Struct const_it::Slice

pub struct Slice<'a, S: ?Sized, Index>(pub &'a S, pub Index);

A pending slice operation. This can be used to slice &[T] and &str in a const context with any valid slice index.

You can use the slice!, try_slice!, split_slice_at! and try_split_slice_at! convenience macros instead of using this directly.

const STR: &str = Slice("const slice", ..5).index(); // "const"
const BYTES: &[u8] = Slice(b"01234", 1..=3).index(); // b"123"

Tuple Fields

0: &'a S

1: Index

Implementations

impl<'a, T> Slice<'a, [T], usize>

pub const fn split(&self) -> (&'a [T], &'a [T])

Split the slice at the stored index, or panic on error

pub const fn try_split(&self) -> Option<(&'a [T], &'a [T])>

Split the slice at the stored index, or return None on error

impl<'a, T, const N: usize> Slice<'a, [T; N], usize>

pub const fn split(&self) -> (&'a [T], &'a [T])

Split the slice at the stored index, or panic on error

pub const fn try_split(&self) -> Option<(&'a [T], &'a [T])>

Split the slice at the stored index, or return None on error

impl<'a> Slice<'a, str, usize>

pub const fn split(&self) -> (&'a str, &'a str)

Split the slice at the stored index, or panic on error

pub const fn try_split(&self) -> Option<(&'a str, &'a str)>

Split the slice at the stored index, or return None on error

impl<'a, T> Slice<'a, [T], usize>

pub const fn get(&self) -> Option<&'a <usize as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <usize as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], usize>

pub const fn get(&self) -> Option<&'a <usize as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <usize as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], Range<usize>>

pub const fn get(&self) -> Option<&'a <Range<usize> as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <Range<usize> as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], Range<usize>>

pub const fn get( &self, ) -> Option<&'a <Range<usize> as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <Range<usize> as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, Range<usize>>

pub const fn get(&self) -> Option<&'a <Range<usize> as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <Range<usize> as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], RangeInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeInclusive<usize> as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeInclusive<usize> as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], RangeInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeInclusive<usize> as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeInclusive<usize> as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, RangeInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeInclusive<usize> as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeInclusive<usize> as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], RangeFrom<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeFrom<usize> as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeFrom<usize> as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], RangeFrom<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeFrom<usize> as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeFrom<usize> as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, RangeFrom<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeFrom<usize> as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeFrom<usize> as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], RangeFull>

pub const fn get(&self) -> Option<&'a <RangeFull as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeFull as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], RangeFull>

pub const fn get(&self) -> Option<&'a <RangeFull as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeFull as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, RangeFull>

pub const fn get(&self) -> Option<&'a <RangeFull as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeFull as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], RangeTo<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeTo<usize> as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeTo<usize> as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], RangeTo<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeTo<usize> as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeTo<usize> as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, RangeTo<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeTo<usize> as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index(&self) -> &'a <RangeTo<usize> as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T> Slice<'a, [T], RangeToInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeToInclusive<usize> as SliceIndex<[T]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeToInclusive<usize> as SliceIndex<[T]>>::Output

Evaluate this slice operation, or panic on error

impl<'a, T, const N: usize> Slice<'a, [T; N], RangeToInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeToInclusive<usize> as SliceIndex<[T; N]>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeToInclusive<usize> as SliceIndex<[T; N]>>::Output

Evaluate this slice operation, or panic on error

impl<'a> Slice<'a, str, RangeToInclusive<usize>>

pub const fn get( &self, ) -> Option<&'a <RangeToInclusive<usize> as SliceIndex<str>>::Output>

Evaluate this slice operation, or return None on error

pub const fn index( &self, ) -> &'a <RangeToInclusive<usize> as SliceIndex<str>>::Output

Evaluate this slice operation, or panic on error