Enum getargs::Error

pub enum Error<'a> {
    UnknownOpt(Opt<'a>),
    RequiresValue(Opt<'a>),
    DoesNotRequireValue(Opt<'a>),
    InvalidValue {
        opt: Opt<'a>,
        desc: String,
        value: &'a str,
    },
    InvalidArg {
        desc: String,
        value: &'a str,
    },
}

A parse error.

Variants

UnknownOpt(Opt<'a>)

An unknown option was passed.

RequiresValue(Opt<'a>)

The option requires a value, but one was not supplied.

DoesNotRequireValue(Opt<'a>)

The option does not require a value, but one was supplied.

InvalidValue

A value for an option could not be parsed.

Fields of InvalidValue

opt: Opt<'a>desc: Stringvalue: &'a str

InvalidArg

A positional argument could not be parsed.

Fields of InvalidArg

desc: Stringvalue: &'a str

Trait Implementations

impl<'a> Clone for Error<'a>

fn clone(&self) -> Error<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Eq for Error<'a>

impl<'a> PartialEq<Error<'a>> for Error<'a>

fn eq(&self, other: &Error<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Error<'a>) -> bool

This method tests for !=.

impl<'_> Display for Error<'_>

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

Formats the value using the given formatter.

impl<'a> Debug for Error<'a>

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

Formats the value using the given formatter.

impl<'a> StructuralPartialEq for Error<'a>

impl<'a> StructuralEq for Error<'a>

impl<'_> Error for Error<'_>

fn description(&self) -> &str

This method is soft-deprecated.

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

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

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error ocurred.