mirror of https://github.com/vacp2p/minime.git
Fix-lint (#10)
* fix lint issues * add require error msg * fix warnings with 'forge fmt' * fix grammar
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@ -2,7 +2,7 @@
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"extends": "solhint:recommended",
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"rules": {
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"code-complexity": ["error", 8],
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"compiler-version": ["error", ">=0.8.19"],
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"compiler-version": ["error", "^0.8.0"],
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"func-name-mixedcase": "off",
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"func-visibility": ["error", { "ignoreConstructors": true }],
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"max-line-length": ["error", 120],
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@ -5,7 +5,7 @@ contract Controlled {
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/// @notice The address of the controller is the only address that can call
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/// a function with this modifier
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modifier onlyController() {
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require(msg.sender == controller);
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require(msg.sender == controller, "Not authorized");
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_;
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}
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@ -26,8 +26,8 @@ pragma solidity ^0.8.0;
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/// affecting the original token
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/// @dev It is ERC20 compliant, but still needs to under go further testing.
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import "./Controlled.sol";
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import "./TokenController.sol";
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import { Controlled } from "./Controlled.sol";
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import { TokenController } from "./TokenController.sol";
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abstract contract ApproveAndCallFallBack {
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function receiveApproval(address from, uint256 _amount, address _token, bytes memory _data) public virtual;
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@ -66,13 +66,13 @@ contract MiniMeToken is Controlled {
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// `balances` is the map that tracks the balance of each address, in this
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// contract when the balance changes the block number that the change
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// occurred is also included in the map
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mapping(address => Checkpoint[]) balances;
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mapping(address account => Checkpoint[] history) private balances;
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// `allowed` tracks any extra transfer rights as in all ERC20 tokens
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mapping(address => mapping(address => uint256)) allowed;
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mapping(address account => mapping(address authorized => uint256 amount) allowance) private allowed;
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// Tracks the history of the `totalSupply` of the token
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Checkpoint[] totalSupplyHistory;
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Checkpoint[] private totalSupplyHistory;
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// Flag that determines if the token is transferable or not.
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bool public transfersEnabled;
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@ -125,7 +125,7 @@ contract MiniMeToken is Controlled {
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/// @param _amount The amount of tokens to be transferred
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/// @return success Whether the transfer was successful or not
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function transfer(address _to, uint256 _amount) public returns (bool success) {
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require(transfersEnabled);
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require(transfersEnabled, "Transfers are not enabled");
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doTransfer(msg.sender, _to, _amount);
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return true;
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}
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@ -142,10 +142,10 @@ contract MiniMeToken is Controlled {
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// controller of this contract, which in most situations should be
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// another open source smart contract or 0x0
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if (msg.sender != controller) {
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require(transfersEnabled);
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require(transfersEnabled, "Transfers are not enabled");
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// The standard ERC 20 transferFrom functionality
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require(allowed[_from][msg.sender] >= _amount);
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require(allowed[_from][msg.sender] >= _amount, "Not enough allowed balance");
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allowed[_from][msg.sender] -= _amount;
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}
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doTransfer(_from, _to, _amount);
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@ -163,20 +163,20 @@ contract MiniMeToken is Controlled {
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return;
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}
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require(parentSnapShotBlock < block.number);
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require(parentSnapShotBlock < block.number, "Parent snapshot not reached");
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// Do not allow transfer to 0x0 or the token contract itself
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require((_to != address(0)) && (_to != address(this)));
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require((_to != address(0)) && (_to != address(this)), "Invalid destination");
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// If the amount being transfered is more than the balance of the
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// account the transfer throws
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uint256 previousBalanceFrom = balanceOfAt(_from, block.number);
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require(previousBalanceFrom >= _amount);
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require(previousBalanceFrom >= _amount, "Not enough balance");
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// Alerts the token controller of the transfer
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if (isContract(controller)) {
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require(TokenController(controller).onTransfer(_from, _to, _amount));
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require(TokenController(controller).onTransfer(_from, _to, _amount), "Controller rejected transfer");
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}
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// First update the balance array with the new value for the address
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@ -186,7 +186,7 @@ contract MiniMeToken is Controlled {
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// Then update the balance array with the new value for the address
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// receiving the tokens
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uint256 previousBalanceTo = balanceOfAt(_to, block.number);
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require(previousBalanceTo + _amount >= previousBalanceTo); // Check for overflow
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require(previousBalanceTo + _amount >= previousBalanceTo, "Balance overflow"); // Check for overflow
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updateValueAtNow(balances[_to], previousBalanceTo + _amount);
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// An event to make the transfer easy to find on the blockchain
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@ -206,17 +206,19 @@ contract MiniMeToken is Controlled {
