Cast parsing int types as uint

[arjun-io]

Component

Cast

Have you ensured that all of these are up to date?

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (fc534d9 2022-05-23T00:04:42.704454Z)

What command(s) is the bug in?

cast call

Operating System

macOS (Apple Silicon)

Describe the bug

cast appears to be parsing int types as uint types. A minimal example:

pragma solidity ^0.8.0;

contract MyInt {
    constructor() {}

    function getInt() public pure returns(int256) {
        return -1;
    }
}

❯ cast call 0x50D75C1BC6a1cE35002C9f92D0AF4B3684aa6B74 "getInt()(int256)"
115792089237316195423570985008687907853269984665640564039457584007913129639935

[mds1]

Going to add on that in general ints seem to be poorly supported in foundry and ethers-rs too. Related:

• seth feature parity #29 (comment)
• Support I256 in format_units and parse_units gakonst/ethers-rs#842
• There's also some issues with them in forge, e.g. if you run RUST_LOG=foundry_evm=trace forge test, ints get logged with the unsigned value (same as shown here) instead of the two's complement representation

[distractedm1nd]

Related to rust-ethereum/ethabi#249