Enum PropertyResolutionError 

pub enum PropertyResolutionError {
    InvalidRequest,
    ResponseRequestMismatch,
    InexactEvidence,
    InvalidValue,
    Incomplete(String),
    Conflicting(String),
    Unavailable(String),
    NotRecorded(String),
    MissingService(String),
    UnreadableValue(Box<UnreadableValue>),
}

Failure to resolve a property conclusively.

Variants

InvalidRequest

The requested property reference is malformed.

ResponseRequestMismatch

Returned data names another object or property.

InexactEvidence

A conclusive answer lacks exact, reviewable provenance.

InvalidValue

A conclusive answer contains a value that is not a valid value of its kind: a non-finite number, or text that is not the date its source type declares.

Incomplete(String)

The source could answer only part of the request scope.

Conflicting(String)

Mutually incompatible exact facts were returned.

Unavailable(String)

The source cannot currently provide a conclusive answer.

NotRecorded(String)

The source records this kind of property for no object at all (a model with no presentation layers), so an object’s missing value is no evidence of absence. The message describes the source, never the object, so every object of the source answers identically.

MissingService(String)

The run registered no service that could answer the request, for any object (a measured value without geometry). The message describes the run, never the object.

UnreadableValue(Box<UnreadableValue>)

The property is present and states a value of a type the source declares exactly, but the value cannot be read exactly (a measure whose unit does not resolve). What depends on the declared type and on presence alone is decided; the value is not.

Trait Implementations

impl Clone for PropertyResolutionError

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 PropertyResolutionError

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

Formats the value using the given formatter.

impl Display for PropertyResolutionError

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

Formats the value using the given formatter.

impl Eq for PropertyResolutionError

impl Error for PropertyResolutionError

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 PropertyResolutionError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PropertyResolutionError