From f70d3816c12bc9c812e0e66949a2578a5aeaa7c7 Mon Sep 17 00:00:00 2001
From: prof64 <80442784+prof64@users.noreply.github.com>
Date: Thu, 5 Sep 2024 15:55:06 -0400
Subject: [PATCH] Add new_boxed fn to AlignedBytes

Due to a long unfixed issue in Rust (rust-lang/rust#53827), initializing
large arrays and boxing them causes a stack overflow.

To avoid this, the new_boxed fn allocates itself manually.
---
 src/data_type/aligned_bytes.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/data_type/aligned_bytes.rs b/src/data_type/aligned_bytes.rs
index dc43ad4..72abc18 100644
--- a/src/data_type/aligned_bytes.rs
+++ b/src/data_type/aligned_bytes.rs
@@ -29,6 +29,17 @@ where
             value: bytes,
         }
     }
+
+    /// Use this for large allocations better suited to the heap.
+    ///
+    /// This fn also deals with [the boxed array issue in Rust](https://github.com/rust-lang/rust/issues/53827).
+    pub fn new_boxed() -> Box<AlignedBytes<ALIGN, N>> {
+        let layout = std::alloc::Layout::new::<AlignedBytes<ALIGN, N>>();
+        unsafe {
+            let ptr = std::alloc::alloc(layout) as *mut AlignedBytes<ALIGN, N>;
+            Box::from_raw(ptr)
+        }
+    }
 }
 
 impl<const ALIGN: usize, const N: usize> Default for AlignedBytes<ALIGN, N>