About Metis
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Based on the spirit of Optimistic Rollup, Metis is building an easy-to-use, highly scalable, low-cost, and fully functional Layer 2 framework (Metis Rollup) to fully support the application and business migration from Web 2.0 to Web 3.0. Its scalable protocol supports a wide range of use cases including yield farming, DEX trading, and powering the gig economy via DApps that offer cheap and fast micropayments.
Metis integrates the Decentralized Autonomous Company (DAC) framework within its Layer 2 infrastructure, a differentiating factor that makes it easy for any developers, builders, or community leaders to build their applications and communities. It also makes it easy to use pre-set tools to facilitate their development, manage collaboration, and enjoy the network effects of the world's largest decentralized finance ecosystem, without the costs and bottlenecks normally associated with Ethereum.
Metis’ goal is to make building dApps and DACs on its platform so easy to do, even total blockchain novices can make it happen in a matter of minutes.
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Laser Scorebeta Last Audit: 7 February 2024
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SafeMath.mul(uint256,uint256) (SafeMath.sol#73-85) is never used and should be removed
ERC20._burnFrom(address,uint256) (ERC20.sol#226-229) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#152-155) is never used and should be removed
SafeMath.div(uint256,uint256,string) (SafeMath.sol#115-122) is never used and should be removed
Context._msgData() (Context.sol#23-26) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#135-137) is never used and should be removed
SafeMath.div(uint256,uint256) (SafeMath.sol#98-100) is never used and should be removed
Remove unused functions.
Additional information: link
ERC20Detailed.constructor(string,string,uint8).symbol (ERC20Detailed.sol#18) shadows:
- ERC20Detailed.symbol() (ERC20Detailed.sol#35-37) (function)
ERC20Detailed.constructor(string,string,uint8).decimals (ERC20Detailed.sol#18) shadows:
- ERC20Detailed.decimals() (ERC20Detailed.sol#51-53) (function)
ERC20Detailed.constructor(string,string,uint8).name (ERC20Detailed.sol#18) shadows:
- ERC20Detailed.name() (ERC20Detailed.sol#27-29) (function)
Rename the local variables that shadow another component.
Additional information: link
Redundant expression "this (Context.sol#24)" inContext (Context.sol#13-27)
Remove redundant statements if they congest code but offer no value.
Additional information: link
decimals() should be declared external:
- ERC20Detailed.decimals() (ERC20Detailed.sol#51-53)
symbol() should be declared external:
- ERC20Detailed.symbol() (ERC20Detailed.sol#35-37)
name() should be declared external:
- ERC20Detailed.name() (ERC20Detailed.sol#27-29)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (ERC20.sol#98-102)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Ownable.sol#56-59)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (ERC20.sol#135-138)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (ERC20.sol#50-52)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (ERC20.sol#62-65)
owner() should be declared external:
- Ownable.owner() (Ownable.sol#30-32)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (ERC20.sol#116-119)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#65-67)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (ERC20.sol#81-84)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (ERC20.sol#70-72)
Use the external attribute for functions never called from the contract.
Additional information: link
Pragma version^0.5.0 (Ownable.sol#1) allows old versions
Pragma version^0.5.0 (Context.sol#1) allows old versions
Pragma version^0.5.0 (ERC20Detailed.sol#1) allows old versions
Pragma version^0.5.0 (ERC20.sol#1) allows old versions
Pragma version^0.5.0 (IERC20.sol#1) allows old versions
Pragma version^0.5.0 (Roles.sol#1) allows old versions
Pragma version^0.5.0 (MToken.sol#1) allows old versions
Pragma version^0.5.0 (SafeMath.sol#1) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.
Additional information: link
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