Skip to main content

ReadOnlyMap

ccf_app

Struct ReadOnlyMap 

Source 
pub struct ReadOnlyMap<'a, 'ctx> { /* private fields */ }
Expand description

Read-only access to a raw-byte KV map, from ReadOnlyContext::map.

Implementations§

Source§

impl ReadOnlyMap<'_, '_>

Source

pub fn get(&mut self, key: &[u8]) -> BridgeResult<Option<Vec<u8>>>

Copy the value of key, or None if it is absent.

Source

pub fn has(&mut self, key: &[u8]) -> BridgeResult<bool>

Check whether key is present.

Auto Trait Implementations§

§

impl<'a, 'ctx> Freeze for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> RefUnwindSafe for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> !Send for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> !Sync for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> Unpin for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> UnsafeUnpin for ReadOnlyMap<'a, 'ctx>

§

impl<'a, 'ctx> !UnwindSafe for ReadOnlyMap<'a, 'ctx>

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.