Struct sp_runtime::traits::AppendZerosInput

pub struct AppendZerosInput<'a, T>(/* private fields */);

Input that adds infinite number of zero after wrapped input.

This can add an infinite stream of zeros onto any input, not just a slice as with TrailingZerosInput.

Implementations

impl<'a, T> AppendZerosInput<'a, T>

pub fn new(input: &'a mut T) -> Self

Create a new instance from the given byte array.

Trait Implementations

impl<'a, T: Input> Input for AppendZerosInput<'a, T>

fn remaining_len(&mut self) -> Result<Option<usize>, Error>

Should return the remaining length of the input data. If no information about the input length is available, None should be returned.

fn read(&mut self, into: &mut [u8]) -> Result<(), Error>

Read the exact number of bytes required to fill the given buffer.

fn read_byte(&mut self) -> Result<u8, Error>

Read a single byte from the input.

fn descend_ref(&mut self) -> Result<(), Error>

Descend into nested reference when decoding. This is called when decoding a new refence-based instance, such as Vec or Box. Currently all such types are allocated on the heap.

fn ascend_ref(&mut self)

Ascend to previous structure level when decoding. This is called when decoding reference-based type is finished.