struct-patch-derive 0.10.4

A library that helps you implement partial updates for your structs.
Documentation 
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extern crate proc_macro;
mod filler;
mod patch;

use filler::Filler;
use patch::Patch;

#[cfg(feature = "op")]
pub(crate) enum Addable {
    Disable,
    AddTrait,
    AddFn(proc_macro2::Ident),
}

#[proc_macro_derive(Patch, attributes(patch))]
pub fn derive_patch(item: proc_macro::TokenStream) -> proc_macro::TokenStream {
    Patch::from_ast(syn::parse_macro_input!(item as syn::DeriveInput))
        .unwrap()
        .to_token_stream()
        .unwrap()
        .into()
}

#[proc_macro_derive(Filler, attributes(filler))]
pub fn derive_filler(item: proc_macro::TokenStream) -> proc_macro::TokenStream {
    Filler::from_ast(syn::parse_macro_input!(item as syn::DeriveInput))
        .unwrap()
        .to_token_stream()
        .unwrap()
        .into()
}