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Removed unnececcary variable in macro implementation

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This commit is contained in:
vil'mo 2024-10-14 11:26:41 +07:00
parent 1d47074192
commit fed9cfb2fe
1 changed files with 8 additions and 9 deletions
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17
crates/bevy_ecs/macros/src/lib.rs
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@ -420,7 +420,6 @@ pub fn impl_data_set(_input: TokenStream) -> TokenStream {
let mut tokens = TokenStream::new();
let max_members = 8;
let data_types = get_idents(|i| format!("D{i}"), max_members);
let accesses = get_idents(|i| format!("access{i}"), max_members);
let mut member_fn_muts = Vec::new();
for (i, data) in data_types.iter().enumerate() {
let fn_name = Ident::new(&format!("d{i}"), Span::call_site());
@ -450,7 +449,6 @@ pub fn impl_data_set(_input: TokenStream) -> TokenStream {
for member_count in 1..=max_members {
let data = &data_types[0..member_count];
let access = &accesses[0..member_count];
let member_fn_mut = &member_fn_muts[0..member_count];
tokens.extend(TokenStream::from(quote! {
// SAFETY: each item in set is read only
@ -463,7 +461,7 @@ pub fn impl_data_set(_input: TokenStream) -> TokenStream {
// SAFETY:
// for each member of the set accessed by `fetch`, [`update_component_access`]
// - adds corresponding access to `filtered_access`
// - adds corresponding access to `access`
// - panics if it's access conflicts with access that has already been added before calling `update_component_access`
//
// If `fetch` mutably accesses a member of the set, it is impossible to access any other members.
@ -527,20 +525,21 @@ pub fn impl_data_set(_input: TokenStream) -> TokenStream {
}
}
fn update_component_access(state: &Self::State, filtered_access: &mut FilteredAccess<ComponentId>) {
fn update_component_access(state: &Self::State, access: &mut FilteredAccess<ComponentId>) {
let (#(#data,)*) = state;
#(
// Making sure each individual member of the set doesn't conflict with other query access.
// Panics if one of the members conflicts with previous access.
#data::update_component_access(#data, &mut filtered_access.clone());
#data::update_component_access(#data, &mut access.clone());
)*
let mut current_access;
#(
// Updating empty [`FilteredAccess`] and then extending passed filtered_access.
// Updating empty [`FilteredAccess`] and then extending passed access.
// This is done to avoid conflicts with other members of the set.
let mut #access = FilteredAccess::default();
#data::update_component_access(#data, &mut #access);
filtered_access.extend(&#access);
current_access = FilteredAccess::default();
#data::update_component_access(#data, &mut current_access);
access.extend(&current_access);
)*
}