Struct EngineHistory 

pub struct EngineHistory {
    pub initial_score: Score,
    pub commands: Vec<Command>,
}

Serialisable snapshot of a ScoreEngine’s command history for crash recovery or replay.

initial_score is the state of the score before any commands were applied (i.e. the base loaded via ScoreEngine::replace_score or the built-in default). commands are the commands applied after that, in execution order.

Round-trip: ScoreEngine::from_history(engine.export_history()) produces an engine whose score and version match the original.

Fields

initial_score: Score

commands: Vec<Command>

Trait Implementations

impl Debug for EngineHistory

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EngineHistory

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for EngineHistory

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

where __S: Serializer,

Serialize this value into the given Serde serializer.