Struct Decoder 

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

A zero-copy, bounds-checked cursor over a byte slice.

Decoders are immutable views. Reading advances the internal cursor. Container reads return new Decoder instances restricted to the container’s body.

Errors

All read operations return Error::UnexpectedEnd if the buffer is exhausted.

Implementations

impl<'a> Decoder<'a>

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

Creates a decoder over the slice.

pub fn remaining(&self) -> usize

Returns the remaining bytes in the view.

pub fn peek_tag(&self) -> Result<Tag>

Peeks the next Tag without advancing.

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

Skips the next item and its nested children.

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

Decodes a bool.

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

Decodes u8.

pub fn s8(&mut self) -> Result<i8>

Decodes s8.

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

Decodes u16 (LE).

pub fn s16(&mut self) -> Result<i16>

Decodes s16 (LE).

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

Decodes u32 (LE).

pub fn s32(&mut self) -> Result<i32>

Decodes s32 (LE).

pub fn u64(&mut self) -> Result<u64>

Decodes u64 (LE).

pub fn s64(&mut self) -> Result<i64>

Decodes s64 (LE).

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

Decodes f32 (LE).

pub fn f64(&mut self) -> Result<f64>

Decodes f64 (LE).

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

Decodes char (u32 LE).

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

Decodes Unit ().

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

Decodes Option::None.

pub fn str(&mut self) -> Result<&'a str>

Decodes a string slice (UTF-8).

pub fn bytes(&mut self) -> Result<&'a [u8]>

Decodes a byte slice.

pub fn list(&mut self) -> Result<ListIter<'a>>

Decodes a List into an iterator.

pub fn map(&mut self) -> Result<MapIter<'a>>

Decodes a Map into an iterator.

pub fn option(&mut self) -> Result<Option<Decoder<'a>>>

Decodes an Option.

Returns Some(Decoder) for the payload if present, or None.

pub fn result(&mut self) -> Result<Result<Decoder<'a>, Decoder<'a>>>

Decodes a Result.

Returns Ok(Decoder) or Err(Decoder) for the respective payloads.

pub fn variant(&mut self) -> Result<(&'a str, Decoder<'a>)>

Decodes a Variant.

Returns (Name, PayloadDecoder).

Trait Implementations

impl<'a> Clone for Decoder<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Decoder<'a>

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

Formats the value using the given formatter.