64 lines
1.8 KiB
OCaml
64 lines
1.8 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Jerome Vouillon, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* Automatique. Distributed only by permission. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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open Misc
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open Asttypes
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open Longident
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open Lambda
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(* Get oo primitives identifiers *)
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let oo_prim name =
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try
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transl_path
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(fst (Env.lookup_value (Ldot (Lident "Oo", name)) Env.empty))
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with Not_found ->
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fatal_error ("Primitive " ^ name ^ " not found.")
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(* Collect labels *)
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let used_methods = ref ([] : (string * Ident.t) list);;
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let meth lab =
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try
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List.assoc lab !used_methods
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with Not_found ->
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let id = Ident.create lab in
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used_methods := (lab, id)::!used_methods;
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id
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let reset_labels () =
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used_methods := []
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(* Insert labels *)
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let string s = Lconst (Const_base (Const_string s))
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let transl_init kind labels expr =
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if labels = [] then
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expr
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else
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let init = Ident.create kind in
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Llet(Alias, init, oo_prim kind,
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List.fold_right
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(fun (lab, id) expr ->
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Llet(Alias, id, Lapply(Lvar init, [string lab]), expr))
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labels
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expr)
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let transl_label_init expr =
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let new_method = Ident.create "new_method" in
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let expr' = transl_init "new_method" !used_methods expr in
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reset_labels ();
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expr'
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