Struct pflag::Slice

pub struct Slice<T> { /* fields omitted */ }

Slice is used for creating multi-valued flags.

Implementations

impl<T> Slice<T>

pub fn new() -> Self

Constructs a new, empty Slice. Do not use this constructor for setting defaults. Instead, use the provided from method.

pub fn with_capacity(capacity: usize) -> Self

Constructs a new, empty Slice with the specified capacity. Do not use this constructor for setting defaults. Instead, use the provided from method.

pub fn len(&self) -> usize

Returns the number of elements in the slice.

Trait Implementations

impl<T: Debug> Debug for Slice<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for Slice<T>

fn default() -> Slice<T>

Returns the "default value" for a type.

impl<T, V: Into<Vec<T>>> From<V> for Slice<T>

fn from(v: V) -> Self

Constructs a Slice from anything a Vec can be constructed from. This method should be used anytime you desire default values to be set.

impl<E, T> FromStr for Slice<T> where
    E: Error + 'static,
    T: FromStr<Err = E>, 

type Err = T::Err

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<E, T> Value for Slice<T> where
    E: Error + 'static,
    T: ToString + FromStr<Err = E>, 

fn typ(&self) -> &str

typ returns the type name as a string.

fn set(&mut self, val: String) -> Result<(), ValueError>

set sets the underlying value.

fn value(&self) -> String

value retrieves the current value as a String.