Staking

sources/constants.tact

@@ -1,6 +1,7 @@
 
 const gas_consumption: Int = ton("0.01");
-const withdraw_gas_consumption: Int = ton("0.01");
+const withdraw_gas_consumption: Int = ton("0.1");
 const deposit_gas_consumption: Int = ton("0.01");  // Gas consumption during processing
 const linker_credit: Int = ton("0.02");  // TON to send to the linker for the fees
 const wallet_credit: Int = ton("0.05");  // TON to send to the wallet for the fees
+const tonb_floor: Int = ton("0.1");  // Minimum amount of TON to keep on TONB

sources/jetton.tact

@@ -39,6 +39,7 @@ contract TONB with TONBTrait {
         let ctx: Context = context();
         require(ctx.value >= deposit_gas_consumption + msg.amount + linker_credit + wallet_credit, "not enough money for deposit");
         self.mint(ctx.sender, msg.amount, ctx.sender);
+        self.sendStake();
     }
 
     receive() {}

sources/jetton_trait.tact

@@ -3,10 +3,11 @@ import "@stdlib/ownable";
 import "./wallet";
 import "./linker";
 import "./constants";
+import "./staking";
 
 
 @interface("org.ton.jetton.master")
-trait TONBTrait with Ownable {
+trait TONBTrait with Ownable, StakingTrait {
 
     //
     // Storage
@@ -19,6 +20,8 @@ trait TONBTrait with Ownable {
     first_linker: Address?;
     last_linker: Address?;
     n_linkers: Int = 0;
+    staking_pool: Address?;
+    withdrawal_requests: WithdrawalRequests;
 
 
     //
@@ -41,7 +44,36 @@ trait TONBTrait with Ownable {
 
         // Update supply
         self.totalSupply = self.totalSupply - msg.amount;
-        /* todo: if not enough tokens, withdraw what we have, send some tokens to the owner, add a withdrawal request */
+        let available: Int = myBalance() - tonb_floor - withdraw_gas_consumption;
+        if (available < msg.amount) {
+            /* if not enough tokens, withdraw what we have, send some tokens to the owner, add a withdrawal request (-withdrawal_gas) */
+            let diff: Int = msg.amount - available;
+            send(SendParameters{
+                to: msg.owner, 
+                value: myBalance() - tonb_floor,
+                bounce: false
+            });
+            let body: Cell = TokenTransferInternal{ 
+                amount: diff,
+                queryId: 0,
+                from: myAddress(),
+                responseAddress: myAddress(),
+                forwardTonAmount: 0,
+                forwardPayload: emptySlice(),
+                setLinker: null,
+                setLinkerAddress: null
+            }.toCell();
+            let walletAddress: Address = self.get_wallet_address(msg.owner);
+            send(SendParameters{
+                to: walletAddress, 
+                value: 0, 
+                bounce: false,
+                mode: SendRemainingValue,
+                body: body
+            });
+            self.requestWithdrawal(msg.owner, diff);
+            return;
+        }
 
         // Withdraw
         send(SendParameters{

sources/output/jetton_TONB.code.fc

@@ -1,3 +1,9 @@
+slice __tact_str_to_slice(slice s) asm "NOP";
+
+int __tact_my_balance() inline {
+    return pair_first(get_balance());
+}
+
 forall X -> X __tact_not_null(X x) { throw_if(128, null?(x)); return x; }
 
 global (int, slice, int, slice) __tact_context;
@@ -65,6 +71,42 @@ slice __tact_compute_contract_address(int chain, cell code, cell data) inline {
     return __tact_create_address(chain, hash);
 }
 
+(cell, ()) __tact_dict_set_int_int(cell d, int kl, int k, int v, int vl) inline {
+    if (null?(v)) {
+        var (r, ok) = idict_delete?(d, kl, k);
+        return (r, ());
+    } else {
+        return (idict_set_builder(d, kl, k, begin_cell().store_int(v, vl)), ());
+    }
+}
+
+int __tact_dict_get_int_int(cell d, int kl, int k, int vl) inline {
+    var (r, ok) = idict_get?(d, kl, k);
+    if (ok) {
+        return r~load_int(vl);
+    } else {
+        return null();
+    }
+}
+
+(cell, ()) __tact_dict_set_int_slice(cell d, int kl, int k, slice v) inline {
+    if (null?(v)) {
+        var (r, ok) = idict_delete?(d, kl, k);
+        return (r, ());
+    } else {
+        return (idict_set(d, kl, k, v), ());
+    }
+}
+
+slice __tact_dict_get_int_slice(cell d, int kl, int k) inline {
+    var (r, ok) = idict_get?(d, kl, k);
+    if (ok) {
+        return r;
+    } else {
+        return null();
+    }
+}
+
 int __tact_address_eq(slice a, slice b) inline {
     return equal_slice_bits(a, b);
 }
@@ -248,6 +290,9 @@ _ __gen_Context_get_sender((int, slice, int, slice) v) inline {
     set_data(b.end_cell());
 }
 
+;; String "Deposit"
+slice __gen_str_228592480() asm "B{b5ee9c7241010101000900000e4465706f7369749721d513} B>boc <s PUSHSLICE";
+
 cell $emptyCell() impure {
     return end_cell(begin_cell());
 }
@@ -309,6 +354,10 @@ slice $contractAddress((cell, cell) $s) impure {
     send_raw_message($c, $params'mode);
 }
 
