Trait TrieCursorFactory 

pub trait TrieCursorFactory {
    type AccountTrieCursor<'a>: TrieCursor
       where Self: 'a;
    type StorageTrieCursor<'a>: TrieCursor
       where Self: 'a;

    // Required methods
    fn account_trie_cursor(
        &self,
    ) -> Result<Self::AccountTrieCursor<'_>, DatabaseError>;
    fn storage_trie_cursor(
        &self,
        hashed_address: FixedBytes<32>,
    ) -> Result<Self::StorageTrieCursor<'_>, DatabaseError>;
}

Available on crate feature trie only.

Factory for creating trie cursors.

Required Associated Types

type AccountTrieCursor<'a>: TrieCursor where Self: 'a

The account trie cursor type.

type StorageTrieCursor<'a>: TrieCursor where Self: 'a

The storage trie cursor type.

Required Methods

fn account_trie_cursor( &self, ) -> Result<Self::AccountTrieCursor<'_>, DatabaseError>

Create an account trie cursor.

fn storage_trie_cursor( &self, hashed_address: FixedBytes<32>, ) -> Result<Self::StorageTrieCursor<'_>, DatabaseError>

Create a storage tries cursor.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<'b, T> TrieCursorFactory for &'b T

where T: 'b + TrieCursorFactory + ?Sized,

type AccountTrieCursor<'a> = <T as TrieCursorFactory>::AccountTrieCursor<'a> where &'b T: 'a

type StorageTrieCursor<'a> = <T as TrieCursorFactory>::StorageTrieCursor<'a> where &'b T: 'a

fn account_trie_cursor( &self, ) -> Result<<&'b T as TrieCursorFactory>::AccountTrieCursor<'_>, DatabaseError>

fn storage_trie_cursor( &self, hashed_address: FixedBytes<32>, ) -> Result<<&'b T as TrieCursorFactory>::StorageTrieCursor<'_>, DatabaseError>

Implementors

impl TrieCursorFactory for NoopTrieCursorFactory

type AccountTrieCursor<'a> = NoopAccountTrieCursor where NoopTrieCursorFactory: 'a

type StorageTrieCursor<'a> = NoopStorageTrieCursor where NoopTrieCursorFactory: 'a

impl<'overlay, CF, T> TrieCursorFactory for InMemoryTrieCursorFactory<CF, &'overlay T>

where CF: TrieCursorFactory + 'overlay, T: AsRef<TrieUpdatesSorted>,

type AccountTrieCursor<'cursor> = InMemoryTrieCursor<'overlay, <CF as TrieCursorFactory>::AccountTrieCursor<'cursor>> where InMemoryTrieCursorFactory<CF, &'overlay T>: 'cursor

type StorageTrieCursor<'cursor> = InMemoryTrieCursor<'overlay, <CF as TrieCursorFactory>::StorageTrieCursor<'cursor>> where InMemoryTrieCursorFactory<CF, &'overlay T>: 'cursor

impl<Provider> TrieCursorFactory for OverlayStateProvider<Provider>

where Provider: DBProvider,

type AccountTrieCursor<'a> = <InMemoryTrieCursorFactory<DatabaseTrieCursorFactory<&'a <Provider as DBProvider>::Tx>, &'a TrieUpdatesSorted> as TrieCursorFactory>::AccountTrieCursor<'a> where OverlayStateProvider<Provider>: 'a

type StorageTrieCursor<'a> = <InMemoryTrieCursorFactory<DatabaseTrieCursorFactory<&'a <Provider as DBProvider>::Tx>, &'a TrieUpdatesSorted> as TrieCursorFactory>::StorageTrieCursor<'a> where OverlayStateProvider<Provider>: 'a

impl<TX> TrieCursorFactory for DatabaseTrieCursorFactory<&TX>

where TX: DbTx,

type AccountTrieCursor<'a> = DatabaseAccountTrieCursor<<TX as DbTx>::Cursor<AccountsTrie>> where DatabaseTrieCursorFactory<&TX>: 'a

type StorageTrieCursor<'a> = DatabaseStorageTrieCursor<<TX as DbTx>::DupCursor<StoragesTrie>> where DatabaseTrieCursorFactory<&TX>: 'a