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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 *)
(************************************************************************)
(** Extraction to Ocaml : use of basic Ocaml types *)
Extract Inductive bool => bool [ true false ].
Extract Inductive option => option [ Some None ].
Extract Inductive prod => "( * )" [ "" ].
(* The "" above is a hack, but produce nicer code than with "(,)" *)
Extract Inductive unit => unit [ "()" ].
Extract Inductive list => list [ "[]" "( :: )" ].
(** We could also map sumbool to bool, sumor to option, but
this isn't always a gain in clarity. We leave it to the user...
Extract Inductive sumbool => bool [ true false ].
Extract Inductive sumor => option [ Some None ].
*)
(** Restore lazyness of andb, orb.
NB: without these Extract Constant, andb/orb would be inlined
by extraction in order to have lazyness, producing inelegant
(if ... then ... else false) and (if ... then true else ...).
*)
Extract Inlined Constant andb => "(&&)".
Extract Inlined Constant orb => "(||)".
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