Enum PresetError 

pub enum PresetError {
    NotFound,
    ReadOnlyScope,
    NoUserDirectory,
    InvalidState,
    InvalidName,
    Io(Error),
}

Why a PresetStore operation failed.

Variants

NotFound

No preset with that URI / uuid exists in any scope.

ReadOnlyScope

The operation mutates, but the preset lives in the factory or pack scope - both are read-only from the runtime’s perspective (cargo truce install owns factory; pack files belong to their distributor).

NoUserDirectory

The per-OS user preset directory could not be resolved (missing home / app-data environment).

InvalidState

The preset’s embedded state envelope doesn’t parse or belongs to a different plugin.

InvalidName

The display name is empty after sanitization.

Io(Error)

Trait Implementations

impl Debug for PresetError

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

Formats the value using the given formatter.

impl Display for PresetError

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

Formats the value using the given formatter.

impl Error for PresetError

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<Error> for PresetError

fn from(e: Error) -> PresetError

Converts to this type from the input type.