xref: /openbmc/qemu/rust/qemu-api-macros/src/lib.rs (revision e90d4707)
1 // Copyright 2024, Linaro Limited
2 // Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
3 // SPDX-License-Identifier: GPL-2.0-or-later
4 
5 use proc_macro::TokenStream;
6 use quote::quote;
7 use syn::{parse_macro_input, DeriveInput};
8 
9 #[proc_macro_derive(Object)]
10 pub fn derive_object(input: TokenStream) -> TokenStream {
11     let input = parse_macro_input!(input as DeriveInput);
12     let name = input.ident;
13 
14     let expanded = quote! {
15         ::qemu_api::module_init! {
16             MODULE_INIT_QOM => unsafe {
17                 ::qemu_api::bindings::type_register_static(&<#name as ::qemu_api::definitions::ObjectImpl>::TYPE_INFO);
18             }
19         }
20     };
21 
22     TokenStream::from(expanded)
23 }
24