+(int, slice, int, int, cell, cell, cell) $stakingDepositMessage(int $value, slice $pool) impure {
+    return (true, $pool, $value, 0, end_cell(store_slice(begin_cell(), __tact_str_to_slice(__gen_str_228592480()))), null(), null());
+}
+
 cell $__gen_TONBWallet_init(cell sys', slice $master, slice $owner) {
     var (($self'balance, $self'owner, $self'master, $self'blacklisted, $self'linker, $self'linker_address)) = (null(), null(), null(), false, null(), null());
     $self'balance = 0;
@@ -433,12 +482,34 @@ _ $__gen_get_owner() method_id(83229) {
     return res;
 }
 
+((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)), ()) $__gen_TONB_sendStake((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)) $self) impure {
+    var (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))) = $self;
+    if (null?($self'staking_pool)) {
+        return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+    }
+    int $value = (__tact_my_balance() - 100000000);
+    if (($value < 50000000)) {
+        return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+    }
+    $send($stakingDepositMessage($value, __tact_not_null($self'staking_pool)));
+    return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+}
+
+((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)), ()) $__gen_TONB_requestWithdrawal((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)) $self, slice $address, int $value) impure {
+    var (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))) = $self;
+    $self'withdrawal_requests'addresses~__tact_dict_set_int_slice(257, $self'withdrawal_requests'n_requests, $address);
+    $self'withdrawal_requests'amounts~__tact_dict_set_int_int(257, $self'withdrawal_requests'n_requests, $value, 257);
+    $self'withdrawal_requests'n_requests = ($self'withdrawal_requests'n_requests + 1);
+    return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+}
+
 (((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int))), ()) $__gen_TONB_receive_Deposit((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)) $self, (int) $msg) impure {
     var ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)) = $self;
     var ($msg'amount) = $msg;
     var ($ctx'bounced, $ctx'sender, $ctx'value, $ctx'raw) = __tact_context_get();
     throw_unless(32366, ($ctx'value >= (((10000000 + $msg'amount) + 20000000) + 50000000)));
     ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))~$__gen_TONB_mint($ctx'sender, $msg'amount, $ctx'sender);
+    ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))~$__gen_TONB_sendStake();
     return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
 }
 
@@ -451,7 +522,7 @@ _ $__gen_get_owner() method_id(83229) {
     var ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)) = $self;
     var ($msg'amount) = $msg;
     var ($ctx'bounced, $ctx'sender, $ctx'value, $ctx'raw) = __tact_context_get();
-    throw_unless(6384, ($ctx'value >= 10000000));
+    throw_unless(6384, ($ctx'value >= 100000000));
     ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))~$__gen_TONB_burn($ctx'sender, $msg'amount, $ctx'sender);
     return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
 }
@@ -469,10 +540,30 @@ _ $__gen_get_owner() method_id(83229) {
     var ($msg'queryId, $msg'amount, $msg'owner, $msg'responseAddress) = $msg;
     ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))~$__gen_TONB_requireWallet($msg'owner);
     $self'totalSupply = ($self'totalSupply - $msg'amount);
+    int $available = ((__tact_my_balance() - 100000000) - 100000000);
+    if (($available < $msg'amount)) {
+        int $diff = ($msg'amount - $available);
+        $send((false, $msg'owner, (__tact_my_balance() - 100000000), 0, null(), null(), null()));
+        cell $body = __gen_writecell_TokenTransferInternal((0, $diff, my_address(), my_address(), 0, $emptySlice(), null(), null()));
+        slice $walletAddress = $__gen_TONB_get_wallet_address(($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), $msg'owner);
+        $send((false, $walletAddress, 0, 64, $body, null(), null()));
+        ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests))~$__gen_TONB_requestWithdrawal($msg'owner, $diff);
+        return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+    }
     $send((false, $msg'owner, $msg'amount, 0, null(), null(), null()));
     return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
 }
 
+((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)), ()) $__gen_TONB_receive_comment_f7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c((int, slice, cell, int, slice, slice, int, slice, (cell, cell, int)) $self) impure {
+    var ($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)) = $self;
+    int $i = 0;
+    while (($i < $self'withdrawal_requests'n_requests)) {
+        $send((true, __tact_not_null(__tact_dict_get_int_slice($self'withdrawal_requests'addresses, 257, $i)), __tact_not_null(__tact_dict_get_int_int($self'withdrawal_requests'amounts, 257, $i, 257)), 0, null(), null(), null()));
+        $i = ($i + 1);
+    }
+    return (($self'totalSupply, $self'owner, $self'content, $self'mintable, $self'first_linker, $self'last_linker, $self'n_linkers, $self'staking_pool, ($self'withdrawal_requests'addresses, $self'withdrawal_requests'amounts, $self'withdrawal_requests'n_requests)), ());
+}
+
 
 () recv_internal(int msg_value, cell in_msg_cell, slice in_msg) impure {
     
@@ -536,6 +627,19 @@ _ $__gen_get_owner() method_id(83229) {
         return ();
     }
     
+    ;; Text Receivers
+    if (op == 0) {
+        var text_op = slice_hash(in_msg);
+        
+        ;; Receive "Withdraw completed" message
+        if (text_op == 0xf7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c) {
+            var self = __gen_load_TONB();
+            self~$__gen_TONB_receive_comment_f7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c();
+            __gen_store_TONB(self);
+            return ();
+        }
+    }
+    
     throw(130);
 }
 
