Struct sp_core::offchain::OffchainDbExt

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pub struct OffchainDbExt(pub Box<dyn DbExternalities>);

Expand description

The offchain database extension that will be registered at the Substrate externalities.

Tuple Fields

0: Box<dyn DbExternalities>

Implementations

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impl OffchainDbExt

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pub fn new<O: DbExternalities + 'static>(offchain: O) -> Self

Create a new instance of OffchainDbExt.

Trait Implementations

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impl Deref for OffchainDbExt

type Target = Box<dyn DbExternalities>

The resulting type after dereferencing.

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fn deref(&self) -> &Self::Target

Dereferences the value.

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impl DerefMut for OffchainDbExt

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

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impl Extension for OffchainDbExt

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fn as_mut_any(&mut self) -> &mut dyn Any

Return the extension as &mut dyn Any. Read more

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impl From<Box<dyn DbExternalities + 'static, Global>> for OffchainDbExt

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fn from(inner: Box<dyn DbExternalities>) -> Self

Performs the conversion.

Auto Trait Implementations

impl !RefUnwindSafe for OffchainDbExt

impl Send for OffchainDbExt

impl !Sync for OffchainDbExt

impl Unpin for OffchainDbExt

impl !UnwindSafe for OffchainDbExt

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

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

pub 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

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

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