Function pyclass_ident_and_attrs

crates/derive-impl/src/util.rs:607–631

(item: &syn::Item)

}

pub(crate) fn pyclass_ident_and_attrs(item: &syn::Item) -> Result<(&Ident, &[Attribute])> {
    use syn::Item::*;
    Ok(match item {
        Struct(syn::ItemStruct { ident, attrs, .. }) => (ident, attrs),
        Enum(syn::ItemEnum { ident, attrs, .. }) => (ident, attrs),
        Use(item_use) => (
            iter_use_idents(item_use, |ident, _is_unique| Ok(ident))?
                .into_iter()
                .exactly_one()
                .map_err(|_| {
                    err_span!(
                        item_use,
                        "#[pyclass] can only be on single name use statement",
                    )
                })?,
            &item_use.attrs,
        ),
        other => {
            bail_span!(
                other,
                "#[pyclass] can only be on a struct, enum or use declaration",
            )
        }
    })
}

pub(crate) fn pyexception_ident_and_attrs(item: &syn::Item) -> Result<(&Ident, &[Attribute])> {
    use syn::Item::*;