Struct TrialDelta 

#[non_exhaustive]
pub struct TrialDelta {
    pub seq: u64,
    pub trial: FrozenTrial,
}

One change to one trial, as seen through Storage::sync.

This is coarse: a delta is a whole-trial snapshot plus a sequence number. That is all the in-memory backend needs, and it makes the merge in StudyView::apply a replace.

The journal backend may refine the wire format into finer-grained ops (param written, value reported); it will still be able to present them as whole-trial deltas here, so this type is not a dead end.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

seq: u64

Monotonically increasing sequence number within the study. A Cursor is compared against it.

trial: FrozenTrial

The trial’s state after the change.

Implementations

impl TrialDelta

pub const fn new(seq: u64, trial: FrozenTrial) -> Self

Wraps a snapshot as a delta.

Trait Implementations

impl Clone for TrialDelta

fn clone(&self) -> TrialDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TrialDelta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TrialDelta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TrialDelta

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for TrialDelta

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 TrialDelta