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ecs: fix resource borrow safety

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This commit is contained in:
Carter Anderson 2020-07-12 12:27:11 -07:00
parent 17f3860d12
commit 67f1bd66ce
1 changed files with 18 additions and 10 deletions
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28
crates/bevy_ecs/src/into_system.rs
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@ -1,7 +1,7 @@
use crate::{
resource_query::{FetchResource, ResourceQuery, UnsafeClone},
system::{System, SystemId, ThreadLocalExecution},
Commands, Resources,
Commands, Resources, Res,
};
use core::marker::PhantomData;
use hecs::{
@ -83,10 +83,14 @@ macro_rules! impl_into_foreach_system {
name: core::any::type_name::<Self>().into(),
id,
func: move |commands, world, resources| {
let ($($resource,)*) = resources.query_system::<($($resource,)*)>(id);
for ($($component,)*) in world.query::<($($component,)*)>().iter() {
fn_call!(self, ($($commands, commands)*), ($($resource),*), ($($component),*))
<<($($resource,)*) as ResourceQuery>::Fetch as FetchResource>::borrow(&resources.resource_archetypes);
{
let ($($resource,)*) = resources.query_system::<($($resource,)*)>(id);
for ($($component,)*) in world.query::<($($component,)*)>().iter() {
fn_call!(self, ($($commands, commands)*), ($($resource),*), ($($component),*))
}
}
<<($($resource,)*) as ResourceQuery>::Fetch as FetchResource>::release(&resources.resource_archetypes);
},
init_func: move |resources| {
<($($resource,)*)>::initialize(resources, Some(id));
@ -146,13 +150,17 @@ macro_rules! impl_into_query_system {
id,
name: core::any::type_name::<Self>().into(),
func: move |commands, world, resources| {
let ($($resource,)*) = resources.query_system::<($($resource,)*)>(id);
$(let $query = Query::<$query> {
world,
_marker: PhantomData::default(),
};)*
<<($($resource,)*) as ResourceQuery>::Fetch as FetchResource>::borrow(&resources.resource_archetypes);
{
let ($($resource,)*) = resources.query_system::<($($resource,)*)>(id);
$(let $query = Query::<$query> {
world,
_marker: PhantomData::default(),
};)*
fn_call!(self, ($($commands, commands)*), ($($resource),*), ($($query),*))
fn_call!(self, ($($commands, commands)*), ($($resource),*), ($($query),*))
}
<<($($resource,)*) as ResourceQuery>::Fetch as FetchResource>::release(&resources.resource_archetypes);
},
init_func: move |resources| {
<($($resource,)*)>::initialize(resources, Some(id));