Enum clap::builder::ArgPredicate

pub enum ArgPredicate {
    IsPresent,
    Equals(OsStr),
}

Operations to perform on argument values

These do not apply to ValueSource::DefaultValue

Variants

IsPresent

Is the argument present?

Equals(OsStr)

Does the argument match the specified value?

Trait Implementations

impl Clone for ArgPredicate

fn clone(&self) -> ArgPredicate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ArgPredicate

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

Formats the value using the given formatter.

impl<S> From<S> for ArgPredicatewhere
    S: Into<OsStr>,

fn from(other: S) -> ArgPredicate

Converts to this type from the input type.

impl PartialEq<ArgPredicate> for ArgPredicate

fn eq(&self, other: &ArgPredicate) -> bool

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ArgPredicate

impl StructuralEq for ArgPredicate

impl StructuralPartialEq for ArgPredicate