Struct flatcontainer::impls::slice::SliceRegion

pub struct SliceRegion<C: Region, O: OffsetContainer<C::Index> = Vec<<C as Region>::Index>> { /* private fields */ }

A container representing slices of data.

Reading from this region is more involved than for others, because the data only exists in an indexable representation. The read item is a ReadSlice, which can be iterated or indexed. However, it is not possible to represent the data as a slice, simply because the slice doesn’t exist.

Examples

We fill some data into a slice region and use the ReadSlice to extract it later.

use flatcontainer::{Containerized, CopyOnto, Region, SliceRegion};
let mut r = <SliceRegion<<String as Containerized>::Region>>::default();

let panagram_en = "The quick fox jumps over the lazy dog"
    .split(" ")
    .collect::<Vec<_>>();
let panagram_de = "Zwölf Boxkämpfer jagen Viktor quer über den großen Sylter Deich"
    .split(" ")
    .collect::<Vec<_>>();

let en_index = (&panagram_en).copy_onto(&mut r);
let de_index = (&panagram_de).copy_onto(&mut r);

assert!(panagram_de.into_iter().eq(r.index(de_index)));
assert!(panagram_en.into_iter().eq(r.index(en_index)));

assert_eq!(r.index(de_index).get(2), "jagen");

Trait Implementations

impl<C: Clone + Region, O: Clone + OffsetContainer<C::Index>> Clone for SliceRegion<C, O>

fn clone(&self) -> SliceRegion<C, O>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, C, T: 'a, O: OffsetContainer<C::Index>> CopyOnto<SliceRegion<C, O>> for &'a [T]

where C: Region, &'a T: CopyOnto<C>,

fn copy_onto( self, target: &mut SliceRegion<C, O> ) -> <SliceRegion<C, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<'a, C, T, O: OffsetContainer<C::Index>> CopyOnto<SliceRegion<C, O>> for &'a Vec<T>

where C: Region, &'a [T]: CopyOnto<SliceRegion<C, O>>,

fn copy_onto( self, target: &mut SliceRegion<C, O> ) -> <SliceRegion<C, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<'a, C: Region + 'a, O: OffsetContainer<C::Index>> CopyOnto<SliceRegion<C, O>> for ReadSlice<'a, C, O>

where C::ReadItem<'a>: CopyOnto<C>,

fn copy_onto( self, target: &mut SliceRegion<C, O> ) -> <SliceRegion<C, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<C, T, O: OffsetContainer<C::Index>> CopyOnto<SliceRegion<C, O>> for Vec<T>

where C: Region, T: CopyOnto<C>,

fn copy_onto( self, target: &mut SliceRegion<C, O> ) -> <SliceRegion<C, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<'a, T, R: Region, O: OffsetContainer<R::Index>, const N: usize> CopyOnto<SliceRegion<R, O>> for &'a [T; N]

where for<'b> &'b [T]: CopyOnto<SliceRegion<R, O>>,

fn copy_onto( self, target: &mut SliceRegion<R, O> ) -> <SliceRegion<R, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<T, R: Region, O: OffsetContainer<R::Index>, const N: usize> CopyOnto<SliceRegion<R, O>> for [T; N]

where for<'a> &'a [T]: CopyOnto<SliceRegion<R, O>>,

fn copy_onto( self, target: &mut SliceRegion<R, O> ) -> <SliceRegion<R, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.

impl<C: Debug + Region, O: Debug + OffsetContainer<C::Index>> Debug for SliceRegion<C, O>

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

Formats the value using the given formatter.

impl<C: Region, O: OffsetContainer<C::Index>> Default for SliceRegion<C, O>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, C, O> Deserialize<'de> for SliceRegion<C, O>

where C: Deserialize<'de> + Region, O: Deserialize<'de> + OffsetContainer<C::Index>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<C: Region, O: OffsetContainer<C::Index>> Region for SliceRegion<C, O>

type ReadItem<'a> = ReadSlice<'a, C, O> where Self: 'a

The type of the data that one gets out of the container.

type Index = (usize, usize)

The type to index into the container. Should be treated as an opaque type, even if known.

fn merge_regions<'a>(regions: impl Iterator<Item = &'a Self> + Clone) -> Self

where Self: 'a,

Construct a region that can absorb the contents of regions in the future.

fn index(&self, (start, end): Self::Index) -> Self::ReadItem<'_>

Index into the container. The index must be obtained by pushing data into the container.

fn reserve_regions<'a, I>(&mut self, regions: I)

where Self: 'a, I: Iterator<Item = &'a Self> + Clone,

Ensure that the region can absorb the items of regions without reallocation

fn clear(&mut self)

Remove all elements from this region, but retain allocations if possible.

fn heap_size<F: FnMut(usize, usize)>(&self, callback: F)

Heap size, size - capacity

impl<'a, T, R: Region, O: OffsetContainer<R::Index>> ReserveItems<SliceRegion<R, O>> for &'a [T]

where &'a T: ReserveItems<R> + 'a,

fn reserve_items<I>(target: &mut SliceRegion<R, O>, items: I)

where I: Iterator<Item = Self> + Clone,

Ensure that the region can absorb items without reallocation.

impl<'a, T: 'a, R: Region, O: OffsetContainer<R::Index>, const N: usize> ReserveItems<SliceRegion<R, O>> for &'a [T; N]

where &'a T: ReserveItems<R>,

fn reserve_items<I>(target: &mut SliceRegion<R, O>, items: I)

where I: Iterator<Item = Self> + Clone,

Ensure that the region can absorb items without reallocation.

impl<'a, T: 'a, R: Region, O: OffsetContainer<R::Index>> ReserveItems<SliceRegion<R, O>> for &'a Vec<T>

where &'a T: ReserveItems<R>,

fn reserve_items<I>(target: &mut SliceRegion<R, O>, items: I)

where I: Iterator<Item = Self> + Clone,

Ensure that the region can absorb items without reallocation.

impl<C, O> Serialize for SliceRegion<C, O>

where C: Serialize + Region, O: Serialize + OffsetContainer<C::Index>,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.