perf(ecs): replace component::Sequence::into_vec fn with into_array

1 files changed, 11 insertions, 5 deletions

diff --git a/ecs/src/component.rs b/ecs/src/component.rs
index f5aa0d1..b2ecf80 100644
--- a/ecs/src/component.rs
+++ b/ecs/src/component.rs
@@ -167,7 +167,9 @@ pub trait Sequence
     /// The number of components in this component sequence.
     const COUNT: usize;
 
-    fn into_vec(self) -> Vec<Box<dyn Component>>;
+    type Array: Array<Box<dyn Component>>;
+
+    fn into_array(self) -> Self::Array;
 
     fn metadata() -> impl Array<Metadata>;
 
@@ -277,9 +279,11 @@ macro_rules! inner {
             {
                 const COUNT: usize = $c + 1;
 
-                fn into_vec(self) -> Vec<Box<dyn Component>>
+                type Array = [Box<dyn Component>; $c + 1];
+
+                fn into_array(self) -> Self::Array
                 {
-                    Vec::from_iter([#(Box::new(self.I) as Box<dyn Component>,)*])
+                    [#(Box::new(self.I) as Box<dyn Component>,)*]
                 }
 
                 fn metadata() -> impl Array<Metadata>
@@ -356,11 +360,13 @@ seq!(C in 0..=16 {
 
 impl Sequence for ()
 {
+    type Array = [Box<dyn Component>; 0];
+
     const COUNT: usize = 0;
 
-    fn into_vec(self) -> Vec<Box<dyn Component>>
+    fn into_array(self) -> Self::Array
     {
-        Vec::new()
+        []
     }
 
     fn metadata() -> impl Array<Metadata>