Struct Reader 

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

Reader for decoding binary data.

Wraps a byte slice and provides methods for reading primitives with bounds checking and error handling.

Implementations

impl<'a> Reader<'a>

pub fn new(data: &'a [u8]) -> Self

Creates a new reader from a byte slice.

pub fn position(&self) -> usize

Returns the current position in the data.

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

Returns the remaining bytes.

pub fn remaining_len(&self) -> usize

Returns the number of remaining bytes.

pub fn is_empty(&self) -> bool

Returns true if all data has been consumed.

pub fn read_byte(&mut self, context: &'static str) -> Result<u8, DecodeError>

Reads a single byte.

pub fn read_bytes( &mut self, n: usize, context: &'static str, ) -> Result<&'a [u8], DecodeError>

Reads exactly n bytes.

pub fn read_id(&mut self, context: &'static str) -> Result<Id, DecodeError>

Reads a 16-byte UUID.

pub fn read_varint(&mut self, context: &'static str) -> Result<u64, DecodeError>

Reads an unsigned varint (LEB128).

pub fn read_signed_varint( &mut self, context: &'static str, ) -> Result<i64, DecodeError>

Reads a signed varint (zigzag encoded).

pub fn read_string( &mut self, max_len: usize, field: &'static str, ) -> Result<String, DecodeError>

Reads a length-prefixed UTF-8 string (allocates).

pub fn read_str( &mut self, max_len: usize, field: &'static str, ) -> Result<&'a str, DecodeError>

Reads a length-prefixed UTF-8 string as a borrowed slice (zero-copy).

pub fn read_bytes_prefixed( &mut self, max_len: usize, field: &'static str, ) -> Result<Vec<u8>, DecodeError>

Reads a length-prefixed byte array.

pub fn read_f64(&mut self, context: &'static str) -> Result<f64, DecodeError>

Reads a little-endian f64.

pub fn read_f64_unchecked( &mut self, context: &'static str, ) -> Result<f64, DecodeError>

Reads a little-endian f64 without NaN check.

pub fn read_id_vec( &mut self, max_len: usize, field: &'static str, ) -> Result<Vec<Id>, DecodeError>

Reads a vector of IDs with length prefix.

Trait Implementations

impl<'a> Clone for Reader<'a>

fn clone(&self) -> Reader<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Reader<'a>

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

Formats the value using the given formatter.