Enum CallError 

pub enum CallError {
    Unidentified,
    Unknown(String),
    NotEntitled(Feature),
    Failed(String),
    InputRequired(Vec<Ask>),
    NoTask(String),
    Unavailable(String),
}

Why a call returned no result.

Variants

Unidentified

The identity seam refused the caller.

Unknown(String)

NotEntitled(Feature)

Failed(String)

The arguments did not parse, or the operation failed; the message says which.

InputRequired(Vec<Ask>)

The operation asked the user these questions; the client answers and calls again.

NoTask(String)

No task with this id is kept for the caller.

Unavailable(String)

The task store failed.

Trait Implementations

impl Debug for CallError

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

Formats the value using the given formatter.

impl Display for CallError

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

Formats the value using the given formatter.

impl Error for CallError

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 CallError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CallError