Struct Payload 

pub struct Payload<'a> { /* private fields */ }

Bytes read into memory, with the source offset of their first byte.

The image decoders read a payload from memory but address it in source coordinates, so their errors keep naming source offsets. As a RangedSource it has the size of its end offset; bytes before its start are not readable.

Implementations

impl<'a> Payload<'a>

pub fn new(offset: u64, bytes: &'a [u8]) -> Result<Self>

bytes start at source offset offset; their end must fit a u64.

pub fn offset(&self) -> u64

The source offset of the first byte.

pub fn bytes(&self) -> &'a [u8]

pub fn end(&self) -> u64

The source offset just past the last byte.

pub fn get(&self, start: u64, length: u64) -> Option<&'a [u8]>

The length bytes at source offset start, if all lie in this payload.

Trait Implementations

impl<'a> Clone for Payload<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for Payload<'a>

impl<'a> Debug for Payload<'a>

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

Formats the value using the given formatter.

impl<'a> Default for Payload<'a>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> From<&'a [u8]> for Payload<'a>

A slice starting at source offset zero.

fn from(bytes: &'a [u8]) -> Self

Converts to this type from the input type.

impl RangedSource for Payload<'_>

fn size(&self) -> u64

fn read_at(&mut self, offset: u64, destination: &mut [u8]) -> Result<usize>