@@ -549,5 +653,5 @@ _ supported_interfaces() method_id {
 }
 
 _ get_abi_ipfs() {
-    return "ipfs://QmYVigftHMYXo1zGVnMx2hxo4jEsJqWmjJJq9AaWYe9gfp";
+    return "ipfs://QmUMBKY4L4n4GyTq3MSncGQ8X3nLYqomdtcYYcg1dzU2iS";
 }

sources/output/jetton_TONB.code.fif

@@ -1,4 +1,5 @@
 PROGRAM{
+  DECLPROC __tact_my_balance
   DECLPROC __tact_not_null
   DECLPROC __tact_context_get
   DECLPROC __tact_verify_address
@@ -9,6 +10,10 @@ PROGRAM{
   DECLPROC __tact_store_address_opt
   DECLPROC __tact_create_address
   DECLPROC __tact_compute_contract_address
+  DECLPROC __tact_dict_set_int_int
+  DECLPROC __tact_dict_get_int_int
+  DECLPROC __tact_dict_set_int_slice
+  DECLPROC __tact_dict_get_int_slice
   DECLPROC __tact_address_eq
   DECLPROC __tact_dict_set_code
   DECLPROC __tact_dict_get_code
@@ -38,6 +43,7 @@ PROGRAM{
   DECLPROC $emptySlice
   DECLPROC $contractAddress
   DECLPROC $send
+  DECLPROC $stakingDepositMessage
   DECLPROC $__gen_TONBWallet_init
   DECLPROC $__gen_TONBWallet_init_child
   DECLPROC $__gen_Linker_init
@@ -53,16 +59,23 @@ PROGRAM{
   DECLPROC $__gen_TONB_requireOwner
   DECLPROC $__gen_TONB_owner
   83229 DECLMETHOD $__gen_get_owner
+  DECLPROC $__gen_TONB_sendStake
+  DECLPROC $__gen_TONB_requestWithdrawal
   DECLPROC $__gen_TONB_receive_Deposit
   DECLPROC $__gen_TONB_receive
   DECLPROC $__gen_TONB_receive_Withdraw
   DECLPROC $__gen_TONB_receive_TokenUpdateContent
   DECLPROC $__gen_TONB_receive_TokenBurnNotification
+  DECLPROC $__gen_TONB_receive_comment_f7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c
   DECLPROC recv_internal
   113617 DECLMETHOD supported_interfaces
   DECLPROC get_abi_ipfs
   DECLGLOBVAR __tact_context
   DECLGLOBVAR __tact_context_sys
+  __tact_my_balance PROCINLINE:<{
+    BALANCE
+    FIRST
+  }>
   __tact_not_null PROC:<{
     DUP
     ISNULL
@@ -145,6 +158,58 @@ PROGRAM{
     HASHCU
     __tact_create_address INLINECALLDICT
   }>
+  __tact_dict_set_int_int PROCINLINE:<{
+    OVER
+    ISNULL
+    IF:<{
+      2DROP
+      -ROT
+      DICTIDEL
+      DROP
+    }>ELSE<{
+      NEWC
+      SWAP
+      STIX
+      s1 s3 s3 XCHG3
+      DICTISETB
+    }>
+  }>
+  __tact_dict_get_int_int PROCINLINE:<{
+    s1 s3 s3 XCHG3
+    DICTIGET
+    NULLSWAPIFNOT
+    IF:<{
+      SWAP
+      LDIX
+      DROP
+    }>ELSE<{
+      2DROP
+      PUSHNULL
+    }>
+  }>
+  __tact_dict_set_int_slice PROCINLINE:<{
+    DUP
+    ISNULL
+    IF:<{
+      DROP
+      -ROT
+      DICTIDEL
+      DROP
+    }>ELSE<{
+      s1 s3 s3 XCHG3
+      DICTISET
+    }>
+  }>
+  __tact_dict_get_int_slice PROCINLINE:<{
+    -ROT
+    DICTIGET
+    NULLSWAPIFNOT
+    IF:<{
+    }>ELSE<{
+      DROP
+      PUSHNULL
+    }>
+  }>
   __tact_address_eq PROCINLINE:<{
     SDEQ
   }>
@@ -562,6 +627,17 @@ PROGRAM{
     SWAP
     SENDRAWMSG
   }>
+  $stakingDepositMessage PROC:<{
+    TRUE
+    0 PUSHINT
+    NEWC
+    B{b5ee9c7241010101000900000e4465706f7369749721d513} B>boc <s PUSHSLICE
+    STSLICER
+    ENDC
+    s2 s4 XCHG
+    PUSHNULL
+    PUSHNULL
+  }>
   $__gen_TONBWallet_init PROC:<{
     FALSE
     PUSHNULL
@@ -771,6 +847,39 @@ PROGRAM{
     __gen_load_TONB INLINECALLDICT
     $__gen_TONB_owner CALLDICT
   }>
+  $__gen_TONB_sendStake PROC:<{
+    s3 PUSH
+    ISNULL
+    IFJMP:<{
+    }>
+    __tact_my_balance INLINECALLDICT
+    100000000 PUSHINT
+    SUB
+    DUP
+    50000000 PUSHINT
+    LESS
+    IFJMP:<{
+      DROP
+    }>
+    s4 PUSH
+    __tact_not_null CALLDICT
+    $stakingDepositMessage CALLDICT
+    $send CALLDICT
+  }>
+  $__gen_TONB_requestWithdrawal PROC:<{
+    s1 s4 XCHG
+    257 PUSHINT
+    s0 s3 s5 XCPUXC
+    __tact_dict_set_int_slice INLINECALLDICT
+    257 PUSHINT
+    DUP
+    s3 s4 XCHG
+    s4 s0 s2 PUXC2
+    s6 s6 XCHG2
