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600 lines (581 loc) · 30.6 KB
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(**************************************************************************)
(* *)
(* Copyright (c) 2014 - 2016. *)
(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* All rights reserved. No warranty, explicit or implicit, provided. *)
(* *)
(**************************************************************************)
open Error_monad
open Environment
open Tezos_context
open Script
open Script_ir_translator
open Script_typed_ir
let dummy_code_fee = Tez.fifty_cents
let dummy_storage_fee = Tez.fifty_cents
(* ---- Run-time errors -----------------------------------------------------*)
type error += Quota_exceeded
type error += Overflow of Script.location
type error += Reject of Script.location
type error += Runtime_contract_error : Contract.t * Script.expr * _ ty * _ ty * _ ty -> error
let () =
let open Data_encoding in
register_error_kind
`Permanent
~id:"quotaExceededRuntimeError"
~title: "Quota exceeded (runtime script error)"
~description:
"A script or one of its callee took too much \
time or storage space"
empty
(function Quota_exceeded -> Some () | _ -> None)
(fun () -> Quota_exceeded) ;
register_error_kind
`Permanent
~id:"overflowRuntimeError"
~title: "Value overflow (runtime script error)"
~description:
"An integer or currency overflow happened \
during the execution of a script"
(obj1 (req "location" Script.location_encoding))
(function Overflow loc -> Some loc | _ -> None)
(fun loc -> Overflow loc) ;
register_error_kind
`Temporary
~id:"scriptRejectedRuntimeError"
~title: "Script failed (runtime script error)"
~description: "A FAIL instruction was reached"
(obj1 (req "location" Script.location_encoding))
(function Reject loc -> Some loc | _ -> None)
(fun loc -> Reject loc);
register_error_kind
`Temporary
~id:"scriptRuntimeError"
~title: "Script runtime error"
~description: "Toplevel error for all runtime script errors"
(obj5
(req "contractHandle" Contract.encoding)
(req "contractCode" Script.expr_encoding)
(req "contractParameterType" ex_ty_enc)
(req "contractReturnType" ex_ty_enc)
(req "contractStorageType" ex_ty_enc))
(function
| Runtime_contract_error (contract, expr, arg_ty, ret_ty, storage_ty) ->
Some (contract, expr, Ex_ty arg_ty, Ex_ty ret_ty, Ex_ty storage_ty)
| _ -> None)
(fun (contract, expr, Ex_ty arg_ty, Ex_ty ret_ty, Ex_ty storage_ty) ->
Runtime_contract_error (contract, expr, arg_ty, ret_ty, storage_ty));
(* ---- interpreter ---------------------------------------------------------*)
type 'tys stack =
| Item : 'ty * 'rest stack -> ('ty * 'rest) stack
| Empty : end_of_stack stack
let rec unparse_stack
: type a. a stack * a stack_ty -> Script.expr list
= function
| Empty, Empty_t -> []
| Item (v, rest), Item_t (ty, rest_ty) ->
unparse_data ty v :: unparse_stack (rest, rest_ty)
let rec interp
: type p r.
?log: (Script.location * int * Script.expr list) list ref ->
Contract.origination_nonce -> int -> Contract.t -> Contract.t -> Tez.t ->
context -> (p, r) lambda -> p ->
(r * int * context * Contract.origination_nonce) tzresult Lwt.t
= fun ?log origination qta orig source amount ctxt (Lam (code, _)) arg ->
let rec step
: type b a.
