Struct OptionType

pub struct OptionType { /* private fields */ }

A type that may also be the absence of anything.

Implementations

impl OptionType

pub fn new(ty: ValueType) -> Self

Creates a new option type that holds the given value.

pub fn some_ty(&self) -> ValueType

Gets the type associated with the Some variant of this type.

Trait Implementations

impl Clone for OptionType

fn clone(&self) -> OptionType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for OptionType

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

Formats the value using the given formatter.

impl Hash for OptionType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for OptionType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for OptionType

impl StructuralPartialEq for OptionType