Trait lib2::scroll_traits::Iterator

pub trait Iterator {
    type Item;

    // Required methods
    fn next(&mut self) -> Option<Self::Item>;
    fn size_hint(&self) -> (usize, Option<usize>);
    fn count(self) -> usize
       where Self: Sized;
    fn last(self) -> Option<Self::Item>
       where Self: Sized;
    fn advance_by(&mut self, n: usize) -> Result<(), usize>;
    fn nth(&mut self, n: usize) -> Option<Self::Item>;
    fn step_by(self, step: usize) -> StepBy<Self>
       where Self: Sized;
    fn chain<U>(self, other: U) -> Chain<Self, U::IntoIter>
       where Self: Sized,
             U: IntoIterator<Item = Self::Item>;
    fn zip<U>(self, other: U) -> Zip<Self, U::IntoIter>
       where Self: Sized,
             U: IntoIterator;
    fn intersperse(self, separator: Self::Item) -> Intersperse<Self>
       where Self: Sized,
             Self::Item: Clone;
    fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>
       where Self: Sized,
             G: FnMut() -> Self::Item;
    fn map<B, F>(self, f: F) -> Map<Self, F>
       where Self: Sized,
             F: FnMut(Self::Item) -> B;
    fn for_each<F>(self, f: F)
       where Self: Sized,
             F: FnMut(Self::Item);
    fn filter<P>(self, predicate: P) -> Filter<Self, P>
       where Self: Sized,
             P: FnMut(&Self::Item) -> bool;
    fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>
       where Self: Sized,
             F: FnMut(Self::Item) -> Option<B>;
    fn enumerate(self) -> Enumerate<Self>
       where Self: Sized;
    fn peekable(self) -> Peekable<Self>
       where Self: Sized;
    fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
       where Self: Sized,
             P: FnMut(&Self::Item) -> bool;
    fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
       where Self: Sized,
             P: FnMut(&Self::Item) -> bool;
    fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>
       where Self: Sized,
             P: FnMut(Self::Item) -> Option<B>;
    fn skip(self, n: usize) -> Skip<Self>
       where Self: Sized;
    fn take(self, n: usize) -> Take<Self>
       where Self: Sized;
    fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
       where Self: Sized,
             F: FnMut(&mut St, Self::Item) -> Option<B>;
    fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
       where Self: Sized,
             U: IntoIterator,
             F: FnMut(Self::Item) -> U;
    fn flatten(self) -> Flatten<Self>
       where Self: Sized,
             Self::Item: IntoIterator;
    fn fuse(self) -> Fuse<Self>
       where Self: Sized;
    fn inspect<F>(self, f: F) -> Inspect<Self, F>
       where Self: Sized,
             F: FnMut(&Self::Item);
    fn by_ref(&mut self) -> &mut Self
       where Self: Sized;
    fn collect<B: FromIterator<Self::Item>>(self) -> B
       where Self: Sized;
    fn collect_into<E: Extend<Self::Item>>(self, collection: &mut E) -> &mut E
       where Self: Sized;
    fn partition<B, F>(self, f: F) -> (B, B)
       where Self: Sized,
             B: Default + Extend<Self::Item>,
             F: FnMut(&Self::Item) -> bool;
    fn partition_in_place<'a, T: 'a, P>(self, predicate: P) -> usize
       where Self: Sized + DoubleEndedIterator<Item = &'a mut T>,
             P: FnMut(&T) -> bool;
    fn is_partitioned<P>(self, predicate: P) -> bool
       where Self: Sized,
             P: FnMut(Self::Item) -> bool;
    fn fold<B, F>(self, init: B, f: F) -> B
       where Self: Sized,
             F: FnMut(B, Self::Item) -> B;
    fn reduce<F>(self, f: F) -> Option<Self::Item>
       where Self: Sized,
             F: FnMut(Self::Item, Self::Item) -> Self::Item;
    fn all<F>(&mut self, f: F) -> bool
       where Self: Sized,
             F: FnMut(Self::Item) -> bool;
    fn any<F>(&mut self, f: F) -> bool
       where Self: Sized,
             F: FnMut(Self::Item) -> bool;
    fn find<P>(&mut self, predicate: P) -> Option<Self::Item>
       where Self: Sized,
             P: FnMut(&Self::Item) -> bool;
    fn find_map<B, F>(&mut self, f: F) -> Option<B>
       where Self: Sized,
             F: FnMut(Self::Item) -> Option<B>;
    fn position<P>(&mut self, predicate: P) -> Option<usize>
       where Self: Sized,
             P: FnMut(Self::Item) -> bool;
    fn this_is_a_method_with_a_long_name_returning_something() -> String;
}

Shamelessly (partially) copied from std::iter::Iterator. It allows us to check that the scroll is working as expected on “hidden” items.

