Struct Reader 

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

Cursor over a byte string.

Implementations

impl<'a> Reader<'a>

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

pub fn remaining(&self) -> usize

pub fn expect_end(&self, field: &'static str) -> Result<(), DecodeError>

Assert the value consumed the whole buffer. Called at the end of every top-level decode: a decoder that stops early is reading a different shape than the encoder wrote, and silently ignoring the tail is how an ABI skew turns into wrong values instead of an error.

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

pub fn u16(&mut self, field: &'static str) -> Result<u16, DecodeError>

pub fn u32(&mut self, field: &'static str) -> Result<u32, DecodeError>

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

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

pub fn bool(&mut self, field: &'static str) -> Result<bool, DecodeError>

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

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

pub fn opt_str( &mut self, field: &'static str, ) -> Result<Option<String>, DecodeError>

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

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

Read a u32 count and check it against the bytes actually left, so a corrupt count cannot make the caller pre-allocate an absurd Vec.