Struct Reader 

pub struct Reader<'a> {
    pub offset: usize,
    /* private fields */
}

Sequential reader borrowing a byte slice.

Fields

offset: usize

Current byte offset.

Implementations

impl<'a> Reader<'a>

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

Borrow input without copying or mutating it.

pub fn remaining(&self) -> usize

Unconsumed byte count.

pub fn raw(&mut self, size: usize) -> Result<&'a [u8]>

Read a bounded range, returning an error rather than panicking.

pub fn fail<T>(&self, message: impl Into<String>) -> Result<T>

Construct a diagnostic at the current position.

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

Read an unsigned byte.

pub fn i8(&mut self) -> Result<i8>

Read a signed byte.

pub fn u16(&mut self) -> Result<u16>

Read an unsigned 16-bit word.

pub fn i16(&mut self) -> Result<i16>

Read a signed 16-bit word.

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

Read an unsigned word, also usable for exact f32 storage bits.

pub fn i32(&mut self) -> Result<i32>

Read a signed 32-bit word.

pub fn f32(&mut self) -> Result<f32>

Read an IEEE-754 single-precision value.

pub fn count(&mut self, maximum: usize, stride: usize) -> Result<usize>

Read a nonnegative count bounded by both policy and available storage.

pub fn string(&mut self, maximum: usize) -> Result<Vec<u8>>

Read an original length-prefixed byte string.

pub fn end(&self) -> Result<()>

Require exact record consumption.