Enum Interest 

#[repr(u8)]
pub enum Interest {
    Unknown = 0,
    Never = 1,
    Sometimes = 2,
    Always = 3,
}

Cached interest decision for a callsite. Mirrors tracing::Interest.

• 0 (Unknown) — not yet probed; observer must be queried.
• 1 (Never) — disabled; skip the entire emit branch.
• 2 (Sometimes) — enabled but still call Observer::enabled() per emit (e.g. severity-floor
  • per-callsite allowlist).
• 3 (Always) — enabled unconditionally; skip the virtual call.

Variants

Unknown = 0

Not yet decided — observer will be queried.

Never = 1

Disabled. The emit branch is skipped after one atomic load.

Sometimes = 2

Enabled but Observer::enabled must still run.

Always = 3

Enabled unconditionally; the virtual call is skipped.

Trait Implementations

impl Clone for Interest

fn clone(&self) -> Interest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Interest

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

Formats the value using the given formatter.

impl PartialEq for Interest

fn eq(&self, other: &Interest) -> 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 Interest

impl Eq for Interest

impl StructuralPartialEq for Interest