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|
(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* 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. *)
(* *)
(***********************************************************************)
(* $Id: printlambda.ml 11113 2011-07-07 14:32:00Z maranget $ *)
open Format
open Asttypes
open Primitive
open Types
open Lambda
let rec struct_const ppf = function
| Const_base(Const_int n) -> fprintf ppf "%i" n
| Const_base(Const_char c) -> fprintf ppf "%C" c
| Const_base(Const_string s) -> fprintf ppf "%S" s
| Const_immstring s -> fprintf ppf "#%S" s
| Const_base(Const_float f) -> fprintf ppf "%s" f
| Const_base(Const_int32 n) -> fprintf ppf "%lil" n
| Const_base(Const_int64 n) -> fprintf ppf "%LiL" n
| Const_base(Const_nativeint n) -> fprintf ppf "%nin" n
| Const_pointer n -> fprintf ppf "%ia" n
| Const_block(tag, []) ->
fprintf ppf "[%i]" tag
| Const_block(tag, sc1::scl) ->
let sconsts ppf scl =
List.iter (fun sc -> fprintf ppf "@ %a" struct_const sc) scl in
fprintf ppf "@[<1>[%i:@ @[%a%a@]]@]" tag struct_const sc1 sconsts scl
| Const_float_array [] ->
fprintf ppf "[| |]"
| Const_float_array (f1 :: fl) ->
let floats ppf fl =
List.iter (fun f -> fprintf ppf "@ %s" f) fl in
fprintf ppf "@[<1>[|@[%s%a@]|]@]" f1 floats fl
let boxed_integer_name = function
| Pnativeint -> "nativeint"
| Pint32 -> "int32"
| Pint64 -> "int64"
let print_boxed_integer name ppf bi =
fprintf ppf "%s_%s" (boxed_integer_name bi) name
let print_boxed_integer_conversion ppf bi1 bi2 =
fprintf ppf "%s_of_%s" (boxed_integer_name bi2) (boxed_integer_name bi1)
let boxed_integer_mark name = function
| Pnativeint -> Printf.sprintf "Nativeint.%s" name
| Pint32 -> Printf.sprintf "Int32.%s" name
| Pint64 -> Printf.sprintf "Int64.%s" name
let print_boxed_integer name ppf bi =
fprintf ppf "%s" (boxed_integer_mark name bi);;
let print_bigarray name unsafe kind ppf layout =
fprintf ppf "Bigarray.%s[%s,%s]"
(if unsafe then "unsafe_"^ name else name)
(match kind with
| Pbigarray_unknown -> "generic"
| Pbigarray_float32 -> "float32"
| Pbigarray_float64 -> "float64"
| Pbigarray_sint8 -> "sint8"
| Pbigarray_uint8 -> "uint8"
| Pbigarray_sint16 -> "sint16"
| Pbigarray_uint16 -> "uint16"
| Pbigarray_int32 -> "int32"
| Pbigarray_int64 -> "int64"
| Pbigarray_caml_int -> "camlint"
| Pbigarray_native_int -> "nativeint"
| Pbigarray_complex32 -> "complex32"
| Pbigarray_complex64 -> "complex64")
(match layout with
| Pbigarray_unknown_layout -> "unknown"
| Pbigarray_c_layout -> "C"
| Pbigarray_fortran_layout -> "Fortran")
let record_rep ppf r =
match r with
| Record_regular -> fprintf ppf "regular"
| Record_float -> fprintf ppf "float"
;;
let primitive ppf = function
| Pidentity -> fprintf ppf "id"
| Pignore -> fprintf ppf "ignore"
| Pgetglobal id -> fprintf ppf "global %a" Ident.print id
| Psetglobal id -> fprintf ppf "setglobal %a" Ident.print id
| Pmakeblock(tag, Immutable) -> fprintf ppf "makeblock %i" tag
| Pmakeblock(tag, Mutable) -> fprintf ppf "makemutable %i" tag
| Pfield n -> fprintf ppf "field %i" n
| Psetfield(n, ptr) ->
let instr = if ptr then "setfield_ptr " else "setfield_imm " in
fprintf ppf "%s%i" instr n
| Pfloatfield n -> fprintf ppf "floatfield %i" n
| Psetfloatfield n -> fprintf ppf "setfloatfield %i" n
| Pduprecord (rep, size) -> fprintf ppf "duprecord %a %i" record_rep rep size
| Plazyforce -> fprintf ppf "force"
| Pccall p -> fprintf ppf "%s" p.prim_name
| Praise -> fprintf ppf "raise"
| Psequand -> fprintf ppf "&&"
| Psequor -> fprintf ppf "||"
| Pnot -> fprintf ppf "not"
| Pnegint -> fprintf ppf "~"
| Paddint -> fprintf ppf "+"
| Psubint -> fprintf ppf "-"
| Pmulint -> fprintf ppf "*"
| Pdivint -> fprintf ppf "/"
| Pmodint -> fprintf ppf "mod"
| Pandint -> fprintf ppf "and"
| Porint -> fprintf ppf "or"
| Pxorint -> fprintf ppf "xor"
| Plslint -> fprintf ppf "lsl"
| Plsrint -> fprintf ppf "lsr"
| Pasrint -> fprintf ppf "asr"
| Pintcomp(Ceq) -> fprintf ppf "=="
| Pintcomp(Cneq) -> fprintf ppf "!="
| Pintcomp(Clt) -> fprintf ppf "<"
| Pintcomp(Cle) -> fprintf ppf "<="
| Pintcomp(Cgt) -> fprintf ppf ">"
| Pintcomp(Cge) -> fprintf ppf ">="
| Poffsetint n -> fprintf ppf "%i+" n
| Poffsetref n -> fprintf ppf "+:=%i"n
| Pintoffloat -> fprintf ppf "int_of_float"
| Pfloatofint -> fprintf ppf "float_of_int"
| Pnegfloat -> fprintf ppf "~."
