Enum OptRole 

pub enum OptRole {
    Fired,
    Enabler,
    Preempted,
}

Why an optimization appears in a program’s relationship_tree.

Variants

Fired

It fired for this program.

Enabler

A requires-parent pulled in so a fired/preempted descendant has its dependency shown — it did not itself fire (e.g. oracle for a program that fires unchecked but produces no oracle-folded constant).

Preempted

It had a candidate site but a higher-precedence optimization claimed it (a preempts loser) — it is enabled, and would fire if its winner were turned off. The “skipped because they don’t play nice together” node.

Trait Implementations

impl Clone for OptRole

fn clone(&self) -> OptRole

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptRole

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

Formats the value using the given formatter.

impl PartialEq for OptRole

fn eq(&self, other: &OptRole) -> 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 Copy for OptRole

impl Eq for OptRole

impl StructuralPartialEq for OptRole