Struct nano_leb128::SLEB128

pub struct SLEB128(_);

A value that can be (de)serialized using signed LEB128 variable length compression.

Examples

Deserializing a value that was serialized using signed LEB128 variable length compression:

use nano_leb128::SLEB128;

let buf = [0xC0, 0xBB, 0x78];

let (val, len) = SLEB128::read_from(&buf).unwrap();

assert_eq!(i64::from(val), -123456);
assert_eq!(len, 3);

Serializing a value using signed LEB128 variable length compression:

use nano_leb128::SLEB128;

let mut buf = [0; 3];

assert_eq!(SLEB128::from(-123456).write_into(&mut buf).unwrap(), 3);
assert_eq!(buf, [0xC0, 0xBB, 0x78]);

Methods

impl SLEB128

pub fn read_from(buf: &[u8]) -> Result<(Self, usize), LEB128DecodeError>

Attempts to read a signed LEB128 compressed value from a buffer.

On success this will return the decompressed value and the number of bytes that were read.

pub fn write_into(self, buf: &mut [u8]) -> Result<usize, LEB128EncodeError>

Attempts to write a value into a buffer using signed LEB128 compression.

On success this will return the number of bytes that were written.

Trait Implementations

impl PartialEq<SLEB128> for SLEB128

fn eq(&self, other: &SLEB128) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &SLEB128) -> bool

This method tests for !=.

impl Eq for SLEB128

impl Copy for SLEB128

impl Debug for SLEB128

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

Formats the value using the given formatter.

impl From<SLEB128> for i64

fn from(sleb128: SLEB128) -> Self

Performs the conversion.

impl From<i64> for SLEB128

fn from(val: i64) -> Self

Performs the conversion.

impl Clone for SLEB128

fn clone(&self) -> SLEB128

Returns a copy of the value.

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

Performs copy-assignment from source.