Enum OptionArgumentSpec 

#[non_exhaustive]
pub enum OptionArgumentSpec {
    None,
    Required,
}

Specification for an options’s argument

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

The option does not take an argument. (default)

Required

The option requires an argument.

Trait Implementations

impl Clone for OptionArgumentSpec

fn clone(&self) -> OptionArgumentSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionArgumentSpec

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

Formats the value using the given formatter.

impl Default for OptionArgumentSpec

fn default() -> OptionArgumentSpec

Returns the “default value” for a type.

impl PartialEq for OptionArgumentSpec

fn eq(&self, other: &OptionArgumentSpec) -> 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 Copy for OptionArgumentSpec

impl Eq for OptionArgumentSpec

impl StructuralPartialEq for OptionArgumentSpec