Struct BincodeLen 

pub struct BincodeLen<const MAX_SIZE: usize = DEFAULT_BINCODE_LEN_MAX_SIZE>;

SeqLen implementation for bincode’s default fixint encoding.

The MAX_SIZE constant is a limit on the maximum preallocation size (in bytes) for heap allocated structures. This is a safety precaution against malicious input causing OOM. The default is 4 MiB. Users are free to override this limit by passing a different constant or by implementing their own SeqLen implementation.

Trait Implementations

impl<const MAX_SIZE: usize> SeqLen for BincodeLen<MAX_SIZE>

fn read<'de, T>(reader: &mut impl Reader<'de>) -> ReadResult<usize>

Read the length of a sequence from the reader, where T is the type of the sequence elements. This can be used to enforce size constraints for preallocations.

fn write(writer: &mut impl Writer, len: usize) -> WriteResult<()>

Write the length of a sequence to the writer.

fn write_bytes_needed(_len: usize) -> WriteResult<usize>

Calculate the number of bytes needed to write the given length.