Enum HostError 

#[non_exhaustive]
pub enum HostError {
    Denied(String),
    StaleContext,
    CommandContextRequired,
    InvalidArgument(String),
    NotFound(String),
    Timeout,
    Cancelled,
    Io(String),
    Failed(String),
}

host-error: failure of a host import.

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.

Denied(String)

Permission missing (names the permission).

StaleContext

Session replaced since this call started.

CommandContextRequired

Session-replacing operations need a command or shortcut context.

InvalidArgument(String)

Invalid argument.

NotFound(String)

Not found.

Timeout

Timed out.

Cancelled

Cancelled.

Io(String)

I/O failure.

Failed(String)

Anything else.

Implementations

impl HostError

pub fn unsupported(capability: &str) -> Self

The host does not implement capability (yet).

pub fn io(err: &Error) -> Self

Wraps an I/O error.

Trait Implementations

impl Clone for HostError

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 HostError

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

Formats the value using the given formatter.

impl Display for HostError

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

Formats the value using the given formatter.

impl Eq for HostError

impl Error for HostError

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 HostError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HostError