L2 Vault

The Vault is a simple smart contract designed to enable the DAO to manage chain-native assets and ERC-20 tokens across chains other than Ethereum.

Vault.vy

The source code of the Vault.vy contract can be found on GitHub .

A comprehensive list of all deployed contracts is available here .

This contract is directly controlled by its owner, which is the OwnershipAgent of the respective chain.

Transferring Assets¶

The contract features a transfer function that allows the owner to transfer tokens out of the Vault to a specified receiver address.

transfer

Vault.transfer(_token: address, _to: address, _value: uint256):

Guarded Method

This function can only be called by the owner of the contract, which is the respective chain's OwnershipAgent.

Function to transfer a specific amount of tokens from the vault to another address.

Input	Type	Description
`_token`	`address`	Token to transfer
`_to`	`address`	Destination of the asset
`_value`	`uint256`	Amount of assets to transfer

Source code

Vault.vy

NATIVE: constant(address) = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE

owner: public(address)

@external
def transfer(_token: address, _to: address, _value: uint256):
    """
    @notice Transfer an asset
    @param _token The token to transfer, or NATIVE if transferring the chain native asset
    @param _to The destination of the asset
    @param _value The amount of the asset to transfer
    """
    assert msg.sender == self.owner

    if _token == NATIVE:
        send(_to, _value)
    else:
        assert ERC20(_token).transfer(_to, _value, default_return_value=True)

Example

This example transfers 1 ARB token from the vault to 0x0000000000000000000000000000000000000000 on Arbitrum.

>>> Vault.transfer('0x912CE59144191C1204E64559FE8253a0e49E6548', '0x0000000000000000000000000000000000000000', 1000000000000000000)

Contract Ownership¶

Ownership of the Vault contract follows the classic model of contract ownership. It includes an owner address, which can be updated by first committing a future owner and then applying the changes. More on transfering ownership can be found here.