Source file script_interpreter.ml
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open Alpha_context
open Script_typed_ir
open Script_ir_translator
open Local_gas_counter
open Script_interpreter_defs
module S = Saturation_repr
type step_constants = Script_typed_ir.step_constants = {
source : Destination.t;
payer : Signature.public_key_hash;
self : Contract_hash.t;
amount : Tez.t;
balance : Tez.t;
chain_id : Chain_id.t;
now : Script_timestamp.t;
level : Script_int.n Script_int.num;
}
type error += Reject of Script.location * Script.expr * execution_trace option
type error += Overflow of Script.location * execution_trace option
type error += Runtime_contract_error of Contract_hash.t
type error += Bad_contract_parameter of Contract.t
type error += Cannot_serialize_failure
type error += Cannot_serialize_storage
type error += Michelson_too_many_recursive_calls
let () =
let open Data_encoding in
let trace_encoding : Script_typed_ir.execution_trace encoding =
list
@@ obj3
(req "location" Script.location_encoding)
(req "gas" Gas.Arith.z_fp_encoding)
(req "stack" (list Script.expr_encoding))
in
register_error_kind
`Temporary
~id:"michelson_v1.script_rejected"
~title:"Script failed"
~description:"A FAILWITH instruction was reached"
(obj3
(req "location" Script.location_encoding)
(req "with" Script.expr_encoding)
(opt "trace" trace_encoding))
(function Reject (loc, v, trace) -> Some (loc, v, trace) | _ -> None)
(fun (loc, v, trace) -> Reject (loc, v, trace)) ;
register_error_kind
`Temporary
~id:"michelson_v1.script_overflow"
~title:"Script failed (overflow error)"
~description:
"A FAIL instruction was reached due to the detection of an overflow"
(obj2
(req "location" Script.location_encoding)
(opt "trace" trace_encoding))
(function Overflow (loc, trace) -> Some (loc, trace) | _ -> None)
(fun (loc, trace) -> Overflow (loc, trace)) ;
register_error_kind
`Temporary
~id:"michelson_v1.runtime_error"
~title:"Script runtime error"
~description:"Toplevel error for all runtime script errors"
(obj2
(req "contract_handle" Contract.originated_encoding)
(req "contract_code" (constant "Deprecated")))
(function
| Runtime_contract_error contract -> Some (contract, ()) | _ -> None)
(fun (contract, ()) -> Runtime_contract_error contract) ;
register_error_kind
`Permanent
~id:"michelson_v1.bad_contract_parameter"
~title:"Contract supplied an invalid parameter"
~description:
"Either no parameter was supplied to a contract with a non-unit \
parameter type, a non-unit parameter was passed to an account, or a \
parameter was supplied of the wrong type"
Data_encoding.(obj1 (req "contract" Contract.encoding))
(function Bad_contract_parameter c -> Some c | _ -> None)
(fun c -> Bad_contract_parameter c) ;
register_error_kind
`Temporary
~id:"michelson_v1.cannot_serialize_failure"
~title:"Not enough gas to serialize argument of FAILWITH"
~description:
"Argument of FAILWITH was too big to be serialized with the provided gas"
Data_encoding.empty
(function Cannot_serialize_failure -> Some () | _ -> None)
(fun () -> Cannot_serialize_failure) ;
register_error_kind
`Temporary
~id:"michelson_v1.cannot_serialize_storage"
~title:"Not enough gas to serialize execution storage"
~description:
"The returned storage was too big to be serialized with the provided gas"
Data_encoding.empty
(function Cannot_serialize_storage -> Some () | _ -> None)
(fun () -> Cannot_serialize_storage)
module Raw = struct
let rec kmap_exit :
type a b c e f m n o. (a, b, c, e, f, m, n, o) kmap_exit_type =
fun instrument g gas body xs ty ys yk ks accu stack ->
let ys = Script_map.update yk (Some accu) ys in
let ks = instrument @@ KMap_enter_body (body, xs, ys, ty, ks) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and kmap_enter :
type a b c d f i j k. (a, b, c, d, f, i, j, k) kmap_enter_type =
fun instrument g gas body xs ty ys ks accu stack ->
match xs with
| [] -> (next [@ocaml.tailcall]) g gas ks ys (accu, stack)
| (xk, xv) :: xs ->
let ks = instrument @@ KMap_exit_body (body, xs, ys, xk, ty, ks) in
let res = (xk, xv) in
let stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas body ks res stack
[@@inline]
and klist_exit : type a b c d e i j. (a, b, c, d, e, i, j) klist_exit_type =
fun instrument g gas body xs ys ty len ks accu stack ->
let ys = Script_list.cons accu ys in
let ks = instrument @@ KList_enter_body (body, xs, ys, ty, len, ks) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and klist_enter : type a b c d e f j. (a, b, c, d, e, f, j) klist_enter_type =
fun instrument g gas body xs ys ty len ks' accu stack ->
match xs with
| [] ->
let ys = Script_list.rev ys in
(next [@ocaml.tailcall]) g gas ks' ys (accu, stack)
| x :: xs ->
let ks = instrument @@ KList_exit_body (body, xs, ys, ty, len, ks') in
(step [@ocaml.tailcall]) g gas body ks x (accu, stack)
[@@inline]
and kloop_in_left :
type a b c d e f g. (a, b, c, d, e, f, g) kloop_in_left_type =
fun g gas ks0 ki ks' accu stack ->
match accu with
| L v -> (step [@ocaml.tailcall]) g gas ki ks0 v stack
| R v -> (next [@ocaml.tailcall]) g gas ks' v stack
[@@inline]
and kloop_in : type a b c r f s. (a, b, c, r, f, s) kloop_in_type =
fun g gas ks0 ki ks' accu stack ->
let accu', stack' = stack in
if accu then (step [@ocaml.tailcall]) g gas ki ks0 accu' stack'
else (next [@ocaml.tailcall]) g gas ks' accu' stack'
[@@inline]
and kiter : type a b s r f c. (a, b, s, r, f, c) kiter_type =
fun instrument g gas body ty xs ks accu stack ->
match xs with
| [] -> (next [@ocaml.tailcall]) g gas ks accu stack
| x :: xs ->
let ks = instrument @@ KIter (body, ty, xs, ks) in
(step [@ocaml.tailcall]) g gas body ks x (accu, stack)
[@@inline]
and next :
type a s r f.
