Enum PassResult 

pub enum PassResult {
    Stable,
    Proposed,
    Failed,
}

What: What one whole policy pass over the current state ended in. An enum is a closed set of named alternatives. #[derive(...)] asks the compiler to generate copying, debug printing and ==. Why: Only a pass that proposes corrections continues the loop.

In TS you’d write (pseudocode):

type PassResult = 'stable' | 'proposed' | 'failed';

Variants

Stable

No policy proposed a correction: the findings of this pass are final.

Proposed

At least one policy proposed a correction.

Failed

The pass ended in an engine failure.

Trait Implementations

impl Clone for PassResult

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PassResult

impl Debug for PassResult

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

Formats the value using the given formatter.

impl Eq for PassResult

impl PartialEq for PassResult

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PassResult