Struct fdb_rl::cursor::cursor::CursorMap

pub struct CursorMap<T, C, F>where
    T: Send,
    C: Cursor<T>,{
    cursor: C,
    f: F,
    phantom: PhantomData<T>,
}

Cursor returned by Cursor::map method.

Fields

cursor: C

f: F

phantom: PhantomData<T>

Trait Implementations

impl<U, T, C, F, Fut> Cursor<U> for CursorMap<T, C, F>where U: Send, T: Send, C: Cursor<T> + Send, F: FnMut(T) -> Fut + Send, Fut: Future<Output = U> + Send,

async fn next(&mut self) -> CursorResult<U>

Asynchronously return the next result from this cursor.

fn collect(self) -> impl Future<Output = (Vec<T>, CursorError)> + Sendwhere Self: Sized + Send,

Drain the cursor pushing all emitted values into a collection.

fn filter<F, Fut>( self, f: F ) -> impl Future<Output = CursorFilter<T, Self, F>> + Sendwhere Self: Sized + Send, F: FnMut(&T) -> Fut + Send, Fut: Future<Output = bool>,

Filters the values produced by this cursor according to the provided predicate.

fn map<U, F, Fut>( self, f: F ) -> impl Future<Output = CursorMap<T, Self, F>> + Sendwhere U: Send, Self: Sized + Send, F: FnMut(T) -> Fut + Send, Fut: Future<Output = U>,

Map this cursor’s items to a different type, returning a new cursor of the resulting type.

impl<T, C, F: Debug> Debug for CursorMap<T, C, F>where T: Send + Debug, C: Cursor<T> + Debug,

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

Formats the value using the given formatter.

impl<T, C, F> Sealed for CursorMap<T, C, F>where T: Send, C: Cursor<T>,