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add netuid argument #991

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add netuid argument #991

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4f92d34
add netuid argument
open-junius Nov 18, 2024
a8ce070
removed commented code
open-junius Nov 18, 2024
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33 changes: 29 additions & 4 deletions runtime/src/precompiles/staking.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -72,11 +72,15 @@ impl StakingPrecompile {
<Runtime as pallet_evm::Config>::BalanceConverter::into_substrate_balance(amount)
.ok_or(ExitError::OutOfFund)?;

let netuid =
Self::parse_netuid(data.get(56..64).unwrap_or(Err(PrecompileFailure::Error {
exit_status: ExitError::InvalidRange,
})?))?;

// Create the add_stake call
let call = RuntimeCall::SubtensorModule(pallet_subtensor::Call::<Runtime>::add_stake {
hotkey,
// TODO update contract to add netuid
netuid: 1,
netuid,
amount_staked: amount_sub.unique_saturated_into(),
});
// Dispatch the add_stake call
Expand All @@ -96,10 +100,14 @@ impl StakingPrecompile {
<Runtime as pallet_evm::Config>::BalanceConverter::into_substrate_balance(amount)
.ok_or(ExitError::OutOfFund)?;

let netuid =
Self::parse_netuid(data.get(64..72).unwrap_or(Err(PrecompileFailure::Error {
exit_status: ExitError::InvalidRange,
})?))?;

let call = RuntimeCall::SubtensorModule(pallet_subtensor::Call::<Runtime>::remove_stake {
hotkey,
// TODO update contract to add netuid
netuid: 1,
netuid,
amount_unstaked: amount_sub.unique_saturated_into(),
});
Self::dispatch(handle, call)
Expand All @@ -116,6 +124,23 @@ impl StakingPrecompile {
Ok(hotkey)
}

fn parse_netuid(data: &[u8]) -> Result<u16, PrecompileFailure> {
let netuid = data
.get(0..8)
.map(U256::from_big_endian)
.ok_or(ExitError::InvalidRange)?;

let u16_max_u256 = U256::from(u16::MAX);
if netuid > u16_max_u256 {
// if netuid.as_u128() > u16::MAX as u128 {
return Err(PrecompileFailure::Error {
exit_status: ExitError::InvalidRange,
});
}

Ok(netuid.as_u32() as u16)
}

fn dispatch(handle: &mut impl PrecompileHandle, call: RuntimeCall) -> PrecompileResult {
let account_id =
<HashedAddressMapping<BlakeTwo256> as AddressMapping<AccountId32>>::into_account_id(
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