Support for Solidity 0.8.22

[Janther]

Solidity 0.8.22 allowed event definitions at file level.

https://soliditylang.org/blog/2023/10/25/solidity-0.8.22-release-announcement/

[Janther]

Also now we can emit events from different contexts so EmitStatement must support MemberAccess as well.

interface I {
    event ForeignEvent();
}

contract C {
    event ForeignEvent();
}

event E();

contract D {
    function f() public {
        // Emitting a foreign event would trigger an internal error on 0.8.21
        emit I.ForeignEvent();
        emit C.ForeignEvent();
        
        // Emitting a file-level event. New feature.
        emit E();
    }
}

UPDATE:

This doesn't change the type because the MemberAccess is created within the FunctionCall's expression. I added a test to show this.

[jeasonstudio]

I use solidity official antlr4-grammer to implement a more comprehensive ast parser. You can consider giving it a try:
https://github.com/jeasonstudio/solidity-antlr4

[fvictorio]

The difference between this project and the official grammar is that this parser supports "all" solidity versions. That is, it supports a weird superset of the language, which is necessary for a lot of projects (e.g., prettier-solidity). But I'm glad to see a parser generated by the official one!

[jeasonstudio]

The difference between this project and the official grammar is that this parser supports "all" solidity versions. That is, it supports a weird superset of the language, which is necessary for a lot of projects (e.g., prettier-solidity). But I'm glad to see a parser generated by the official one!

Thanks for your awesome project, I understand what you means, it's not easy to support the syntax of all versions of Solidity. As Solidity becoming more stable, it might be a better choice to align the versions of the parser and Solidity grammar one by one. : )

[fvictorio]

My hope is that that will be provided by Slang soon enough.