Struct Collator

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pub struct Collator<C> { /* private fields */ }
Expand description

A collator used by a B+Tree

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impl<C> Collator<C>

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pub fn new(value: C) -> Self

Construct a new Collator for a B+Tree from an existing value collator.

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pub fn inner(&self) -> &C

Borrow the value collator used by this key Collator.

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impl<C: Clone> Clone for Collator<C>

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fn clone(&self) -> Collator<C>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<C: Collate> Collate for Collator<C>

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type Value = Vec<<C as Collate>::Value>

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fn cmp(&self, left: &Self::Value, right: &Self::Value) -> Ordering

Return the collation of the left value relative to the right value.
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impl<C: Collate> CollateRef<[<C as Collate>::Value]> for Collator<C>

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fn cmp_ref(&self, left: &[C::Value], right: &[C::Value]) -> Ordering

Return the collation of the left reference relative to the right reference.
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impl<C: Collate> CollateRef<SmallVec<[<C as Collate>::Value; 32]>> for Collator<C>

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fn cmp_ref(&self, left: &Key<C::Value>, right: &Key<C::Value>) -> Ordering

Return the collation of the left reference relative to the right reference.
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impl<C: Collate> OverlapsRange<Range<<C as Collate>::Value>, Collator<C>> for Range<C::Value>

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fn overlaps(&self, other: &Range<C::Value>, collator: &Collator<C>) -> Overlap

Check whether self overlaps other according to the given collator. Read more
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fn contains(&self, other: &T, collator: &C) -> bool

Check whether other lies entirely within self according to the given collator.
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fn contains_partial(&self, other: &T, collator: &C) -> bool

Check whether other lies partially within self according to the given collator.
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impl<BV, C> OverlapsValue<Vec<<C as Collate>::Value>, Collator<C>> for Range<BV>
where BV: Borrow<C::Value>, C: Collate, C::Value: Debug,

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fn overlaps_value(&self, key: &Vec<C::Value>, collator: &Collator<C>) -> Overlap

Return true if this range overlaps value according to collator.
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fn contains_value(&self, value: &T, collator: &C) -> bool

Return true if this range contains value according to collator.
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impl<C> PartialEq for Collator<C>
where C: Collate,

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<C: Copy> Copy for Collator<C>

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impl<C> Eq for Collator<C>
where C: Collate,

Auto Trait Implementations§

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impl<C> Freeze for Collator<C>
where C: Freeze,

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impl<C> RefUnwindSafe for Collator<C>
where C: RefUnwindSafe,

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impl<C> Send for Collator<C>
where C: Send,

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impl<C> Sync for Collator<C>
where C: Sync,

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impl<C> Unpin for Collator<C>
where C: Unpin,

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impl<C> UnwindSafe for Collator<C>
where C: UnwindSafe,

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<F, T> CastFrom<F> for T
where T: From<F>,

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fn cast_from(f: F) -> T

Cast an instance of T into an instance of Self.
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impl<T, F> CastInto<F> for T
where F: CastFrom<T>,

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fn cast_into(self) -> F

Cast an instance of Self into an instance of T.
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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<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<F> Match for F

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fn matches<T>(&self) -> bool
where T: TryCastFrom<Self>,

Returns true if self can be cast into the target type T.
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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<F, T> TryCastFrom<F> for T
where T: CastFrom<F>,

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fn can_cast_from(_: &F) -> bool

Test if value can be cast into Self.
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fn opt_cast_from(f: F) -> Option<T>

Returns Some(Self) if the source value can be cast into Self, otherwise None.
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fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err>
where OnErr: FnOnce(&T) -> Err,

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.
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impl<F, T> TryCastInto<T> for F
where T: TryCastFrom<F>,

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fn can_cast_into(&self) -> bool

Test if self can be cast into T.
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fn opt_cast_into(self) -> Option<T>

Returns Some(T) if self can be cast into T, otherwise None.
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fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err>
where OnErr: FnOnce(&Self) -> Err,

Returns Ok(T) if self can be cast into T, otherwise calls on_err.
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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.