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|
open Format
open Asttypes
open Lambda
let rec structured_constant = function
Const_base(Const_int n) -> print_int n
| Const_base(Const_char c) ->
print_string "'"; print_string(Char.escaped c); print_string "'"
| Const_base(Const_string s) ->
print_string "\""; print_string(String.escaped s); print_string "\""
| Const_base(Const_float s) ->
print_string s
| Const_block(tag, []) ->
print_string "["; print_int tag; print_string "]"
| Const_block(tag, sc1::scl) ->
open_hovbox 1;
print_string "["; print_int tag; print_string ":";
print_space();
open_hovbox 0;
structured_constant sc1;
List.iter (fun sc -> print_space(); structured_constant sc) scl;
close_box();
print_string "]";
close_box()
let primitive = function
Pidentity -> print_string "id"
| Pgetglobal id -> print_string "global "; Ident.print id
| Psetglobal id -> print_string "setglobal "; Ident.print id
| Pmakeblock sz -> print_string "makeblock "; print_int sz
| Pfield n -> print_string "field "; print_int n
| Psetfield n -> print_string "setfield "; print_int n
| Pccall(name, arity) -> print_string name
| Praise -> print_string "raise"
| Psequand -> print_string "&&"
| Psequor -> print_string "||"
| Pnot -> print_string "not"
| Pnegint -> print_string "~"
| Paddint -> print_string "+"
| Psubint -> print_string "-"
| Pmulint -> print_string "*"
| Pdivint -> print_string "/"
| Pmodint -> print_string "mod"
| Pandint -> print_string "and"
| Porint -> print_string "or"
| Pxorint -> print_string "xor"
| Plslint -> print_string "lsl"
| Plsrint -> print_string "lsr"
| Pasrint -> print_string "asr"
| Pintcomp(Ceq) -> print_string "=="
| Pintcomp(Cneq) -> print_string "!="
| Pintcomp(Clt) -> print_string "<"
| Pintcomp(Cle) -> print_string "<="
| Pintcomp(Cgt) -> print_string ">"
| Pintcomp(Cge) -> print_string ">="
| Poffsetint n -> print_int n; print_string "+"
| Poffsetref n -> print_int n; print_string "+:="
| Pnegfloat -> print_string "~."
| Paddfloat -> print_string "+."
| Psubfloat -> print_string "-."
| Pmulfloat -> print_string "*."
| Pdivfloat -> print_string "/."
| Pfloatcomp(Ceq) -> print_string "==."
| Pfloatcomp(Cneq) -> print_string "!=."
| Pfloatcomp(Clt) -> print_string "<."
| Pfloatcomp(Cle) -> print_string "<=."
| Pfloatcomp(Cgt) -> print_string ">."
| Pfloatcomp(Cge) -> print_string ">=."
| Pgetstringchar -> print_string "string.get"
| Psetstringchar -> print_string "string.set"
| Pvectlength -> print_string "array.length"
| Pgetvectitem -> print_string "array.get"
| Psetvectitem -> print_string "array.set"
| Ptranslate tbl ->
print_string "translate [";
open_hvbox 0;
for i = 0 to Array.length tbl - 1 do
if i > 0 then print_space();
let (lo, hi, ofs) = tbl.(i) in
print_space(); print_int lo; print_string "/";
print_int hi; print_string "/"; print_int ofs
done;
print_string "]"; close_box()
let rec lambda = function
Lvar id ->
Ident.print id
| Lconst cst ->
structured_constant cst
| Lapply(lfun, largs) ->
open_hovbox 2;
print_string "(apply"; print_space();
lambda lfun;
List.iter (fun l -> print_space(); lambda l) largs;
print_string ")";
close_box()
| Lfunction(param, body) ->
open_hovbox 2;
print_string "(function"; print_space(); Ident.print param;
print_space(); lambda body; print_string ")"; close_box()
| Llet(id, arg, body) ->
open_hovbox 2;
print_string "(let"; print_space();
open_hvbox 1;
print_string "(";
open_hovbox 2; Ident.print id; print_space(); lambda arg; close_box();
letbody body;
print_string ")";
close_box()
| Lletrec(id_arg_list, body) ->
open_hovbox 2;
print_string "(letrec"; print_space();
open_hvbox 1;
print_string "(";
let spc = ref false in
List.iter
(fun (id, l, sz) ->
if !spc then print_space() else spc := true;
Ident.print id; print_string " "; lambda l)
id_arg_list;
close_box();
print_string ")";
print_space(); lambda body;
print_string ")"; close_box()
| Lprim(prim, largs) ->
open_hovbox 2;
print_string "("; primitive prim;
List.iter (fun l -> print_space(); lambda l) largs;
print_string ")";
close_box()
| Lswitch(larg, num_cases1, cases1, num_cases2, cases2) ->
open_hovbox 1;
print_string "(switch "; lambda larg; print_space();
open_vbox 0;
let spc = ref false in
List.iter
(fun (n, l) ->
if !spc then print_space() else spc := true;
open_hvbox 1;
print_string "case int "; print_int n;
print_string ":"; print_space();
lambda l;
close_box())
cases1;
List.iter
(fun (n, l) ->
if !spc then print_space() else spc := true;
open_hvbox 1;
print_string "case tag "; print_int n;
print_string ":"; print_space();
lambda l;
close_box())
cases2;
print_string ")"; close_box(); close_box()
| Lstaticfail ->
print_string "exit"
| Lcatch(lbody, lhandler) ->
open_hovbox 2;
print_string "(catch"; print_space();
lambda lbody; print_break(1, -1);
print_string "with"; print_space(); lambda lhandler;
print_string ")";
close_box()
| Ltrywith(lbody, param, lhandler) ->
open_hovbox 2;
print_string "(try"; print_space();
lambda lbody; print_break(1, -1);
print_string "with "; Ident.print param; print_space();
lambda lhandler;
print_string ")";
close_box()
| Lifthenelse(lcond, lif, lelse) ->
open_hovbox 2;
print_string "(if"; print_space();
lambda lcond; print_space();
lambda lif; print_space();
lambda lelse; print_string ")";
close_box()
| Lsequence(l1, l2) ->
open_hovbox 2;
print_string "(seq"; print_space();
lambda l1; print_space(); sequence l2; print_string ")";
close_box()
| Lwhile(lcond, lbody) ->
open_hovbox 2;
print_string "(while"; print_space();
lambda lcond; print_space();
lambda lbody; print_string ")";
close_box()
| Lfor(param, lo, hi, dir, body) ->
open_hovbox 2;
print_string "(for "; Ident.print param; print_space();
lambda lo; print_space();
print_string(match dir with Upto -> "to" | Downto -> "downto");
print_space();
lambda hi; print_space();
lambda body; print_string ")";
close_box()
| Lshared(l, lbl) ->
lambda l
and sequence = function
Lsequence(l1, l2) ->
sequence l1; print_space(); sequence l2
| l ->
lambda l
and letbody = function
Llet(id, arg, body) ->
print_space();
open_hovbox 2; Ident.print id; print_space(); lambda arg;
close_box();
letbody body
| Lshared(l, lbl) ->
letbody l
| l ->
print_string ")";
close_box();
print_space();
lambda l
|
