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fix a problem when revoke is called twice

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This commit is contained in:
Francisco Giordano
2017-10-09 19:01:04 -03:00
parent 5aba967db9
commit 01b92d1d56
2 changed files with 24 additions and 9 deletions
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12
contracts/token/TokenVesting.sol
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@ -27,6 +27,7 @@ contract TokenVesting is Ownable {
bool revocable;
mapping (address => uint256) released;
mapping (address => bool) revoked;
/**
* @dev Creates a vesting contract that vests its balance of any ERC20 token to the
@ -65,17 +66,22 @@ contract TokenVesting is Ownable {
}
/**
* @notice Allows the owner to revoke the vesting. Tokens already vested remain in the contract.
* @notice Allows the owner to revoke the vesting. Tokens already vested
* remain in the contract, the rest are returned to the owner.
* @param token ERC20 token which is being vested
*/
function revoke(ERC20Basic token) onlyOwner {
require(revocable);
require(!revoked[token]);
uint256 balance = token.balanceOf(this);
uint256 vested = vestedAmount(token);
uint256 vesting = balance - vested;
token.transfer(owner, balance - vested);
revoked[token] = true;
token.transfer(owner, vesting);
Revoked();
}
@ -87,7 +93,7 @@ contract TokenVesting is Ownable {
function vestedAmount(ERC20Basic token) constant returns (uint256) {
if (now < cliff) {
return 0;
} else if (now >= start + duration) {
} else if (now >= start + duration || revoked[token]) {
return token.balanceOf(this);
} else {
uint256 currentBalance = token.balanceOf(this);