outdated_context * step_constants ->
local_gas_counter ->
(a, s, r, f) continuation ->
a ->
s ->
(r * f * outdated_context * local_gas_counter) tzresult Lwt.t =
fun ((ctxt, _) as g) gas ks0 accu stack ->
match consume_control gas ks0 with
| None -> tzfail Gas.Operation_quota_exceeded
| Some gas -> (
match ks0 with
| KLog (ks, sty, logger) ->
(logger.klog [@ocaml.tailcall]) logger g gas sty ks0 ks accu stack
| KNil -> Lwt.return (Ok (accu, stack, ctxt, gas))
| KCons (k, ks) -> (step [@ocaml.tailcall]) g gas k ks accu stack
| KLoop_in (ki, ks') ->
(kloop_in [@ocaml.tailcall]) g gas ks0 ki ks' accu stack
| KReturn (stack', _, ks) ->
(next [@ocaml.tailcall]) g gas ks accu stack'
| KMap_head (f, ks) -> (next [@ocaml.tailcall]) g gas ks (f accu) stack
| KLoop_in_left (ki, ks') ->
(kloop_in_left [@ocaml.tailcall]) g gas ks0 ki ks' accu stack
| KUndip (x, _, ks) -> (next [@ocaml.tailcall]) g gas ks x (accu, stack)
| KIter (body, ty, xs, ks) ->
(kiter [@ocaml.tailcall]) id g gas body ty xs ks accu stack
| KList_enter_body (body, xs, ys, ty, len, ks) ->
(klist_enter [@ocaml.tailcall])
id
g
gas
body
xs
ys
ty
len
ks
accu
stack
| KList_exit_body (body, xs, ys, ty, len, ks) ->
(klist_exit [@ocaml.tailcall])
id
g
gas
body
xs
ys
ty
len
ks
accu
stack
| KMap_enter_body (body, xs, ys, ty, ks) ->
(kmap_enter [@ocaml.tailcall]) id g gas body xs ty ys ks accu stack
| KMap_exit_body (body, xs, ys, yk, ty, ks) ->
(kmap_exit [@ocaml.tailcall])
id
g
gas
body
xs
ty
ys
yk
ks
accu
stack
| KView_exit (orig_step_constants, ks) ->
let g = (fst g, orig_step_constants) in
(next [@ocaml.tailcall]) g gas ks accu stack)
and ilist_map :
type a b c d e f g h i. (a, b, c, d, e, f, g, h, i) ilist_map_type =
fun instrument g gas body k ks ty accu stack ->
let xs = accu.elements in
let ys = Script_list.empty in
let len = accu.length in
let ks =
instrument @@ KList_enter_body (body, xs, ys, ty, len, KCons (k, ks))
in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and ilist_iter :
type a b c d e f g cmp. (a, b, c, d, e, f, g, cmp) ilist_iter_type =
fun instrument g gas body ty k ks accu stack ->
let xs = accu.elements in
let ks = instrument @@ KIter (body, ty, xs, KCons (k, ks)) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and iset_iter : type a b c d e f g. (a, b, c, d, e, f, g) iset_iter_type =
fun instrument g gas body ty k ks accu stack ->
let set = accu in
let l = List.rev (Script_set.fold (fun e acc -> e :: acc) set []) in
let ks = instrument @@ KIter (body, ty, l, KCons (k, ks)) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and imap_map :
type a b c d e f g h i j. (a, b, c, d, e, f, g, h, i, j) imap_map_type =
fun instrument g gas body k ks ty accu stack ->
let map = accu in
let xs = List.rev (Script_map.fold (fun k v a -> (k, v) :: a) map []) in
let ys = Script_map.empty_from map in
let ks = instrument @@ KMap_enter_body (body, xs, ys, ty, KCons (k, ks)) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and imap_iter :
type a b c d e f g h cmp. (a, b, c, d, e, f, g, h, cmp) imap_iter_type =
fun instrument g gas body ty k ks accu stack ->
let map = accu in
let l = List.rev (Script_map.fold (fun k v a -> (k, v) :: a) map []) in
let ks = instrument @@ KIter (body, ty, l, KCons (k, ks)) in
let accu, stack = stack in
(next [@ocaml.tailcall]) g gas ks accu stack
[@@inline]
and imul_teznat : type a b c d e f. (a, b, c, d, e, f) imul_teznat_type =
fun logger g gas loc k ks accu stack ->
let x = accu in
let y, stack = stack in
match Script_int.to_int64 y with
| None -> get_log logger >>=? fun log -> tzfail (Overflow (loc, log))
| Some y ->
Tez.(x *? y) >>?= fun res ->
(step [@ocaml.tailcall]) g gas k ks res stack
and imul_nattez : type a b c d e f. (a, b, c, d, e, f) imul_nattez_type =
fun logger g gas loc k ks accu stack ->
let y = accu in
let x, stack = stack in
match Script_int.to_int64 y with
| None -> get_log logger >>=? fun log -> tzfail (Overflow (loc, log))
| Some y ->
Tez.(x *? y) >>?= fun res ->
(step [@ocaml.tailcall]) g gas k ks res stack
and ilsl_nat : type a b c d e f. (a, b, c, d, e, f) ilsl_nat_type =
fun logger g gas loc k ks accu stack ->
let x = accu and y, stack = stack in
match Script_int.shift_left_n x y with
| None -> get_log logger >>=? fun log -> tzfail (Overflow (loc, log))
| Some x -> (step [@ocaml.tailcall]) g gas k ks x stack
and ilsr_nat : type a b c d e f. (a, b, c, d, e, f) ilsr_nat_type =
fun logger g gas loc k ks accu stack ->
let x = accu and y, stack = stack in
match Script_int.shift_right_n x y with
| None -> get_log logger >>=? fun log -> tzfail (Overflow (loc, log))
| Some r -> (step [@ocaml.tailcall]) g gas k ks r stack
and ilsl_bytes : type a b c d e f. (a, b, c, d, e, f) ilsl_bytes_type =
fun logger g gas loc k ks accu stack ->
let x = accu and y, stack = stack in
match Script_bytes.bytes_lsl x y with
| None -> get_log logger >>=? fun log -> tzfail (Overflow (loc, log))
| Some res -> (step [@ocaml.tailcall]) g gas k ks res stack
and ifailwith : ifailwith_type =
{
ifailwith =
(fun logger (ctxt, _) gas kloc tv accu ->
let v = accu in
let ctxt = update_context gas ctxt in
trace Cannot_serialize_failure (unparse_data ctxt Optimized tv v)
>>=? fun (v, _ctxt) ->
get_log logger >>=? fun log -> tzfail (Reject (kloc, v, log)));
}
and iexec : type a b c d e f g. (a, b, c, d, e, f, g) iexec_type =
fun instrument logger g gas cont_sty k ks accu stack ->
let arg = accu and code, stack = stack in
let log_code b =
let body =
match logger with
| None -> b.kinstr
| Some logger -> logger.log_kinstr logger b.kbef b.kinstr
in
let ks = instrument @@ KReturn (stack, cont_sty, KCons (k, ks)) in
(body, ks)
in
match code with
| Lam (body, _) ->
let body, ks = log_code body in
(step [@ocaml.tailcall]) g gas body ks arg (EmptyCell, EmptyCell)
| LamRec (body, _) ->
let body, ks = log_code body in
(step [@ocaml.tailcall]) g gas body ks arg (code, (EmptyCell, EmptyCell))
and iview : type a b c d e f i o. (a, b, c, d, e, f, i, o) iview_type =
fun instrument
(ctxt, sc)
gas
(View_signature {name; input_ty; output_ty})
stack_ty
k
ks
accu
stack ->
let input = accu in
let addr, stack = stack in
let ctxt = update_context gas ctxt in
let return_none ctxt =
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks None stack
in
let legacy = Script_ir_translator_config.make ~legacy:true () in
match addr.destination with
| Contract (Implicit _) | Tx_rollup _ | Sc_rollup _ | Zk_rollup _ ->