Contract.origination_nonce -> int -> context -> (b, a) descr -> b stack ->
(a stack * int * context * Contract.origination_nonce) tzresult Lwt.t =
fun origination qta ctxt ({ instr ; loc } as descr) stack ->
if Compare.Int.(qta <= 0) then
fail Quota_exceeded
else
let logged_return ?(origination = origination) (ret, qta, ctxt) =
match log with
| None -> return (ret, qta, ctxt, origination)
| Some log ->
log := (descr.loc, qta, unparse_stack (ret, descr.aft)) :: !log ;
return (ret, qta, ctxt, origination) in
match instr, stack with
(* stack ops *)
| Drop, Item (_, rest) ->
logged_return (rest, qta - 1, ctxt)
| Dup, Item (v, rest) ->
logged_return (Item (v, Item (v, rest)), qta - 1, ctxt)
| Swap, Item (vi, Item (vo, rest)) ->
logged_return (Item (vo, Item (vi, rest)), qta - 1, ctxt)
| Const v, rest ->
logged_return (Item (v, rest), qta - 1, ctxt)
(* options *)
| Cons_some, Item (v, rest) ->
logged_return (Item (Some v, rest), qta - 1, ctxt)
| Cons_none _, rest ->
logged_return (Item (None, rest), qta - 1, ctxt)
| If_none (bt, _), Item (None, rest) ->
step origination qta ctxt bt rest
| If_none (_, bf), Item (Some v, rest) ->
step origination qta ctxt bf (Item (v, rest))
(* pairs *)
| Cons_pair, Item (a, Item (b, rest)) ->
logged_return (Item ((a, b), rest), qta - 1, ctxt)
| Car, Item ((a, _), rest) ->
logged_return (Item (a, rest), qta - 1, ctxt)
| Cdr, Item ((_, b), rest) ->
logged_return (Item (b, rest), qta - 1, ctxt)
(* unions *)
| Left, Item (v, rest) ->
logged_return (Item (L v, rest), qta - 1, ctxt)
| Right, Item (v, rest) ->
logged_return (Item (R v, rest), qta - 1, ctxt)
| If_left (bt, _), Item (L v, rest) ->
step origination qta ctxt bt (Item (v, rest))
| If_left (_, bf), Item (R v, rest) ->
step origination qta ctxt bf (Item (v, rest))
(* lists *)
| Cons_list, Item (hd, Item (tl, rest)) ->
logged_return (Item (hd :: tl, rest), qta - 1, ctxt)
| Nil, rest ->
logged_return (Item ([], rest), qta - 1, ctxt)
| If_cons (_, bf), Item ([], rest) ->
step origination qta ctxt bf rest
| If_cons (bt, _), Item (hd :: tl, rest) ->
step origination qta ctxt bt (Item (hd, Item (tl, rest)))
| List_map, Item (lam, Item (l, rest)) ->
fold_left_s (fun (tail, qta, ctxt, origination) arg ->
interp ?log origination qta orig source amount ctxt lam arg
>>=? fun (ret, qta, ctxt, origination) ->
return (ret :: tail, qta, ctxt, origination))
([], qta, ctxt, origination) l >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
| List_reduce, Item (lam, Item (l, Item (init, rest))) ->
fold_left_s
(fun (partial, qta, ctxt, origination) arg ->
interp ?log origination qta orig source amount ctxt lam (arg, partial)
>>=? fun (partial, qta, ctxt, origination) ->
return (partial, qta, ctxt, origination))
(init, qta, ctxt, origination) l >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
(* sets *)
| Empty_set t, rest ->
logged_return (Item (empty_set t, rest), qta - 1, ctxt)
| Set_map t, Item (lam, Item (set, rest)) ->
let items =
List.rev (set_fold (fun e acc -> e :: acc) set []) in
fold_left_s
(fun (res, qta, ctxt, origination) arg ->
interp ?log origination qta orig source amount ctxt lam arg >>=?
fun (ret, qta, ctxt, origination) ->
return (set_update ret true res, qta, ctxt, origination))
(empty_set t, qta, ctxt, origination) items >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
| Set_reduce, Item (lam, Item (set, Item (init, rest))) ->
let items =
List.rev (set_fold (fun e acc -> e :: acc) set []) in
fold_left_s
(fun (partial, qta, ctxt, origination) arg ->
interp ?log origination qta orig source amount ctxt lam (arg, partial)
>>=? fun (partial, qta, ctxt, origination) ->
return (partial, qta, ctxt, origination))
(init, qta, ctxt, origination) items >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
| Set_mem, Item (v, Item (set, rest)) ->
logged_return (Item (set_mem v set, rest), qta - 1, ctxt)
| Set_update, Item (v, Item (presence, Item (set, rest))) ->
logged_return (Item (set_update v presence set, rest), qta - 1, ctxt)
