derive_into_element.rs

 1use proc_macro::TokenStream;
 2use quote::quote;
 3use syn::{parse_macro_input, DeriveInput};
 4
 5pub fn derive_into_element(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 gen = quote! {
11        impl #impl_generics gpui::IntoElement for #type_name #type_generics
12        #where_clause
13        {
14            type Element = gpui::Component<Self>;
15
16            fn element_id(&self) -> Option<ElementId> {
17                None
18            }
19
20            fn into_element(self) -> Self::Element {
21                gpui::Component::new(self)
22            }
23        }
24    };
25
26    gen.into()
27}