/
flat_Field.ml
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/
flat_Field.ml
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(*
Copyright © 2011 MLstate
This file is part of OPA.
OPA is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.
OPA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
more details.
You should have received a copy of the GNU Affero General Public License
along with OPA. If not, see <http://www.gnu.org/licenses/>.
*)
(* CF mli *)
(* depends *)
(* refactoring in progress *)
(* alias *)
module FCons = Flat_Common.FCons
(* -- *)
type label = string
let table : (string, Flat_Common.expr) Hashtbl.t = Hashtbl.create 1024
let reset () = Hashtbl.clear table
let label ( label : label ) =
try
Flat_Common.Var (Hashtbl.find table label)
with
| Not_found ->
let ident = Ident.nextf "label_%s" label in
let param, var = FCons.param_var ident in
let register = Ocaml.Cons.app Flat_Common.ServerLib.Field.register (Ocaml.Cons.string label) in
let let_definition = Ocaml.make_Let param register in
Hashtbl.add table label var ;
Flat_Common.NewVar (let_definition, var)