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NullLoader

nectar_primitives::store

Struct NullLoader 

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pub struct NullLoader<const BODY_SIZE: usize = DEFAULT_BODY_SIZE>;
Expand description

A no-op loader that always returns ChunkStoreError::NotFound.

Used by Node’s public convenience methods to satisfy the generic constraint without requiring callers to specify a store type.

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impl<const BODY_SIZE: usize> Debug for NullLoader<BODY_SIZE>

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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<const BODY_SIZE: usize> SyncChunkGet<BODY_SIZE> for NullLoader<BODY_SIZE>

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type Error = ChunkStoreError

Error type for get operations.
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fn get( &self, address: &ChunkAddress, ) -> Result<AnyChunk<BODY_SIZE>, Self::Error>

Get a chunk by address.

Auto Trait Implementations§

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impl<const BODY_SIZE: usize> Freeze for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> RefUnwindSafe for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> Send for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> Sync for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> Unpin for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> UnsafeUnpin for NullLoader<BODY_SIZE>

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impl<const BODY_SIZE: usize> UnwindSafe for NullLoader<BODY_SIZE>

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T, const BS: usize> ChunkGet<BS> for T
where T: SyncChunkGet<BS> + Send + Sync,

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type Error = <T as SyncChunkGet<BS>>::Error

Error type for get operations.
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async fn get( &self, address: &SwarmAddress, ) -> Result<AnyChunk<BS>, <T as ChunkGet<BS>>::Error>

Get a chunk by address.
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impl<T, const BODY_SIZE: usize> ChunkGetExt<BODY_SIZE> for T
where T: ChunkGet<BODY_SIZE>,

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fn joiner<R: JoinRef>( self, root: R, ) -> impl Future<Output = Result<GenericJoiner<Self, R::Mode, BODY_SIZE>>> + Send
where Self: Sized + Clone + Send + Sync + 'static,

Open a file for async reading.
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fn read_file<R: JoinRef>( self, root: R, ) -> impl Future<Output = Result<Vec<u8>>> + Send
where Self: Sized + Clone + Send + Sync + 'static,

Read entire file into memory asynchronously.
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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> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, const BODY_SIZE: usize> SyncChunkGetExt<BODY_SIZE> for T
where T: SyncChunkGet<BODY_SIZE>,

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fn joiner<R: JoinRef>( self, root: R, ) -> Result<GenericSyncJoiner<Self, R::Mode, BODY_SIZE>>
where Self: Clone + Send + Sync + Sized,

Open a file for reading. Returns a joiner implementing Read + Seek.
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fn read_file<R: JoinRef>(self, root: R) -> Result<Vec<u8>>
where Self: Clone + Send + Sync + Sized,

Read entire file into memory (like fs::read).
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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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

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