Struct OptionalPosition 

pub struct OptionalPosition(/* private fields */);

A Boolean-prefixed optional packed block position.

Implementations

impl OptionalPosition

pub const fn some(value: Position) -> Self

Creates a present value.

pub const fn none() -> Self

Creates an absent value.

pub fn value(&self) -> Option<&Position>

Returns the contained value by reference, if present.

pub fn into_option(self) -> Option<Position>

Extracts the wrapped optional value.

pub const fn is_some(&self) -> bool

Returns whether this value is present.

pub const fn is_none(&self) -> bool

Returns whether this value is absent.

Trait Implementations

impl Clone for OptionalPosition

fn clone(&self) -> OptionalPosition

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OptionalPosition

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for OptionalPosition

fn default() -> Self

Returns the “default value” for a type.

impl From<Option<Position>> for OptionalPosition

fn from(value: Option<Position>) -> Self

Converts to this type from the input type.

impl From<OptionalPosition> for Option<Position>

fn from(value: OptionalPosition) -> Self

Converts to this type from the input type.

impl PartialEq for OptionalPosition

fn eq(&self, other: &OptionalPosition) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for OptionalPosition

impl TypeCodec for OptionalPosition

where PrefixedOptional<Position>: TypeCodec,

fn encode(&self, writer: &mut impl Write) -> Result<(), CodecError>

Encodes this value to the writer.

fn decode(reader: &mut impl Read) -> Result<Self, CodecError>

Decodes this value from the reader.