IA0xRouter

IA0xRouter

Allows Rigoblock smart pools to execute swaps via the 0x AllowanceHolder and Settler contracts.

DirectCallNotAllowed

error DirectCallNotAllowed()

Thrown when a call is made directly to the adapter instead of via delegatecall.

RecipientNotSmartPool

error RecipientNotSmartPool()

Thrown when the swap recipient is not the smart pool.

CounterfeitSettler

error CounterfeitSettler(address target)

Thrown when the target is not a genuine 0x Settler instance.

UnsupportedSettlerFunction

error UnsupportedSettlerFunction()

Thrown when the Settler calldata has an unsupported function selector.

InvalidSettlerCalldata

error InvalidSettlerCalldata()

Thrown when the Settler calldata is too short to decode.

InsufficientNativeBalance

error InsufficientNativeBalance()

Thrown when the pool does not hold enough native balance.

ActionNotAllowed

error ActionNotAllowed(bytes4 actionSelector)

Thrown when a settler action is not in the adapter's allowlist.

Only whitelisted DEX swap actions are permitted.

Parameters

Name	Type	Description
actionSelector	bytes4	The 4-byte selector of the rejected action.

OperatorMustEqualTarget

error OperatorMustEqualTarget()

Thrown when operator is not the same address as target.

AllowanceHolder stores the ephemeral allowance under operator. If operator differs from the genuine Settler (target), a malicious operator contract could consume the ephemeral allowance and drain pool tokens to an arbitrary address.

TransferFromRecipientNotSettler

error TransferFromRecipientNotSettler(address recipient)

Thrown when a TRANSFER_FROM action's recipient is not the Settler itself.

Allowing an arbitrary recipient would let the pool owner drain funds.

Parameters

Name	Type	Description
recipient	address	The decoded recipient address that failed the check.

exec

function exec(address operator, address token, uint256 amount, address payable target, bytes data) external payable returns (bytes result)

Execute a swap via the 0x AllowanceHolder contract.

The calldata is forwarded unmodified to AllowanceHolder after validation.

Parameters

Name	Type	Description
operator	address	The address authorized to consume the ephemeral allowance. Must equal target.
token	address	The sell token address.
amount	uint256	The sell token amount.
target	address payable	The 0x Settler contract address that will execute the swap.
data	bytes	The Settler.execute() calldata containing swap instructions.

Return Values

Name	Type	Description
result	bytes	The return data from AllowanceHolder.exec.