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Decode metadata buffer in one go

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This commit is contained in:
Oli Scherer 2025-02-14 10:58:40 +00:00
parent 905b1bf1cc
commit be2cd9540b
1 changed files with 1 additions and 4 deletions
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5
compiler/rustc_metadata/src/rmeta/encoder.rs
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@ -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