Struct wasm::core::reader::span::Span

pub struct Span {
    pub(super) from: usize,
    pub(super) len: usize,
}

An index and offset to describe a (sub-) slice into WASM bytecode

Can be used to index into a WasmReader, yielding a byte slice. As it does not actually own the indexed data, this struct is free of lifetimes. Caution is advised when indexing unknown slices, as a Span does not validate the length of the indexed slice.

Fields

from: usize

len: usize

Implementations

impl Span

pub const fn new(from: usize, len: usize) -> Self

Create a new Span, starting from from and ranging len elements

pub const fn len(&self) -> usize

Returns the length of this Span

pub const fn from(&self) -> usize

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.

impl Hash for Span

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> Index<Span> for WasmReader<'a>

type Output = [u8]

The returned type after indexing.

fn index(&self, index: Span) -> &'a Self::Output

Performs the indexing (container[index]) operation.

impl Copy for Span