(return_none [@ocaml.tailcall]) ctxt
| Contract (Originated contract_hash as c) -> (
Contract.get_script ctxt contract_hash >>=? fun (ctxt, script_opt) ->
match script_opt with
| None -> (return_none [@ocaml.tailcall]) ctxt
| Some script -> (
parse_script
~elab_conf:legacy
~allow_forged_in_storage:true
ctxt
script
>>=? fun (Ex_script (Script {storage; storage_type; views; _}), ctxt)
->
Gas.consume ctxt (Interp_costs.view_get name views) >>?= fun ctxt ->
match Script_map.get name views with
| None -> (return_none [@ocaml.tailcall]) ctxt
| Some view -> (
let view_result =
Script_ir_translator.parse_view
ctxt
~elab_conf:legacy
storage_type
view
in
trace_eval
(fun () ->
Script_tc_errors.Ill_typed_contract
(Micheline.strip_locations view.view_code, []))
view_result
>>=? fun ( Typed_view
{
input_ty = input_ty';
output_ty = output_ty';
kinstr;
original_code_expr = _;
},
ctxt ) ->
let io_ty =
let open Gas_monad.Syntax in
let* out_eq =
ty_eq ~error_details:Fast output_ty' output_ty
in
let+ in_eq = ty_eq ~error_details:Fast input_ty input_ty' in
(out_eq, in_eq)
in
Gas_monad.run ctxt io_ty >>?= fun (eq, ctxt) ->
match eq with
| Error Inconsistent_types_fast ->
(return_none [@ocaml.tailcall]) ctxt
| Ok (Eq, Eq) ->
let kcons = KCons (ICons_some (kinstr_location k, k), ks) in
Contract.get_balance_carbonated ctxt c
>>=? fun (ctxt, balance) ->
let gas, ctxt =
local_gas_counter_and_outdated_context ctxt
in
let sty =
Option.map (fun t -> Item_t (output_ty, t)) stack_ty
in
(step [@ocaml.tailcall])
( ctxt,
{
source =
Destination.Contract (Contract.Originated sc.self);
self = contract_hash;
amount = Tez.zero;
balance;
payer = sc.payer;
chain_id = sc.chain_id;
now = sc.now;
level = sc.level;
} )
gas
kinstr
(instrument
@@ KView_exit (sc, KReturn (stack, sty, kcons)))
(input, storage)
(EmptyCell, EmptyCell))))
and step : type a s b t r f. (a, s, b, t, r, f) step_type =
fun ((ctxt, sc) as g) gas i ks accu stack ->
match consume_instr gas i accu stack with
| None -> tzfail Gas.Operation_quota_exceeded
| Some gas -> (
match i with
| ILog (_, sty, event, logger, k) ->
(logger.ilog [@ocaml.tailcall])
logger
event
sty
g
gas
k
ks
accu
stack
| IHalt _ -> (next [@ocaml.tailcall]) g gas ks accu stack
| IDrop (_, k) ->
let accu, stack = stack in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IDup (_, k) -> (step [@ocaml.tailcall]) g gas k ks accu (accu, stack)
| ISwap (_, k) ->
let top, stack = stack in
(step [@ocaml.tailcall]) g gas k ks top (accu, stack)
| IConst (_, _ty, v, k) ->
(step [@ocaml.tailcall]) g gas k ks v (accu, stack)
| ICons_some (_, k) ->
(step [@ocaml.tailcall]) g gas k ks (Some accu) stack
| ICons_none (_, _ty, k) ->
(step [@ocaml.tailcall]) g gas k ks None (accu, stack)
| IIf_none {branch_if_none; branch_if_some; k; _} -> (
match accu with
| None ->
let accu, stack = stack in
(step [@ocaml.tailcall])
g
gas
branch_if_none
(KCons (k, ks))
accu
stack
| Some v ->
(step [@ocaml.tailcall])
g
gas
branch_if_some
(KCons (k, ks))
v
stack)
| IOpt_map {body; k; loc = _} -> (
match accu with
| None -> (step [@ocaml.tailcall]) g gas k ks None stack
| Some v ->
let ks' = KMap_head (Option.some, KCons (k, ks)) in
(step [@ocaml.tailcall]) g gas body ks' v stack)
| ICons_pair (_, k) ->
let b, stack = stack in
(step [@ocaml.tailcall]) g gas k ks (accu, b) stack
| IUnpair (_, k) ->
let a, b = accu in
(step [@ocaml.tailcall]) g gas k ks a (b, stack)
| ICar (_, k) ->
let a, _ = accu in
(step [@ocaml.tailcall]) g gas k ks a stack
| ICdr (_, k) ->
let _, b = accu in
(step [@ocaml.tailcall]) g gas k ks b stack
| ICons_left (_, _tyb, k) ->
(step [@ocaml.tailcall]) g gas k ks (L accu) stack
| ICons_right (_, _tya, k) ->
(step [@ocaml.tailcall]) g gas k ks (R accu) stack
| IIf_left {branch_if_left; branch_if_right; k; _} -> (
match accu with
| L v ->
(step [@ocaml.tailcall])
g
gas
branch_if_left
(KCons (k, ks))
v
stack
| R v ->
(step [@ocaml.tailcall])
g
gas
branch_if_right
(KCons (k, ks))
v
stack)
| ICons_list (_, k) ->
let tl, stack = stack in
let accu = Script_list.cons accu tl in
(step [@ocaml.tailcall]) g gas k ks accu stack
| INil (_, _ty, k) ->
let stack = (accu, stack) in
let accu = Script_list.empty in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IIf_cons {branch_if_cons; branch_if_nil; k; _} -> (
match Script_list.uncons accu with
| None ->
let accu, stack = stack in
(step [@ocaml.tailcall])
g
gas
branch_if_nil
(KCons (k, ks))
accu
stack
| Some (hd, tl) ->
(step [@ocaml.tailcall])
g
gas
branch_if_cons
(KCons (k, ks))
hd
(tl, stack))
| IList_map (_, body, ty, k) ->
(ilist_map [@ocaml.tailcall]) id g gas body k ks ty accu stack
| IList_size (_, k) ->
let list = accu in
let len = Script_int.(abs (of_int list.length)) in
(step [@ocaml.tailcall]) g gas k ks len stack
| IList_iter (_, ty, body, k) ->
(ilist_iter [@ocaml.tailcall]) id g gas body ty k ks accu stack
| IEmpty_set (_, ty, k) ->
let res = Script_set.empty ty in
let stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks res stack
| ISet_iter (_, ty, body, k) ->
(iset_iter [@ocaml.tailcall]) id g gas body ty k ks accu stack
| ISet_mem (_, k) ->
let set, stack = stack in
let res = Script_set.mem accu set in
(step [@ocaml.tailcall]) g gas k ks res stack
| ISet_update (_, k) ->
let presence, (set, stack) = stack in
let res = Script_set.update accu presence set in
(step [@ocaml.tailcall]) g gas k ks res stack
| ISet_size (_, k) ->
let res = Script_set.size accu in
(step [@ocaml.tailcall]) g gas k ks res stack
| IEmpty_map (_, kty, _vty, k) ->
let res = Script_map.empty kty and stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMap_map (_, ty, body, k) ->
(imap_map [@ocaml.tailcall]) id g gas body k ks ty accu stack
| IMap_iter (_, kvty, body, k) ->
(imap_iter [@ocaml.tailcall]) id g gas body kvty k ks accu stack
| IMap_mem (_, k) ->
let map, stack = stack in
let res = Script_map.mem accu map in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMap_get (_, k) ->
let map, stack = stack in
let res = Script_map.get accu map in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMap_update (_, k) ->
let v, (map, stack) = stack in
let key = accu in
let res = Script_map.update key v map in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMap_get_and_update (_, k) ->
let key = accu in
let v, (map, rest) = stack in
let map' = Script_map.update key v map in
let v' = Script_map.get key map in
