Enum ProtocolResolutionError 

#[non_exhaustive]
pub enum ProtocolResolutionError {
    NoProtocolsDeclared,
    MissingRegistrations {
        protocols: Vec<String>,
    },
    DuplicateRegistration {
        protocol: String,
    },
    OrderCycle {
        protocols: Vec<String>,
    },
    AmbiguousOrder {
        first: String,
        second: String,
    },
}

Failure to resolve a service’s protocol registrations or claim ordering.

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.

NoProtocolsDeclared

The service schema declares no protocols.

MissingRegistrations

Declared service protocols without a runtime registration, in declaration order.

Fields

protocols: Vec<String>

DuplicateRegistration

The same protocol is registered more than once.

Fields

protocol: String

OrderCycle

Registered protocols participating in ordering cycles, in registration order.

Fields

protocols: Vec<String>

AmbiguousOrder

Two served protocols have no ordering constraint relating them.

Fields

first: String

second: String

Trait Implementations

impl Debug for ProtocolResolutionError

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

Formats the value using the given formatter.

impl Display for ProtocolResolutionError

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

Formats the value using the given formatter.

impl Error for ProtocolResolutionError

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 From<ProtocolResolutionError> for RouterBuildError

fn from(source: ProtocolResolutionError) -> Self

Converts to this type from the input type.