Struct CouplingAdjustment 

pub struct CouplingAdjustment {
    pub condition: String,
    pub delta_ns: i64,
}

One conditional cost contribution attached to a Candidate. Phase 1.1 ships the struct shape with an inert default; Phase 2’s transfer-op insertion is the first session that constructs real instances.

The conditional is intentionally minimal — condition describes the predicate (“downstream decision point N picks a non-co-located backend”) and delta_cost is the additive correction. Phase 2 will likely grow richer predicates (e.g. specific adjacent-node alternative identity); the placeholder is good enough to let the surrounding types stabilize.

Fields

condition: String

Opaque tag describing what conditions this adjustment fires under. Phase 2 will replace this with a richer predicate type; the current String is a stand-in to keep Phase 1.1 from over-committing on a representation that Phase 2’s needs will shape.

delta_ns: i64

Additive nanosecond correction to the candidate’s static cost when condition holds.

Trait Implementations

impl Clone for CouplingAdjustment

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CouplingAdjustment

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

Formats the value using the given formatter.

impl Default for CouplingAdjustment

fn default() -> Self

Returns the “default value” for a type.

impl Eq for CouplingAdjustment

impl PartialEq for CouplingAdjustment

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CouplingAdjustment