Struct ElementReader 

pub struct ElementReader<T, E> { /* private fields */ }

Reads a value and hands out the elements of its Streamed sequence without doing IO.

This reads the value from an InputBuffer which is filled by the caller. Reader::read_next of deser::io and adapters for other kinds of IO (for instance async runtimes) use this. T is the type of the value, E the type of the elements of the Streamed sequence which are handed out.

Elements are handed out before more input is needed, so an element is available as soon as its last byte was read (if the stream deserializer supports StreamDeserializer::feed, otherwise once the value is complete).

Implementations

impl<T: DeserializeOwned + 'static, E: Send + 'static> ElementReader<T, E>

pub fn new() -> ElementReader<T, E>

Creates a reader for a value.

pub fn is_reading(&self) -> bool

Returns true if a value is being read.

This is false before the first call and after the value was handed out.

pub fn poll<D: StreamDeserializer>( &mut self, buffer: &mut InputBuffer<D>, ) -> Result<ElementStatus<E, T>, Error>

Returns the next element or the value.

Once the value is ready (Part::Done) the reader is done, the next call starts with the next value.

Trait Implementations

impl<T: DeserializeOwned + 'static, E: Send + 'static> Default for ElementReader<T, E>

fn default() -> ElementReader<T, E>

Returns the “default value” for a type.