TokenWrapper

View Source: @nomisma/elektro-protocol-aux/contracts/tokens/safe-transfer/TokenWrapper.sol

↘ Derived Contracts: TokenWrapperProxy

TokenWrapper

Contract used for safe transferring non compatible {ERC20} tokens. According to article, some {ERC20} tokens do not return value for transfer, {transferFrom}, approve functions. {TokenWrapper} implements safe methods that can handle non-compliant tokens. Using assembly we check if method execution was successful, even if no value was returned.

Functions

• safeTransfer(address _token, address _to, uint256 _value)

• safeTransferFrom(address _token, address _from, address _to, uint256 _value)

• safeApprove(address _token, address _spender, uint256 _value)

safeTransfer

function safeTransfer(address _token, address _to, uint256 _value) external payable
returns(bool)

Arguments

Name	Type	Description
_token	address
_to	address
_value	uint256

safeTransferFrom

function safeTransferFrom(address _token, address _from, address _to, uint256 _value) external payable
returns(bool)

Arguments

Name	Type	Description
_token	address
_from	address
_to	address
_value	uint256

safeApprove

function safeApprove(address _token, address _spender, uint256 _value) external payable
returns(bool)

Arguments

Name	Type	Description
_token	address
_spender	address
_value	uint256