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reserve unchecked for when guarded by explicit require (#2685)

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This commit is contained in:
Francisco Giordano
2021-05-20 11:40:18 -03:00
committed by GitHub
parent 7144ec8db4
commit 1b37c21da5
2 changed files with 2 additions and 2 deletions
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2
contracts/token/ERC20/ERC20.sol
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@ -267,8 +267,8 @@ contract ERC20 is Context, IERC20, IERC20Metadata {
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
}

2
contracts/token/ERC777/ERC777.sol
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@ -421,8 +421,8 @@ contract ERC777 is Context, IERC777, IERC20 {
require(fromBalance >= amount, "ERC777: burn amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
_totalSupply -= amount;
}
_totalSupply -= amount;
emit Burned(operator, from, amount, data, operatorData);
emit Transfer(from, address(0), amount);