(* maps *)
| Empty_map (t, _), rest ->
logged_return (Item (empty_map t, rest), qta - 1, ctxt)
| Map_map, Item (lam, Item (map, rest)) ->
let items =
List.rev (map_fold (fun k v acc -> (k, v) :: acc) map []) in
fold_left_s
(fun (acc, qta, ctxt, origination) (k, v) ->
interp ?log origination qta orig source amount ctxt lam (k, v)
>>=? fun (ret, qta, ctxt, origination) ->
return (map_update k (Some ret) acc, qta, ctxt, origination))
(empty_map (map_key_ty map), qta, ctxt, origination) items >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
| Map_reduce, Item (lam, Item (map, Item (init, rest))) ->
let items =
List.rev (map_fold (fun k v acc -> (k, v) :: acc) map []) in
fold_left_s
(fun (partial, qta, ctxt, origination) arg ->
interp ?log origination qta orig source amount ctxt lam (arg, partial)
>>=? fun (partial, qta, ctxt, origination) ->
return (partial, qta, ctxt, origination))
(init, qta, ctxt, origination) items >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta, ctxt)
| Map_mem, Item (v, Item (map, rest)) ->
logged_return (Item (map_mem v map, rest), qta - 1, ctxt)
| Map_get, Item (v, Item (map, rest)) ->
logged_return (Item (map_get v map, rest), qta - 1, ctxt)
| Map_update, Item (k, Item (v, Item (map, rest))) ->
logged_return (Item (map_update k v map, rest), qta - 1, ctxt)
(* timestamp operations *)
| Add_seconds_to_timestamp, Item (n, Item (t, rest)) ->
begin match Script_int.to_int64 n with
| None -> fail (Overflow loc)
| Some n ->
Lwt.return
(Period.of_seconds n >>? fun p ->
Timestamp.(t +? p) >>? fun res ->
Ok (Item (res, rest), qta - 1, ctxt)) >>=? fun res ->
logged_return res
end
| Add_timestamp_to_seconds, Item (t, Item (n, rest)) ->
begin match Script_int.to_int64 n with
| None -> fail (Overflow loc)
| Some n ->
Lwt.return
(Period.of_seconds n >>? fun p ->
Timestamp.(t +? p) >>? fun res ->
Ok (Item (res, rest), qta - 1, ctxt)) >>=? fun res ->
logged_return res
end
(* string operations *)
| Concat, Item (x, Item (y, rest)) ->
logged_return (Item (x ^ y, rest), qta - 1, ctxt)
(* currency operations *)
| Add_tez, Item (x, Item (y, rest)) ->
Lwt.return Tez.(x +? y) >>=? fun res ->
logged_return (Item (res, rest), qta - 1, ctxt)
| Sub_tez, Item (x, Item (y, rest)) ->
Lwt.return Tez.(x -? y) >>=? fun res ->
logged_return (Item (res, rest), qta - 1, ctxt)
| Mul_teznat, Item (x, Item (y, rest)) ->
begin
match Script_int.to_int64 y with
| None -> fail (Overflow loc)
| Some y ->
Lwt.return Tez.(x *? y) >>=? fun res ->
logged_return (Item (res, rest), qta - 1, ctxt)
end
| Mul_nattez, Item (y, Item (x, rest)) ->
begin
match Script_int.to_int64 y with
| None -> fail (Overflow loc)
| Some y ->
Lwt.return Tez.(x *? y) >>=? fun res ->
logged_return (Item (res, rest), qta - 1, ctxt)
end
(* boolean operations *)
| Or, Item (x, Item (y, rest)) ->
logged_return (Item (x || y, rest), qta - 1, ctxt)
| And, Item (x, Item (y, rest)) ->
logged_return (Item (x && y, rest), qta - 1, ctxt)
| Xor, Item (x, Item (y, rest)) ->
logged_return (Item (not x && y || x && not y, rest), qta - 1, ctxt)
| Not, Item (x, rest) ->
logged_return (Item (not x, rest), qta - 1, ctxt)
(* integer operations *)
| Abs_int, Item (x, rest) ->
logged_return (Item (Script_int.abs x, rest), qta - 1, ctxt)
| Int_nat, Item (x, rest) ->
logged_return (Item (Script_int.int x, rest), qta - 1, ctxt)
| Neg_int, Item (x, rest) ->
logged_return (Item (Script_int.neg x, rest), qta - 1, ctxt)
| Neg_nat, Item (x, rest) ->
logged_return (Item (Script_int.neg x, rest), qta - 1, ctxt)
| Add_intint, Item (x, Item (y, rest)) ->
let res = Script_int.add x y in
let _ = prerr_endline (Z.to_string res) in
logged_return (Item (Script_int.add x y, rest), qta - 1, ctxt)
| Add_intnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.add x y, rest), qta - 1, ctxt)
| Add_natint, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.add x y, rest), qta - 1, ctxt)
| Add_natnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.add_n x y, rest), qta - 1, ctxt)
