Enum OptionSystemChange 

#[repr(C, u8)]
pub enum OptionSystemChange {
    None,
    Some(SystemChange),
}

Variants

None

Some(SystemChange)

Implementations

impl OptionSystemChange

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

impl OptionSystemChange

pub fn as_option(&self) -> Option<&SystemChange>

pub fn replace(&mut self, value: SystemChange) -> OptionSystemChange

pub fn is_some(&self) -> bool

pub fn is_none(&self) -> bool

pub const fn as_ref(&self) -> Option<&SystemChange>

pub fn as_mut(&mut self) -> Option<&mut SystemChange>

pub fn map<U, F: FnOnce(SystemChange) -> U>(self, f: F) -> Option<U>

pub fn and_then<U, F>(self, f: F) -> Option<U>

where F: FnOnce(SystemChange) -> Option<U>,

Trait Implementations

impl Clone for OptionSystemChange

fn clone(&self) -> OptionSystemChange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionSystemChange

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

Formats the value using the given formatter.

impl Default for OptionSystemChange

fn default() -> OptionSystemChange

Returns the “default value” for a type.

impl From<Option<SystemChange>> for OptionSystemChange

fn from(o: Option<SystemChange>) -> OptionSystemChange

Converts to this type from the input type.

impl From<OptionSystemChange> for Option<SystemChange>

fn from(o: OptionSystemChange) -> Option<SystemChange>

Converts to this type from the input type.

impl PartialEq for OptionSystemChange

fn eq(&self, other: &OptionSystemChange) -> 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 StructuralPartialEq for OptionSystemChange