Struct TableSpans 

pub struct TableSpans(/* private fields */);

The spans of values anywhere in the storage, each given by a table of ranges of octets, relative to where the buffer starts: the table is a side allocation of the storage, so it lives as long as the storage without being counted, and slicing the values only moves the pointer to their ranges.

The span of a buffer built with a single value takes no table: the buffer starts where its value does, and the length of the value is held in place of the pointer, tagged by its lowest bit, which a table, aligned for its ranges, never has set.

Trait Implementations

impl Clone for TableSpans

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TableSpans

impl Send for TableSpans

impl Spans for TableSpans

const EMPTY: Self

The spans of no values at all.

unsafe fn span(self, index: usize) -> (usize, usize)

The offset and the length, in octets, of the value at that index, relative to where the buffer starts in its storage.

unsafe fn advance(self, count: usize) -> (usize, Self)

How many octets further the buffer starts, and the spans, of the buffer starting that many values further, which is what slicing is made of.

impl Sync for TableSpans