Struct MapDataset

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pub struct MapDataset<D, F>where
    D: Dataset,
    F: Fn(D::Item) -> D::Item + Send + Sync,
{ /* private fields */ }

Expand description

A dataset that applies a transform to another dataset.

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impl<D, F> MapDataset<D, F>
where D: Dataset, F: Fn(D::Item) -> D::Item + Send + Sync,

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pub fn new(dataset: D, transform: F) -> Self

Creates a new MapDataset.

Trait Implementations§

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impl<D, F> Dataset for MapDataset<D, F>
where D: Dataset, F: Fn(D::Item) -> D::Item + Send + Sync,

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type Item = <D as Dataset>::Item

The type of items in the dataset.

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fn len(&self) -> usize

Returns the number of items in the dataset.

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fn get(&self, index: usize) -> Option<Self::Item>

Gets an item by index.

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fn is_empty(&self) -> bool

Returns true if the dataset is empty.

Auto Trait Implementations§

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impl<D, F> Freeze for MapDataset<D, F>
where D: Freeze, F: Freeze,

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impl<D, F> RefUnwindSafe for MapDataset<D, F>
where D: RefUnwindSafe, F: RefUnwindSafe,

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impl<D, F> UnwindSafe for MapDataset<D, F>
where D: UnwindSafe, F: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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