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(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Jerome Vouillon, 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. *)
(* *)
(***********************************************************************)
(* $Id$ *)
open Misc
open Asttypes
open Longident
open Lambda
(* Get oo primitives identifiers *)
let oo_prim name =
try
transl_path
(fst (Env.lookup_value (Ldot (Lident "Oo", name)) Env.empty))
with Not_found ->
fatal_error ("Primitive " ^ name ^ " not found.")
(* Collect labels *)
let used_methods = ref ([] : (string * Ident.t) list);;
let meth lab =
try
List.assoc lab !used_methods
with Not_found ->
let id = Ident.create lab in
used_methods := (lab, id)::!used_methods;
id
let reset_labels () =
used_methods := []
(* Insert labels *)
let string s = Lconst (Const_base (Const_string s))
let transl_label_init expr =
if !used_methods = [] then
expr
else
let init = Ident.create "new_method" in
let expr' =
Llet(StrictOpt, init, oo_prim "new_method",
List.fold_right
(fun (lab, id) expr ->
Llet(StrictOpt, id, Lapply(Lvar init, [string lab]), expr))
!used_methods
expr)
in
reset_labels ();
expr'
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