Struct StringValueParser

#[non_exhaustive]
pub struct StringValueParser {}

Implementation for ValueParser::string

Useful for composing new TypedValueParsers

Implementations

impl StringValueParser

pub fn new() -> StringValueParser

Implementation for ValueParser::string

Trait Implementations

impl Clone for StringValueParser

fn clone(&self) -> StringValueParser

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StringValueParser

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

Formats the value using the given formatter.

impl Default for StringValueParser

fn default() -> StringValueParser

Returns the “default value” for a type.

impl TypedValueParser for StringValueParser

type Value = String

Argument’s value type

fn parse_ref( &self, cmd: &Command, arg: Option<&Arg>, value: &OsStr, ) -> Result<<StringValueParser as TypedValueParser>::Value, Error>

Parse the argument value

fn parse( &self, cmd: &Command, _arg: Option<&Arg>, value: OsString, ) -> Result<<StringValueParser as TypedValueParser>::Value, Error>

Parse the argument value

fn parse_ref_( &self, cmd: &Command, arg: Option<&Arg>, value: &OsStr, _source: ValueSource, ) -> Result<Self::Value, Error>

Parse the argument value

fn parse_( &self, cmd: &Command, arg: Option<&Arg>, value: OsString, _source: ValueSource, ) -> Result<Self::Value, Error>

Parse the argument value

fn possible_values( &self, ) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>>

Reflect on enumerated value properties

fn map<T, F>(self, func: F) -> MapValueParser<Self, F>

where T: Send + Sync + Clone, F: Fn(Self::Value) -> T + Clone,

Adapt a TypedValueParser from one value to another

fn try_map<T, E, F>(self, func: F) -> TryMapValueParser<Self, F>

where F: Fn(Self::Value) -> Result<T, E> + Clone + Send + Sync + 'static, T: Send + Sync + Clone, E: Into<Box<dyn Error + Send + Sync>>,

Adapt a TypedValueParser from one value to another

impl Copy for StringValueParser

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

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