Struct Reader 

pub struct Reader<'a> {
    pub data: &'a [u8],
    pub pos: usize,
}

Fields

data: &'a [u8]

pos: usize

Implementations

impl<'a> Reader<'a>

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

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

pub fn read_u8(&mut self) -> Result<u8, DecodeErr>

pub fn read_u32_le(&mut self) -> Result<u32, DecodeErr>

pub fn read_raw(&mut self, n: usize) -> Result<&'a [u8], DecodeErr>

pub fn read_compact_u32(&mut self) -> Result<u32, DecodeErr>

SCALE compact integer (unsigned, up to u32 range).

pub fn read_string(&mut self) -> Result<String, DecodeErr>

SCALE string: compact length + UTF-8 bytes.

pub fn read_var_bytes(&mut self) -> Result<Vec<u8>, DecodeErr>

Dynamic-length bytes: compact length + raw bytes.

pub fn read_fixed_bytes(&mut self, n: usize) -> Result<Vec<u8>, DecodeErr>

Fixed-length bytes.

pub fn read_option<T>( &mut self, f: impl FnOnce(&mut Self) -> Result<T, DecodeErr>, ) -> Result<Option<T>, DecodeErr>

SCALE Option: 0x00 = None, 0x01 = Some(T).

pub fn skip_rest(&mut self)

Skip all remaining bytes (for void / don’t-care payloads).