From da04edff8c6b032d70fe58500c530d8b44cd04e1 Mon Sep 17 00:00:00 2001
From: Kerollmops <clement@meilisearch.com>
Date: Tue, 30 May 2023 14:49:32 +0200
Subject: [PATCH] Better use deserialize_unchecked_from to reduce the
 deserialization time

---
 .../src/heed_codec/roaring_bitmap/cbo_roaring_bitmap_codec.rs | 4 ++--
 milli/src/heed_codec/roaring_bitmap/roaring_bitmap_codec.rs   | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/milli/src/heed_codec/roaring_bitmap/cbo_roaring_bitmap_codec.rs b/milli/src/heed_codec/roaring_bitmap/cbo_roaring_bitmap_codec.rs
index 1bd132974..01ce523ba 100644
--- a/milli/src/heed_codec/roaring_bitmap/cbo_roaring_bitmap_codec.rs
+++ b/milli/src/heed_codec/roaring_bitmap/cbo_roaring_bitmap_codec.rs
@@ -49,7 +49,7 @@ impl CboRoaringBitmapCodec {
         } else {
             // Otherwise, it means we used the classic RoaringBitmapCodec and
             // that the header takes threshold integers.
-            RoaringBitmap::deserialize_from(bytes)
+            RoaringBitmap::deserialize_unchecked_from(bytes)
         }
     }
 
@@ -69,7 +69,7 @@ impl CboRoaringBitmapCodec {
                     vec.push(integer);
                 }
             } else {
-                roaring |= RoaringBitmap::deserialize_from(bytes.as_ref())?;
+                roaring |= RoaringBitmap::deserialize_unchecked_from(bytes.as_ref())?;
             }
         }
 
diff --git a/milli/src/heed_codec/roaring_bitmap/roaring_bitmap_codec.rs b/milli/src/heed_codec/roaring_bitmap/roaring_bitmap_codec.rs
index 8fae9b8fd..6cec0eb44 100644
--- a/milli/src/heed_codec/roaring_bitmap/roaring_bitmap_codec.rs
+++ b/milli/src/heed_codec/roaring_bitmap/roaring_bitmap_codec.rs
@@ -8,7 +8,7 @@ impl heed::BytesDecode<'_> for RoaringBitmapCodec {
     type DItem = RoaringBitmap;
 
     fn bytes_decode(bytes: &[u8]) -> Option<Self::DItem> {
-        RoaringBitmap::deserialize_from(bytes).ok()
+        RoaringBitmap::deserialize_unchecked_from(bytes).ok()
     }
 }