Struct DecoderState 

pub struct DecoderState { /* private fields */ }

Heapless strict Base64 decoder state.

The current input quantum and pending output quantum are mutually exclusive. This keeps retry state bounded while allowing one-byte output destinations without asking the caller to replay accepted input.

Implementations

impl DecoderState

pub fn update( &mut self, input: &[u8], output: &mut [u8], ) -> Result<Step, OperationError>

Accepts a strict padded input prefix and writes decoded output that fits.

pub fn finish(&mut self, output: &mut [u8]) -> Result<Step, OperationError>

Declares end of input and resolves the selected padding policy.

pub fn reset(&mut self)

Resets the state for one unrelated ordinary message.

pub fn clear(&mut self)

Clears retained ordinary input and output through the reviewed wipe boundary, then resets the state for reuse.

This is explicit best-effort cleanup. It cannot retract plaintext already returned to a caller or clear copies outside this state.

pub const fn source_position(&self) -> usize

Returns the absolute number of input bytes accepted since reset.

pub const fn buffered_input_len(&self) -> usize

Returns encoded input bytes retained until the next complete quantum.

pub const fn has_terminal_padding(&self) -> bool

Returns whether a terminal padded quantum has been accepted.

Trait Implementations

impl Clone for DecoderState

fn clone(&self) -> DecoderState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecoderState

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

Formats the value using the given formatter.

impl Eq for DecoderState

impl PartialEq for DecoderState

fn eq(&self, other: &DecoderState) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DecoderState