Returning only contract and params (no func) when calling it in another method about solidity-parser-antlr HOT 9 CLOSED

The node for function MyContract {} has a name key with "MyContract" as value, whereas in constructor() {}, name is null.

Please try different sources and review the full generated AST. You should be able to get most of your answers from there.

from solidity-parser-antlr.

HI @obernardovieira, without looking at the whole AST it's hard to know what's going on. I think you should see a parent node FunctionCall with name onERC721Received that takes that function call as expression, but I could be wrong. Let me know if that helps.

from solidity-parser-antlr.

Hi @federicobond thanks for the quick answer, and thanks for this package btw.
You right, I was not clear.
So I put everything together and I realized I was doing one thing wrong, which was fDef.body.statements.forEach((fLink) => { because I actually don't need it, so I removed and updated parser.visit(fLink, { to parser.visit(fDef, { and it still catches IERC721Receiver again.

parser.visit(ast, {
    FunctionDefinition: (fDef) => {
        fDef.body.statements.forEach((fLink) => {
            parser.visit(fLink, {
                FunctionCall: (functionCallNode) => {
                    if (functionCallNode.expression.name === 'IERC721Receiver') {
                        console.log(functionCallNode);
                    }
                },
            });
        });
    },
});

What I want to do here it to map the function being called in a function's body. And ast is the complete file.

from solidity-parser-antlr.

Not sure I understand you correctly. Examining the full contract AST in the console should help you understand where to look for. If the piece you are looking for it's not there, please describe the AST output you are getting and what you would have expected to see.

from solidity-parser-antlr.

Hi, I can confirm, I miss one thing. Thanks.
On the other hand, the ConstructorDefinition returns nothing and the constructor is actually returned as FunctionDefinition with an "isConstructor" variable as true. Is it a known problem?

from solidity-parser-antlr.

Where did you see this ConstructorDefinition?

from solidity-parser-antlr.

Well, here https://github.com/solidityj/solidity-antlr4/blob/edce5c44d2d681e32bb23034d822bf0fcf1cb43e/Solidity.g4#L65
I assumed it would have the same names. Bad assumption I guess 😁

from solidity-parser-antlr.

Ahh right, AST names are different from ANTLR parser rules. You can have a function MyContract {} which would be a FunctionDefinition according to ANTLR but is another form of constructor.

from solidity-parser-antlr.

I know, but what about constructor() {}? How can I catch it?

from solidity-parser-antlr.