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//! This crate provides one core attribute procedural macro that is attached to the trait that you want to use as a service. //! See more details in `remote-trait-object` crate. #[macro_use] extern crate quote; mod helper; mod service; use proc_macro::TokenStream; use proc_macro2::TokenStream as TokenStream2; /// Those necessary components for the macro is specially exported in the remote-trait-object. /// The macro will always specify full path using this. fn create_env_path() -> syn::Path { syn::parse2(quote! {remote_trait_object::macro_env}).unwrap() } /// It generates all necessary helper `struct`s that makes the trait be able to be used as a service. /// /// It takes three arguments optionally /// - `serde_format = _` - Specify a type that implements `trait SerdeFormat`. The default is [serde_cbor](https://github.com/pyfisch/cbor) /// - `no_proxy` - If provided, the trait will be used only as a service object. /// - `no_skeleton` - If provided, the trait will be used only as a proxy object. /// /// There will be many new public `struct`s, but you don't have to know about them. #[proc_macro_attribute] pub fn service(args: TokenStream, input: TokenStream) -> TokenStream { match service::service(TokenStream2::from(args), TokenStream2::from(input)) { Ok(x) => TokenStream::from(x), Err(x) => TokenStream::from(x), } } /// This macro consumes the target trait, and will print the expanded code. Use this when you want to see the result of macro. #[proc_macro_attribute] pub fn service_debug(args: TokenStream, input: TokenStream) -> TokenStream { match service::service(TokenStream2::from(args), TokenStream2::from(input)) { Ok(x) => println!("{}", x), Err(x) => println!("{}", x), } TokenStream::new() }