Enum MetaValError

pub enum MetaValError {
    NullError(NulError),
    FromUtf8Error(FromUtf8Error),
    NegativeReturn(i32),
}

Failed fetching metadata value

Variants

NullError(NulError)

The provided string contains an unexpected null-byte

FromUtf8Error(FromUtf8Error)

The returned data contains invalid UTF8 data

NegativeReturn(i32)

Got negative return value. This happens if the key or index queried does not exist.

Trait Implementations

impl Debug for MetaValError

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

Formats the value using the given formatter.

impl Display for MetaValError

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

Formats the value using the given formatter.

impl Error for MetaValError

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<FromUtf8Error> for MetaValError

fn from(source: FromUtf8Error) -> Self

Converts to this type from the input type.

impl From<NulError> for MetaValError

fn from(source: NulError) -> Self

Converts to this type from the input type.

impl PartialEq for MetaValError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for MetaValError

impl StructuralPartialEq for MetaValError