Enum sp_runtime::offchain::storage::MutateStorageError

source ·

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

source

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

source

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

Formats the value using the given formatter. Read more

source

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

source

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

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

source

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

source

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

source

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

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> CheckedConversion for T

source

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

source

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 Twhere
T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

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

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

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

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 Twhere
T: Any + Send + Sync,

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

source