Struct DerivedKey 

pub struct DerivedKey {
    pub store_generation: u64,
    pub schemas_epoch: u64,
}

Discovered storage for a mem that has NO mount record — the unmounted half of flywheel W7/02’s write-time cross-mem target verification. The workspace layer owns the discovery convention (the mem-repo’s branch registry, which memstead-base cannot see without inverting the crate dependency) and hands back a transient backend to ask plus the mem’s schema pin when its config declares one, so the cross-schema edge routing can keep its authority without a mount. The validity key for derived-structure memos (flywheel W8/01): the store generation (bumped by every store mutation, carried by Store::clone so batch rollback restores it) plus the schemas epoch (bumped by every change to the engine’s schema map). A memo is current exactly while both halves still match.

Fields

store_generation: u64

schemas_epoch: u64

Trait Implementations

impl Clone for DerivedKey

fn clone(&self) -> DerivedKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DerivedKey

impl Debug for DerivedKey

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

Formats the value using the given formatter.

impl Eq for DerivedKey

impl PartialEq for DerivedKey

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DerivedKey