| Sub_int, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.sub x y, rest), qta - 1, ctxt)
| Mul_intint, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.mul x y, rest), qta - 1, ctxt)
| Mul_intnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.mul x y, rest), qta - 1, ctxt)
| Mul_natint, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.mul x y, rest), qta - 1, ctxt)
| Mul_natnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.mul_n x y, rest), qta - 1, ctxt)
| Ediv_teznat, Item (x, Item (y, rest)) ->
let x = Script_int.of_int64 (Tez.to_cents 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 ->
begin
match Tez.of_cents q, Tez.of_cents r with
| Some q, Some r -> Some (q,r)
(* Cannot overflow *)
| _ -> assert false
end
(* Cannot overflow *)
| _ -> assert false
in
logged_return (Item (result, rest), qta -1, ctxt)
| Ediv_tez, Item (x, Item (y, rest)) ->
let x = Script_int.abs (Script_int.of_int64 (Tez.to_cents x)) in
let y = Script_int.abs (Script_int.of_int64 (Tez.to_cents y)) in
begin match Script_int.ediv_n x y with
| None ->
logged_return (Item (None, rest), qta -1, ctxt)
| Some (q, r) ->
let r =
match Script_int.to_int64 r with
| None -> assert false (* Cannot overflow *)
| Some r ->
match Tez.of_cents r with
| None -> assert false (* Cannot overflow *)
| Some r -> r in
logged_return (Item (Some (q, r), rest), qta -1, ctxt)
end
| Ediv_intint, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.ediv x y, rest), qta -1, ctxt)
| Ediv_intnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.ediv x y, rest), qta -1, ctxt)
| Ediv_natint, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.ediv x y, rest), qta -1, ctxt)
| Ediv_natnat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.ediv_n x y, rest), qta -1, ctxt)
| Lsl_nat, Item (x, Item (y, rest)) ->
begin match Script_int.shift_left_n x y with
| None -> fail (Overflow loc)
| Some r -> logged_return (Item (r, rest), qta - 1, ctxt)
end
| Lsr_nat, Item (x, Item (y, rest)) ->
begin match Script_int.shift_right_n x y with
| None -> fail (Overflow loc)
| Some r -> logged_return (Item (r, rest), qta - 1, ctxt)
end
| Or_nat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.logor x y, rest), qta - 1, ctxt)
| And_nat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.logand x y, rest), qta - 1, ctxt)
| Xor_nat, Item (x, Item (y, rest)) ->
logged_return (Item (Script_int.logxor x y, rest), qta - 1, ctxt)
| Not_int, Item (x, rest) ->
logged_return (Item (Script_int.lognot x, rest), qta - 1, ctxt)
| Not_nat, Item (x, rest) ->
logged_return (Item (Script_int.lognot x, rest), qta - 1, ctxt)
(* control *)
| Seq (hd, tl), stack ->
step origination qta ctxt hd stack >>=? fun (trans, qta, ctxt, origination) ->
step origination qta ctxt tl trans
| If (bt, _), Item (true, rest) ->
step origination qta ctxt bt rest
| If (_, bf), Item (false, rest) ->
step origination qta ctxt bf rest
| Loop body, Item (true, rest) ->
step origination qta ctxt body rest >>=? fun (trans, qta, ctxt, origination) ->
step origination (qta - 1) ctxt descr trans
| Loop _, Item (false, rest) ->
logged_return (rest, qta, ctxt)
| Dip b, Item (ign, rest) ->
step origination qta ctxt b rest >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (ign, res), qta, ctxt)
| Exec, Item (arg, Item (lam, rest)) ->
interp ?log origination qta orig source amount ctxt lam arg >>=? fun (res, qta, ctxt, origination) ->
logged_return ~origination (Item (res, rest), qta - 1, ctxt)
| Lambda lam, rest ->
logged_return ~origination (Item (lam, rest), qta - 1, ctxt)
| Fail, _ ->
fail (Reject loc)
| Nop, stack ->
logged_return (stack, qta, ctxt)
(* comparison *)
| Compare Bool_key, Item (a, Item (b, rest)) ->
let cmpres = Compare.Bool.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare String_key, Item (a, Item (b, rest)) ->
let cmpres = Compare.String.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare Tez_key, Item (a, Item (b, rest)) ->
