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|
(***********************************************************************)
(* *)
(* 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. *)
(* *)
(***********************************************************************)
(* A variant of the "lambda" code with direct / indirect calls explicit
and closures explicit too *)
open Asttypes
open Lambda
type function_label = string
type ulambda =
Uvar of Ident.t
| Uconst of structured_constant * string option
| Udirect_apply of function_label * ulambda list * Debuginfo.t
| Ugeneric_apply of ulambda * ulambda list * Debuginfo.t
| Uclosure of ufunction list * ulambda list
| Uoffset of ulambda * int
| Ulet of Ident.t * ulambda * ulambda
| Uletrec of (Ident.t * ulambda) list * ulambda
| Uprim of primitive * ulambda list * Debuginfo.t
| Uswitch of ulambda * ulambda_switch
| Ustaticfail of int * ulambda list
| Ucatch of int * Ident.t list * ulambda * ulambda
| Utrywith of ulambda * Ident.t * ulambda
| Uifthenelse of ulambda * ulambda * ulambda
| Usequence of ulambda * ulambda
| Uwhile of ulambda * ulambda
| Ufor of Ident.t * ulambda * ulambda * direction_flag * ulambda
| Uassign of Ident.t * ulambda
| Usend of meth_kind * ulambda * ulambda * ulambda list * Debuginfo.t
and ufunction = {
label : function_label;
arity : int;
params : Ident.t list;
body : ulambda;
dbg : Debuginfo.t;
}
and ulambda_switch =
{ us_index_consts: int array;
us_actions_consts: ulambda array;
us_index_blocks: int array;
us_actions_blocks: ulambda array}
(* Description of known functions *)
type function_description =
{ fun_label: function_label; (* Label of direct entry point *)
fun_arity: int; (* Number of arguments *)
mutable fun_closed: bool; (* True if environment not used *)
mutable fun_inline: (Ident.t list * ulambda) option }
(* Approximation of values *)
type value_approximation =
Value_closure of function_description * value_approximation
| Value_tuple of value_approximation array
| Value_unknown
| Value_integer of int
| Value_constptr of int
|
