Enum PlacementConstraintError 

#[non_exhaustive]
pub enum PlacementConstraintError {
    DuplicateEngine {
        engine_id: EngineId,
        first_index: usize,
        duplicate_index: usize,
    },
}

Reports invalid placement constraints.

Examples

use tenferro_runtime::{EngineId, PlacementConstraintError, ProgramPlacementConstraint};

let engine = EngineId::new("tenferro.cpu").unwrap();
let error = ProgramPlacementConstraint::new(vec![engine.clone(), engine], None).unwrap_err();
assert!(matches!(error, PlacementConstraintError::DuplicateEngine { .. }));

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.

DuplicateEngine

The same engine appears more than once in a preference list.

Fields

engine_id: EngineId

The duplicated engine identifier.

first_index: usize

The first position where the engine appeared.

duplicate_index: usize

The duplicate position that failed validation.

Trait Implementations

impl Debug for PlacementConstraintError

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

Formats the value using the given formatter.

impl Display for PlacementConstraintError

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

Formats the value using the given formatter.

impl Error for PlacementConstraintError

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 PlacementConstraintError

fn eq(&self, other: &PlacementConstraintError) -> 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 Eq for PlacementConstraintError

impl StructuralPartialEq for PlacementConstraintError