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, Global>

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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 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,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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 Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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impl<T> MaybeDebug for Twhere
T: Debug,

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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, Global>

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 Twhere
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

impl<T> MaybeDebug for Twhere
T: Debug,

impl<T> MaybeDebug for Twhere
T: Debug,

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, Global>

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 Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

impl<T> MaybeDebug for Twhere T: Debug,

impl<T> MaybeDebug for Twhere 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 Twhere
T: 'static + ?Sized,

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

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

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

impl<T> ToOwned for Twhere
T: Clone,

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

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

impl<T> MaybeDebug for Twhere
T: Debug,

impl<T> MaybeDebug for Twhere
T: Debug,