Enum ParsedValue 

pub enum ParsedValue {
    Single(String),
    Multiple(Vec<String>),
    Count(usize),
    Flag(bool),
    Unset,
    FlagNeedsValue,
}

A parsed value from the command line.

Variants

Single(String)

A single string value.

Multiple(Vec<String>)

Multiple string values (for append or multi-valued options).

Count(usize)

A count of occurrences.

Flag(bool)

A boolean flag value.

Unset

Value was not set (placeholder for missing optional values).

FlagNeedsValue

Option was used as a flag without providing a value. This happens when an optional-value option (like --opt) is used without a value and the next token looks like another option. The command layer should handle this by prompting or using a flag_value.

Implementations

impl ParsedValue

pub fn is_unset(&self) -> bool

Check if the value is unset.

pub fn as_single(&self) -> Option<&str>

Get as a single string, if applicable.

pub fn as_multiple(&self) -> Option<&[String]>

Get as multiple strings, if applicable.

pub fn as_count(&self) -> Option<usize>

Get as a count, if applicable.

pub fn as_flag(&self) -> Option<bool>

Get as a flag, if applicable.

Trait Implementations

impl Clone for ParsedValue

fn clone(&self) -> ParsedValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParsedValue

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

Formats the value using the given formatter.

impl PartialEq for ParsedValue

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for ParsedValue