@@ -1,98 +0,0 @@
-use convert_case::{Case, Casing};
-use proc_macro::TokenStream;
-use quote::quote;
-use syn::{DeriveInput, Lit, Meta, MetaList, MetaNameValue, NestedMeta, parse_macro_input};
-
-pub fn derive_into_component(input: TokenStream) -> TokenStream {
- let input = parse_macro_input!(input as DeriveInput);
- let mut scope_val = None;
- let mut description_val = None;
-
- for attr in &input.attrs {
- if attr.path.is_ident("component") {
- if let Ok(Meta::List(MetaList { nested, .. })) = attr.parse_meta() {
- for item in nested {
- if let NestedMeta::Meta(Meta::NameValue(MetaNameValue {
- path,
- lit: Lit::Str(s),
- ..
- })) = item
- {
- let ident = path.get_ident().map(|i| i.to_string()).unwrap_or_default();
- if ident == "scope" {
- scope_val = Some(s.value());
- } else if ident == "description" {
- description_val = Some(s.value());
- }
- }
- }
- }
- }
- }
-
- let name = &input.ident;
-
- let scope_impl = if let Some(s) = scope_val {
- let scope_str = s.clone();
- quote! {
- fn scope() -> Option<component::ComponentScope> {
- Some(component::ComponentScope::from(#scope_str))
- }
- }
- } else {
- quote! {
- fn scope() -> Option<component::ComponentScope> {
- None
- }
- }
- };
-
- let description_impl = if let Some(desc) = description_val {
- quote! {
- fn description() -> Option<&'static str> {
- Some(#desc)
- }
- }
- } else {
- quote! {}
- };
-
- let register_component_name = syn::Ident::new(
- &format!(
- "__register_component_{}",
- Casing::to_case(&name.to_string(), Case::Snake)
- ),
- name.span(),
- );
- let register_preview_name = syn::Ident::new(
- &format!(
- "__register_preview_{}",
- Casing::to_case(&name.to_string(), Case::Snake)
- ),
- name.span(),
- );
-
- let expanded = quote! {
- impl component::Component for #name {
- #scope_impl
-
- fn name() -> &'static str {
- stringify!(#name)
- }
-
- #description_impl
- }
-
- #[linkme::distributed_slice(component::__ALL_COMPONENTS)]
- fn #register_component_name() {
- component::register_component::<#name>();
- }
-
- #[linkme::distributed_slice(component::__ALL_PREVIEWS)]
- fn #register_preview_name() {
- component::register_preview::<#name>();
- }
- };
-
- expanded.into()
-}