Struct exonum_merkledb::OwnedReadonlyFork

pub struct OwnedReadonlyFork(_);

Version of ReadonlyFork with a static lifetime. Can be produced from an Rc<Fork> using the AsReadonly trait.

Beware that producing an instance increases the reference counter of the underlying fork. If you need to obtain Fork from Rc<Fork> via Rc::try_unwrap, make sure that all OwnedReadonlyFork instances are dropped by this time.

Examples

let db = TemporaryDB::new();
let fork = Rc::new(db.fork());
fork.get_proof_list("list").extend(vec![1_u32, 2, 3]);
let ro_fork: OwnedReadonlyFork = fork.as_readonly();
let list = ro_fork.get_proof_list::<_, u32>("list");
assert_eq!(list.len(), 3);

Trait Implementations

impl AsReadonly for OwnedReadonlyFork

type Readonly = Self

Readonly version of the access.

fn as_readonly(&self) -> Self::Readonly

Performs the conversion.

impl Clone for OwnedReadonlyFork

fn clone(&self) -> OwnedReadonlyFork

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OwnedReadonlyFork

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

Formats the value using the given formatter.

impl<'_> From<OwnedReadonlyFork> for GenericRawAccess<'_>

fn from(ro_fork: OwnedReadonlyFork) -> Self

Performs the conversion.

impl RawAccess for OwnedReadonlyFork

type Changes = ChangesRef<'static>

Type of the changes() that will be applied to the database.

fn snapshot(&self) -> &dyn Snapshot

Reference to a Snapshot. This is the base relative to which the changes are defined.

fn changes(&self, address: &ResolvedAddress) -> Self::Changes

Returns changes related to specific address compared to the snapshot().