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MappedCollection

polars_utils::collection

Struct MappedCollection 

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pub struct MappedCollection<'src, Src: ?Sized, T: ?Sized, U: ?Sized> { /* private fields */ }

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impl<'src, Src, T: ?Sized, U: ?Sized> MappedCollection<'src, Src, T, U>
where Src: Collection<T> + ?Sized,

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pub fn new( src: &'src mut Src, map: fn(&T) -> &U, map_mut: fn(&mut T) -> &mut U, ) -> Self

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impl<'src, Src, T: ?Sized, U: ?Sized> Collection<U> for MappedCollection<'src, Src, T, U>
where Src: Collection<T> + ?Sized,

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fn len(&self) -> usize

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fn get(&self, idx: usize) -> Option<&U>

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fn get_mut(&mut self, idx: usize) -> Option<&mut U>

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fn is_empty(&self) -> bool

Auto Trait Implementations§

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impl<'src, Src, T, U> Freeze for MappedCollection<'src, Src, T, U>
where Src: ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> RefUnwindSafe for MappedCollection<'src, Src, T, U>
where Src: RefUnwindSafe + ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> Send for MappedCollection<'src, Src, T, U>
where Src: Send + ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> Sync for MappedCollection<'src, Src, T, U>
where Src: Sync + ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> Unpin for MappedCollection<'src, Src, T, U>
where Src: ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> UnsafeUnpin for MappedCollection<'src, Src, T, U>
where Src: ?Sized, T: ?Sized, U: ?Sized,

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impl<'src, Src, T, U> !UnwindSafe for MappedCollection<'src, Src, T, U>

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<U> 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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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> Ungil for T
where T: Send,