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Gas optimization in NFT raffler #19

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Gas optimization in NFT raffler #19

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b1d7e80
Gas optimization in NFT raffler
ProgramCrafter Jan 16, 2023
6d070e4
Update nft-swap.fc
ProgramCrafter Jan 16, 2023
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17 changes: 12 additions & 5 deletions packages/contracts/sources/nft-raffle/struct/utils.func
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Original file line number Diff line number Diff line change
@@ -1,3 +1,10 @@
;; Constant slices heavily used as dictionary values
;; Inlined to avoid cell creation fee.
slice const_1bit_0() asm "b{0} PUSHSLICE";
slice const_1bit_1() asm "b{1} PUSHSLICE";
slice const_4bit_2() asm "x{2} PUSHSLICE";
slice const_4bit_3() asm "x{3} PUSHSLICE";

() utils::send_nft(int mode, int amount, slice to, int nft_addr) impure inline_ref {
builder body = begin_cell()
.store_uint(op::transfer(), 32) ;; op
Expand Down Expand Up @@ -56,10 +63,10 @@
return (dict, 0, 0);
}
if (data~load_uint(4) == 0) {
dict~udict_set(256, nft_addr, begin_cell().store_uint(2, 4).end_cell().begin_parse());
dict~udict_set(256, nft_addr, const_4bit_2());
left_success = -1;
} else {
dict~udict_set(256, nft_addr, begin_cell().store_uint(3, 4).end_cell().begin_parse());
dict~udict_set(256, nft_addr, const_4bit_3());
right_success = -1;
}
return(dict, left_success, right_success);
Expand All @@ -71,9 +78,9 @@ cell utils::raffle_nfts(cell raffled_nfts, cell nfts) inline_ref {
(key, slice data, int found) = nfts.udict_get_next?(256, key);
if (found) {
if (rand(2) == 0) {
raffled_nfts~udict_set(256, key, begin_cell().store_uint(1, 1).end_cell().begin_parse());
raffled_nfts~udict_set(256, key, const_1bit_1());
} else {
raffled_nfts~udict_set(256, key, begin_cell().store_uint(0, 1).end_cell().begin_parse());
raffled_nfts~udict_set(256, key, const_1bit_0());
}
}
} until (~ found)
Expand All @@ -96,4 +103,4 @@ int utils::check_conditions() inline_ref method_id {
.store_uint(0, 32)
.store_slice(message);
send_raw_message(msg.end_cell(), mode);
}
}
6 changes: 4 additions & 2 deletions packages/contracts/sources/nft-swap.fc
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@ int nft_send_amount() asm "50000000 PUSHINT"; ;; 0.05 TON
int min_tons_per_nft() asm "100000000 PUSHINT"; ;; 0.1 TON
int min_tons_for_storage_after_swap() asm "1000000 PUSHINT"; ;; 0.001 TON

slice const_1bit_1() asm "b{1} PUSHSLICE";

global int state;
global slice supervisor;
global slice commission_gainer;
Expand Down Expand Up @@ -72,7 +74,7 @@ global int right_coins_got;
return (dict, 0);
}

dict~udict_set(256, nft, begin_cell().store_uint(1,1).end_cell().begin_parse());
dict~udict_set(256, nft, const_1bit_1());
return (dict, -1);
}

Expand Down Expand Up @@ -301,4 +303,4 @@ slice get_supervisor() method_id {
load_data();

return supervisor;
}
}