(step [@ocaml.tailcall]) g gas k ks v' (map', rest)
| IMap_size (_, k) ->
let res = Script_map.size accu in
(step [@ocaml.tailcall]) g gas k ks res stack
| IEmpty_big_map (_, tk, tv, k) ->
let ebm = Script_big_map.empty tk tv in
(step [@ocaml.tailcall]) g gas k ks ebm (accu, stack)
| IBig_map_mem (_, k) ->
let map, stack = stack in
let key = accu in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
Script_big_map.mem ctxt key map )
>>=? fun (res, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks res stack
| IBig_map_get (_, k) ->
let map, stack = stack in
let key = accu in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
Script_big_map.get ctxt key map )
>>=? fun (res, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks res stack
| IBig_map_update (_, k) ->
let key = accu in
let maybe_value, (map, stack) = stack in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
Script_big_map.update ctxt key maybe_value map )
>>=? fun (big_map, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks big_map stack
| IBig_map_get_and_update (_, k) ->
let key = accu in
let v, (map, stack) = stack in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
Script_big_map.get_and_update ctxt key v map )
>>=? fun ((v', map'), ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks v' (map', stack)
| IAdd_seconds_to_timestamp (_, k) ->
let n = accu in
let t, stack = stack in
let result = Script_timestamp.add_delta t n in
(step [@ocaml.tailcall]) g gas k ks result stack
| IAdd_timestamp_to_seconds (_, k) ->
let t = accu in
let n, stack = stack in
let result = Script_timestamp.add_delta t n in
(step [@ocaml.tailcall]) g gas k ks result stack
| ISub_timestamp_seconds (_, k) ->
let t = accu in
let s, stack = stack in
let result = Script_timestamp.sub_delta t s in
(step [@ocaml.tailcall]) g gas k ks result stack
| IDiff_timestamps (_, k) ->
let t1 = accu in
let t2, stack = stack in
let result = Script_timestamp.diff t1 t2 in
(step [@ocaml.tailcall]) g gas k ks result stack
| IConcat_string_pair (_, k) ->
let x = accu in
let y, stack = stack in
let s = Script_string.concat_pair x y in
(step [@ocaml.tailcall]) g gas k ks s stack
| IConcat_string (_, k) ->
let ss = accu in
let total_length =
List.fold_left
(fun acc s -> S.add acc (S.safe_int (Script_string.length s)))
S.zero
ss.elements
in
consume gas (Interp_costs.concat_string total_length)
>>?= fun gas ->
let s = Script_string.concat ss.elements in
(step [@ocaml.tailcall]) g gas k ks s stack
| ISlice_string (_, k) ->
let offset = accu and length, (s, stack) = stack in
let s_length = Z.of_int (Script_string.length s) in
let offset = Script_int.to_zint offset in
let length = Script_int.to_zint length in
if Compare.Z.(offset < s_length && Z.add offset length <= s_length)
then
let s = Script_string.sub s (Z.to_int offset) (Z.to_int length) in
(step [@ocaml.tailcall]) g gas k ks (Some s) stack
else (step [@ocaml.tailcall]) g gas k ks None stack
| IString_size (_, k) ->
let s = accu in
let result = Script_int.(abs (of_int (Script_string.length s))) in
(step [@ocaml.tailcall]) g gas k ks result stack
| IConcat_bytes_pair (_, k) ->
let x = accu in
let y, stack = stack in
let s = Bytes.cat x y in
(step [@ocaml.tailcall]) g gas k ks s stack
| IConcat_bytes (_, k) ->
let ss = accu in
let total_length =
List.fold_left
(fun acc s -> S.add acc (S.safe_int (Bytes.length s)))
S.zero
ss.elements
in
consume gas (Interp_costs.concat_string total_length)
>>?= fun gas ->
let s = Bytes.concat Bytes.empty ss.elements in
(step [@ocaml.tailcall]) g gas k ks s stack
| ISlice_bytes (_, k) ->
let offset = accu and length, (s, stack) = stack in
let s_length = Z.of_int (Bytes.length s) in
let offset = Script_int.to_zint offset in
let length = Script_int.to_zint length in
if Compare.Z.(offset < s_length && Z.add offset length <= s_length)
then
let s = Bytes.sub s (Z.to_int offset) (Z.to_int length) in
(step [@ocaml.tailcall]) g gas k ks (Some s) stack
else (step [@ocaml.tailcall]) g gas k ks None stack
| IBytes_size (_, k) ->
let s = accu in
let result = Script_int.(abs (of_int (Bytes.length s))) in
(step [@ocaml.tailcall]) g gas k ks result stack
| ILsl_bytes (loc, k) -> ilsl_bytes None g gas loc k ks accu stack
| ILsr_bytes (_, k) ->
let x = accu and y, stack = stack in
let res = Script_bytes.bytes_lsr x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IOr_bytes (_, k) ->
let x = accu and y, stack = stack in
let res = Script_bytes.bytes_or x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAnd_bytes (_, k) ->
let x = accu and y, stack = stack in
let res = Script_bytes.bytes_and x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IXor_bytes (_, k) ->
let x = accu and y, stack = stack in
let res = Script_bytes.bytes_xor x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| INot_bytes (_, k) ->
let x = accu in
let res = Script_bytes.bytes_not x in
(step [@ocaml.tailcall]) g gas k ks res stack
| IBytes_nat (_, k) ->
let n = accu in
let result = Script_bytes.bytes_of_nat_be n in
(step [@ocaml.tailcall]) g gas k ks result stack
| INat_bytes (_, k) ->
let s = accu in
let result = Script_bytes.nat_of_bytes_be s in
(step [@ocaml.tailcall]) g gas k ks result stack
| IBytes_int (_, k) ->
let n = accu in
let result = Script_bytes.bytes_of_int_be n in
(step [@ocaml.tailcall]) g gas k ks result stack
| IInt_bytes (_, k) ->
let s = accu in
let result = Script_bytes.int_of_bytes_be s in
(step [@ocaml.tailcall]) g gas k ks result stack
| IAdd_tez (_, k) ->
let x = accu in
let y, stack = stack in
Tez.(x +? y) >>?= fun res ->
(step [@ocaml.tailcall]) g gas k ks res stack
| ISub_tez (_, k) ->
let x = accu in
let y, stack = stack in
let res = Tez.sub_opt x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| ISub_tez_legacy (_, k) ->
let x = accu in
let y, stack = stack in
Tez.(x -? y) >>?= fun res ->
(step [@ocaml.tailcall]) g gas k ks res stack
| IMul_teznat (loc, k) -> imul_teznat None g gas loc k ks accu stack
| IMul_nattez (loc, k) -> imul_nattez None g gas loc k ks accu stack
| IOr (_, k) ->
let x = accu in
let y, stack = stack in
(step [@ocaml.tailcall]) g gas k ks (x || y) stack
| IAnd (_, k) ->
let x = accu in
let y, stack = stack in
(step [@ocaml.tailcall]) g gas k ks (x && y) stack
| IXor (_, k) ->
let x = accu in
let y, stack = stack in
let res = Compare.Bool.(x <> y) in
(step [@ocaml.tailcall]) g gas k ks res stack
