ocaml/typing/parmatch.mli

60 lines
2.4 KiB
OCaml

(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* Detection of partial matches and unused match cases. *)
open Types
open Typedtree
val top_pretty : Format.formatter -> pattern -> unit
val pretty_pat : pattern -> unit
val pretty_line : pattern list -> unit
val pretty_matrix : pattern list list -> unit
val omega : pattern
val omegas : int -> pattern list
val omega_list : 'a list -> pattern list
val normalize_pat : pattern -> pattern
val all_record_args :
(label_description * pattern) list -> (label_description * pattern) list
val le_pat : pattern -> pattern -> bool
val le_pats : pattern list -> pattern list -> bool
val compat : pattern -> pattern -> bool
val compats : pattern list -> pattern list -> bool
exception Empty
val lub : pattern -> pattern -> pattern
val lubs : pattern list -> pattern list -> pattern list
val get_mins : ('a -> 'a -> bool) -> 'a list -> 'a list
(* Those to functions recombine one pattern and its arguments:
For instance:
(_,_)::p1::p2::rem -> (p1, p2)::rem
The second one will replace mutable arguments by '_'
*)
val set_args : pattern -> pattern list -> pattern list
val set_args_erase_mutable : pattern -> pattern list -> pattern list
val pat_of_constr : pattern -> constructor_description -> pattern
val complete_constrs :
pattern -> constructor_tag list -> constructor_description list
val pressure_variants: Env.t -> pattern list -> unit
val check_partial: Location.t -> (pattern * expression) list -> partial
val check_unused: Env.t -> (pattern * expression) list -> unit
(* Irrefutability tests *)
val irrefutable : pattern -> bool
val fluid : pattern -> bool