use proc_macro::TokenStream;
use quote::quote;
use syn::{DeriveInput, parse_macro_input};
#[proc_macro_derive(Encode)]
pub fn derive_encode(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
let name = input.ident;
let expanded = quote! {
impl Encode for #name {}
impl serde::Serialize for #name {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: serde::Serializer {
serde::Serialize::serialize(self, serializer)
}
}
};
TokenStream::from(expanded)
}
#[proc_macro_derive(Decode)]
pub fn derive_decode(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
let name = input.ident;
let expanded = quote! {
impl Decode for #name {}
impl<'de> serde::Deserialize<'de> for #name {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: serde::Deserializer<'de> {
serde::Deserialize::deserialize(deserializer)
}
}
};
TokenStream::from(expanded)
}