Struct der::asn1::OptionalRef

pub struct OptionalRef<'a, T>(pub Option<&'a T>);

A reference to an ASN.1 OPTIONAL type, used for encoding only.

Tuple Fields

0: Option<&'a T>

Trait Implementations

impl<'a, T> Encodable for OptionalRef<'a, T> where
    T: Encodable, 

fn encoded_len(&self) -> Result<Length>

Compute the length of this value in bytes when encoded as ASN.1 DER.

fn encode(&self, encoder: &mut Encoder<'_>) -> Result<()>

Encode this value as ASN.1 DER using the provided Encoder.

fn encode_to_slice<'a>(&self, buf: &'a mut [u8]) -> Result<&'a [u8]>

Encode this value to the provided byte slice, returning a sub-slice containing the encoded message.

fn encode_to_vec(&self, buf: &mut Vec<u8>) -> Result<Length>

This is supported on crate feature alloc only.

Encode this message as ASN.1 DER, appending it to the provided byte vector.

fn to_vec(&self) -> Result<Vec<u8>>

This is supported on crate feature alloc only.

Serialize this message as a byte vector.