pub struct OffchainOverlayedChanges(_);
Expand description

In-memory storage for offchain workers recoding changes for the actual offchain storage implementation.

Implementations§

source§

impl OffchainOverlayedChanges

source

pub fn into_iter( self ) -> impl Iterator<Item = ((Vec<u8>, Vec<u8>), OffchainOverlayedChange)>

Consume the offchain storage and iterate over all key value pairs.

source

pub fn iter( &self ) -> impl Iterator<Item = (&'_ (Vec<u8>, Vec<u8>), &'_ OffchainOverlayedChange)>

Iterate over all key value pairs by reference.

source

pub fn drain( &mut self ) -> impl Iterator<Item = ((Vec<u8>, Vec<u8>), OffchainOverlayedChange)>

Drain all elements of changeset.

source

pub fn remove(&mut self, prefix: &[u8], key: &[u8])

Remove a key and its associated value from the offchain database.

source

pub fn set(&mut self, prefix: &[u8], key: &[u8], value: &[u8])

Set the value associated with a key under a prefix to the value provided.

source

pub fn get(&self, prefix: &[u8], key: &[u8]) -> Option<OffchainOverlayedChange>

Obtain a associated value to the given key in storage with prefix.

source

pub fn overlay( &self ) -> &OverlayedMap<(Vec<u8>, Vec<u8>), OffchainOverlayedChange>

Reference to inner change set.

source

pub fn overlay_mut( &mut self ) -> &mut OverlayedMap<(Vec<u8>, Vec<u8>), OffchainOverlayedChange>

Mutable reference to inner change set.

Trait Implementations§

source§

impl Clone for OffchainOverlayedChanges

source§

fn clone(&self) -> OffchainOverlayedChanges

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
source§

impl Debug for OffchainOverlayedChanges

source§

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

Formats the value using the given formatter. Read more
source§

impl Default for OffchainOverlayedChanges

source§

fn default() -> OffchainOverlayedChanges

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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
source§

impl<T> DynClone for Twhere T: Clone,

source§

fn __clone_box(&self, _: Private) -> *mut ()

source§

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> 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.

source§

impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

source§

fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

source§

fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

§

impl<T> Pointable for T

§

const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> Same<T> for T

§

type Output = T

Should always be Self
source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

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

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

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

impl<T, U> TryFrom<U> 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<U>>::Error>

Performs the conversion.
source§

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

§

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
source§

impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,

source§

fn unchecked_into(self) -> T

The counterpart to unchecked_from.
§

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

§

fn vzip(self) -> V

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
§

impl<T> JsonSchemaMaybe for T

§

impl<T> MaybeDebug for Twhere T: Debug,

source§

impl<T> MaybeRefUnwindSafe for Twhere T: RefUnwindSafe,