pub struct ReadonlyTypedStorage<'a, S: ReadonlyStorage, T> where
T: Serialize + DeserializeOwned, { /* private fields */ }Implementations
sourceimpl<'a, S: ReadonlyStorage, T> ReadonlyTypedStorage<'a, S, T> where
T: Serialize + DeserializeOwned,
impl<'a, S: ReadonlyStorage, T> ReadonlyTypedStorage<'a, S, T> where
T: Serialize + DeserializeOwned,
pub fn new(storage: &'a S) -> Self
sourcepub fn load(&self, key: &[u8]) -> StdResult<T>
pub fn load(&self, key: &[u8]) -> StdResult<T>
load will return an error if no data is set at the given key, or on parse error
sourcepub fn may_load(&self, key: &[u8]) -> StdResult<Option<T>>
pub fn may_load(&self, key: &[u8]) -> StdResult<Option<T>>
may_load will parse the data stored at the key if present, returns Ok(None) if no data there. returns an error on issues parsing
pub fn range<'b>(
&'b self,
start: Option<&[u8]>,
end: Option<&[u8]>,
order: Order
) -> Box<dyn Iterator<Item = StdResult<KV<T>>> + 'b>
Auto Trait Implementations
impl<'a, S, T> RefUnwindSafe for ReadonlyTypedStorage<'a, S, T> where
S: RefUnwindSafe,
T: RefUnwindSafe,
impl<'a, S, T> Send for ReadonlyTypedStorage<'a, S, T> where
S: Sync,
T: Sync,
impl<'a, S, T> Sync for ReadonlyTypedStorage<'a, S, T> where
S: Sync,
T: Sync,
impl<'a, S, T> Unpin for ReadonlyTypedStorage<'a, S, T>
impl<'a, S, T> UnwindSafe for ReadonlyTypedStorage<'a, S, T> where
S: RefUnwindSafe,
T: RefUnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more