Enum SpecError 

#[non_exhaustive]
pub enum SpecError {
    Downstream {
        message: String,
        source: Option<Box<dyn Error + Send + Sync + 'static>>,
    },
    Config(String),
}

Errors raised by klieo-spec traits and the loop runner.

Marked #[non_exhaustive] so additional variants can be introduced without a major-version bump on impl crates that match on the enum.

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.

Downstream

A downstream Decomposer/Critic/Refiner impl failed.

Carries a context message plus the impl’s original error as #[source] so e.source() traversal preserves the cause chain. Covers any downstream trait-impl failure that does not fit the typed variants.

Fields

message: String

Human-readable context describing the wrap site.

source: Option<Box<dyn Error + Send + Sync + 'static>>

Underlying error preserved for std::error::Error::source().

Config(String)

A misconfiguration in the loop (e.g. zero max iterations).

Trait Implementations

impl Debug for SpecError

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

Formats the value using the given formatter.

impl Display for SpecError

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

Formats the value using the given formatter.

impl Error for SpecError

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.