auto_enums_derive 0.3.3

This library provides an attribute macro like a wrapper of `#[derive]`, implementing the supported traits and passing unsupported traits to `#[derive]`.
Documentation 
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use proc_macro2::TokenStream;
use quote::quote;

use crate::utils::*;

pub(crate) const NAME: &[&str] = &["rayon::IndexedParallelIterator"];

pub(crate) fn derive(data: &Data) -> Result<TokenStream> {
    let iter = quote!(::rayon::iter);

    derive_trait!(
        data,
        Some(ident_call_site("Item")),
        parse_quote!(#iter::IndexedParallelIterator)?,
        parse_quote! {
            trait IndexedParallelIterator: #iter::ParallelIterator {
                #[inline]
                fn drive<__C>(self, consumer: __C) -> __C::Result
                where
                    __C: #iter::plumbing::Consumer<Self::Item>;
                #[inline]
                fn len(&self) -> usize;
                #[inline]
                fn with_producer<__CB>(self, callback: __CB) -> __CB::Output
                where
                    __CB: #iter::plumbing::ProducerCallback<Self::Item>;
            }
        }?,
    )
}