Struct trie_db::NibbleVec

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pub struct NibbleVec { /* private fields */ }
Expand description

Owning, nibble-oriented byte vector. Counterpart to NibbleSlice. Nibbles are always left aligned, so making a NibbleVec from a NibbleSlice can get costy.

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impl NibbleVec

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pub fn new() -> Self

Make a new NibbleVec.

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pub fn len(&self) -> usize

Length of the NibbleVec.

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pub fn is_empty(&self) -> bool

Returns true if NibbleVec has zero length.

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pub fn at(&self, idx: usize) -> u8

Try to get the nibble at the given offset.

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pub fn push(&mut self, nibble: u8)

Push a nibble onto the NibbleVec. Ignores the high 4 bits.

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pub fn pop(&mut self) -> Option<u8>

Try to pop a nibble off the NibbleVec. Fails if len == 0.

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pub fn drop_lasts(&mut self, n: usize)

Remove then n last nibbles in a faster way than popping n times.

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pub fn as_prefix(&self) -> Prefix<'_>

Get Prefix representation of this NibbleVec.

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pub fn append(&mut self, v: &NibbleVec)

Append another NibbleVec. Can be slow (alignement of second vec).

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pub fn append_partial(&mut self, (start_byte, sl): Partial<'_>)

Append a Partial. Can be slow (alignement of partial).

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pub fn inner(&self) -> &[u8]

Get the underlying byte slice.

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pub fn clear(&mut self)

clear

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pub fn as_nibbleslice(&self) -> Option<NibbleSlice<'_>>

Try to treat this NibbleVec as a NibbleSlice. Works only if there is no padding.

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

Do we start with the same nibbles as the whole of them?

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pub fn starts_with_slice(&self, other: &NibbleSlice<'_>) -> bool

Same as Self::starts_with but using NibbleSlice.

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pub fn right_iter<'a>(&'a self) -> impl Iterator<Item = u8> + 'a

Return an iterator over Partial bytes representation.

Trait Implementations§

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impl Clone for NibbleVec

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fn clone(&self) -> NibbleVec

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 Debug for NibbleVec

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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 Default for NibbleVec

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl From<&NibbleVec> for NodeKey

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fn from(nibble: &NibbleVec) -> NodeKey

Converts to this type from the input type.
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impl<'a> From<NibbleSlice<'a>> for NibbleVec

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fn from(s: NibbleSlice<'a>) -> Self

Converts to this type from the input type.
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impl<'a> PartialEq<NibbleVec> for NibbleSlice<'a>

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fn eq(&self, other: &NibbleVec) -> 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 PartialEq for NibbleVec

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fn eq(&self, other: &NibbleVec) -> 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 Eq for NibbleVec

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impl StructuralPartialEq for NibbleVec

Auto Trait Implementations§

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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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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<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.
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impl<T> MaybeDebug for T
where T: Debug,