derive_render.rs

 1use proc_macro::TokenStream;
 2use quote::quote;
 3use syn::{DeriveInput, parse_macro_input};
 4
 5pub fn derive_render(input: TokenStream) -> TokenStream {
 6    let ast = parse_macro_input!(input as DeriveInput);
 7    let type_name = &ast.ident;
 8    let (impl_generics, type_generics, where_clause) = ast.generics.split_for_impl();
 9
10    let r#gen = quote! {
11        impl #impl_generics gpui::Render for #type_name #type_generics
12        #where_clause
13        {
14            fn render(&mut self, _window: &mut gpui::Window, _cx: &mut gpui::Context<Self>) -> impl gpui::Element {
15                gpui::Empty
16            }
17        }
18    };
19
20    r#gen.into()
21}