Enum Hotness 

pub enum Hotness {
    Hot,
    Cold,
    Unknown,
}

What a hotness question can answer.

Three answers rather than two, because the third one is real. Section 11.4 is specific that a consumer has to handle it explicitly rather than folding it into either of the others, and the two directions it could be folded are both wrong: treating unknown as hot puts cold code in the hot section, and treating it as cold puts the hot path there instead.

Variants

Hot

It runs often enough to spend on.

Cold

It does not.

Unknown

There is no data that answers this, and there is no defensible guess either.

Trait Implementations

impl Clone for Hotness

fn clone(&self) -> Hotness

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Hotness

impl Debug for Hotness

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

Formats the value using the given formatter.

impl Eq for Hotness

impl Hash for Hotness

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Hotness

fn cmp(&self, other: &Hotness) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for Hotness

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Hotness

fn partial_cmp(&self, other: &Hotness) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Hotness