Enum ArgAction 

pub enum ArgAction {
    Set,
    Help,
    HelpShort,
    HelpLong,
    HelpAll,
    Version,
}

What supplying a declared flag does.

Variants

Set

Bind the flag to its declared field.

Help

Show help, choosing the long form for a long spelling and the short form otherwise.

HelpShort

Always show short help.

HelpLong

Always show long help.

HelpAll

Show long help for this command and every visible descendant.

Version

Show version information.

Trait Implementations

impl Clone for ArgAction

fn clone(&self) -> ArgAction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ArgAction

impl Debug for ArgAction

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

Formats the value using the given formatter.

impl Default for ArgAction

fn default() -> ArgAction

Returns the “default value” for a type.

impl Eq for ArgAction

impl PartialEq for ArgAction

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ArgAction