let cmpres = Tez.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare Int_key, Item (a, Item (b, rest)) ->
let cmpres = Script_int.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare Nat_key, Item (a, Item (b, rest)) ->
let cmpres = Script_int.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare Key_key, Item (a, Item (b, rest)) ->
let cmpres = Ed25519.Public_key_hash.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Compare Timestamp_key, Item (a, Item (b, rest)) ->
let cmpres = Timestamp.compare a b in
let cmpres = Script_int.of_int cmpres in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
(* comparators *)
| Eq, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres = 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Neq, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres <> 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Lt, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres < 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Le, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres <= 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Gt, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres > 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
| Ge, Item (cmpres, rest) ->
let cmpres = Script_int.compare cmpres Script_int.zero in
let cmpres = Compare.Int.(cmpres >= 0) in
logged_return (Item (cmpres, rest), qta - 1, ctxt)
(* protocol *)
| Manager, Item ((_, _, contract), rest) ->
Contract.get_manager ctxt contract >>=? fun manager ->
logged_return (Item (manager, rest), qta - 1, ctxt)
| Transfer_tokens storage_type,
Item (p, Item (amount, Item ((tp, Unit_t, destination), Item (sto, Empty)))) -> begin
Contract.spend_from_script ctxt source amount >>=? fun ctxt ->
Contract.credit ctxt destination amount >>=? fun ctxt ->
Contract.get_script ctxt destination >>=? fun destination_script ->
let sto = unparse_data storage_type sto in
Contract.update_script_storage_and_fees ctxt source dummy_storage_fee sto >>=? fun ctxt ->
begin match destination_script with
| None ->
(* we see non scripted contracts as (unit, unit) contract *)
Lwt.return (ty_eq tp Unit_t |>
record_trace (Invalid_contract (loc, destination))) >>=? fun (Eq _) ->
return (ctxt, qta, origination)
| Some { code ; storage } ->
let p = unparse_data tp p in
execute origination source destination ctxt storage code amount p qta
>>=? fun (csto, ret, qta, ctxt, origination) ->
Contract.update_script_storage_and_fees ctxt destination dummy_storage_fee csto >>=? fun ctxt ->
trace
(Invalid_contract (loc, destination))
(parse_data ctxt Unit_t ret) >>=? fun () ->
return (ctxt, qta, origination)
end >>=? fun (ctxt, qta, origination) ->
Contract.get_script ctxt source >>=? (function
| None -> assert false
| Some { storage = { storage } } ->
parse_data ctxt storage_type storage >>=? fun sto ->
logged_return ~origination (Item ((), Item (sto, Empty)), qta - 1, ctxt))
end
| Transfer_tokens storage_type,
Item (p, Item (amount, Item ((tp, tr, destination), Item (sto, Empty)))) -> begin
Contract.spend_from_script ctxt source amount >>=? fun ctxt ->
Contract.credit ctxt destination amount >>=? fun ctxt ->
Contract.get_script ctxt destination >>=? function
| None -> fail (Invalid_contract (loc, destination))
| Some { code ; storage } ->
let sto = unparse_data storage_type sto in
Contract.update_script_storage_and_fees ctxt source dummy_storage_fee sto >>=? fun ctxt ->
let p = unparse_data tp p in
execute origination source destination ctxt storage code amount p qta
>>=? fun (sto, ret, qta, ctxt, origination) ->
Contract.update_script_storage_and_fees ctxt destination dummy_storage_fee sto >>=? fun ctxt ->
trace
(Invalid_contract (loc, destination))
(parse_data ctxt tr ret) >>=? fun v ->
Contract.get_script ctxt source >>=? (function
| None -> assert false
| Some { storage = { storage } } ->
parse_data ctxt storage_type storage >>=? fun sto ->
logged_return ~origination (Item (v, Item (sto, Empty)), qta - 1, ctxt))
end
| Create_account,
