Struct sp_trie::KeySpacedDB[−][src]

pub struct KeySpacedDB<'a, DB, H>(_, _, _);

HashDB implementation that append a encoded prefix (unique id bytes) in addition to the prefix of every key value.

Implementations

`impl<'a, DB, H> KeySpacedDB<'a, DB, H> where H: Hasher,` [src]

`pub fn new(db: &'a DB, ks: &'a [u8]) -> Self`[src]

instantiate new keyspaced db

Trait Implementations

`impl<'a, DB, H, T> HashDBRef<H, T> for KeySpacedDB<'a, DB, H> where DB: HashDBRef<H, T>, H: Hasher, T: From<&'static [u8]>,` [src]

`fn get(&self, key: &H::Out, prefix: Prefix<'_>) -> Option<T>`[src]

`fn contains(&self, key: &H::Out, prefix: Prefix<'_>) -> bool`[src]

Auto Trait Implementations

`impl<'a, DB, H> RefUnwindSafe for KeySpacedDB<'a, DB, H> where DB: RefUnwindSafe, H: RefUnwindSafe,`

`impl<'a, DB, H> Send for KeySpacedDB<'a, DB, H> where DB: Sync, H: Send,`

`impl<'a, DB, H> Sync for KeySpacedDB<'a, DB, H> where DB: Sync, H: Sync,`

`impl<'a, DB, H> Unpin for KeySpacedDB<'a, DB, H> where H: Unpin,`

`impl<'a, DB, H> UnwindSafe for KeySpacedDB<'a, DB, H> where DB: RefUnwindSafe, H: UnwindSafe,`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`pub fn type_id(&self) -> TypeId`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`pub fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`pub fn borrow_mut(&mut self) -> &mut T`[src]

`impl<T> From<T> for T`[src]

`pub fn from(t: T) -> T`[src]

`impl<T> Instrument for T`[src]

`pub fn instrument(self, span: Span) -> Instrumented<Self>`[src]

`pub fn in_current_span(self) -> Instrumented<Self>`[src]

`impl<T, U> Into for T where U: From<T>,` [src]

`pub fn into(self) -> U`[src]

`impl<T, Outer> IsWrappedBy<Outer> for T where T: From<Outer>, Outer: AsRef<T> + AsMut<T> + From<T>,` [src]

`pub fn from_ref(outer: &Outer) -> &T`[src]

Get a reference to the inner from the outer.

`pub fn from_mut(outer: &mut Outer) -> &mut T`[src]

Get a mutable reference to the inner from the outer.

`impl<T> Same<T> for T`[src]

`type Output = T`

Should always be Self

`impl<T, U> TryFrom for T where U: Into<T>,` [src]

`type Error = Infallible`

The type returned in the event of a conversion error.

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

`impl<T, U> TryInto for T where U: TryFrom<T>,` [src]

`type Error = >::Error`

The type returned in the event of a conversion error.

`pub fn try_into(self) -> Result<U, >::Error>`[src]

`impl<S, T> UncheckedInto<T> for S where T: UncheckedFrom<S>,` [src]

`pub fn unchecked_into(self) -> T`[src]

`impl<V, T> VZip<V> for T where V: MultiLane<T>,` [src]

`pub fn vzip(self) -> V`[src]

`impl<T> MaybeRefUnwindSafe for T where T: RefUnwindSafe,` [src]

Struct sp_trie::KeySpacedDB⎘[−][src]

Implementations

impl<'a, DB, H> KeySpacedDB<'a, DB, H> where H: Hasher, [src]

pub fn new(db: &'a DB, ks: &'a [u8]) -> Self[src]

Trait Implementations

impl<'a, DB, H, T> HashDBRef<H, T> for KeySpacedDB<'a, DB, H> where DB: HashDBRef<H, T>, H: Hasher, T: From<&'static [u8]>, [src]

fn get(&self, key: &H::Out, prefix: Prefix<'_>) -> Option<T>[src]

fn contains(&self, key: &H::Out, prefix: Prefix<'_>) -> bool[src]

Auto Trait Implementations

impl<'a, DB, H> RefUnwindSafe for KeySpacedDB<'a, DB, H> where DB: RefUnwindSafe, H: RefUnwindSafe,

impl<'a, DB, H> Send for KeySpacedDB<'a, DB, H> where DB: Sync, H: Send,

impl<'a, DB, H> Sync for KeySpacedDB<'a, DB, H> where DB: Sync, H: Sync,

impl<'a, DB, H> Unpin for KeySpacedDB<'a, DB, H> where H: Unpin,

impl<'a, DB, H> UnwindSafe for KeySpacedDB<'a, DB, H> where DB: RefUnwindSafe, H: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

impl<T> Borrow<T> for T where T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

impl<T> BorrowMut<T> for T where T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

impl<T> Instrument for T[src]

pub fn instrument(self, span: Span) -> Instrumented<Self>[src]

pub fn in_current_span(self) -> Instrumented<Self>[src]

impl<T, U> Into<U> for T where U: From<T>, [src]

pub fn into(self) -> U[src]

impl<T, Outer> IsWrappedBy<Outer> for T where T: From<Outer>, Outer: AsRef<T> + AsMut<T> + From<T>, [src]

pub fn from_ref(outer: &Outer) -> &T[src]

pub fn from_mut(outer: &mut Outer) -> &mut T[src]

impl<T> Same<T> for T[src]

type Output = T

impl<T, U> TryFrom<U> for T where U: Into<T>, [src]

type Error = Infallible

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

impl<T, U> TryInto<U> for T where U: TryFrom<T>, [src]

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

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

impl<S, T> UncheckedInto<T> for S where T: UncheckedFrom<S>, [src]

pub fn unchecked_into(self) -> T[src]

impl<V, T> VZip<V> for T where V: MultiLane<T>, [src]

pub fn vzip(self) -> V[src]

impl<T> MaybeRefUnwindSafe for T where T: RefUnwindSafe, [src]