Enum Error 

pub enum Error {
    Http(String),
    Status {
        status: u16,
        message: String,
    },
    Decode(String),
    DuplicateQuestion(String),
    Invalid {
        id: String,
        why: String,
    },
    MissingAnswer(String),
    WrongType {
        id: String,
        expected: &'static str,
        found: String,
    },
    MissingProbability {
        id: String,
        label: String,
    },
}

Errors are kept as owned data so they stay Send + Sync on wasm32, where the underlying fetch errors are not.

Variants

Http(String)

The request could not be sent or its reply could not be read.

Status

The endpoint answered with a non-success status; message is its error message, or the start of the body when it has none.

Fields

status: u16

message: String

Decode(String)

A request could not be encoded or a reply could not be decoded.

DuplicateQuestion(String)

The same question id was given twice, so one question would have replaced the other.

Invalid

A question cannot be answered as asked: too many options, an option twice, no levels.

Fields

id: String

why: String

MissingAnswer(String)

The reply has no answer under this question id.

WrongType

The answer under id is of another type than the one asked for.

Fields

id: String

expected: &'static str

found: String

MissingProbability

The answer under id gives no probability for one of its levels or options, which rules need: reading it as zero would be a confident no that nothing said.

Fields

id: String

label: String

Trait Implementations

impl Clone for Error

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 Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Error