Struct memory_db::LegacyPrefixedKey

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pub struct LegacyPrefixedKey<H: KeyHasher>(_);

👎 Deprecated since 0.22.0

Expand description

Key function that concatenates prefix and hash. This is doing useless computation and should only be used for legacy purpose. It shall be remove in the future.

Trait Implementations

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impl<H: Clone + KeyHasher> Clone for LegacyPrefixedKey<H>

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fn clone(&self) -> LegacyPrefixedKey<H>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<H: Debug + KeyHasher> Debug for LegacyPrefixedKey<H>

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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<H: KeyHasher> KeyFunction<H> for LegacyPrefixedKey<H>

type Key = Vec<u8>

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fn key(hash: &H::Out, prefix: Prefix<'_>) -> Vec<u8>

Auto Trait Implementations

impl<H> RefUnwindSafe for LegacyPrefixedKey<H> where
H: RefUnwindSafe,

impl<H> Send for LegacyPrefixedKey<H>

impl<H> Sync for LegacyPrefixedKey<H>

impl<H> Unpin for LegacyPrefixedKey<H> where
H: Unpin,

impl<H> UnwindSafe for LegacyPrefixedKey<H> where
H: UnwindSafe,

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub 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,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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Struct memory_db::LegacyPrefixedKey

Trait Implementations

impl<H: Clone + KeyHasher> Clone for LegacyPrefixedKey<H>

fn clone(&self) -> LegacyPrefixedKey<H>

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

impl<H: Debug + KeyHasher> Debug for LegacyPrefixedKey<H>

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

impl<H: KeyHasher> KeyFunction<H> for LegacyPrefixedKey<H>

type Key = Vec<u8>

fn key(hash: &H::Out, prefix: Prefix<'_>) -> Vec<u8>

Auto Trait Implementations

impl<H> RefUnwindSafe for LegacyPrefixedKey<H> where H: RefUnwindSafe,

impl<H> Send for LegacyPrefixedKey<H>

impl<H> Sync for LegacyPrefixedKey<H>

impl<H> Unpin for LegacyPrefixedKey<H> where H: Unpin,

impl<H> UnwindSafe for LegacyPrefixedKey<H> where H: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> MaybeDebug for T where T: Debug,

impl<T> MaybeDebug for T where T: Debug,

impl<H> RefUnwindSafe for LegacyPrefixedKey<H> where
H: RefUnwindSafe,

impl<H> Unpin for LegacyPrefixedKey<H> where
H: Unpin,

impl<H> UnwindSafe for LegacyPrefixedKey<H> where
H: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

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

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

impl<T> MaybeDebug for T where
T: Debug,

impl<T> MaybeDebug for T where
T: Debug,