Struct sp_state_machine::StorageChanges

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pub struct StorageChanges<Transaction, H: Hasher> {
    pub main_storage_changes: StorageCollection,
    pub child_storage_changes: ChildStorageCollection,
    pub offchain_storage_changes: OffchainChangesCollection,
    pub transaction: Transaction,
    pub transaction_storage_root: H::Out,
    pub transaction_index_changes: Vec<IndexOperation>,
}

Expand description

A storage changes structure that can be generated by the data collected in OverlayedChanges.

This contains all the changes to the storage and transactions to apply theses changes to the backend.

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§main_storage_changes: StorageCollection

All changes to the main storage.

A value of None means that it was deleted.

§child_storage_changes: ChildStorageCollection

All changes to the child storages.

§offchain_storage_changes: OffchainChangesCollection

Offchain state changes to write to the offchain database.

§transaction: Transaction

A transaction for the backend that contains all changes from main_storage_changes and from child_storage_changes. offchain_storage_changes.

§transaction_storage_root: H::Out

The storage root after applying the transaction.

§transaction_index_changes: Vec<IndexOperation>

Changes to the transaction index,

Implementations§

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impl<Transaction, H: Hasher> StorageChanges<Transaction, H>

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pub fn into_inner( self ) -> (StorageCollection, ChildStorageCollection, OffchainChangesCollection, Transaction, H::Out, Vec<IndexOperation>)

Deconstruct into the inner values

Trait Implementations§

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impl<Transaction: Default, H: Hasher> Default for StorageChanges<Transaction, H>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<Transaction, H> RefUnwindSafe for StorageChanges<Transaction, H>where Transaction: RefUnwindSafe, <H as Hasher>::Out: RefUnwindSafe,

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impl<Transaction, H> Send for StorageChanges<Transaction, H>where Transaction: Send,

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impl<Transaction, H> Sync for StorageChanges<Transaction, H>where Transaction: Sync,

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impl<Transaction, H> Unpin for StorageChanges<Transaction, H>where Transaction: Unpin, <H as Hasher>::Out: Unpin,

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impl<Transaction, H> UnwindSafe for StorageChanges<Transaction, H>where Transaction: UnwindSafe, <H as Hasher>::Out: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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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

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impl<T> Downcast for Twhere T: Any,

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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.

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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.

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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.

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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.

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

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

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

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