Struct EmptyRecord 

pub struct EmptyRecord;

A record representing the absence of persistent module state.

EmptyRecord is used for modules that do not store any data to be serialized or restored (e.g., modules marked with #[module(skip)] or modules without parameters).

This record contains no fields and serializes to None.

Implementations

impl EmptyRecord

pub fn new() -> EmptyRecord

Constructs a new EmptyRecord.

Trait Implementations

impl Clone for EmptyRecord

fn clone(&self) -> EmptyRecord

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EmptyRecord

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

Formats the value using the given formatter.

impl Default for EmptyRecord

fn default() -> EmptyRecord

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EmptyRecord

fn deserialize<D>( deserializer: D, ) -> Result<EmptyRecord, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for EmptyRecord

fn eq(&self, other: &EmptyRecord) -> 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<B> Record<B> for EmptyRecord

where B: Backend,

type Item<S: PrecisionSettings> = EmptyRecord

Type of the item that can be serialized and deserialized.

fn into_item<S>(self) -> <EmptyRecord as Record<B>>::Item<S>

where S: PrecisionSettings,

Convert the current record into the corresponding item that follows the given settings.

fn from_item<S>( item: <EmptyRecord as Record<B>>::Item<S>, _device: &<B as BackendTypes>::Device, ) -> EmptyRecord

where S: PrecisionSettings,

Convert the given item into a record.

impl Serialize for EmptyRecord

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for EmptyRecord

impl Eq for EmptyRecord

impl StructuralPartialEq for EmptyRecord