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fix missing paths in ECS SystemParam derive macro v2 (#2550)

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This is an updated version of #1434 PR. I've encountered this macro problem while trying to use @woubuc's bevy-event-set crate.

Co-authored-by: Piotr Balcer <piotr@balcer.eu>
This commit is contained in:
Piotr Balcer 2021-08-11 01:32:58 +00:00
parent a023b687dd
commit b13472dae4
1 changed files with 3 additions and 3 deletions
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6
crates/bevy_ecs/macros/src/lib.rs
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@ -384,7 +384,7 @@ pub fn derive_system_param(input: TokenStream) -> TokenStream {
TokenStream::from(quote! {
impl #impl_generics #path::system::SystemParam for #struct_name#ty_generics #where_clause {
type Fetch = #fetch_struct_name <(#(<#field_types as SystemParam>::Fetch,)*), #punctuated_generic_idents>;
type Fetch = #fetch_struct_name <(#(<#field_types as #path::system::SystemParam>::Fetch,)*), #punctuated_generic_idents>;
}
#[doc(hidden)]
@ -415,7 +415,7 @@ pub fn derive_system_param(input: TokenStream) -> TokenStream {
}
}
impl #impl_generics #path::system::SystemParamFetch<'a> for #fetch_struct_name <(#(<#field_types as SystemParam>::Fetch,)*), #punctuated_generic_idents> {
impl #impl_generics #path::system::SystemParamFetch<'a> for #fetch_struct_name <(#(<#field_types as #path::system::SystemParam>::Fetch,)*), #punctuated_generic_idents> {
type Item = #struct_name#ty_generics;
unsafe fn get_param(
state: &'a mut Self,
@ -424,7 +424,7 @@ pub fn derive_system_param(input: TokenStream) -> TokenStream {
change_tick: u32,
) -> Self::Item {
#struct_name {
#(#fields: <<#field_types as SystemParam>::Fetch as #path::system::SystemParamFetch>::get_param(&mut state.state.#field_indices, system_meta, world, change_tick),)*
#(#fields: <<#field_types as #path::system::SystemParam>::Fetch as #path::system::SystemParamFetch>::get_param(&mut state.state.#field_indices, system_meta, world, change_tick),)*
#(#ignored_fields: <#ignored_field_types>::default(),)*
}
}