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IndexEntry

Struct IndexEntry 

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pub struct IndexEntry {
    pub oid: Vec<u8>,
    pub offset: u64,
    pub len: u64,
    pub obj_type: ObjType,
    pub uncompressed_size: u64,
    pub delta_base: u64,
}
Expand description

One object, as the caller hands it to ObjectIndex::build. Order is irrelevant — every implementation sorts by oid and derives ordinals itself.

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§oid: Vec<u8>

20 bytes (sha1) or 32 (sha256). All entries in one index must agree.

§offset: u64

Start of the object’s bytes within the archive.

§len: u64

Length of those bytes as stored (compressed / delta-encoded).

§obj_type: ObjType§uncompressed_size: u64

Inflated, post-delta-resolution size. The fact .idx and .rev together still cannot answer.

§delta_base: u64

objects.delta_base — the archive offset of the entry this one deltas against, 0 for none (PLAN §13).

An offset and not an ordinal, on purpose: it is in the same coordinate space as offset, so it survives a rebuild of this table in any order and a rebase of the pack is one addition (crate::pack_walk::PackWalk::rebased). 0 cannot collide with a real base because archive offset 0 is a pack’s PACK magic. A REF_DELTA records 0 until its oid is resolved to an offset — obj_type is what distinguishes that from no base.

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impl Clone for IndexEntry

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fn clone(&self) -> IndexEntry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for IndexEntry

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for IndexEntry

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impl PartialEq for IndexEntry

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fn eq(&self, other: &IndexEntry) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for IndexEntry

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.