Struct Cursor 

pub struct Cursor<I> {
    pub buf: I,
    pub pos: Cell<usize>,
}

A cursor based BufReader<'de> implementation.

Fields

buf: I

The underlying input read from.

pos: Cell<usize>

The position within the reader.

Implementations

impl<I> Cursor<I>

pub fn new(buf: I) -> Cursor<I>

Returns a new cursor on the provided buf input.

The cursor starts at the beginning of buf.

Trait Implementations

impl<'de, I> BufReader<'de> for &'de Cursor<I>

where I: AsRef<[u8]>,

fn get_chunk(&mut self, size: usize) -> Option<&'de [u8]>

Reads and returns a chunk of .len() = size advancing the cursor iff self.remaining() >= size.

fn get_array_chunk<const N: usize>(&mut self) -> Option<&'de [u8; N]>

Reads and returns a chunk of .len() = N as an array, advancing the cursor.

fn remaining(&self) -> usize

Returns the number of bytes left to read in the input.

fn get_slice(&mut self, size: usize) -> Result<&'de [u8], DecodeError>

Reads and returns a byte slice of .len() = size advancing the cursor.

fn get_array<const N: usize>(&mut self) -> Result<&'de [u8; N], DecodeError>

Reads an array of type [u8; N] from the input.

fn get_u8(&mut self) -> Result<u8, DecodeError>

Reads a u8 in little endian (LE) encoding from the input.

fn get_u16(&mut self) -> Result<u16, DecodeError>

Reads a u16 in little endian (LE) encoding from the input.

fn get_u32(&mut self) -> Result<u32, DecodeError>

Reads a u32 in little endian (LE) encoding from the input.

fn get_u64(&mut self) -> Result<u64, DecodeError>

Reads a u64 in little endian (LE) encoding from the input.

fn get_u128(&mut self) -> Result<u128, DecodeError>

Reads a u128 in little endian (LE) encoding from the input.

fn get_u256(&mut self) -> Result<U256, DecodeError>

Reads a u256 in little endian (LE) encoding from the input.

fn get_i8(&mut self) -> Result<i8, DecodeError>

Reads an i8 in little endian (LE) encoding from the input.

fn get_i16(&mut self) -> Result<i16, DecodeError>

Reads an i16 in little endian (LE) encoding from the input.

fn get_i32(&mut self) -> Result<i32, DecodeError>

Reads an i32 in little endian (LE) encoding from the input.

fn get_i64(&mut self) -> Result<i64, DecodeError>

Reads an i64 in little endian (LE) encoding from the input.

fn get_i128(&mut self) -> Result<i128, DecodeError>

Reads an i128 in little endian (LE) encoding from the input.

fn get_i256(&mut self) -> Result<I256, DecodeError>

Reads an i256 in little endian (LE) encoding from the input.

impl<I> Debug for Cursor<I>

where I: Debug,

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

Formats the value using the given formatter.