Update Entity and Relation::try_from

src/ecs/entity.rs

@@ -116,7 +116,12 @@ impl TryFrom<Component> for Entity {
     type Error = ();
     #[inline]
     fn try_from(component: Component) -> Result<Self, Self::Error> {
-        Self::from_bits(component.to_bits()).ok_or(())
+        if component.is_entity() {
+            // SAFETY: If component is valid and an entity, bitwise conversion is valid.
+            Ok(unsafe { Self::from_bits_unchecked(component.to_bits()) })
+        } else {
+            Err(())
+        }
     }
 }
 

src/ecs/relation.rs

@@ -98,7 +98,12 @@ impl TryFrom<Component> for Relation {
     type Error = ();
     #[inline]
     fn try_from(component: Component) -> Result<Self, Self::Error> {
-        Self::from_bits(component.to_bits()).ok_or(())
+        if component.is_relation() {
+            // SAFETY: If component is valid and a relation, bitwise conversion is valid.
+            Ok(unsafe { Self::from_bits_unchecked(component.to_bits()) })
+        } else {
+            Err(())
+        }
     }
 }