bug(`compiler`): the `ether` keyword breaks forge scripts when ran as `forge script Foo`

[zaqk]

Component

Forge

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

• Foundry
• Foundryup

What version of Foundry are you on?

forge 0.2.0 (27cabbd 2024-11-29T00:28:06.641192000Z)

What command(s) is the bug in?

forge script

Operating System

macOS (Apple Silicon)

Describe the bug

it seems the use of the ether keyword anywhere in a forge script contract will cause break forge script.

My code:

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.10;

import {Script} from "forge-std/Script.sol";

contract POC is Script {

    function run() external {
        uint256 a = .1 ether;
    }

}

The error:

▶ forge script POC
Error: No contract found with the name `POC`

a workaround is to just not use the keyword.

Workaround code:

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.10;

import {Script} from "forge-std/Script.sol";

contract POC is Script {

    function run() external {
        uint256 a = 1e17;
    }

}

console output

▶ forge script POC
[⠊] Compiling...
No files changed, compilation skipped
Script ran successfully.
Gas used: 21161

[zerosnacks]

Hi @zaqk thanks for the bug report

I'm able to reproduce it with the given setup and it appears to be a regression

[zerosnacks]

Update: appears to be related to a change introduced in #9346 or #8668 + https://github.com/foundry-rs/compilers

Fails: git checkout c13d42e850da353c0856a8b0d4123e13cc40045d
Works: git checkout e649e62f125244a3ef116be25dfdc81a2afbaf2a

cc @klkvr

[zerosnacks]

It is not exactly clear why the ether keyword (no inlining / dead code elimination?) is relevant here but running it as forge script script/POC.s.sol this works as expected

Re-rating to p-low given that there is a workaround and only occurs in some edge cases

[zaqk]

also worth noting i didnt run into the issue if i used 1 ether.