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Rolled back

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Dmitry Boulytchev 2019-12-28 01:47:26 +03:00
parent c854bc1e34
commit d475fe390d
1 changed files with 10 additions and 15 deletions
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25
src/SM.ml
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@ -44,10 +44,10 @@ let show_prg p =
Buffer.contents b;;
(* Values *)
@type value = (string, value array list) Value.t with show
@type value = (string, value array) Value.t with show
(* Local state of the SM *)
@type local = { args : value array; locals : value array; closure : value array list } with show
@type local = { args : value array; locals : value array; closure : value array } with show
(* Global state of the SM *)
@type global = (string, value) arrow
@ -81,7 +81,7 @@ let update glob loc z = function
| Value.Global x -> State.bind x z glob
| Value.Local i -> loc.locals.(i) <- z; glob
| Value.Arg i -> loc.args.(i) <- z; glob
| Value.Access i -> (List.hd (loc.closure)).(i) <- z; glob
| Value.Access i -> loc.closure.(i) <- z; glob
let print_stack memo s =
Printf.eprintf "Memo %!";
@ -121,7 +121,7 @@ let rec eval env (((cstack, stack, glob, loc, i, o) as conf) : config) = functio
| Value.Global x -> glob x
| Value.Local i -> loc.locals.(i)
| Value.Arg i -> loc.args.(i)
| Value.Access i -> (List.hd (loc.closure)).(i)) :: stack, glob, loc, i, o) prg'
| Value.Access i -> loc.closure.(i)) :: stack, glob, loc, i, o) prg'
| LDA x -> eval env (cstack, (Value.Var x) :: stack, glob, loc, i, o) prg'
@ -141,43 +141,38 @@ let rec eval env (((cstack, stack, glob, loc, i, o) as conf) : config) = functio
eval env (cstack, stack', glob, loc, i, o) (if (c = "z" && Value.to_int x = 0) || (c = "nz" && Value.to_int x <> 0) then env#labeled l else prg')
| CLOSURE name -> let BEGIN (_, _, _, dgs, level) :: _ = env#labeled name in
assert (level <= List.length loc.closure);
let closure' = closure_at_level loc.closure level in
let closure =
Array.of_list @@
List.map (
function
| Value.Arg i -> loc.args.(i)
| Value.Local i -> loc.locals.(i)
| Value.Access i -> (List.hd closure').(i)
| Value.Access i -> loc.closure.(i)
| _ -> invalid_arg "wrong value in CLOSURE")
dgs
in
eval env (cstack, (Value.Closure ([], name, closure :: closure')) :: stack, glob, loc, i, o) prg'
eval env (cstack, (Value.Closure ([], name, closure)) :: stack, glob, loc, i, o) prg'
| CALL (f, n) -> let args, stack' = split n stack in
if env#is_label f
then (
let BEGIN (_, _, _, dgs, level) :: _ = env#labeled f in
(*Printf.eprintf "Call %s, level=%d, #closure=%d\n%!" f level (List.length loc.closure); *)
assert (level <= List.length loc.closure);
match dgs with
| [] -> eval env ((prg', loc)::cstack, stack', glob, {args = Array.of_list (List.rev args);
locals = [||];
closure = [||] :: closure_at_level loc.closure level}, i, o) (env#labeled f)
closure = [||]}, i, o) (env#labeled f)
| _ ->
let closure' = closure_at_level loc.closure level in
let closure =
Array.of_list @@
List.map (
function
| Value.Arg i -> loc.args.(i)
| Value.Local i -> loc.locals.(i)
| Value.Access i -> (List.hd closure').(i)
| Value.Access i -> loc.closure.(i)
| _ -> invalid_arg "wrong value in CLOSURE")
dgs
in
eval env ((prg', loc)::cstack, stack', glob, {args = Array.of_list (List.rev args); locals = [||]; closure = closure :: closure'}, i, o) (env#labeled f)
eval env ((prg', loc)::cstack, stack', glob, {args = Array.of_list (List.rev args); locals = [||]; closure = closure}, i, o) (env#labeled f)
)
else eval env (env#builtin f args ((cstack, stack', glob, loc, i, o) : config)) prg'
@ -265,7 +260,7 @@ let run p i =
let (st, i, o, r) = Language.Builtin.eval (State.I, i, o, []) (List.map Obj.magic @@ List.rev args) f in
(cstack, (match r with [r] -> (Obj.magic r)::stack | _ -> Value.Empty :: stack), glob, loc, i, o)
end
([], [], (List.fold_left (fun s (name, value) -> State.bind name value s) glob (Builtin.bindings ())), {locals=[||]; args=[||]; closure=[[||]]}, i, [])
([], [], (List.fold_left (fun s (name, value) -> State.bind name value s) glob (Builtin.bindings ())), {locals=[||]; args=[||]; closure=[||]}, i, [])
p
in
o