Struct b_tree::Range

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pub struct Range<V> { /* private fields */ }
Expand description

A range used to select a slice of a BTree

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impl<V> Range<V>

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pub fn with_bounds(prefix: Vec<V>, bounds: (Bound<V>, Bound<V>)) -> Self

Construct a new Range with the given prefix.

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pub fn with_range(prefix: Vec<V>, range: Bounds<V>) -> Self

Construct a new Range with the given prefix.

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pub fn from_prefix(prefix: Vec<V>) -> Self

Construct a new Range with only the given prefix.

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pub fn into_inner(self) -> (Vec<V>, (Bound<V>, Bound<V>))

Destructure this Range into a prefix and Bounds.

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pub fn has_bounds(&self) -> bool

Return false if this Range has only a prefix.

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pub fn is_default(&self) -> bool

Return true if this Range is empty.

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pub fn len(&self) -> usize

Return the number of columns specified by this Range.

Trait Implementations§

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impl<V: Clone> Clone for Range<V>

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fn clone(&self) -> Range<V>

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<K: Debug> Debug for Range<K>

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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<V> Default for Range<V>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<V, K: Into<Key<V>>> From<(K, Range<V>)> for Range<V>

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fn from(tuple: (K, Bounds<V>)) -> Self

Converts to this type from the input type.
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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<C> OverlapsValue<Vec<<C as Collate>::Value, Global>, Collator<C>> for Range<C::Value>where C: Collate, C::Value: Debug,

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fn overlaps_value(&self, key: &Key<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: &V, collator: &C) -> bool

Return true if this range contains value according to collator.
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impl<V: PartialEq> PartialEq<Range<V>> for Range<V>

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fn eq(&self, other: &Range<V>) -> bool

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<V: Eq> Eq for Range<V>

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impl<V> StructuralEq for Range<V>

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impl<V> StructuralPartialEq for Range<V>

Auto Trait Implementations§

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impl<V> RefUnwindSafe for Range<V>where V: RefUnwindSafe,

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impl<V> Send for Range<V>where V: Send,

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impl<V> Sync for Range<V>where V: Sync,

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impl<V> Unpin for Range<V>where V: Unpin,

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impl<V> UnwindSafe for Range<V>where V: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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> 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 Twhere 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) -> boolwhere T: TryCastFrom<Self>,

Returns true if self can be cast into the target type T.
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impl<T> ToOwned for Twhere 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 Twhere 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 Fwhere 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 Twhere 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 Twhere 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.