Enum LimitError 

#[non_exhaustive]
pub enum LimitError {
    #[non_exhaustive]
    UnknownMetric {
        id: String,
    },
    #[non_exhaustive]
    NotFinite {
        id: &'static str,
        limit: f64,
    },
    #[non_exhaustive]
    Negative {
        id: &'static str,
        limit: f64,
    },
    #[non_exhaustive]
    BadRatio {
        ratio: f64,
    },
}

Why a limit was rejected by Threshold::check or a soft ratio by Threshold::soft_limit.

The Display rendering is a bare message with no severity prefix; the presenting layer adds one.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

#[non_exhaustive]

UnknownMetric

The metric id is not in METRICS.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

id: String

The id as given.

#[non_exhaustive]

NotFinite

The limit is NaN or infinite, which would silently disable a strict comparison gate.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

id: &'static str

The metric id.

limit: f64

The rejected limit.

#[non_exhaustive]

Negative

A negative limit on a Scale::Ratio metric, whose values are counts and cannot be negative.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

id: &'static str

The metric id.

limit: f64

The rejected limit.

#[non_exhaustive]

BadRatio

A soft-tier ratio outside (0, 1], or not finite.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

ratio: f64

The rejected ratio.

Trait Implementations

impl Clone for LimitError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LimitError

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

Formats the value using the given formatter.

impl Display for LimitError

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

Formats the value using the given formatter.

impl Error for LimitError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl PartialEq for LimitError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LimitError