Struct zvariant::SharedData

pub struct SharedData { /* fields omitted */ }

Immutable slice of an underlying byte buffer.

Cloning this is cheap as it does not clone the underlying buffer.

Example

use zvariant::SharedData;

let data = SharedData::from((0u8..10).collect::<Vec<_>>());
assert!(data.position() == 0);
assert!(data.end() == 10);
assert!(data.len() == 10);

let subset1 = data.subset(2, 8);
assert!(subset1.position() == 2);
assert!(subset1.end() == 8);
assert!(subset1.len() == 6);

let subset3 = data.head(7);
assert!(subset3.position() == 0);
assert!(subset3.end() == 7);
assert!(subset3.len() == 7);

let subset4 = subset3.tail(3);
assert!(subset4.position() == 3);
assert!(subset4.end() == 7);
assert!(subset4.len() == 4);

Methods

impl SharedData

pub fn new(data: Vec<u8>) -> Self

Create a new SharedData.

pub fn subset(&self, index: usize, end: usize) -> Self

Create a new slice of self, from index to (but excluding) end.

Panics

• index >= end
• end == 0
• end > self.end()

pub fn head(&self, len: usize) -> Self

Create a new slice of self, containing the first len bytes.

Panics

• len == 0
• len > self.end()

pub fn tail(&self, index: usize) -> Self

Create a new slice of self, containing bytes after index.

Panics

• index >= self.end()

pub fn position(&self) -> usize

Get the position of this slice in the whole underlying buffer.

pub fn end(&self) -> usize

Get the end of this slice in the whole underlying buffer.

pub fn len(&self) -> usize

Get the length of self.

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

Get the raw byte slice of self.

Trait Implementations

impl Clone for SharedData

fn clone(&self) -> SharedData

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SharedData

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

Formats the value using the given formatter.

impl Display for SharedData

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

Formats the value using the given formatter.

impl<'_> From<&'_ SharedData> for SharedData

Same as cloning

fn from(value: &SharedData) -> Self

Performs the conversion.

impl From<Vec<u8>> for SharedData

fn from(value: Vec<u8>) -> Self

Performs the conversion.