L2 Message Receiver

L2MessageReceiver.sol is an implementation of the ILayerZeroReceiver interface used to receive messages via LayerZero. It receives instructions to mint MOR tokens (e.g. to Capital Providers) from L1Sender on Ethereum.

Variables

Name	Type	Description
rewardToken	address	The address of the wrapped reward token (wstETH) on Arbitrum.
config	Config	Configuration data for LayerZero messaging.

Functions

lzReceive

function lzReceive(
    uint16 senderChainId_,
    bytes memory senderAndReceiverAddresses_,
    uint64 nonce_,
    bytes memory payload_
    ) external

Mints MOR tokens according to instructions sent by L1Sender via LayerZero. This function is blocking.

Parameters:

Name	Type	Description
senderChainId_	uint16	The LayerZero endpointId of the sender (101/Ethereum)
senderAndReceiverAddresses_	bytes	Concatenated addresses of the sender L1Sender and receiver L2MessageReceiver.
nonce_	uint64	Nonce of the message.
payload_	bytes	Minting instructions sent by L1Sender, consisting of an address to mint MOR tokens to and an amount. ABI encoded as (address, uint256).

nonblockingLzReceive

function nonblockingLzReceive(
    uint16 senderChainId_,
    bytes memory senderAndReceiverAddresses_,
    bytes memory payload_
    ) public

Mints MOR tokens according to instructions sent by L1Sender via LayerZero. This function is non-blocking.

Parameters:

Name	Type	Description
senderChainId_	uint16	The LayerZero endpointId of the sender (101/Ethereum)
senderAndReceiverAddresses_	bytes	Concatenated addresses of the sender L1Sender and receiver L2MessageReceiver.
payload_	bytes	Minting instructions sent by L1Sender, consisting of an address to mint MOR tokens to and an amount. ABI encoded as (address, uint256).

retryMessage

function retryMessage(
    uint16 senderChainId_,
    bytes memory senderAndReceiverAddresses_,
    uint64 nonce_,
    bytes memory payload_
    ) external

Retries the processing of a previously failed message.

Parameters

Name	Type	Description
senderChainId_	uint16	The LayerZero endpointId of the sender (101/Ethereum)
senderAndReceiverAddresses_	bytes	Concatenated addresses of the sender L1Sender and receiver L2MessageReceiver.
nonce_	uint64	Nonce of the failed message.
payload_	bytes	Minting instructions sent by L1Sender, consisting of an address to mint MOR tokens to and an amount. ABI encoded as (address, uint256).

L2MessageReceiver__init

function L2MessageReceiver__init() external initializer {
    __Ownable_init();
    __UUPSUpgradeable_init();
    }

Initializes the contract for ownership and upgradeability.

setParams

function setParams(
    address rewardToken_,
    Config calldata config_
    ) external onlyOwner

Sets the parameters of the contract, including the address of the wrapped reward token (wstETH) on Arbitrum and LayerZero configuration settings.

Parameters:

Name	Type	Description
rewardToken_	address	The address of the wrapped reward token on Arbitrum.
config_	Config	Config struct containing various parameters.

Structs

Config

struct Config {
    address gateway;
    address sender;
    uint16 senderChainId;
    }

Configuration data for LayerZero messaging.

Fields

Name	Type	Description
gateway	address	The address of the LayerZero gateway on Arbitrum.
sender	address	The address of L1Sender.
senderChainId	uint16	The LayerZero endpointId of the sender (101/Ethereum)