| INot (_, k) ->
let x = accu in
(step [@ocaml.tailcall]) g gas k ks (not x) stack
| IIs_nat (_, k) ->
let x = accu in
let res = Script_int.is_nat x in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAbs_int (_, k) ->
let x = accu in
let res = Script_int.abs x in
(step [@ocaml.tailcall]) g gas k ks res stack
| IInt_nat (_, k) ->
let x = accu in
let res = Script_int.int x in
(step [@ocaml.tailcall]) g gas k ks res stack
| INeg (_, k) ->
let x = accu in
let res = Script_int.neg x in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAdd_int (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.add x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAdd_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.add_n x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| ISub_int (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.sub x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMul_int (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.mul x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMul_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.mul_n x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IEdiv_teznat (_, k) ->
let x = accu and y, stack = stack in
let x = Script_int.of_int64 (Tez.to_mutez x) in
let result =
match Script_int.ediv x y with
| None -> None
| Some (q, r) -> (
match (Script_int.to_int64 q, Script_int.to_int64 r) with
| Some q, Some r -> (
match (Tez.of_mutez q, Tez.of_mutez r) with
| Some q, Some r -> Some (q, r)
| _ -> assert false)
| _ -> assert false)
in
(step [@ocaml.tailcall]) g gas k ks result stack
| IEdiv_tez (_, k) ->
let x = accu and y, stack = stack in
let x = Script_int.abs (Script_int.of_int64 (Tez.to_mutez x)) in
let y = Script_int.abs (Script_int.of_int64 (Tez.to_mutez y)) in
let result =
match Script_int.ediv_n x y with
| None -> None
| Some (q, r) -> (
match Script_int.to_int64 r with
| None -> assert false
| Some r -> (
match Tez.of_mutez r with
| None -> assert false
| Some r -> Some (q, r)))
in
(step [@ocaml.tailcall]) g gas k ks result stack
| IEdiv_int (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.ediv x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IEdiv_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.ediv_n x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| ILsl_nat (loc, k) -> ilsl_nat None g gas loc k ks accu stack
| ILsr_nat (loc, k) -> ilsr_nat None g gas loc k ks accu stack
| IOr_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.logor x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAnd_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.logand x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IAnd_int_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.logand x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IXor_nat (_, k) ->
let x = accu and y, stack = stack in
let res = Script_int.logxor x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| INot_int (_, k) ->
let x = accu in
let res = Script_int.lognot x in
(step [@ocaml.tailcall]) g gas k ks res stack
| IIf {branch_if_true; branch_if_false; k; _} ->
let res, stack = stack in
if accu then
(step [@ocaml.tailcall])
g
gas
branch_if_true
(KCons (k, ks))
res
stack
else
(step [@ocaml.tailcall])
g
gas
branch_if_false
(KCons (k, ks))
res
stack
| ILoop (_, body, k) ->
let ks = KLoop_in (body, KCons (k, ks)) in
(next [@ocaml.tailcall]) g gas ks accu stack
| ILoop_left (_, bl, br) ->
let ks = KLoop_in_left (bl, KCons (br, ks)) in
(next [@ocaml.tailcall]) g gas ks accu stack
| IDip (_, b, ty, k) ->
let ign = accu in
let ks = KUndip (ign, ty, KCons (k, ks)) in
let accu, stack = stack in
(step [@ocaml.tailcall]) g gas b ks accu stack
| IExec (_, sty, k) -> iexec id None g gas sty k ks accu stack
| IApply (_, capture_ty, k) ->
let capture = accu in
let lam, stack = stack in
apply ctxt gas capture_ty capture lam >>=? fun (lam', ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks lam' stack
| ILambda (_, lam, k) ->
(step [@ocaml.tailcall]) g gas k ks lam (accu, stack)
| IFailwith (kloc, tv) ->
let {ifailwith} = ifailwith in
ifailwith None g gas kloc tv accu
| ICompare (_, ty, k) ->
let a = accu in
let b, stack = stack in
let r =
Script_int.of_int @@ Script_comparable.compare_comparable ty a b
in
(step [@ocaml.tailcall]) g gas k ks r stack
| IEq (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a = 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| INeq (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a <> 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| ILt (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a < 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| ILe (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a <= 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| IGt (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a > 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| IGe (_, k) ->
let a = accu in
let a = Script_int.compare a Script_int.zero in
let a = Compare.Int.(a >= 0) in
(step [@ocaml.tailcall]) g gas k ks a stack
| IPack (_, ty, k) ->
let value = accu in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
Script_ir_translator.pack_data ctxt ty value )
>>=? fun (bytes, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks bytes stack
| IUnpack (_, ty, k) ->
let bytes = accu in
( use_gas_counter_in_context ctxt gas @@ fun ctxt ->
unpack ctxt ~ty ~bytes )
>>=? fun (opt, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks opt stack
| IAddress (_, k) ->
let typed_contract = accu in
let destination = Typed_contract.destination typed_contract in
let entrypoint = Typed_contract.entrypoint typed_contract in
let address = {destination; entrypoint} in
(step [@ocaml.tailcall]) g gas k ks address stack
| IContract (loc, t, entrypoint, k) -> (
let addr = accu in
let entrypoint_opt =
if Entrypoint.is_default addr.entrypoint then Some entrypoint
else if Entrypoint.is_default entrypoint then Some addr.entrypoint
else None
in
match entrypoint_opt with
| Some entrypoint ->
let ctxt = update_context gas ctxt in
Script_ir_translator.parse_contract_for_script
ctxt
loc
t
addr.destination
~entrypoint
>>=? fun (ctxt, maybe_contract) ->
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
let accu = maybe_contract in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks accu stack
| None -> (step [@ocaml.tailcall]) (ctxt, sc) gas k ks None stack)
