Enum EngineError 

pub enum EngineError {
    UnknownSource {
        name: String,
        configured: String,
    },
    Token {
        message: String,
    },
    NoSources,
}

What the engine refuses before it asks any source.

Distinct from a SourceFailure, which is one source failing while the others answer: everything here means the request itself cannot be run at all.

Variants

UnknownSource

A --source named something no configuration configures.

Fields

name: String

The name that was asked for.

configured: String

The names that exist, for the message.

Token

A --page token that decodes but does not belong to this query.

Fields

message: String

What the token claims that this configuration cannot honour.

NoSources

Nothing at all is configured, so there is nothing to ask.

Trait Implementations

impl Clone for EngineError

fn clone(&self) -> EngineError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EngineError

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

Formats the value using the given formatter.

impl Display for EngineError

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

Formats the value using the given formatter.

impl Eq for EngineError

impl Error for EngineError

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 EngineError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EngineError