Enum aopt::opt::Style

#[non_exhaustive]
pub enum Style {
    Null,
    Pos,
    Cmd,
    Main,
    Boolean,
    Argument,
    Combined,
    Reserve(u64),
}

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(base on 1 !!!).

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.

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.

Reserve(u64)

Reserve using for user define style option.

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<'de> Deserialize<'de> for Style

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Style> 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<Style> 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 Serialize for Style

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Style

impl Eq for Style

impl StructuralEq for Style

impl StructuralPartialEq for Style