| Pabsfloat -> fprintf ppf "abs."
| Paddfloat -> fprintf ppf "+."
| Psubfloat -> fprintf ppf "-."
| Pmulfloat -> fprintf ppf "*."
| Pdivfloat -> fprintf ppf "/."
| Pfloatcomp(Ceq) -> fprintf ppf "==."
| Pfloatcomp(Cneq) -> fprintf ppf "!=."
| Pfloatcomp(Clt) -> fprintf ppf "<."
| Pfloatcomp(Cle) -> fprintf ppf "<=."
| Pfloatcomp(Cgt) -> fprintf ppf ">."
| Pfloatcomp(Cge) -> fprintf ppf ">=."
| Pstringlength -> fprintf ppf "string.length"
| Pstringrefu -> fprintf ppf "string.unsafe_get"
| Pstringsetu -> fprintf ppf "string.unsafe_set"
| Pstringrefs -> fprintf ppf "string.get"
| Pstringsets -> fprintf ppf "string.set"
| Parraylength _ -> fprintf ppf "array.length"
| Pmakearray _ -> fprintf ppf "makearray "
| Parrayrefu _ -> fprintf ppf "array.unsafe_get"
| Parraysetu _ -> fprintf ppf "array.unsafe_set"
| Parrayrefs _ -> fprintf ppf "array.get"
| Parraysets _ -> fprintf ppf "array.set"
| Pisint -> fprintf ppf "isint"
| Pisout -> fprintf ppf "isout"
| Pbittest -> fprintf ppf "testbit"
| Pbintofint bi -> print_boxed_integer "of_int" ppf bi
| Pintofbint bi -> print_boxed_integer "to_int" ppf bi
| Pcvtbint (bi1, bi2) -> print_boxed_integer_conversion ppf bi1 bi2
| Pnegbint bi -> print_boxed_integer "neg" ppf bi
| Paddbint bi -> print_boxed_integer "add" ppf bi
| Psubbint bi -> print_boxed_integer "sub" ppf bi
| Pmulbint bi -> print_boxed_integer "mul" ppf bi
| Pdivbint bi -> print_boxed_integer "div" ppf bi
| Pmodbint bi -> print_boxed_integer "mod" ppf bi
| Pandbint bi -> print_boxed_integer "and" ppf bi
| Porbint bi -> print_boxed_integer "or" ppf bi
| Pxorbint bi -> print_boxed_integer "xor" ppf bi
| Plslbint bi -> print_boxed_integer "lsl" ppf bi
| Plsrbint bi -> print_boxed_integer "lsr" ppf bi
| Pasrbint bi -> print_boxed_integer "asr" ppf bi
| Pbintcomp(bi, Ceq) -> print_boxed_integer "==" ppf bi
| Pbintcomp(bi, Cneq) -> print_boxed_integer "!=" ppf bi
| Pbintcomp(bi, Clt) -> print_boxed_integer "<" ppf bi
| Pbintcomp(bi, Cgt) -> print_boxed_integer ">" ppf bi
| Pbintcomp(bi, Cle) -> print_boxed_integer "<=" ppf bi
| Pbintcomp(bi, Cge) -> print_boxed_integer ">=" ppf bi
| Pbigarrayref(unsafe, n, kind, layout) ->
print_bigarray "get" unsafe kind ppf layout
| Pbigarrayset(unsafe, n, kind, layout) ->
print_bigarray "set" unsafe kind ppf layout
let rec lam ppf = function
| Lvar id ->
Ident.print ppf id
| Lconst cst ->
struct_const ppf cst
| Lapply(lfun, largs, _) ->
let lams ppf largs =
List.iter (fun l -> fprintf ppf "@ %a" lam l) largs in
fprintf ppf "@[<2>(apply@ %a%a)@]" lam lfun lams largs
| Lfunction(kind, params, body) ->
let pr_params ppf params =
match kind with
| Curried ->
List.iter (fun param -> fprintf ppf "@ %a" Ident.print param) params
| Tupled ->
fprintf ppf " (";
let first = ref true in
List.iter
(fun param ->
if !first then first := false else fprintf ppf ",@ ";
Ident.print ppf param)
params;
fprintf ppf ")" in
fprintf ppf "@[<2>(function%a@ %a)@]" pr_params params lam body
| Llet(str, id, arg, body) ->
let rec letbody = function
| Llet(str, id, arg, body) ->
fprintf ppf "@ @[<2>%a@ %a@]" Ident.print id lam arg;
