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money/swap: DEP-0008 support

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2026-02-19 10:01:36 +00:00
parent 198591d2d5
commit 9f314b8cfa
1 changed files with 19 additions and 6 deletions
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25
src/contract/money/src/entrypoint/swap_v1.rs
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@@ -114,11 +114,17 @@ pub(crate) fn money_otcswap_process_instruction_v1(
msg!("[OtcSwapV1] Iterating over anonymous inputs");
for (i, input) in params.inputs.iter().enumerate() {
// The Merkle root is used to know whether this coin
// has existed in a previous state.
if !wasm::db::db_contains_key(coin_roots_db, &serialize(&input.merkle_root))? {
msg!("[OtcSwapV1] Error: Merkle root not found in previous state (input {})", i);
return Err(MoneyError::SwapMerkleRootNotFound.into())
// The Merkle root is used to know whether this coin existed in a previous state.
if input.intra_tx {
if !wasm::tx_local::coin_roots_contains(&input.merkle_root)? {
msg!("[OtcSwapV1] Error: Merkle root not found in tx-local state (input {})", i);
return Err(MoneyError::SwapMerkleRootNotFound.into())
}
} else {
if !wasm::db::db_contains_key(coin_roots_db, &serialize(&input.merkle_root))? {
msg!("[OtcSwapV1] Error: Merkle root not found in previous state (input {})", i);
return Err(MoneyError::SwapMerkleRootNotFound.into())
}
}
// The nullifiers should not already exist. It is the double-spend protection.
@@ -135,13 +141,20 @@ pub(crate) fn money_otcswap_process_instruction_v1(
// Newly created coins for this call are in the outputs
for (i, output) in params.outputs.iter().enumerate() {
if new_coins.contains(&output.coin) ||
wasm::tx_local::new_coins_contains(&output.coin.inner())? ||
wasm::db::db_contains_key(coins_db, &serialize(&output.coin))?
{
msg!("[OtcSwapV1] Error: Duplicate coin found in output {}", i);
return Err(MoneyError::DuplicateCoin.into())
}
new_coins.push(output.coin);
if output.intra_tx {
// In intra-tx, it'll exist during the transaction lifetime.
wasm::tx_local::append_coin(&output.coin.inner())?;
} else {
// Otherwise, it'll be added globally.
new_coins.push(output.coin);
}
}
// Create a state update. We also use `MoneyTransferUpdateV1` because