diff options
Diffstat (limited to 'ecs-macros/src/lib.rs')
| -rw-r--r-- | ecs-macros/src/lib.rs | 50 |
1 files changed, 10 insertions, 40 deletions
diff --git a/ecs-macros/src/lib.rs b/ecs-macros/src/lib.rs index 647469b..a6fdf28 100644 --- a/ecs-macros/src/lib.rs +++ b/ecs-macros/src/lib.rs @@ -6,7 +6,6 @@ use syn::spanned::Spanned; use syn::{ parse, Attribute, - GenericParam, Generics, Ident, Item, @@ -57,45 +56,17 @@ pub fn component_derive(input: TokenStream) -> TokenStream let ecs_path = find_engine_ecs_crate_path().unwrap_or_else(|| syn_path!(ecs)); - let (id_or_ids, get_id) = if !item.generics().params.is_empty() { - let id_lut_ident = - format_ident!("{}_ID_LUT", item_ident.to_string().to_uppercase()); + assert!( + item.generics().params.is_empty(), + "Generic types are not supported as components" + ); - let id_lut = quote! { - static #id_lut_ident: LazyLock<Mutex<HashMap<TypeId, Uid>>> = - LazyLock::new(|| Mutex::new(HashMap::new())); - }; + let id_var_ident = format_ident!("{}_ID", item_ident.to_string().to_uppercase()); - let generics = item.generics().params.iter().map(|param| match param { - GenericParam::Type(type_param) => type_param.ident.clone(), - GenericParam::Lifetime(_) => panic!("Lifetime generics are not supported"), - GenericParam::Const(_) => panic!("Const generics are not supported"), + let id_var = quote! { + static #id_var_ident: LazyLock<Uid> = LazyLock::new(|| { + Uid::new_unique(UidKind::Component) }); - - let get_id = quote! { - *#id_lut_ident - .try_lock() - .unwrap() - .entry(TypeId::of::<(#(#generics,)*)>()) - .or_insert_with(|| Uid::new_unique(UidKind::Component)) - }; - - (id_lut, get_id) - } else { - let id_lazylock_ident = - format_ident!("{}_ID", item_ident.to_string().to_uppercase()); - - let id_lazylock = quote! { - static #id_lazylock_ident: LazyLock<Uid> = LazyLock::new(|| { - Uid::new_unique(UidKind::Component) - }); - }; - - let get_id = quote! { - *#id_lazylock_ident - }; - - (id_lazylock, get_id) }; let mod_ident = format_ident!( @@ -107,7 +78,6 @@ pub fn component_derive(input: TokenStream) -> TokenStream mod #mod_ident { use ::std::any::{Any, TypeId}; use ::std::sync::{LazyLock, Mutex}; - use ::std::collections::HashMap; use #ecs_path::component::Component; use #ecs_path::component::{ @@ -119,7 +89,7 @@ pub fn component_derive(input: TokenStream) -> TokenStream use super::*; - #id_or_ids + #id_var impl #impl_generics Component for #item_ident #type_generics #where_clause @@ -129,7 +99,7 @@ pub fn component_derive(input: TokenStream) -> TokenStream fn id() -> Uid { - #get_id + *#id_var_ident } fn name(&self) -> &'static str |