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Append

Struct Append 

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pub struct Append {
    pub run: RunId,
    pub case: Option<CaseId>,
    pub step: Option<StepId>,
    pub phase: Phase,
    pub effect_key: Option<EffectKey>,
    pub kind: RecordKind,
    /* private fields */
}
Expand description

What the runtime hands the store. Seq, chain links, and hashing are the store’s job, because only it knows the run’s current head.

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§run: RunId§case: Option<CaseId>§step: Option<StepId>§phase: Phase§effect_key: Option<EffectKey>§kind: RecordKind

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impl Append

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pub fn new(run: RunId, kind: RecordKind) -> Self

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pub fn step(self, s: StepId) -> Self

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pub fn phase(self, p: Phase) -> Self

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pub fn case(self, c: CaseId) -> Self

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pub fn effect(self, k: EffectKey) -> Self

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pub fn from_body(body: RecordBody) -> Self

Rebuild the append that produced a body.

The inverse of the crate-private into_body, and the whole of what a restore needs: seq and epoch are supplied by the write path, and everything else travels here. Written as a function rather than left to each caller because the field list is the thing that would drift — a restore that forgot phase would replay a compensation as a forward record, and the chain would hash differently for a reason no diff shows.

Ungated, unlike into_body below: a restore reads an export rather than a store, so it is reachable in a build with no backend compiled in.

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pub fn restored(record: Record) -> Self

The append that puts a verified record back exactly as it was written.

The store stores and hashes the bytes the record carries and indexes the body it reads from those bytes through its own upcaster — never the append’s fields, which a caller can change after this — so a record restored across a shape change hashes as it did in the export. A body re-sealed instead would be this build’s serialization of the lifted shape: new bytes, a new hash, and a chain that is no longer the one exported.

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pub fn written(&self) -> Option<&[u8]>

The written bytes a restore carries, which a store keeps rather than re-sealing; None on every runtime write.

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impl Clone for Append

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for Append

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

Formats the value using the given formatter. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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where T: ?Sized,

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Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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fn __clone_box(&self, _: Private) -> *mut ()

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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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