use crate::data::Entry; const _TYPE_EXT1: u8 = 0;const COMMIT: u8 = 1;const TREE: u8 = 2;const BLOB: u8 = 3;const TAG: u8 = 4;const _TYPE_EXT2: u8 = 5;const OFS_DELTA: u8 = 6;const REF_DELTA: u8 = 7; /// A way to uniquely identify the location of an entry within a pack bundle#[derive(PartialEq, Eq, Debug, Hash, Ord, PartialOrd, Clone)]#[cfg_attr(feature = "serde1", derive(serde::Serialize, serde::Deserialize))]pub struct Location {    /// The id of the pack containing the object. It's unique within its frame of reference which is he owning object database.    pub pack_id: u32,    /// The size of the entry of disk so that the range of bytes of the entry is `pack_offset..pack_offset + entry_size`.    pub entry_size: usize,    /// The start of the entry in the pack identified by `pack_id`.    pub pack_offset: data::Offset,} impl Location {    /// Compute a range suitable for lookup in pack data using the [`entry_slice()`][crate::data::File::entry_slice()] method.    pub fn entry_range(&self, pack_offset: data::Offset) -> crate::data::EntryRange {        pack_offset..pack_offset + self.entry_size as u64    }} /// Accessimpl Entry {    /// Compute the pack offset to the base entry of the object represented by this entry.    pub fn base_pack_offset(&self, distance: u64) -> data::Offset {        let pack_offset = self.data_offset - self.header_size() as u64;        pack_offset.checked_sub(distance).expect("in-bound distance of deltas")    }    /// The pack offset at which this entry starts    pub fn pack_offset(&self) -> data::Offset {        self.data_offset - self.header_size() as u64    }    /// The amount of bytes used to describe this entry in the pack. The header starts at [`Self::pack_offset()`]    pub fn header_size(&self) -> usize {        self.header.size(self.decompressed_size)    }} mod decode; mod header;pub use header::Header; use crate::data;