From fb36d5c8a74f94b1bc919acdd088b44048e14a8d Mon Sep 17 00:00:00 2001
From: Robert Kruszewski <github@robertk.io>
Date: Wed, 26 Jun 2024 17:50:26 +0100
Subject: [PATCH] Don't validate array flatbuffer message twice

---
 vortex-ipc/src/message_reader.rs | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/vortex-ipc/src/message_reader.rs b/vortex-ipc/src/message_reader.rs
index 27c1c2e05e..d4c36a9f7e 100644
--- a/vortex-ipc/src/message_reader.rs
+++ b/vortex-ipc/src/message_reader.rs
@@ -189,14 +189,11 @@ impl<R: VortexRead> MessageReader<R> {
             dtype,
             flatbuffer,
             |flatbuffer| {
-                root::<fb::Message>(flatbuffer)
-                    .map_err(VortexError::from)
-                    .map(|msg| msg.header_as_chunk().unwrap())
-                    .and_then(|chunk| {
-                        chunk
-                            .array()
-                            .ok_or_else(|| vortex_err!("Chunk missing Array"))
-                    })
+                unsafe { root_unchecked::<fb::Message>(flatbuffer) }
+                    .header_as_chunk()
+                    .unwrap()
+                    .array()
+                    .ok_or_else(|| vortex_err!("Chunk missing Array"))
             },
             buffers,
         )?;