Enum sp_runtime::offchain::storage::MutateStorageError

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pub enum MutateStorageError<T, E> {
    ConcurrentModification(T),
    ValueFunctionFailed(E),
}

Expand description

Possible errors when mutating a storage value.

Variants

`ConcurrentModification(T)`

The underlying db failed to update due to a concurrent modification. Contains the new value that was not stored.

`ValueFunctionFailed(E)`

The function given to us to create the value to be stored failed. May be used to signal that having looked at the existing value, they don’t want to mutate it.

Trait Implementations

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impl<T: Debug, E: Debug> Debug for MutateStorageError<T, E>

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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<T: PartialEq, E: PartialEq> PartialEq<MutateStorageError<T, E>> for MutateStorageError<T, E>

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fn eq(&self, other: &MutateStorageError<T, E>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &MutateStorageError<T, E>) -> bool

This method tests for !=.

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impl<T: Eq, E: Eq> Eq for MutateStorageError<T, E>

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impl<T, E> StructuralEq for MutateStorageError<T, E>

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impl<T, E> StructuralPartialEq for MutateStorageError<T, E>

Auto Trait Implementations

impl<T, E> RefUnwindSafe for MutateStorageError<T, E> where
E: RefUnwindSafe,
T: RefUnwindSafe,

impl<T, E> Send for MutateStorageError<T, E> where
E: Send,
T: Send,

impl<T, E> Sync for MutateStorageError<T, E> where
E: Sync,
T: Sync,

impl<T, E> Unpin for MutateStorageError<T, E> where
E: Unpin,
T: Unpin,

impl<T, E> UnwindSafe for MutateStorageError<T, E> where
E: UnwindSafe,
T: UnwindSafe,

Blanket Implementations

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

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pub 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,

const: unstable · source

pub 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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

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

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>`impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for T where
T: Any + Send + Sync,

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more