compilation of pattern-matching. *)

val compile_cases :
  loc -> (type_constraint -> env -> rawconstr -> unsafe_judgment)
  * 'a evar_defs -> type_constraint -> env ->
    rawconstr option * rawconstr list *
    (loc * identifier list * cases_pattern list * rawconstr) list ->
    unsafe_judgment