Struct Refused 

pub struct Refused {
    pub query: String,
    pub problems: Vec<String>,
    pub alternatives: Vec<String>,
}

A query the data cannot answer, and what it can answer instead.

This is the type that carries the engine’s central promise. It is an error rather than an empty result because those are different facts, and conflating them is how a confident wrong answer gets produced.

Fields

query: String

the query as given

problems: Vec<String>

one line per problem, already phrased for a reader

alternatives: Vec<String>

tags or categories that do exist and are close to what was asked

Trait Implementations

impl Clone for Refused

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 Refused

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

Formats the value using the given formatter.

impl Display for Refused

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

Formats the value using the given formatter.

impl Error for Refused

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.