Enum CliOptionError 

pub enum CliOptionError {
    InvalidName(OptionNameError),
    MissingLongPrefix,
    MissingEquals,
}

Errors for primitive CLI option construction.

Variants

InvalidName(OptionNameError)

The option name was invalid.

MissingLongPrefix

The token did not begin with --.

MissingEquals

The token did not contain an equals sign.

Trait Implementations

impl Clone for CliOptionError

fn clone(&self) -> CliOptionError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CliOptionError

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

Formats the value using the given formatter.

impl Display for CliOptionError

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

Formats the value using the given formatter.

impl Error for CliOptionError

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<OptionNameError> for CliOptionError

fn from(error: OptionNameError) -> Self

Converts to this type from the input type.

impl PartialEq for CliOptionError

fn eq(&self, other: &CliOptionError) -> 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 CliOptionError

impl StructuralPartialEq for CliOptionError