Enum aopt::opt::Style

#[non_exhaustive]
pub enum Style {
    Null,
    Pos,
    Cmd,
    Main,
    Boolean,
    Argument,
    Combined,
    Flag,
}

Option style

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.

Null

Pos

The style indicate the NOA are set base on position.

Cmd

The style indicate the NOA are set in first position(@1).

Main

The Main style NOA no need set, its callback will always be called.

Boolean

The style indicate option don’t need argument, such as --boolean, -b or with no prefix b. Using it with Boolean.

Argument

The style indicate the option need an argument, such as --int=42, -i 42 or --str=foo.

Combined

The style indicate option support set multiple option in one string, such as -ade means set -a, -d and -e.

Flag

The style indicate option don’t need argument, such as --boolean, -b or with no prefix b. Using it with Flag.

Trait Implementations

impl Clone for Style

fn clone(&self) -> Style

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Style

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

Formats the value using the given formatter.

impl Default for Style

fn default() -> Self

Returns the “default value” for a type.

impl Display for Style

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

Formats the value using the given formatter.

impl Hash for Style

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 Ord for Style

fn cmp(&self, other: &Style) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Style

fn eq(&self, other: &Style) -> 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 PartialOrd for Style

fn partial_cmp(&self, other: &Style) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Style

impl Eq for Style

impl StructuralPartialEq for Style