Required Associated Types

type Item

Required Methods

fn next(&mut self) -> Option<Self::Item>

fn size_hint(&self) -> (usize, Option<usize>)

fn count(self) -> usize

where Self: Sized,

fn last(self) -> Option<Self::Item>

where Self: Sized,

fn advance_by(&mut self, n: usize) -> Result<(), usize>

fn nth(&mut self, n: usize) -> Option<Self::Item>

fn step_by(self, step: usize) -> StepBy<Self>

where Self: Sized,

fn chain<U>(self, other: U) -> Chain<Self, U::IntoIter>

where Self: Sized, U: IntoIterator<Item = Self::Item>,

fn zip<U>(self, other: U) -> Zip<Self, U::IntoIter>

where Self: Sized, U: IntoIterator,

fn intersperse(self, separator: Self::Item) -> Intersperse<Self>

where Self: Sized, Self::Item: Clone,

fn intersperse_with<G>(self, separator: G) -> IntersperseWith<Self, G>

where Self: Sized, G: FnMut() -> Self::Item,

fn map<B, F>(self, f: F) -> Map<Self, F>

where Self: Sized, F: FnMut(Self::Item) -> B,

fn for_each<F>(self, f: F)

where Self: Sized, F: FnMut(Self::Item),

fn filter<P>(self, predicate: P) -> Filter<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>

where Self: Sized, F: FnMut(Self::Item) -> Option<B>,

fn enumerate(self) -> Enumerate<Self>

where Self: Sized,

fn peekable(self) -> Peekable<Self>

where Self: Sized,

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

fn map_while<B, P>(self, predicate: P) -> MapWhile<Self, P>

where Self: Sized, P: FnMut(Self::Item) -> Option<B>,

fn skip(self, n: usize) -> Skip<Self>

where Self: Sized,

fn take(self, n: usize) -> Take<Self>

where Self: Sized,

fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>

where Self: Sized, F: FnMut(&mut St, Self::Item) -> Option<B>,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>

where Self: Sized, U: IntoIterator, F: FnMut(Self::Item) -> U,

fn flatten(self) -> Flatten<Self>

where Self: Sized, Self::Item: IntoIterator,

fn fuse(self) -> Fuse<Self>

where Self: Sized,

fn inspect<F>(self, f: F) -> Inspect<Self, F>

where Self: Sized, F: FnMut(&Self::Item),

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

fn collect<B: FromIterator<Self::Item>>(self) -> B

where Self: Sized,

fn collect_into<E: Extend<Self::Item>>(self, collection: &mut E) -> &mut E

where Self: Sized,

fn partition<B, F>(self, f: F) -> (B, B)

where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool,

fn partition_in_place<'a, T: 'a, P>(self, predicate: P) -> usize

where Self: Sized + DoubleEndedIterator<Item = &'a mut T>, P: FnMut(&T) -> bool,

fn is_partitioned<P>(self, predicate: P) -> bool

where Self: Sized, P: FnMut(Self::Item) -> bool,

fn fold<B, F>(self, init: B, f: F) -> B

where Self: Sized, F: FnMut(B, Self::Item) -> B,

fn reduce<F>(self, f: F) -> Option<Self::Item>

where Self: Sized, F: FnMut(Self::Item, Self::Item) -> Self::Item,

fn all<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(Self::Item) -> bool,

fn any<F>(&mut self, f: F) -> bool

where Self: Sized, F: FnMut(Self::Item) -> bool,

fn find<P>(&mut self, predicate: P) -> Option<Self::Item>

where Self: Sized, P: FnMut(&Self::Item) -> bool,

fn find_map<B, F>(&mut self, f: F) -> Option<B>

where Self: Sized, F: FnMut(Self::Item) -> Option<B>,

fn position<P>(&mut self, predicate: P) -> Option<usize>

where Self: Sized, P: FnMut(Self::Item) -> bool,

fn this_is_a_method_with_a_long_name_returning_something() -> String

We will scroll to “string” to ensure it scrolls as expected.

Object Safety

This trait is not object safe.

Implementors