+    __tact_dict_set_int_int INLINECALLDICT
+    SWAP
+    INC
+  }>
   $__gen_TONB_receive_Deposit PROC:<{
     __tact_context_get INLINECALLDICT
     DROP
@@ -789,6 +898,7 @@ PROGRAM{
     THROWANYIFNOT
     TUCK
     $__gen_TONB_mint CALLDICT
+    $__gen_TONB_sendStake CALLDICT
   }>
   $__gen_TONB_receive PROC:<{
   }>
@@ -797,7 +907,7 @@ PROGRAM{
     DROP
     6384 PUSHINT
     s3 POP
-    10000000 PUSHINT
+    100000000 PUSHINT
     GEQ
     s1 s2 XCHG
     THROWANYIFNOT
@@ -827,6 +937,62 @@ PROGRAM{
     $__gen_TONB_requireWallet CALLDICT
     s10 s12 XCPU
     SUB
+    __tact_my_balance INLINECALLDICT
+    100000000 PUSHINT
+    SUB
+    100000000 PUSHINT
+    SUB
+    s0 s13 PUSH2
+    LESS
+    IFJMP:<{
+      s1 s13 XCHG
+      SUB
+      FALSE
+      __tact_my_balance INLINECALLDICT
+      100000000 PUSHINT
+      SUB
+      s13 s(-1) PUXC
+      0 PUSHINT
+      PUSHNULL
+      PUSHNULL
+      PUSHNULL
+      $send CALLDICT
+      0 PUSHINT
+      MYADDR
+      MYADDR
+      s2 PUSH
+      $emptySlice CALLDICT
+      s5 PUSH
+      4 -ROLL
+      PUSHNULL
+      PUSHNULL
+      __gen_writecell_TokenTransferInternal INLINECALLDICT
+      s13 s10 s9 PUSH3
+      s11 s10 s9 PUSH3
+      s11 s10 s9 PUSH3
+      s11 PUSH
+      21 s() PUSH
+      23 s() PUSH
+      $__gen_TONB_get_wallet_address CALLDICT
+      FALSE
+      s0 s2 XCHG
+      0 PUSHINT
+      64 PUSHINT
+      ROT
+      PUSHNULL
+      PUSHNULL
+      $send CALLDICT
+      s9 s11 XCHG
+      s8 s10 XCHG
+      s7 s9 XCHG
+      s6 s8 XCHG
+      s5 s7 XCHG
+      s4 s6 XCHG
+      s3 s5 XCHG
+      s4 s3 s0 XCHG3
+      $__gen_TONB_requestWithdrawal CALLDICT
+    }>
+    DROP
     FALSE
     s0 s12 s13 XCHG3
     0 PUSHINT
@@ -837,7 +1003,35 @@ PROGRAM{
     s9 s10 XCHG
     2 8 BLKSWAP
   }>
+  $__gen_TONB_receive_comment_f7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c PROC:<{
+    0 PUSHINT
+    WHILE:<{
+      s0 s1 PUSH2
+      LESS
+    }>DO<{
+      TRUE
+      s4 PUSH
+      257 PUSHINT
+      s3 PUSH
+      __tact_dict_get_int_slice INLINECALLDICT
+      __tact_not_null CALLDICT
+      257 PUSHINT
+      s5 s(-1) s(-1) PUXCPU
+      s5 s(-1) PUXC
+      __tact_dict_get_int_int INLINECALLDICT
+      __tact_not_null CALLDICT
+      0 PUSHINT
+      PUSHNULL
+      PUSHNULL
+      PUSHNULL
+      $send CALLDICT
+      INC
+    }>
+    DROP
+  }>
   recv_internal PROC:<{
+    c2 SAVE
+    SAMEALTSAVE
     0 PUSHINT
     OVER
     SBITS
@@ -944,9 +1138,11 @@ PROGRAM{
       $__gen_TONB_receive_TokenUpdateContent CALLDICT
       __gen_store_TONB INLINECALLDICT
     }>
+    DUP
     2078119902 PUSHINT
     EQUAL
     IFJMP:<{
+      DROP
       __gen_load_TONB INLINECALLDICT
       s0 s11 XCHG
       __gen_read_TokenBurnNotification INLINECALLDICT
@@ -965,7 +1161,20 @@ PROGRAM{
       $__gen_TONB_receive_TokenBurnNotification CALLDICT
       __gen_store_TONB INLINECALLDICT
     }>
-    DROP
+    0 EQINT
+    IF:<{
+      HASHSU
+      112035188329905946142547757571014323481817249017271886940372980664113557830988 PUSHINT
+      EQUAL
+      IFJMP:<{
+        __gen_load_TONB INLINECALLDICT
+        $__gen_TONB_receive_comment_f7b1ab6077945b37370a1550574675180cf87df4cb047c869746812a83667d4c CALLDICT
+        __gen_store_TONB INLINECALLDICT
+        RETALT
+      }>
+    }>ELSE<{
+      DROP
+    }>
     130 THROW
   }>
   supported_interfaces PROC:<{
@@ -975,6 +1184,6 @@ PROGRAM{
     86142586315491086060343270784266291122 PUSHINT
   }>
   get_abi_ipfs PROC:<{
-    x{697066733a2f2f516d595669676674484d59586f317a47566e4d783268786f346a45734a71576d6a4a4a7139416157596539676670} PUSHSLICE
+    x{697066733a2f2f516d554d424b59344c346e3447795471334d536e6347513858336e4c59716f6d6474635959636731647a55326953} PUSHSLICE
   }>
 }END>c