Item (manager, Item (delegate, Item (delegatable, Item (credit, rest)))) ->
Contract.spend_from_script ctxt source credit >>=? fun ctxt ->
Lwt.return Tez.(credit -? Constants.origination_burn) >>=? fun balance ->
Contract.originate ctxt
origination
~manager ~delegate ~balance
?script:None ~spendable:true ~delegatable >>=? fun (ctxt, contract, origination) ->
logged_return ~origination (Item ((Unit_t, Unit_t, contract), rest), qta - 1, ctxt)
| Default_account, Item (key, rest) ->
let contract = Contract.default_contract key in
logged_return (Item ((Unit_t, Unit_t, contract), rest), qta - 1, ctxt)
| Create_contract (g, p, r),
Item (manager, Item (delegate, Item (spendable, Item (delegatable, Item (credit,
Item (Lam (_, code), Item (init, rest))))))) ->
let code, storage =
{ code; arg_type = unparse_ty p; ret_type = unparse_ty r; storage_type = unparse_ty g },
{ storage = unparse_data g init; storage_type = unparse_ty g } in
Contract.spend_from_script ctxt source credit >>=? fun ctxt ->
Lwt.return Tez.(credit -? Constants.origination_burn) >>=? fun balance ->
Contract.originate ctxt
origination
~manager ~delegate ~balance
~script:({ code ; storage }, (dummy_code_fee, dummy_storage_fee))
~spendable ~delegatable
>>=? fun (ctxt, contract, origination) ->
logged_return ~origination (Item ((p, r, contract), rest), qta - 1, ctxt)
| Balance, rest ->
Contract.get_balance ctxt source >>=? fun balance ->
logged_return (Item (balance, rest), qta - 1, ctxt)
| Now, rest ->
let now = Timestamp.current ctxt in
logged_return (Item (now, rest), qta - 1, ctxt)
| Check_signature, Item (key, Item ((signature, message), rest)) ->
Public_key.get ctxt key >>=? fun key ->
let message = MBytes.of_string message in
let res = Ed25519.Signature.check key signature message in
logged_return (Item (res, rest), qta - 1, ctxt)
| H ty, Item (v, rest) ->
let hash = Script.hash_expr (unparse_data ty v) in
logged_return (Item (hash, rest), qta - 1, ctxt)
| Steps_to_quota, rest ->
let steps = Script_int.abs (Script_int.of_int qta) in
logged_return (Item (steps, rest), qta - 1, ctxt)
| Source (ta, tb), rest ->
logged_return (Item ((ta, tb, orig), rest), qta - 1, ctxt)
| Amount, rest ->
logged_return (Item (amount, rest), qta - 1, ctxt)
in
let stack = (Item (arg, Empty)) in
begin match log with
| None -> ()
| Some log ->
log := (code.loc, qta, unparse_stack (stack, code.bef)) :: !log
end ;
step origination qta ctxt code stack >>=? fun (Item (ret, Empty), qta, ctxt, origination) ->
return (ret, qta, ctxt, origination)
(* ---- contract handling ---------------------------------------------------*)
and execute ?log origination orig source ctxt storage script amount arg qta =
let { Script.storage ; storage_type } = storage in
let { Script.code ; arg_type ; ret_type } = script in
(Lwt.return (parse_ty arg_type)) >>=? fun (Ex_ty arg_type) ->
(Lwt.return (parse_ty ret_type)) >>=? fun (Ex_ty ret_type) ->
(Lwt.return (parse_ty storage_type)) >>=? fun (Ex_ty storage_type) ->
let arg_type_full = Pair_t (arg_type, storage_type) in
let ret_type_full = Pair_t (ret_type, storage_type) in
trace
(Ill_typed_contract (code, arg_type, ret_type, storage_type, []))
(parse_lambda ~storage_type ctxt arg_type_full ret_type_full code) >>=? fun lambda ->
parse_data ctxt arg_type arg >>=? fun arg ->
parse_data ctxt storage_type storage >>=? fun storage ->
trace
(Runtime_contract_error (source, code, arg_type, ret_type, storage_type))
(interp ?log origination qta orig source amount ctxt lambda (arg, storage))
>>=? fun (ret, qta, ctxt, origination) ->
let ret, storage = ret in
return (unparse_data storage_type storage,
unparse_data ret_type ret,
qta, ctxt, origination)
let trace origination orig source ctxt storage script amount arg qta =
let log = ref [] in
execute ~log origination orig source ctxt storage script amount arg qta >>=? fun res ->
return (res, List.rev !log)
let execute orig source ctxt storage script amount arg qta =
execute orig source ctxt storage script amount arg qta