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extern crate proc_macro; extern crate proc_macro2; extern crate proc_macro_util; extern crate syn; #[macro_use] extern crate quote; mod ast; mod de; mod util; #[proc_macro_derive(DeserializeVersioned, attributes(versions, serde))] pub fn derive_deserialize_versioned(input: proc_macro::TokenStream) -> proc_macro::TokenStream { let input = syn::parse::<syn::DeriveInput>(input).unwrap(); de::expand_derive_deserialize_versioned(&input) .unwrap_or_else(to_compile_errors) .into() } fn to_compile_errors(errors: Vec<syn::Error>) -> proc_macro2::TokenStream { let compile_errors = errors.iter().map(syn::Error::to_compile_error); quote!(#(#compile_errors)*) }