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## MapValueParser

# Struct MapValueParser

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    pub struct MapValueParser<P, F> { /* private fields */ }

Expand description

Adapt a `TypedValueParser` from one value to another

See `TypedValueParser::map`

## Trait Implementations§

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### impl<P, F> Clone for MapValueParser<P, F>
where P: Clone, F: Clone,

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#### fn clone(&self) -> MapValueParser<P, F>

Returns a duplicate of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl<P, F> Debug for MapValueParser<P, F>
where P: Debug, F: Debug,

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

Formats the value using the given formatter. Read more
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### impl<P, F, T> TypedValueParser for MapValueParser<P, F>
where P: TypedValueParser, <P as TypedValueParser>::Value: Send + Sync + Clone, F: Fn(<P as TypedValueParser>::Value) -> T + Clone + Send + Sync + 'static, T: Send + Sync + Clone,

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#### type Value = T

Argument’s value type
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#### fn parse_ref( &self, cmd: &Command, arg: Option<&Arg>, value: &OsStr, ) -> Result<<MapValueParser<P, F> as TypedValueParser>::Value, Error>

Parse the argument value Read more
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#### fn parse( &self, cmd: &Command, arg: Option<&Arg>, value: OsString, ) -> Result<<MapValueParser<P, F> as TypedValueParser>::Value, Error>

Parse the argument value Read more
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#### fn possible_values( &self, ) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>>

Reflect on enumerated value properties Read more
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#### fn parse_ref_( &self, cmd: &Command, arg: Option<&Arg>, value: &OsStr, _source: ValueSource, ) -> Result<Self::Value, Error>

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

Parse the argument value Read more
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#### 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 Read more
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#### 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 + Sync + Send>>,

Adapt a `TypedValueParser` from one value to another Read more

## Auto Trait Implementations§

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### impl<P, F> Freeze for MapValueParser<P, F>
where P: Freeze, F: Freeze,

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### impl<P, F> RefUnwindSafe for MapValueParser<P, F>
where P: RefUnwindSafe, F: RefUnwindSafe,

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### impl<P, F> Send for MapValueParser<P, F>
where P: Send, F: Send,

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### impl<P, F> Sync for MapValueParser<P, F>
where P: Sync, F: Sync,

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### impl<P, F> Unpin for MapValueParser<P, F>
where P: Unpin, F: Unpin,

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### impl<P, F> UnsafeUnpin for MapValueParser<P, F>
where P: UnsafeUnpin, F: UnsafeUnpin,

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### impl<P, F> UnwindSafe for MapValueParser<P, F>
where P: UnwindSafe, F: UnwindSafe,

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> CloneToUninit for T
where T: Clone,

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#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<I> IntoResettable<ValueParser> for I
where I: Into<ValueParser>,

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#### fn into_resettable(self) -> Resettable<ValueParser>

Convert to the intended resettable type
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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.