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23 lines
559 B
Rust
23 lines
559 B
Rust
use std::borrow::Cow;
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use roaring::RoaringBitmap;
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pub struct RoaringBitmapCodec;
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impl heed::BytesDecode<'_> for RoaringBitmapCodec {
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type DItem = RoaringBitmap;
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fn bytes_decode(bytes: &[u8]) -> Option<Self::DItem> {
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RoaringBitmap::deserialize_from(bytes).ok()
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}
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}
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impl heed::BytesEncode<'_> for RoaringBitmapCodec {
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type EItem = RoaringBitmap;
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fn bytes_encode(item: &Self::EItem) -> Option<Cow<[u8]>> {
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let mut bytes = Vec::new();
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item.serialize_into(&mut bytes).ok()?;
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Some(Cow::Owned(bytes))
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}
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}
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