Enum Flag 

pub enum Flag {
    Short(ShortFlag),
    Long(LongFlag),
}

A primitive flag token.

Variants

Short(ShortFlag)

A short flag such as -v.

Long(LongFlag)

A long flag such as --verbose.

Implementations

impl Flag

pub fn try_from_token(token: &str) -> Result<Self, FlagNameError>

Parses a primitive flag token.

Errors

Returns FlagNameError when the token is not a supported short or long flag token.

pub fn to_token(&self) -> String

Returns the token form for this flag.

Trait Implementations

impl Clone for Flag

fn clone(&self) -> Flag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Flag

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

Formats the value using the given formatter.

impl Display for Flag

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

Formats the value using the given formatter.

impl Hash for Flag

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Flag

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

impl StructuralPartialEq for Flag