| ITransfer_tokens (loc, k) ->
let p = accu in
let amount, (typed_contract, stack) = stack in
transfer (ctxt, sc) gas amount loc typed_contract p
>>=? fun (accu, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks accu stack
| IImplicit_account (_, k) ->
let key = accu in
let res = Typed_implicit key in
(step [@ocaml.tailcall]) g gas k ks res stack
| IView (_, view_signature, stack_ty, k) ->
(iview [@ocaml.tailcall])
id
g
gas
view_signature
stack_ty
k
ks
accu
stack
| ICreate_contract {storage_type; code; k; loc = _} ->
let delegate = accu in
let credit, (init, stack) = stack in
create_contract g gas storage_type code delegate credit init
>>=? fun (res, contract, ctxt, gas) ->
let destination = Destination.Contract (Originated contract) in
let stack =
({destination; entrypoint = Entrypoint.default}, stack)
in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks res stack
| ISet_delegate (_, k) ->
let delegate = accu in
let operation = Delegation delegate in
let ctxt = update_context gas ctxt in
fresh_internal_nonce ctxt >>?= fun (ctxt, nonce) ->
let piop =
Internal_operation
{
source = Destination.Contract (Contract.Originated sc.self);
operation;
nonce;
}
in
let res = {piop; lazy_storage_diff = None} in
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks res stack
| IBalance (_, k) ->
let ctxt = update_context gas ctxt in
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
let g = (ctxt, sc) in
(step [@ocaml.tailcall]) g gas k ks sc.balance (accu, stack)
| ILevel (_, k) ->
(step [@ocaml.tailcall]) g gas k ks sc.level (accu, stack)
| INow (_, k) -> (step [@ocaml.tailcall]) g gas k ks sc.now (accu, stack)
| IMin_block_time (_, k) ->
let ctxt = update_context gas ctxt in
let min_block_time =
Alpha_context.Constants.minimal_block_delay ctxt
|> Period.to_seconds |> Script_int.of_int64
|> Script_int.abs
in
let new_stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks min_block_time new_stack
| ICheck_signature (_, k) ->
let key = accu and signature, (message, stack) = stack in
let res = Script_signature.check key signature message in
(step [@ocaml.tailcall]) g gas k ks res stack
| IHash_key (_, k) ->
let key = accu in
let res = Signature.Public_key.hash key in
(step [@ocaml.tailcall]) g gas k ks res stack
| IBlake2b (_, k) ->
let bytes = accu in
let hash = Raw_hashes.blake2b bytes in
(step [@ocaml.tailcall]) g gas k ks hash stack
| ISha256 (_, k) ->
let bytes = accu in
let hash = Raw_hashes.sha256 bytes in
(step [@ocaml.tailcall]) g gas k ks hash stack
| ISha512 (_, k) ->
let bytes = accu in
let hash = Raw_hashes.sha512 bytes in
(step [@ocaml.tailcall]) g gas k ks hash stack
| ISource (_, k) ->
let destination : Destination.t = Contract (Implicit sc.payer) in
let res = {destination; entrypoint = Entrypoint.default} in
(step [@ocaml.tailcall]) g gas k ks res (accu, stack)
| ISender (_, k) ->
let destination : Destination.t = sc.source in
let res = {destination; entrypoint = Entrypoint.default} in
(step [@ocaml.tailcall]) g gas k ks res (accu, stack)
| ISelf (_, ty, entrypoint, k) ->
let res =
Typed_originated
{arg_ty = ty; contract_hash = sc.self; entrypoint}
in
(step [@ocaml.tailcall]) g gas k ks res (accu, stack)
| ISelf_address (_, k) ->
let destination : Destination.t = Contract (Originated sc.self) in
let res = {destination; entrypoint = Entrypoint.default} in
(step [@ocaml.tailcall]) g gas k ks res (accu, stack)
| IAmount (_, k) ->
let accu = sc.amount and stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IDig (_, _n, n', k) ->
let (accu, stack), x =
interp_stack_prefix_preserving_operation
(fun v stack -> (stack, v))
n'
accu
stack
in
let accu = x and stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IDug (_, _n, n', k) ->
let v = accu in
let accu, stack = stack in
let (accu, stack), () =
interp_stack_prefix_preserving_operation
(fun accu stack -> ((v, (accu, stack)), ()))
n'
accu
stack
in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IDipn (_, _n, n', b, k) ->
let accu, stack, restore_prefix = kundip n' accu stack k in
let ks = KCons (restore_prefix, ks) in
(step [@ocaml.tailcall]) g gas b ks accu stack
| IDropn (_, _n, n', k) ->
let stack =
let rec aux :
type a s b t.
(b, t, b, t, a, s, a, s) stack_prefix_preservation_witness ->
a ->
s ->
b * t =
fun w accu stack ->
match w with
| KRest -> (accu, stack)
| KPrefix (_, _ty, w) ->
let accu, stack = stack in
aux w accu stack
in
aux n' accu stack
in
let accu, stack = stack in
(step [@ocaml.tailcall]) g gas k ks accu stack
| ISapling_empty_state (_, memo_size, k) ->
let state = Sapling.empty_state ~memo_size () in
(step [@ocaml.tailcall]) g gas k ks state (accu, stack)
| ISapling_verify_update (_, k) -> (
let transaction = accu in
let state, stack = stack in
let address = Contract_hash.to_b58check sc.self in
let sc_chain_id = Script_chain_id.make sc.chain_id in
let chain_id = Script_chain_id.to_b58check sc_chain_id in
let anti_replay = address ^ chain_id in
let ctxt = update_context gas ctxt in
Sapling.verify_update ctxt state transaction anti_replay
>>=? fun (ctxt, balance_state_opt) ->
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
match balance_state_opt with
| Some (balance, state) ->
let state =
Some
( Bytes.of_string transaction.bound_data,
(Script_int.of_int64 balance, state) )
in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks state stack
| None -> (step [@ocaml.tailcall]) (ctxt, sc) gas k ks None stack)
| ISapling_verify_update_deprecated (_, k) -> (
let transaction = accu in
let state, stack = stack in
let address = Contract_hash.to_b58check sc.self in
let sc_chain_id = Script_chain_id.make sc.chain_id in
let chain_id = Script_chain_id.to_b58check sc_chain_id in
let anti_replay = address ^ chain_id in
let ctxt = update_context gas ctxt in
Sapling.Legacy.verify_update ctxt state transaction anti_replay
>>=? fun (ctxt, balance_state_opt) ->
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
match balance_state_opt with
| Some (balance, state) ->
let state = Some (Script_int.of_int64 balance, state) in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks state stack
| None -> (step [@ocaml.tailcall]) (ctxt, sc) gas k ks None stack)
| IChainId (_, k) ->
let accu = Script_chain_id.make sc.chain_id
and stack = (accu, stack) in
(step [@ocaml.tailcall]) g gas k ks accu stack
| INever _ -> ( match accu with _ -> .)