sources/output/jetton_TONB.code.rev.fif

@@ -1,6 +1,8 @@
 SETCP0
 (:methods
   recv_internal: 
+    c2 SAVE
+    SAMEALTSAVE
     0 PUSHINT
     s1 PUSH
     SBITS
@@ -145,7 +147,7 @@ SETCP0
       s4 s5 XCHG
       s3 s4 XCHG
       s1 s3 s0 XCHG3
-      52 CALLDICT
+      60 CALLDICT
       <{
         NEWC
         2 GETGLOBVAR
@@ -328,7 +330,7 @@ SETCP0
         }> CALLREF
         1 11 BLKDROP2
       }> CALLREF
-      53 CALLDICT
+      61 CALLDICT
       <{
         NEWC
         2 GETGLOBVAR
@@ -529,7 +531,7 @@ SETCP0
       s4 s5 XCHG
       s3 s4 XCHG
       s1 s3 s0 XCHG3
-      54 CALLDICT
+      62 CALLDICT
       <{
         NEWC
         2 GETGLOBVAR
@@ -737,7 +739,7 @@ SETCP0
       s4 s5 XCHG
       s3 s4 XCHG
       s1 s3 s0 XCHG3
-      55 CALLDICT
+      63 CALLDICT
       <{
         NEWC
         2 GETGLOBVAR
@@ -828,9 +830,11 @@ SETCP0
       }> CALLREF
     }> PUSHCONT
     IFJMP
+    s0 PUSH
     2078119902 PUSHINT
     EQUAL
     <{
+      s0 POP
       <{
         c4 PUSH
         CTOS
@@ -954,7 +958,7 @@ SETCP0
       s5 s6 XCHG
       s4 s5 XCHG
       1 3 BLKSWAP
-      56 CALLDICT
+      64 CALLDICT
       <{
         NEWC
         2 GETGLOBVAR
@@ -1045,28 +1049,214 @@ SETCP0
       }> CALLREF
     }> PUSHCONT
     IFJMP
-    s0 POP
+    0 EQINT
+    <{
+      HASHSU
+      112035188329905946142547757571014323481817249017271886940372980664113557830988 PUSHINT
+      EQUAL
+      <{
+        <{
+          c4 PUSH
+          CTOS
+          LDREF
+          s0 s1 XCHG
+          2 SETGLOBVAR
+          <{
+            LDGRAMS
+            LDMSGADDR
+            s0 s1 XCHG
+            s0 s1 XCHG
+            1 LDI
+            s0 s1 XCHG
+            <{
+              LDREF
+            }> PUSHCONT
+            <{
+              PUSHNULL
+              s0 s1 XCHG
+            }> PUSHCONT
+            IFELSE
+            1 LDI
+            LDMSGADDR
+            s1 PUSH
+            2 PLDU
+            0 NEQINT
+            <{
+              s0 s1 XCHG
+            }> PUSHCONT
+            <{
+              s1 POP
+              PUSHNULL
+            }> PUSHCONT
+            IFELSE
+            s0 s1 XCHG
+            LDMSGADDR
+            s1 PUSH
+            2 PLDU
+            0 NEQINT
+            <{
+              s0 s1 XCHG
+            }> PUSHCONT
+            <{
+              s1 POP
+              PUSHNULL
+            }> PUSHCONT
+            IFELSE
+            s0 s1 XCHG
+            LDREF
+            s0 s1 XCHG
+            CTOS
+            257 PUSHINT
+            LDI
+            LDMSGADDR
+            s1 PUSH
+            2 PLDU
+            0 NEQINT
+            <{
+              s0 s1 XCHG
+            }> PUSHCONT
+            <{
+              s1 POP
+              PUSHNULL
+            }> PUSHCONT
+            IFELSE
+            s0 s1 XCHG
+            <{
+              LDDICT
+              LDDICT
+              257 PUSHINT
+              LDI
+              3 1 BLKSWAP
+            }> CALLREF
+            s3 POP
+            s5 s11 XCHG
+            s5 s10 XCHG
+            s5 s9 XCHG
+            s5 s8 XCHG
+            s5 s7 XCHG
+            s5 s6 XCHG
+            ROT
+          }> CALLREF
+          1 11 BLKDROP2
+        }> CALLREF
+        65 CALLDICT
+        <{
+          NEWC
+          2 GETGLOBVAR
+          s0 s1 XCHG
+          STREF
+          11 1 BLKSWAP
+          <{
+            s11 s10 XCHG2
+            STGRAMS
+            s0 s8 XCHG2
+            STSLICER
+            s6 PUSH
+            ISNULL
+            NOT
+            <{
+              -1 PUSHINT
+              s0 s1 XCHG
+              1 STI
+              s1 s6 XCHG
+              STREF
+            }> PUSHCONT
+            <{
+              s6 POP
+              0 PUSHINT
+              s0 s6 XCHG2
+              1 STI
+            }> PUSHCONT
+            IFELSE
+            s1 s4 XCHG
+            1 STI
+            ROT
+            s0 PUSH
+            ISNULL
+            <{
+              s0 POP
+              0 PUSHINT
+              s0 s1 XCHG
+              2 STU
+            }> PUSHCONT
+            <{
+              STSLICER
+            }> PUSHCONT
+            IFELSE
+            s0 s1 XCHG
+            s0 PUSH
+            ISNULL
+            <{
+              s0 POP
+              0 PUSHINT
+              s0 s1 XCHG
+              2 STU
+            }> PUSHCONT
+            <{
+              STSLICER
+            }> PUSHCONT
+            IFELSE
+            s0 s1 XCHG
+            NEWC
+            257 PUSHINT
+            STIX
+            ROT
+            s0 PUSH
+            ISNULL
+            <{
+              s0 POP
+              0 PUSHINT
+              s0 s1 XCHG
+              2 STU
+            }> PUSHCONT
+            <{
+              STSLICER
+            }> PUSHCONT
+            IFELSE
+            s4 s3 XCHG2
+            <{
+              s2 s3 XCHG2
+              STDICT
+              STDICT
+              257 PUSHINT
+              STIX
+            }> CALLREF
+            ENDC
+            s0 s1 XCHG
+            STREF
+          }> CALLREF
+          ENDC
+          c4 POP
+        }> CALLREF
+        RETALT
+      }> PUSHCONT
+      IFJMP
+    }> PUSHCONT
+    <{
+      s0 POP
+    }> PUSHCONT
+    IFELSE
     130 THROW
 
