Struct VarError

pub struct VarError<K: AsRef<OsStr>> { /* private fields */ }

Describes a variable retrieval failure

Trait Implementations

impl<K: Clone + AsRef<OsStr>> Clone for VarError<K>

fn clone(&self) -> VarError<K>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<K: Debug + AsRef<OsStr>> Debug for VarError<K>

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

Formats the value using the given formatter.

impl<K: AsRef<OsStr>> Display for VarError<K>

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

Formats the value using the given formatter.

impl<K: AsRef<OsStr> + Debug + Any> Error for VarError<K>

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

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<K: PartialEq + AsRef<OsStr>> PartialEq for VarError<K>

fn eq(&self, other: &VarError<K>) -> 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<K: Eq + AsRef<OsStr>> Eq for VarError<K>

impl<K: AsRef<OsStr>> StructuralPartialEq for VarError<K>