pub trait OptionsSerializerImpl<'a>: OptionsImplLayout {
type Option;
// Required methods
fn get_option_length(option: &Self::Option) -> usize;
fn get_option_kind(option: &Self::Option) -> u8;
fn serialize(data: &mut [u8], option: &Self::Option);
}Expand description
An implementation of an options serializer.
OptionsSerializerImpl provides to functions to serialize fixed- and
variable-length options. It is required in order to construct an
OptionsSerializer.
Required Associated Types§
Sourcetype Option
type Option
The input type to this serializer.
This is the analogous serializing version of Option in
OptionsImpl. Options serialization expects an Iterator of
objects of type Option.
Required Methods§
Sourcefn get_option_length(option: &Self::Option) -> usize
fn get_option_length(option: &Self::Option) -> usize
Returns the serialized length, in bytes, of the given option.
Implementers must return the length, in bytes, of the data*
portion of the option field (not counting the type and length
bytes). The internal machinery of options serialization takes care
of aligning options to their OPTION_LEN_MULTIPLIER boundaries,
adding padding bytes if necessary.
Sourcefn get_option_kind(option: &Self::Option) -> u8
fn get_option_kind(option: &Self::Option) -> u8
Returns the wire value for this option kind.
Sourcefn serialize(data: &mut [u8], option: &Self::Option)
fn serialize(data: &mut [u8], option: &Self::Option)
Serializes option into data.
Implementers must write the data portion of option into
data (not the type or length octets, those are extracted through
calls to get_option_kind and get_option_length, respectively).
data is guaranteed to be long enough to fit option based on the
value returned by get_option_length.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.