-  1: 
+  2: 
     s0 PUSH
     ISNULL
     128 THROWIF
 
-  32: 
+  37: 
 
-  35: 
+  40: 
     NEWC
     ENDC
 
-  36: 
+  41: 
     CTOS
 
-  37: 
+  42: 
-    35 CALLDICT
+    40 CALLDICT
-    36 CALLDICT
+    41 CALLDICT
 
-  38: 
+  43: 
     0 PUSHINT
     ROTREV
     NEWC
@@ -1097,7 +1287,7 @@ SETCP0
     ENDC
     CTOS
 
-  39: 
+  44: 
     NEWC
     1 PUSHINT
     s0 s1 XCHG
@@ -1141,7 +1331,7 @@ SETCP0
         s0 s1 XCHG
         1 STI
         s0 s4 XCHG
-        1 CALLDICT
+        2 CALLDICT
         s0 s4 XCHG2
         STREF
       }> PUSHCONT
@@ -1161,7 +1351,7 @@ SETCP0
         s0 s1 XCHG
         1 STI
         s0 s4 XCHG
-        1 CALLDICT
+        2 CALLDICT
         s0 s4 XCHG2
         STREF
       }> PUSHCONT
@@ -1202,7 +1392,7 @@ SETCP0
       s0 s1 XCHG
       1 STI
       s0 s1 XCHG
-      1 CALLDICT
+      2 CALLDICT
       s0 s1 XCHG
       STREF
     }> IFREFELSEREF
@@ -1214,7 +1404,18 @@ SETCP0
     s0 s1 XCHG
     1 STI
 
-  40: 
+  45: 
+    -1 PUSHINT
+    0 PUSHINT
+    NEWC
+    PUSHSLICE
+    STSLICER
+    ENDC
+    s2 s4 XCHG
+    PUSHNULL
+    PUSHNULL
+
+  46: 
     0 PUSHINT
     PUSHNULL
     PUSHNULL
@@ -1272,7 +1473,7 @@ SETCP0
     }> CALLREF
     ENDC
 
-  41: 
+  47: 
     s0 s2 XCHG
     CTOS
     LDDICT
@@ -1295,9 +1496,9 @@ SETCP0
     STDICT
     ENDC
     s0 s0 s3 XCHG3
-    40 CALLDICT
+    46 CALLDICT
 
-  42: 
+  48: 
     PUSHNULL
     s0 s4 XCHG
     NEWC
@@ -1331,7 +1532,7 @@ SETCP0
     }> CALLREF
     ENDC
 
-  43: 
+  49: 
     s0 s3 XCHG
     CTOS
     LDDICT
@@ -1355,39 +1556,39 @@ SETCP0
     ENDC
     3 1 BLKSWAP
     s0 s4 XCHG
-    42 CALLDICT
+    48 CALLDICT
 
-  44: 
+  50: 
     2 GETGLOBVAR
     MYADDR
     ROT
-    41 CALLDICT
+    47 CALLDICT
 
-  45: 
+  51: 
-    44 CALLDICT
+    50 CALLDICT
     11 2 BLKDROP2
-    38 CALLDICT
+    43 CALLDICT
 
-  46: 
+  52: 
     MYADDR
-    44 CALLDICT
+    50 CALLDICT
     7 2 BLKDROP2
     s0 POP
     s3 s3 s0 XCHG3
 
-  47: 
+  53: 
     s13 s1 XCPU
     ADD
     11 2 BLKSWAP
-    44 CALLDICT
+    50 CALLDICT
     2DUP
-    38 CALLDICT
+    43 CALLDICT
     2 GETGLOBVAR
     MYADDR
     9 2 -2 PU2XC
-    43 CALLDICT
+    49 CALLDICT
     2DUP
-    38 CALLDICT
+    43 CALLDICT
     0 PUSHINT
     20000000 PUSHINT
     0 PUSHINT
@@ -1420,14 +1621,14 @@ SETCP0
     s4 s1 s5 XCHG3
     s3 s15 XCHG
     s1 s15 s0 XCHG3
-    39 CALLDICT
+    44 CALLDICT
     s8 PUSH
     s0 s8 XCHG
     INC
     0 PUSHINT
     MYADDR
     s1 PUSH
-    37 CALLDICT
+    42 CALLDICT
     s4 PUSH
     DEC
     s4 s7 XCHG
@@ -1516,7 +1717,7 @@ SETCP0
     0 PUSHINT
     s3 s1 s3 XCHG3
     s0 s17 XCHG
-    39 CALLDICT
+    44 CALLDICT
     s8 s10 XCHG
     s7 s9 XCHG
     s6 s8 XCHG
@@ -1525,7 +1726,7 @@ SETCP0
     s0 s3 s5 XCHG3
     s1 s4 XCHG
 
-  48: 
+  54: 
     s10 s13 XCHG
     s9 s12 XCHG
     s8 s11 XCHG
@@ -1536,9 +1737,9 @@ SETCP0
     s3 s12 XCHG
     s11 s13 s12 XCHG3
     s11 PUSH
-    44 CALLDICT
+    50 CALLDICT
     2DUP
-    38 CALLDICT
+    43 CALLDICT
     0 PUSHINT
     0 PUSHINT
     64 PUSHINT
@@ -1588,28 +1789,28 @@ SETCP0
     s0 s4 XCHG
     s3 s15 XCHG
     s15 s2 XCHG2
-    39 CALLDICT
+    44 CALLDICT
     s7 s10 XCHG
     3 7 BLKSWAP
 
