Struct StateVersion 

pub struct StateVersion(pub u32);

Wrapper for state version that implements ComposableState.

The version is metadata about the state format, not user content. It doesn’t change via deltas - it’s set when the state is created and verified to be compatible when loaded.

Tuple Fields

0: u32

Trait Implementations

impl Clone for StateVersion

fn clone(&self) -> StateVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ComposableState for StateVersion

type ParentState = ChatRoomStateV1

type Summary = u32

type Delta = ()

type Parameters = ChatRoomParametersV1

fn verify( &self, _parent_state: &Self::ParentState, _parameters: &Self::Parameters, ) -> Result<(), String>

fn summarize( &self, _parent_state: &Self::ParentState, _parameters: &Self::Parameters, ) -> Self::Summary

fn delta( &self, _parent_state: &Self::ParentState, _parameters: &Self::Parameters, _old_state_summary: &Self::Summary, ) -> Option<Self::Delta>

fn apply_delta( &mut self, _parent_state: &Self::ParentState, _parameters: &Self::Parameters, _delta: &Option<Self::Delta>, ) -> Result<(), String>

Applies the specified delta to the current state.

fn merge( &mut self, parent_state: &Self::ParentState, parameters: &Self::Parameters, other_state: &Self, ) -> Result<(), String>

Merges the current state with another state.

impl Debug for StateVersion

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

Formats the value using the given formatter.

impl Default for StateVersion

fn default() -> StateVersion

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StateVersion

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for StateVersion

fn eq(&self, other: &StateVersion) -> 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 Serialize for StateVersion

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StateVersion