From d947d2478a5c6dae5acbbe136585c89ec9ef41bf Mon Sep 17 00:00:00 2001
From: Benjamin Saunders <ben.e.saunders@gmail.com>
Date: Wed, 23 Sep 2020 18:43:46 -0700
Subject: [PATCH] Fix memory leak in archetype resizing

Though we properly drop the components themselves, the underlying
memory was not recovered.
---
 src/archetype.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/archetype.rs b/src/archetype.rs
index 472c41a3..1f8a9c7c 100644
--- a/src/archetype.rs
+++ b/src/archetype.rs
@@ -211,6 +211,13 @@ impl Archetype {
                         ty.layout.size() * old_count,
                     );
                 }
+                dealloc(
+                    (*self.data.get()).as_ptr().cast(),
+                    Layout::from_size_align_unchecked(
+                        old_data_size,
+                        self.types.first().map_or(1, |x| x.layout.align()),
+                    ),
+                );
             }
 
             self.data = UnsafeCell::new(new_data);