Struct Explanation 

#[non_exhaustive]
pub struct Explanation<A> {
    pub id: A,
    pub allowed: bool,
    pub utility: Score,
    pub contributions: Vec<Contribution>,
}

Why an action was chosen: its id, final utility, and the per-consideration breakdown (in declaration order) that produced it.

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.

id: A

The chosen action’s id.

allowed: bool

Whether the chosen action was permitted. false means every action was gated off and this one won only by tie-break — its utility is zero.

utility: Score

The winning utility score.

contributions: Vec<Contribution>

One entry per consideration, in declaration order.

Trait Implementations

impl<A: Clone> Clone for Explanation<A>

fn clone(&self) -> Explanation<A>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<A: Debug> Debug for Explanation<A>

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

Formats the value using the given formatter.

impl<A: Eq> Eq for Explanation<A>

impl<A: PartialEq> PartialEq for Explanation<A>

fn eq(&self, other: &Explanation<A>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A> StructuralPartialEq for Explanation<A>