solhint
payable-fallback
The {“extends”: “solhint:recommended”} property in a configuration file enables this rule.
Description
When fallback is not payable and there is no receive function you will not be able to receive currency.
Options
This rule accepts a string option of rule severity. Must be one of “error”, “warn”, “off”. Default to warn.
Example Config
{
"rules": {
"payable-fallback": "warn"
}
}
Notes
- Solhint allows this rule to automatically fix the code with
--fixoption - Instead of having a fallback function to receive native currency it is recommended to code a receive() function [here]
Examples
👍 Examples of correct code for this rule
Fallback is payable
function() public payable {}
Fallback is payable
fallback() external payable {}
👎 Examples of incorrect code for this rule
Fallback is not payable
function() {} function g() payable {}
Fallback is not payable
fallback() {} function g() payable {}
Version
This rule was introduced in Solhint 2.0.0-alpha.0