65 lines
2.4 KiB
OCaml
65 lines
2.4 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Xavier Leroy, 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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(* A variant of the "lambda" code with direct / indirect calls explicit
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and closures explicit too *)
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open Asttypes
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open Lambda
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type function_label = string
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type ulambda =
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Uvar of Ident.t
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| Uconst of structured_constant
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| Udirect_apply of function_label * ulambda list
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| Ugeneric_apply of ulambda * ulambda list
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| Uclosure of (function_label * int * Ident.t list * ulambda) list
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* ulambda list
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| Uoffset of ulambda * int
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| Ulet of Ident.t * ulambda * ulambda
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| Uletrec of (Ident.t * ulambda) list * ulambda
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| Uprim of primitive * ulambda list
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| Uswitch of ulambda * ulambda_switch
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| Ustaticfail
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| Ucatch of ulambda * ulambda
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| Utrywith of ulambda * Ident.t * ulambda
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| Uifthenelse of ulambda * ulambda * ulambda
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| Usequence of ulambda * ulambda
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| Uwhile of ulambda * ulambda
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| Ufor of Ident.t * ulambda * ulambda * direction_flag * ulambda
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| Uassign of Ident.t * ulambda
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| Usend of ulambda * ulambda * ulambda list
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and ulambda_switch =
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{ us_index_consts: int array;
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us_cases_consts: ulambda array;
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us_index_blocks: int array;
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us_cases_blocks: ulambda array;
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us_checked: bool }
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(* Description of known functions *)
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type function_description =
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{ fun_label: function_label; (* Label of direct entry point *)
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fun_arity: int; (* Number of arguments *)
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mutable fun_closed: bool; (* True if environment not used *)
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mutable fun_inline: (Ident.t list * ulambda) option }
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(* Approximation of values *)
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type value_approximation =
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Value_closure of function_description * value_approximation
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| Value_tuple of value_approximation array
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| Value_unknown
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