| IVoting_power (_, k) ->
let key_hash = accu in
let ctxt = update_context gas ctxt in
Vote.get_voting_power ctxt key_hash >>=? fun (ctxt, power) ->
let power = Script_int.(abs (of_int64 power)) in
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks power stack
| ITotal_voting_power (_, k) ->
let ctxt = update_context gas ctxt in
Vote.get_total_voting_power ctxt >>=? fun (ctxt, power) ->
let power = Script_int.(abs (of_int64 power)) in
let gas, ctxt = local_gas_counter_and_outdated_context ctxt in
let g = (ctxt, sc) in
(step [@ocaml.tailcall]) g gas k ks power (accu, stack)
| IKeccak (_, k) ->
let bytes = accu in
let hash = Raw_hashes.keccak256 bytes in
(step [@ocaml.tailcall]) g gas k ks hash stack
| ISha3 (_, k) ->
let bytes = accu in
let hash = Raw_hashes.sha3_256 bytes in
(step [@ocaml.tailcall]) g gas k ks hash stack
| IAdd_bls12_381_g1 (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.G1.add x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IAdd_bls12_381_g2 (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.G2.add x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IAdd_bls12_381_fr (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.Fr.add x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IMul_bls12_381_g1 (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.G1.mul x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IMul_bls12_381_g2 (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.G2.mul x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IMul_bls12_381_fr (_, k) ->
let x = accu and y, stack = stack in
let accu = Script_bls.Fr.mul x y in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IMul_bls12_381_fr_z (_, k) ->
let x = accu and y, stack = stack in
let x = Script_bls.Fr.of_z (Script_int.to_zint x) in
let res = Script_bls.Fr.mul x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IMul_bls12_381_z_fr (_, k) ->
let y = accu and x, stack = stack in
let x = Script_bls.Fr.of_z (Script_int.to_zint x) in
let res = Script_bls.Fr.mul x y in
(step [@ocaml.tailcall]) g gas k ks res stack
| IInt_bls12_381_fr (_, k) ->
let x = accu in
let res = Script_int.of_zint (Script_bls.Fr.to_z x) in
(step [@ocaml.tailcall]) g gas k ks res stack
| INeg_bls12_381_g1 (_, k) ->
let x = accu in
let accu = Script_bls.G1.negate x in
(step [@ocaml.tailcall]) g gas k ks accu stack
| INeg_bls12_381_g2 (_, k) ->
let x = accu in
let accu = Script_bls.G2.negate x in
(step [@ocaml.tailcall]) g gas k ks accu stack
| INeg_bls12_381_fr (_, k) ->
let x = accu in
let accu = Script_bls.Fr.negate x in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IPairing_check_bls12_381 (_, k) ->
let pairs = accu in
let check = Script_bls.pairing_check pairs.elements in
(step [@ocaml.tailcall]) g gas k ks check stack
| IComb (_, _, witness, k) ->
let rec aux :
type a b s c d t.
(a, b, s, c, d, t) comb_gadt_witness ->
a * (b * s) ->
c * (d * t) =
fun witness stack ->
match (witness, stack) with
| Comb_one, stack -> stack
| Comb_succ witness', (a, tl) ->
let b, tl' = aux witness' tl in
((a, b), tl')
in
let stack = aux witness (accu, stack) in
let accu, stack = stack in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IUncomb (_, _, witness, k) ->
let rec aux :
type a b s c d t.
(a, b, s, c, d, t) uncomb_gadt_witness ->
a * (b * s) ->
c * (d * t) =
fun witness stack ->
match (witness, stack) with
| Uncomb_one, stack -> stack
| Uncomb_succ witness', ((a, b), tl) -> (a, aux witness' (b, tl))
in
let stack = aux witness (accu, stack) in
let accu, stack = stack in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IComb_get (_, _, witness, k) ->
let comb = accu in
let rec aux :
type before after.
(before, after) comb_get_gadt_witness -> before -> after =
fun witness comb ->
match (witness, comb) with
| Comb_get_zero, v -> v
| Comb_get_one, (a, _) -> a
| Comb_get_plus_two witness', (_, b) -> aux witness' b
in
let accu = aux witness comb in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IComb_set (_, _, witness, k) ->
let value = accu and comb, stack = stack in
let rec aux :
type value before after.
(value, before, after) comb_set_gadt_witness ->
value ->
before ->
after =
fun witness value item ->
match (witness, item) with
| Comb_set_zero, _ -> value
| Comb_set_one, (_hd, tl) -> (value, tl)
| Comb_set_plus_two witness', (hd, tl) ->
(hd, aux witness' value tl)
in
let accu = aux witness value comb in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IDup_n (_, _, witness, k) ->
let rec aux :
type a b before after.
(a, b, before, after) dup_n_gadt_witness ->
a * (b * before) ->
after =
fun witness stack ->
match (witness, stack) with
| Dup_n_zero, (a, _) -> a
| Dup_n_succ witness', (_, tl) -> aux witness' tl
in
let stack = (accu, stack) in
let accu = aux witness stack in
(step [@ocaml.tailcall]) g gas k ks accu stack
| ITicket_deprecated (_, _, k) -> (
let contents = accu and amount, stack = stack in
match Ticket_amount.of_n amount with
| Some amount ->
let ticketer = Contract.Originated sc.self in
let accu = {ticketer; contents; amount} in
(step [@ocaml.tailcall]) g gas k ks accu stack
| None -> tzfail Script_tc_errors.Forbidden_zero_ticket_quantity)
| ITicket (_, _, k) -> (
let contents = accu and amount, stack = stack in
match Ticket_amount.of_n amount with
| Some amount ->
let ticketer = Contract.Originated sc.self in
let accu = Some {ticketer; contents; amount} in
(step [@ocaml.tailcall]) g gas k ks accu stack
| None -> (step [@ocaml.tailcall]) g gas k ks None stack)
| IRead_ticket (_, _, k) ->
let {ticketer; contents; amount} = accu in
let stack = (accu, stack) in
let destination : Destination.t = Contract ticketer in
let addr = {destination; entrypoint = Entrypoint.default} in
let accu =
(addr, (contents, (amount :> Script_int.n Script_int.num)))
in
(step [@ocaml.tailcall]) g gas k ks accu stack
| ISplit_ticket (_, k) ->
let ticket = accu and (amount_a, amount_b), stack = stack in
let result =
Option.bind (Ticket_amount.of_n amount_a) @@ fun amount_a ->
Option.bind (Ticket_amount.of_n amount_b) @@ fun amount_b ->
let amount = Ticket_amount.add amount_a amount_b in
if
Compare.Int.(
Script_int.(
compare (amount :> n num) (ticket.amount :> n num))
= 0)
then
Some
( {ticket with amount = amount_a},
{ticket with amount = amount_b} )
else None
in
(step [@ocaml.tailcall]) g gas k ks result stack
| IJoin_tickets (_, contents_ty, k) ->
let ticket_a, ticket_b = accu in
let result =
if
Compare.Int.(
Contract.compare ticket_a.ticketer ticket_b.ticketer = 0
&& Script_comparable.compare_comparable
contents_ty
ticket_a.contents
ticket_b.contents
= 0)
then
Some
{
ticketer = ticket_a.ticketer;
contents = ticket_a.contents;
amount = Ticket_amount.add ticket_a.amount ticket_b.amount;
}
else None
in
(step [@ocaml.tailcall]) g gas k ks result stack
