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fixed events in the token contract

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This commit is contained in:
The3D 2020-10-09 10:03:50 +02:00
parent cb6603f8a7
commit 3439198ec3
1 changed files with 32 additions and 25 deletions
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57
contracts/tokenization/StableDebtToken.sol
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@ -131,7 +131,8 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
_totalSupplyTimestamp = _timestamps[user] = uint40(block.timestamp); _totalSupplyTimestamp = _timestamps[user] = uint40(block.timestamp);
//calculates the updated average stable rate //calculates the updated average stable rate
_avgStableRate = vars.currentAvgStableRate _avgStableRate = vars
.currentAvgStableRate
.rayMul(vars.previousSupply.wadToRay()) .rayMul(vars.previousSupply.wadToRay())
.add(rate.rayMul(vars.amountInRay)) .add(rate.rayMul(vars.amountInRay))
.rayDiv(vars.nextSupply.wadToRay()); .rayDiv(vars.nextSupply.wadToRay());
@ -141,14 +142,7 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
// transfer event to track balances // transfer event to track balances
emit Transfer(address(0), user, amount); emit Transfer(address(0), user, amount);
emit MintDebt( emit Mint(user, amount, previousBalance, currentBalance, balanceIncrease, vars.newStableRate);
user,
amount,
previousBalance,
currentBalance,
balanceIncrease,
vars.newStableRate
);
} }
/** /**
@ -163,7 +157,6 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
uint256 balanceIncrease uint256 balanceIncrease
) = _calculateBalanceIncrease(user); ) = _calculateBalanceIncrease(user);
uint256 previousSupply = totalSupply(); uint256 previousSupply = totalSupply();
//since the total supply and each single user debt accrue separately, //since the total supply and each single user debt accrue separately,
@ -174,7 +167,7 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
_avgStableRate = 0; _avgStableRate = 0;
_totalSupply = 0; _totalSupply = 0;
} else { } else {
uint256 nextSupply = _totalSupply = previousSupply.sub(amount); uint256 nextSupply = _totalSupply = previousSupply.sub(amount);
_avgStableRate = _avgStableRate _avgStableRate = _avgStableRate
.rayMul(previousSupply.wadToRay()) .rayMul(previousSupply.wadToRay())
.sub(_usersData[user].rayMul(amount.wadToRay())) .sub(_usersData[user].rayMul(amount.wadToRay()))
@ -184,7 +177,6 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
if (amount == currentBalance) { if (amount == currentBalance) {
_usersData[user] = 0; _usersData[user] = 0;
_timestamps[user] = 0; _timestamps[user] = 0;
} else { } else {
//solium-disable-next-line //solium-disable-next-line
_timestamps[user] = uint40(block.timestamp); _timestamps[user] = uint40(block.timestamp);
@ -200,8 +192,8 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
// transfer event to track balances // transfer event to track balances
emit Transfer(user, address(0), amount); emit Transfer(user, address(0), amount);
emit BurnDebt(user, amount, previousBalance, currentBalance, balanceIncrease); emit Burn(user, amount, previousBalance, currentBalance, balanceIncrease);
} }
/** /**
@ -238,7 +230,17 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
/** /**
* @dev returns the principal and total supply, the average borrow rate and the last supply update timestamp * @dev returns the principal and total supply, the average borrow rate and the last supply update timestamp
**/ **/
function getSupplyData() public override view returns (uint256, uint256, uint256,uint40) { function getSupplyData()
public
override
view
returns (
uint256,
uint256,
uint256,
uint40
)
{
uint256 avgRate = _avgStableRate; uint256 avgRate = _avgStableRate;
return (super.totalSupply(), _calcTotalSupply(avgRate), avgRate, _totalSupplyTimestamp); return (super.totalSupply(), _calcTotalSupply(avgRate), avgRate, _totalSupplyTimestamp);
} }
@ -261,7 +263,7 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
/** /**
* @dev returns the timestamp at which the total supply was updated * @dev returns the timestamp at which the total supply was updated
**/ **/
function getTotalSupplyLastUpdated() public override view returns(uint40) { function getTotalSupplyLastUpdated() public override view returns (uint40) {
return _totalSupplyTimestamp; return _totalSupplyTimestamp;
} }
@ -274,13 +276,12 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
return super.balanceOf(user); return super.balanceOf(user);
} }
/** /**
* @dev calculates the total supply * @dev calculates the total supply
* @param avgRate the average rate at which calculate the total supply * @param avgRate the average rate at which calculate the total supply
* @return The debt balance of the user since the last burn/mint action * @return The debt balance of the user since the last burn/mint action
**/ **/
function _calcTotalSupply(uint256 avgRate) internal view returns(uint256) { function _calcTotalSupply(uint256 avgRate) internal view returns (uint256) {
uint256 principalSupply = super.totalSupply(); uint256 principalSupply = super.totalSupply();
if (principalSupply == 0) { if (principalSupply == 0) {
@ -295,14 +296,17 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
return principalSupply.rayMul(cumulatedInterest); return principalSupply.rayMul(cumulatedInterest);
} }
/** /**
* @dev mints stable debt tokens to an user * @dev mints stable debt tokens to an user
* @param account the account receiving the debt tokens * @param account the account receiving the debt tokens
* @param amount the amount being minted * @param amount the amount being minted
* @param oldTotalSupply the total supply before the minting event * @param oldTotalSupply the total supply before the minting event
**/ **/
function _mint(address account, uint256 amount, uint256 oldTotalSupply) internal { function _mint(
address account,
uint256 amount,
uint256 oldTotalSupply
) internal {
uint256 oldAccountBalance = _balances[account]; uint256 oldAccountBalance = _balances[account];
_balances[account] = oldAccountBalance.add(amount); _balances[account] = oldAccountBalance.add(amount);
@ -311,14 +315,17 @@ contract StableDebtToken is IStableDebtToken, DebtTokenBase {
} }
} }
/** /**
* @dev burns stable debt tokens of an user * @dev burns stable debt tokens of an user
* @param account the user getting his debt burned * @param account the user getting his debt burned
* @param amount the amount being burned * @param amount the amount being burned
* @param oldTotalSupply the total supply before the burning event * @param oldTotalSupply the total supply before the burning event
**/ **/
function _burn(address account, uint256 amount, uint256 oldTotalSupply) internal { function _burn(
address account,
uint256 amount,
uint256 oldTotalSupply
) internal {
uint256 oldAccountBalance = _balances[account]; uint256 oldAccountBalance = _balances[account];
_balances[account] = oldAccountBalance.sub(amount, 'ERC20: burn amount exceeds balance'); _balances[account] = oldAccountBalance.sub(amount, 'ERC20: burn amount exceeds balance');