diff options
| -rw-r--r-- | compiler/rustc_metadata/src/rmeta/encoder.rs | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 81fb918c604..d8a7c32a299 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -2272,10 +2272,7 @@ impl<D: Decoder> Decodable<D> for EncodedMetadata { let len = d.read_usize(); let mmap = if len > 0 { let mut mmap = MmapMut::map_anon(len).unwrap(); - for _ in 0..len { - (&mut mmap[..]).write_all(&[d.read_u8()]).unwrap(); - } - mmap.flush().unwrap(); + mmap.copy_from_slice(d.read_raw_bytes(len)); Some(mmap.make_read_only().unwrap()) } else { None |