The issue

When i'm trying decode ((uint256,uint256,address,address,(address,uint256,bytes)[],bytes32,bytes),(uint256,(address,uint256),(address,uint256),address,bytes,uint256)) using the ethabi decode command i get error.

That below its the same abi getting decoded correctly

here the test code used

So the code work how expected when we defined in the code the structure to be decoded.

But when we use the command below:

I put some logs to understand what happening, but the error its that.

Error: Invalid name: (address,uint256,bytes)[],bytes32,bytes) nested

Looks like the parser can't understand the array of tuples inside the tuples correctly, so miss the count of parenteses and brackets.

To reproduce

cargo run -- decode params -t '((uint256,uint256,address,address,(address,uint256,bytes)[],bytes32,bytes),(uint256,(address,uint256),(address,uint256),address,bytes,uint256))' 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

test code

Put that in decoder.rs



#[test]
    fn decode_our_test() {
        let encoded = hex!(
            "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"
        );

        let param = 
            // ParamType::Tuple(vec![
            ParamType::Tuple(vec![
            ParamType::Tuple(vec![
                ParamType::Uint(256),
                ParamType::Uint(256),
                ParamType::Address,
                ParamType::Address,
                ParamType::Array(Box::new(ParamType::Tuple(vec![
                    ParamType::Address,
                    ParamType::Uint(256),
                    ParamType::Bytes,
                ]))),
                ParamType::FixedBytes(32),
                ParamType::Bytes,
            ]),
            ParamType::Tuple(vec![
                ParamType::Uint(256),
                ParamType::Tuple(vec![ParamType::Address, ParamType::Uint(256)]),
                ParamType::Tuple(vec![ParamType::Address, ParamType::Uint(256)]),
                ParamType::Address,
                ParamType::Bytes,
                ParamType::Uint(256),
            ]),
        // ])
        ]);

        let abi = Writer::write(&param);

        println!("abi: {}",abi);
        let decoded = decode(
            &[param],
            &encoded,
        )
        .unwrap();

        println!("decoded: {:#?}", decoded);
        let tu = decoded[0].to_owned();

        match tu {
            Token::Tuple(tuple)=> println!("{:?}",tuple),
            _ => ()
        }
    } ```

rust-ethereum / ethabi

Decode work but Parser not #290