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/// @param _amount The amount of tokens to be approved for transfer
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/// @return success True if the approval was successful
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function approve(address _spender, uint256 _amount) public returns (bool success) {
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require(transfersEnabled);
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require(transfersEnabled, "Transfers are not enabled");
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// To change the approve amount you first have to reduce the addresses`
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// allowance to zero by calling `approve(_spender,0)` if it is not
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// already 0 to mitigate the race condition described here:
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// https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
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require((_amount == 0) || (allowed[msg.sender][_spender] == 0));
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require((_amount == 0) || (allowed[msg.sender][_spender] == 0), "First reset allowance");
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// Alerts the token controller of the approve function call
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if (isContract(controller)) {
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require(TokenController(controller).onApprove(msg.sender, _spender, _amount));
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require(
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TokenController(controller).onApprove(msg.sender, _spender, _amount), "Controller rejected allowance"
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);
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}
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allowed[msg.sender][_spender] = _amount;
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@ -241,7 +243,7 @@ contract MiniMeToken is Controlled {
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/// @param _amount The amount of tokens to be approved for transfer
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/// @return success True if the function call was successful
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function approveAndCall(address _spender, uint256 _amount, bytes memory _extraData) public returns (bool success) {
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require(approve(_spender, _amount));
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require(approve(_spender, _amount), "Approve failed");
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ApproveAndCallFallBack(_spender).receiveApproval(msg.sender, _amount, address(this), _extraData);
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@ -350,9 +352,9 @@ contract MiniMeToken is Controlled {
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/// @return True if the tokens are generated correctly
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function generateTokens(address _owner, uint256 _amount) public onlyController returns (bool) {
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uint256 curTotalSupply = totalSupply();
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require(curTotalSupply + _amount >= curTotalSupply, "OVERFLOW"); // Check for overflow
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require(curTotalSupply + _amount >= curTotalSupply, "Total supply overflow"); // Check for overflow
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uint256 previousBalanceTo = balanceOf(_owner);
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require(previousBalanceTo + _amount >= previousBalanceTo, "OVERFLOW 2"); // Check for overflow
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require(previousBalanceTo + _amount >= previousBalanceTo, "Balance overflow"); // Check for overflow
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updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
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updateValueAtNow(balances[_owner], previousBalanceTo + _amount);
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emit Transfer(address(0), _owner, _amount);
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@ -365,9 +367,9 @@ contract MiniMeToken is Controlled {
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/// @return True if the tokens are burned correctly
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function destroyTokens(address _owner, uint256 _amount) public onlyController returns (bool) {
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uint256 curTotalSupply = totalSupply();
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require(curTotalSupply >= _amount);
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require(curTotalSupply >= _amount, "Not enough supply");
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uint256 previousBalanceFrom = balanceOf(_owner);
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require(previousBalanceFrom >= _amount);
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require(previousBalanceFrom >= _amount, "Not enough balance");
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updateValueAtNow(totalSupplyHistory, curTotalSupply - _amount);
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updateValueAtNow(balances[_owner], previousBalanceFrom - _amount);
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emit Transfer(_owner, address(0), _amount);
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@ -402,17 +404,17 @@ contract MiniMeToken is Controlled {
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if (_block < checkpoints[0].fromBlock) return 0;
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// Binary search of the value in the array
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uint256 min = 0;
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uint256 sMin = 0;
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uint256 max = checkpoints.length - 1;
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while (max > min) {
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uint256 mid = (max + min + 1) / 2;
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while (max > sMin) {
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uint256 mid = (max + sMin + 1) / 2;
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if (checkpoints[mid].fromBlock <= _block) {
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min = mid;
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sMin = mid;
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} else {
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max = mid - 1;
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}
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}
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return checkpoints[min].value;
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return checkpoints[sMin].value;
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}
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/// @dev `updateValueAtNow` used to update the `balances` map and the
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@ -436,6 +438,7 @@ contract MiniMeToken is Controlled {
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function isContract(address _addr) internal view returns (bool) {
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uint256 size;
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if (_addr == address(0)) return false;
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// solhint-disable-next-line no-inline-assembly
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assembly {
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size := extcodesize(_addr)
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}
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@ -451,8 +454,8 @@ contract MiniMeToken is Controlled {
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/// set to 0, then the `proxyPayment` method is called which relays the
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/// ether and creates tokens as described in the token controller contract
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receive() external payable {
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require(isContract(controller));
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require(TokenController(controller).proxyPayment{ value: msg.value }(msg.sender));
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require(isContract(controller), "Controller not set");
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require(TokenController(controller).proxyPayment{ value: msg.value }(msg.sender), "Controller rejected payment");
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}
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//////////
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