Struct StreamFingerprint

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pub struct StreamFingerprint {
    pub chunks: Vec<ChunkDigest>,
    pub total_bytes: u64,
}

Expand description

A file-level fingerprint derived from its content-defined chunk hashes.

The fingerprint is robust against small edits: only the chunks that actually changed will differ, so the Jaccard similarity between two near-identical files remains high.

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§chunks: Vec<ChunkDigest>

Ordered list of chunk digests.

§total_bytes: u64

Total bytes processed.

Implementations§

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impl StreamFingerprint

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pub fn chunk_count(&self) -> usize

Number of chunks in the fingerprint.

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pub fn chunk_set(&self) -> HashSet<u64>

Set of unique chunk hashes (for Jaccard computation).

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pub fn jaccard(&self, other: &Self) -> f64

Compute the Jaccard similarity between this fingerprint and another.

J(A,B) = |A ∩ B| / |A ∪ B|

Returns 1.0 when both fingerprints are identical, 0.0 when completely disjoint.

Trait Implementations§

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impl Clone for StreamFingerprint

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fn clone(&self) -> StreamFingerprint

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 StreamFingerprint

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for StreamFingerprint

Blanket Implementations§

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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<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<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 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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