Trait HashedStorageCursor 

pub trait HashedStorageCursor: HashedCursor {
    // Required method
    fn is_storage_empty(&mut self) -> Result<bool, DatabaseError>;
}

Available on crate feature trie only.

The cursor for iterating over hashed storage entries.

Required Methods

fn is_storage_empty(&mut self) -> Result<bool, DatabaseError>

Returns true if there are no entries for a given key.

Implementations on Foreign Types

impl<'a, T> HashedStorageCursor for &'a mut T

where T: 'a + HashedStorageCursor + ?Sized, &'a mut T: HashedCursor,

fn is_storage_empty(&mut self) -> Result<bool, DatabaseError>

Implementors

impl HashedStorageCursor for NoopHashedStorageCursor

impl<C> HashedStorageCursor for DatabaseHashedStorageCursor<C>

where C: DbCursorRO<HashedStorages> + DbDupCursorRO<HashedStorages>,

impl<C> HashedStorageCursor for HashedPostStateStorageCursor<'_, C>

where C: HashedStorageCursor<Value = Uint<256, 4>>,