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NoOffchainStorage

Enum NoOffchainStorage

pub enum NoOffchainStorage {}

Expand description

Special type that implements OffchainStorage.

This type can not be constructed and should only be used when passing None as offchain_db to OffchainWorkerOptions to make the compiler happy.

Trait Implementations§

impl Clone for NoOffchainStorage

fn clone(&self) -> NoOffchainStorage

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl OffchainStorage for NoOffchainStorage

fn set(&mut self, _: &[u8], _: &[u8], _: &[u8])

Persist a value in storage under given key and prefix.

fn remove(&mut self, _: &[u8], _: &[u8])

Clear a storage entry under given key and prefix.

fn get(&self, _: &[u8], _: &[u8]) -> Option<Vec<u8>>

Retrieve a value from storage under given key and prefix.

fn compare_and_set( &mut self, _: &[u8], _: &[u8], _: Option<&[u8]>, _: &[u8], ) -> bool

Replace the value in storage if given old_value matches the current one. Read more

Auto Trait Implementations§

impl Freeze for NoOffchainStorage

impl RefUnwindSafe for NoOffchainStorage

impl Send for NoOffchainStorage

impl Sync for NoOffchainStorage

impl Unpin for NoOffchainStorage

impl UnsafeUnpin for NoOffchainStorage

impl UnwindSafe for NoOffchainStorage

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Any for T
where T: Any,

fn into_any(self: Box<T>) -> Box<dyn Any>

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

fn type_name(&self) -> &'static str

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

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fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

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fn defensive_truncate_into(self) -> U

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

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fn from(t: T) -> T

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impl<T> Instrument for T

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

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

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

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

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

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_key(self) -> U

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Cast mutable reference.

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Get a mutable reference to the inner from the outer.

impl<T> Pointable for T

const ALIGN: usize

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

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unsafe fn drop(ptr: usize)

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

impl<T> Same for T

type Output = T

Should always be Self

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fn saturated_from<T>(t: T) -> Self
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Convert from a value of T into an equivalent instance of Self. Read more

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The resulting type after obtaining ownership.

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