-  49: 
+  55: 
     1 GETGLOBVAR
     4 UNTUPLE
     s2 s3 XCHG
     3 BLKDROP
     12 1 BLKSWAP
-    44 CALLDICT
+    50 CALLDICT
     s0 s1 XCHG
     4429 PUSHINT
     s0 s2 XCHG
-    38 CALLDICT
+    43 CALLDICT
     s0 s13 XCHG2
     SDEQ
     s1 s12 XCHG
     THROWANYIFNOT
     1 10 BLKSWAP
 
-  50: 
+  56: 
     1 GETGLOBVAR
     4 UNTUPLE
     s2 s3 XCHG
@@ -1618,11 +1819,72 @@ SETCP0
     SDEQ
     132 THROWIFNOT
 
-  51: 
+  57: 
     s9 s10 XCHG
     10 BLKDROP
 
-  52: 
+  58: 
+    s3 PUSH
+    ISNULL
+    IFRET
+    BALANCE
+    0 INDEX
+    100000000 PUSHINT
+    SUB
+    s0 PUSH
+    50000000 PUSHINT
+    LESS
+    <{
+      s0 POP
+    }> PUSHCONT
+    IFJMP
+    s4 PUSH
+    2 CALLDICT
+    45 CALLDICT
+    44 CALLDICT
+
+  59: 
+    s1 s4 XCHG
+    257 PUSHINT
+    0 3 5 XCPUXC
+    s0 PUSH
+    ISNULL
+    <{
+      s0 POP
+      ROTREV
+      DICTIDEL
+      s0 POP
+    }> PUSHCONT
+    <{
+      s1 s3 s3 XCHG3
+      DICTISET
+    }> PUSHCONT
+    IFELSE
+    257 PUSHINT
+    s0 PUSH
+    s3 s4 XCHG
+    4 0 2 PUXC2
+    s6 s6 XCHG2
+    s1 PUSH
+    ISNULL
+    <{
+      2DROP
+      ROTREV
+      DICTIDEL
+      s0 POP
+    }> PUSHCONT
+    <{
+      NEWC
+      s0 s1 XCHG
+      STIX
+      s1 s3 s3 XCHG3
+      DICTISETB
+    }> PUSHCONT
+    IFELSE
+    s0 s1 XCHG
+    INC
+
+  60: 
     1 GETGLOBVAR
     4 UNTUPLE
     s0 POP
@@ -1640,32 +1902,33 @@ SETCP0
     s1 s2 XCHG
     THROWANYIFNOT
     TUCK
-    47 CALLDICT
+    53 CALLDICT
+    58 CALLDICT
 
-  53: 
+  61: 
 
-  54: 
+  62: 
     1 GETGLOBVAR
     4 UNTUPLE
     s0 POP
     6384 PUSHINT
     s3 POP
-    10000000 PUSHINT
+    100000000 PUSHINT
     GEQ
     s1 s2 XCHG
     THROWANYIFNOT
     TUCK
-    48 CALLDICT
+    54 CALLDICT
 
-  55: 
+  63: 
     11 1 BLKSWAP
-    50 CALLDICT
+    56 CALLDICT
     s8 POP
     s9 s10 XCHG
     s8 s9 XCHG
     1 7 BLKSWAP
 
-  56: 
+  64: 
     s0 POP
     s2 POP
     s10 s12 XCHG
@@ -1677,19 +1940,191 @@ SETCP0
     s3 s11 XCHG
     s12 s11 s12 XCHG3
     s11 PUSH
-    49 CALLDICT
+    55 CALLDICT
     s10 s12 XCPU
     SUB
+    BALANCE
+    0 INDEX
+    100000000 PUSHINT
+    SUB
+    100000000 PUSHINT
+    SUB
+    s0 s13 PUSH2
+    LESS
+    <{
+      s1 s13 XCHG
+      SUB
+      0 PUSHINT
+      BALANCE
+      0 INDEX
+      100000000 PUSHINT
+      SUB
+      s13 s-1 PUXC
+      0 PUSHINT
+      PUSHNULL
+      PUSHNULL
+      PUSHNULL
+      44 CALLDICT
+      0 PUSHINT
+      MYADDR
+      MYADDR
+      s2 PUSH
+      42 CALLDICT
+      s5 PUSH
+      4 1 BLKSWAP
+      PUSHNULL
+      PUSHNULL
+      <{
+        NEWC
+        8 1 BLKSWAP
+        <{
+          395134233 PUSHINT
+          s0 s9 XCHG2
+          32 STU
+          s1 s7 XCHG
+          64 STU
+          s0 s5 XCHG2
+          STGRAMS
+          s0 s3 XCHG2
+          STSLICER
+          s0 s1 XCHG
+          s0 PUSH
+          ISNULL
+          <{
+            s0 POP
+            0 PUSHINT
+            s0 s1 XCHG
+            2 STU
+          }> PUSHCONT
+          <{
+            STSLICER
+          }> PUSHCONT
+          IFELSE
+          s0 s1 XCHG
+          STGRAMS
+          s0 s1 XCHG
+          STSLICER
+          NEWC
+          s2 PUSH
+          ISNULL
+          NOT
+          <{
+            -1 PUSHINT
+            s0 s1 XCHG
+            1 STI
+            s1 s2 XCHG
+            257 PUSHINT
+            STIX
+          }> PUSHCONT
+          <{
+            s2 POP
+            0 PUSHINT
+            ROT
+            1 STI
+          }> PUSHCONT
+          IFELSE
+          ROT
+          s0 PUSH
+          ISNULL
+          <{
+            s0 POP
+            0 PUSHINT
+            s0 s1 XCHG
+            2 STU
+          }> PUSHCONT
+          <{
+            STSLICER
+          }> PUSHCONT
+          IFELSE
+          ENDC
+          s0 s1 XCHG
+          STREF
+        }> CALLREF
+        ENDC
+      }> CALLREF
+      13 10 9 PUSH3
+      11 10 9 PUSH3
+      11 10 9 PUSH3
+      s11 PUSH
+      s21 PUSH
+      s23 PUSH
+      51 CALLDICT
+      0 PUSHINT
+      s0 s2 XCHG
+      0 PUSHINT
+      64 PUSHINT
+      ROT
+      PUSHNULL
+      PUSHNULL
+      44 CALLDICT
+      s9 s11 XCHG
+      s8 s10 XCHG
+      s7 s9 XCHG
+      s6 s8 XCHG
+      s5 s7 XCHG
+      s4 s6 XCHG
+      s3 s5 XCHG
+      s4 s3 s0 XCHG3
+      59 CALLDICT
+    }> IFJMPREF
+    s0 POP
     0 PUSHINT
     s0 s12 s13 XCHG3
     0 PUSHINT
     PUSHNULL
     PUSHNULL
     PUSHNULL
-    39 CALLDICT
+    44 CALLDICT
     s9 s10 XCHG
     2 8 BLKSWAP
 
