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ERC Conformance
Dan Guido edited this page Aug 26, 2020
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7 revisions
slither-check-erc
checks for ERC's conformance.
slither-check-erc
will check that:
- All the functions are present
- All the events are present
- Functions return the correct type
- Functions that must be view are view
- Events' parameters are correctly indexed
- The functions emit the events
- Derived contracts do not break the conformance
- ERC20
- ERC223
- ERC165
- ERC721
- ERC1820
- ERC777
slither-check-erc contract.sol ContractName
For example, on
contract ERC20{
event Transfer(address indexed,address,uint256);
function transfer(address, uint256) public{
emit Transfer(msg.sender,msg.sender,0);
}
}
The tool will report:
# Check ERC20
## Check functions
[ ] totalSupply() is missing
[ ] balanceOf(address) is missing
[✓] transfer(address,uint256) is present
[ ] transfer(address,uint256) -> () should return bool
[✓] Transfer(address,address,uint256) is emitted
[ ] transferFrom(address,address,uint256) is missing
[ ] approve(address,uint256) is missing
[ ] allowance(address,address) is missing
[ ] name() is missing (optional)
[ ] symbol() is missing (optional)
[ ] decimals() is missing (optional)
## Check events
[✓] Transfer(address,address,uint256) is present
[✓] parameter 0 is indexed
[ ] parameter 1 should be indexed
[ ] Approval(address,address,uint256) is missing