Support conditionally compiled attributes (using #[cfg(...)])

[Oliboy50]

Would it be possible to support feature flipped attributes in the builder arguments such as:

pub struct MyStruct {
    attr1: String,
    attr2: String,
    #[cfg(feature = "my-feature")]
    attr3: String,
}

#[buildstructor::buildstructor]
impl MyStruct {
    #[builder]
    fn new(
        attr1: String, 
        attr2: String, 
        #[cfg(feature = "my-feature")] attr3: String,
    ) -> MyStruct {
        Self { 
            attr1, 
            attr2, 
            #[cfg(feature = "my-feature")] attr3,
        }
    }
}

Right now, I'm sad that this does not compile.

Whereas, if I remove the #[buildstructor::buildstructor] and #[builder] attributes, this compile fine.

You can test it yourself here: https://www.rustexplorer.com/b/ph7z4h

Do you think that it would be possible for the buildstructor proc macro to support this?

Note: It seems to work fine using the #[derive(Builder)] macro: https://www.rustexplorer.com/b/4yi2tr (but I don't use it myself).

[BrynCooke]

In theory possible.
At some point I need to get around to updating this crate to use syn2. This will remove a ton of code. But it's probably not on my immediate list of things to do.