letbody body
| expr -> expr in
fprintf ppf "@[<2>(let@ @[<hv 1>(@[<2>%a@ %a@]" Ident.print id lam arg;
let expr = letbody body in
fprintf ppf ")@]@ %a)@]" lam expr
| Lletrec(id_arg_list, body) ->
let bindings ppf id_arg_list =
let spc = ref false in
List.iter
(fun (id, l) ->
if !spc then fprintf ppf "@ " else spc := true;
fprintf ppf "@[<2>%a@ %a@]" Ident.print id lam l)
id_arg_list in
fprintf ppf
"@[<2>(letrec@ (@[<hv 1>%a@])@ %a)@]" bindings id_arg_list lam body
| Lprim(prim, largs) ->
let lams ppf largs =
List.iter (fun l -> fprintf ppf "@ %a" lam l) largs in
fprintf ppf "@[<2>(%a%a)@]" primitive prim lams largs
| Lswitch(larg, sw) ->
let switch ppf sw =
let spc = ref false in
List.iter
(fun (n, l) ->
if !spc then fprintf ppf "@ " else spc := true;
fprintf ppf "@[<hv 1>case int %i:@ %a@]" n lam l)
sw.sw_consts;
List.iter
(fun (n, l) ->
if !spc then fprintf ppf "@ " else spc := true;
fprintf ppf "@[<hv 1>case tag %i:@ %a@]" n lam l)
sw.sw_blocks ;
begin match sw.sw_failaction with
| None -> ()
| Some l ->
if !spc then fprintf ppf "@ " else spc := true;
fprintf ppf "@[<hv 1>default:@ %a@]" lam l
end in
fprintf ppf
"@[<1>(%s %a@ @[<v 0>%a@])@]"
(match sw.sw_failaction with None -> "switch*" | _ -> "switch")
lam larg switch sw
| Lstaticraise (i, ls) ->
let lams ppf largs =
List.iter (fun l -> fprintf ppf "@ %a" lam l) largs in
fprintf ppf "@[<2>(exit@ %d%a)@]" i lams ls;
| Lstaticcatch(lbody, (i, vars), lhandler) ->
fprintf ppf "@[<2>(catch@ %a@;<1 -1>with (%d%a)@ %a)@]"
lam lbody i
(fun ppf vars -> match vars with
| [] -> ()
| _ ->
List.iter
(fun x -> fprintf ppf " %a" Ident.print x)
vars)
vars
lam lhandler
| Ltrywith(lbody, param, lhandler) ->
fprintf ppf "@[<2>(try@ %a@;<1 -1>with %a@ %a)@]"
lam lbody Ident.print param lam lhandler
| Lifthenelse(lcond, lif, lelse) ->
fprintf ppf "@[<2>(if@ %a@ %a@ %a)@]" lam lcond lam lif lam lelse
| Lsequence(l1, l2) ->
fprintf ppf "@[<2>(seq@ %a@ %a)@]" lam l1 sequence l2
| Lwhile(lcond, lbody) ->
fprintf ppf "@[<2>(while@ %a@ %a)@]" lam lcond lam lbody
| Lfor(param, lo, hi, dir, body) ->
fprintf ppf "@[<2>(for %a@ %a@ %s@ %a@ %a)@]"
Ident.print param lam lo
(match dir with Upto -> "to" | Downto -> "downto")
lam hi lam body
| Lassign(id, expr) ->
fprintf ppf "@[<2>(assign@ %a@ %a)@]" Ident.print id lam expr
| Lsend (k, met, obj, largs, _) ->
let args ppf largs =
List.iter (fun l -> fprintf ppf "@ %a" lam l) largs in
let kind =
if k = Self then "self" else if k = Cached then "cache" else "" in
fprintf ppf "@[<2>(send%s@ %a@ %a%a)@]" kind lam obj lam met args largs
| Levent(expr, ev) ->
let kind =
match ev.lev_kind with
| Lev_before -> "before"
| Lev_after _ -> "after"
| Lev_function -> "funct-body" in
fprintf ppf "@[<2>(%s %i-%i@ %a)@]" kind
ev.lev_loc.Location.loc_start.Lexing.pos_cnum
ev.lev_loc.Location.loc_end.Lexing.pos_cnum
lam expr
| Lifused(id, expr) ->
fprintf ppf "@[<2>(ifused@ %a@ %a)@]" Ident.print id lam expr
and sequence ppf = function
| Lsequence(l1, l2) ->
fprintf ppf "%a@ %a" sequence l1 sequence l2
| l ->
lam ppf l
let structured_constant = struct_const
let lambda = lam
|
