Enum ProviderError 

#[non_exhaustive]
pub enum ProviderError {
    DataUnavailable(String),
    Backend(String),
}

Errors produced by a VarProvider.

Intentionally a small enum — the TUI only renders the message to the user and does not branch on the cause. Concrete error types from the wrapped backend should be stringified into one of these variants by the VarProvider implementation.

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.

DataUnavailable(String)

The provider could not be reached or its data is temporarily unavailable (e.g. locked metadata store, dropped connection).

Backend(String)

The underlying backend reported an error.

Trait Implementations

impl Debug for ProviderError

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

Formats the value using the given formatter.

impl Display for ProviderError

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

Formats the value using the given formatter.

impl Error for ProviderError

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 From<ProviderError> for TuiError

fn from(source: ProviderError) -> Self

Converts to this type from the input type.