* rename ERC20 to IERC20 * move ERC20.sol to IERC20.sol * rename StandardToken to ERC20 * rename StandardTokenMock to ERC20Mock * move StandardToken.sol to ERC20.sol, likewise test and mock files * rename MintableToken to ERC20Mintable * move MintableToken.sol to ERC20Mintable.sol, likewise test and mock files * rename BurnableToken to ERC20Burnable * move BurnableToken.sol to ERC20Burnable.sol, likewise for related files * rename CappedToken to ERC20Capped * move CappedToken.sol to ERC20Capped.sol, likewise for related files * rename PausableToken to ERC20Pausable * move PausableToken.sol to ERC20Pausable.sol, likewise for related files * rename DetailedERC20 to ERC20Detailed * move DetailedERC20.sol to ERC20Detailed.sol, likewise for related files * rename ERC721 to IERC721, and likewise for other related interfaces * move ERC721.sol to IERC721.sol, likewise for other 721 interfaces * rename ERC721Token to ERC721 * move ERC721Token.sol to ERC721.sol, likewise for related files * rename ERC721BasicToken to ERC721Basic * move ERC721BasicToken.sol to ERC721Basic.sol, likewise for related files * rename ERC721PausableToken to ERC721Pausable * move ERC721PausableToken.sol to ERC721Pausable.sol * rename ERC165 to IERC165 * move ERC165.sol to IERC165.sol * amend comment that ERC20 is based on FirstBlood * fix comments mentioning IERC721Receiver
40 lines
1005 B
Solidity
40 lines
1005 B
Solidity
pragma solidity ^0.4.24;
|
|
|
|
import "./ERC20.sol";
|
|
|
|
|
|
/**
|
|
* @title Burnable Token
|
|
* @dev Token that can be irreversibly burned (destroyed).
|
|
*/
|
|
contract ERC20Burnable is ERC20 {
|
|
|
|
event TokensBurned(address indexed burner, uint256 value);
|
|
|
|
/**
|
|
* @dev Burns a specific amount of tokens.
|
|
* @param _value The amount of token to be burned.
|
|
*/
|
|
function burn(uint256 _value) public {
|
|
_burn(msg.sender, _value);
|
|
}
|
|
|
|
/**
|
|
* @dev Burns a specific amount of tokens from the target address and decrements allowance
|
|
* @param _from address The address which you want to send tokens from
|
|
* @param _value uint256 The amount of token to be burned
|
|
*/
|
|
function burnFrom(address _from, uint256 _value) public {
|
|
_burnFrom(_from, _value);
|
|
}
|
|
|
|
/**
|
|
* @dev Overrides ERC20._burn in order for burn and burnFrom to emit
|
|
* an additional Burn event.
|
|
*/
|
|
function _burn(address _who, uint256 _value) internal {
|
|
super._burn(_who, _value);
|
|
emit TokensBurned(_who, _value);
|
|
}
|
|
}
|