SimpleRouter

Maker contracts using this router must make sure that the reserve approves the router for all asset that will be pulled (outbound tokens) Thus a maker contract using a vault that is not an EOA must make sure this vault has approval capacities.

pull

function __pull__(contract IERC20 token, address owner, uint256 amount, bool strict) internal virtual returns (uint256 pulled)

transfers an amount of tokens from the reserve to the maker.

requires approval from owner for this to transfer token.

Parameters

Name	Type	Description
token	contract IERC20	Token to be transferred
owner	address	The account from which the tokens will be transferred.
amount	uint256	The amount of tokens to be transferred
strict	bool	wether the caller maker contract wishes to pull at most amount tokens of owner.

Return Values

Name	Type	Description
pulled	uint256	The amount pulled if successful (will be equal to amount); otherwise, 0.

push

function __push__(contract IERC20 token, address owner, uint256 amount) internal virtual returns (uint256)

transfers an amount of tokens from the maker to the reserve.

Parameters

Name	Type	Description
token	contract IERC20	Token to be transferred
owner	address
amount	uint256	The amount of tokens to be transferred

Return Values

Name	Type	Description
[0]	uint256

balanceOfReserve

function balanceOfReserve(contract IERC20 token, address owner) public view returns (uint256)

Balance of a reserve

Parameters

Name	Type	Description
token	contract IERC20	the asset one wishes to know the balance of
owner	address

Return Values

Name	Type	Description
[0]	uint256	the balance of the reserve

checkList

function __checkList__(contract IERC20 token, address owner) internal view virtual

router-dependent implementation of the checkList function verifies all required approval involving this router (either as a spender or owner)

checkList returns normally if all needed approval are strictly positive. It reverts otherwise with a reason.

Parameters

Name	Type	Description
token	contract IERC20	is the asset whose approval must be checked
owner	address	the account that requires asset pulling/pushing