+  65: 
+    0 PUSHINT
+    <{
+      s0 s1 PUSH2
+      LESS
+    }> PUSHCONT
+    <{
+      -1 PUSHINT
+      s4 PUSH
+      257 PUSHINT
+      s3 PUSH
+      ROTREV
+      DICTIGET
+      NULLSWAPIFNOT
+      <{
+        s0 POP
+        PUSHNULL
+      }> PUSHCONT
+      IFNOT
+      2 CALLDICT
+      257 PUSHINT
+      5 -1 -1 PUXCPU
+      s5 s-1 PUXC
+      s1 s3 s3 XCHG3
+      DICTIGET
+      NULLSWAPIFNOT
+      <{
+        s0 s1 XCHG
+        LDI
+        s0 POP
+      }> PUSHCONT
+      <{
+        2DROP
+        PUSHNULL
+      }> PUSHCONT
+      IFELSE
+      2 CALLDICT
+      0 PUSHINT
+      PUSHNULL
+      PUSHNULL
+      PUSHNULL
+      44 CALLDICT
+      INC
+    }> PUSHCONT
+    WHILE
+    s0 POP
+
   owner: 
     <{
       c4 PUSH
@@ -1775,7 +2210,7 @@ SETCP0
       }> CALLREF
       1 11 BLKDROP2
     }> CALLREF
-    51 CALLDICT
+    57 CALLDICT
 
   get_wallet_address: 
     <{
@@ -1863,7 +2298,7 @@ SETCP0
       1 11 BLKDROP2
     }> CALLREF
     1 11 BLKSWAP
-    45 CALLDICT
+    51 CALLDICT
 
   get_jetton_data: 
     <{
@@ -1950,8 +2385,8 @@ SETCP0
       }> CALLREF
       1 11 BLKDROP2
     }> CALLREF
-    46 CALLDICT
+    52 CALLDICT
-    32 CALLDICT
+    37 CALLDICT
 
   113617: 
     123515602279859691144772641439386770278 PUSHINT

sources/output/jetton_TONB.md

@@ -1,6 +1,6 @@
 # TACT Compilation Report
 Contract: TONB
-BOC Size: 1822 bytes
+BOC Size: 2191 bytes
 
 # Types
 Total Types: 27

sources/staking.tact

@@ -1,3 +1,6 @@
+import "constants";
+import "messages";
+
 fun stakingDepositMessage(value: Int, pool: Address): SendParameters {
     return SendParameters{
         to: pool,
@@ -29,3 +32,49 @@ fun withdrawalSum(requests: WithdrawalRequests): Int {
     }
     return sum;
 }
+
+trait StakingTrait {
+    staking_pool: Address?;
+    withdrawal_requests: WithdrawalRequests;
+
+    fun sendStake() {
+        if(self.staking_pool == null) {
+            return;
+        }
+        let value: Int = myBalance() - tonb_floor;
+        if(value < ton("0.05")) {
+            return;
+        }
+        send(stakingDepositMessage(value, self.staking_pool!!));
+    }
+
+    fun sendWithdrawal() {
+        if(self.staking_pool == null) {
+            return;
+        }
+        let value: Int = withdrawalSum(self.withdrawal_requests);
+        send(stakingWithdrawMessage(value, self.staking_pool!!));
+    }
+
+    receive("Withdraw completed") {
+        let i: Int = 0;
+        while(i < self.withdrawal_requests.n_requests) {
+            send(SendParameters{
+                to: self.withdrawal_requests.addresses.get(i)!!,
+                value: self.withdrawal_requests.amounts.get(i)!!
+            });
+            i = i + 1;
+        }
+        // self.withdrawal_requests = WithdrawalRequests{
+        //     addresses: addresses,
+        //     amounts: amounts
+        // };
+        // todo: initialize withdrawal_requests
+    }
+
+    fun requestWithdrawal(address: Address, value: Int) {
+        self.withdrawal_requests.addresses.set(self.withdrawal_requests.n_requests, address);
+        self.withdrawal_requests.amounts.set(self.withdrawal_requests.n_requests, value);
+        self.withdrawal_requests.n_requests = self.withdrawal_requests.n_requests + 1;
+    }
+}