| IOpen_chest (_, k) ->
let open Timelock in
let chest_key = accu in
let chest, (time_z, stack) = stack in
let accu =
match Script_int.to_int time_z with
| None -> R false
| Some time -> (
match Script_timelock.open_chest chest chest_key ~time with
| Correct bytes -> L bytes
| Bogus_cipher -> R false
| Bogus_opening -> R true)
in
(step [@ocaml.tailcall]) g gas k ks accu stack
| IEmit {tag; ty = event_type; unparsed_ty; k; loc = _} ->
let event_data = accu in
emit_event (ctxt, sc) gas ~event_type ~unparsed_ty ~tag ~event_data
>>=? fun (accu, ctxt, gas) ->
(step [@ocaml.tailcall]) (ctxt, sc) gas k ks accu stack)
end
open Raw
let step_descr ~log_now logger (ctxt, sc) descr accu stack =
let gas, outdated_ctxt = local_gas_counter_and_outdated_context ctxt in
(match logger with
| None -> step (outdated_ctxt, sc) gas descr.kinstr KNil accu stack
| Some logger ->
(if log_now then
let loc = kinstr_location descr.kinstr in
logger.log_interp descr.kinstr ctxt loc descr.kbef (accu, stack)) ;
let log =
ILog
( kinstr_location descr.kinstr,
descr.kbef,
LogEntry,
logger,
descr.kinstr )
in
let knil = KLog (KNil, descr.kaft, logger) in
step (outdated_ctxt, sc) gas log knil accu stack)
>>=? fun (accu, stack, ctxt, gas) ->
return (accu, stack, update_context gas ctxt)
let interp logger g lam arg =
match lam with
| LamRec (code, _) ->
step_descr ~log_now:true logger g code arg (lam, (EmptyCell, EmptyCell))
>|=? fun (ret, (EmptyCell, EmptyCell), ctxt) -> (ret, ctxt)
| Lam (code, _) ->
step_descr ~log_now:true logger g code arg (EmptyCell, EmptyCell)
>|=? fun (ret, (EmptyCell, EmptyCell), ctxt) -> (ret, ctxt)
type execution_arg =
| Typed_arg :
Script.location * ('a, _) Script_typed_ir.ty * 'a
-> execution_arg
| Untyped_arg : Script.expr -> execution_arg
let lift_execution_arg (type a ac) ctxt ~internal (entrypoint_ty : (a, ac) ty)
(construct : a -> 'b) arg : ('b * context) tzresult Lwt.t =
(match arg with
| Untyped_arg arg ->
let arg = Micheline.root arg in
parse_data
ctxt
~elab_conf:Script_ir_translator_config.(make ~legacy:false ())
~allow_forged:internal
entrypoint_ty
arg
| Typed_arg (loc, parsed_arg_ty, parsed_arg) ->
Gas_monad.run
ctxt
(Script_ir_translator.ty_eq
~error_details:(Informative loc)
entrypoint_ty
parsed_arg_ty)
>>?= fun (res, ctxt) ->
res >>?= fun Eq ->
let parsed_arg : a = parsed_arg in
return (parsed_arg, ctxt))
>>=? fun (entrypoint_arg, ctxt) -> return (construct entrypoint_arg, ctxt)
type execution_result = {
script : Script_ir_translator.ex_script;
code_size : int;
storage : Script.expr;
lazy_storage_diff : Lazy_storage.diffs option;
operations : packed_internal_operation list;
ticket_diffs : Z.t Ticket_token_map.t;
ticket_receipt : Ticket_receipt.t;
}
let execute_any_arg logger ctxt mode step_constants ~entrypoint ~internal
unparsed_script cached_script arg =
let elab_conf =
Script_ir_translator_config.make
~legacy:true
~keep_extra_types_for_interpreter_logging:(Option.is_some logger)
()
in
(match cached_script with
| None ->
parse_script ctxt unparsed_script ~elab_conf ~allow_forged_in_storage:true
| Some ex_script -> return (ex_script, ctxt))
>>=? fun ( Ex_script
(Script
{
code_size;
code;
arg_type;
storage = old_storage;
storage_type;
entrypoints;
views;
}),
ctxt ) ->
Gas_monad.run
ctxt
(find_entrypoint
~error_details:(Informative ())
arg_type
entrypoints
entrypoint)
>>?= fun (r, ctxt) ->
let self_contract = Contract.Originated step_constants.self in
record_trace (Bad_contract_parameter self_contract) r
>>?= fun (Ex_ty_cstr {ty = entrypoint_ty; construct; original_type_expr = _})
->
trace
(Bad_contract_parameter self_contract)
(lift_execution_arg ctxt ~internal entrypoint_ty construct arg)
>>=? fun (arg, ctxt) ->
Script_ir_translator.collect_lazy_storage ctxt arg_type arg
>>?= fun (to_duplicate, ctxt) ->
Script_ir_translator.collect_lazy_storage ctxt storage_type old_storage
>>?= fun (to_update, ctxt) ->
trace
(Runtime_contract_error step_constants.self)
(interp logger (ctxt, step_constants) code (arg, old_storage))
>>=? fun ((ops, new_storage), ctxt) ->
Script_ir_translator.extract_lazy_storage_diff
ctxt
mode
~temporary:false
~to_duplicate
~to_update
storage_type
new_storage
>>=? fun (storage, lazy_storage_diff, ctxt) ->
trace Cannot_serialize_storage (unparse_data ctxt mode storage_type storage)
>>=? fun (unparsed_storage, ctxt) ->
let op_to_couple op = (op.piop, op.lazy_storage_diff) in
let operations, op_diffs =
ops.elements |> List.map op_to_couple |> List.split
in
let lazy_storage_diff_all =
match
List.flatten
(List.map (Option.value ~default:[]) (op_diffs @ [lazy_storage_diff]))
with
| [] -> None
| diff -> Some diff
in
let script =
Ex_script
(Script
{code_size; code; arg_type; storage; storage_type; entrypoints; views})
in
Ticket_scanner.type_has_tickets ctxt arg_type
>>?= fun (arg_type_has_tickets, ctxt) ->
Ticket_scanner.type_has_tickets ctxt storage_type
>>?= fun (storage_type_has_tickets, ctxt) ->
Ticket_accounting.ticket_diffs
ctxt
~self_contract
~arg_type_has_tickets
~storage_type_has_tickets
~arg
~old_storage
~new_storage
~lazy_storage_diff:(Option.value ~default:[] lazy_storage_diff)
>>=? fun (ticket_diffs, ticket_receipt, ctxt) ->
let size, cost = Script_ir_translator.script_size script in
Gas.consume ctxt cost >>?= fun ctxt ->
return
( {
script;
code_size = size;
storage = unparsed_storage;
lazy_storage_diff = lazy_storage_diff_all;
operations;
ticket_diffs;
ticket_receipt;
},
ctxt )
let execute_with_typed_parameter ?logger ctxt ~cached_script mode step_constants
~script ~entrypoint ~parameter_ty ~location ~parameter ~internal =
execute_any_arg
logger
ctxt
mode
step_constants
~entrypoint
~internal
script
cached_script
(Typed_arg (location, parameter_ty, parameter))
let execute ?logger ctxt ~cached_script mode step_constants ~script ~entrypoint
~parameter ~internal =
execute_any_arg
logger
ctxt
mode
step_constants
~entrypoint
~internal
script
cached_script
(Untyped_arg parameter)
module Internals = struct
let next logger g gas sty ks accu stack =
let ks =
match logger with None -> ks | Some logger -> KLog (ks, sty, logger)
in
next g gas ks accu stack
let kstep logger ctxt step_constants sty kinstr accu stack =
let kinstr =
match logger with
| None -> kinstr
| Some logger ->
ILog (kinstr_location kinstr, sty, LogEntry, logger, kinstr)
in
let gas, outdated_ctxt = local_gas_counter_and_outdated_context ctxt in
step (outdated_ctxt, step_constants) gas kinstr KNil accu stack
>>=? fun (accu, stack, ctxt, gas) ->
return (accu, stack, update_context gas ctxt)
let step (ctxt, step_constants) gas ks accu stack =
step (ctxt, step_constants) gas ks KNil accu stack
let step_descr logger ctxt step_constants descr stack =
step_descr ~log_now:false logger (ctxt, step_constants) descr stack
module Raw = Raw
end