TryMapValueParser

pretty_exec::clap::builder

Struct TryMapValueParser 

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pub struct TryMapValueParser<P, F> { /* private fields */ }
Expand description

Adapt a TypedValueParser from one value to another

See TypedValueParser::try_map

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impl<P, F> Clone for TryMapValueParser<P, F>
where P: Clone, F: Clone,

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fn clone(&self) -> TryMapValueParser<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 TryMapValueParser<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, E> TypedValueParser for TryMapValueParser<P, F>
where P: TypedValueParser, <P as TypedValueParser>::Value: Send + Sync + Clone, F: Fn(<P as TypedValueParser>::Value) -> Result<T, E> + Clone + Send + Sync + 'static, T: Send + Sync + Clone, E: Into<Box<dyn Error + Sync + Send>>,

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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<<TryMapValueParser<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, ) -> 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 TryMapValueParser<P, F>
where P: Freeze, F: Freeze,

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impl<P, F> RefUnwindSafe for TryMapValueParser<P, F>
where P: RefUnwindSafe, F: RefUnwindSafe,

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impl<P, F> Send for TryMapValueParser<P, F>
where P: Send, F: Send,

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impl<P, F> Sync for TryMapValueParser<P, F>
where P: Sync, F: Sync,

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impl<P, F> Unpin for TryMapValueParser<P, F>
where P: Unpin, F: Unpin,

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impl<P, F> UnwindSafe for TryMapValueParser<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<X> Pipe for X

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fn pipe<Return, Function>(self, f: Function) -> Return
where Self: Sized, Function: FnOnce(Self) -> Return,

Apply f to self. Read more
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fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return
where Function: FnOnce(&'a Self) -> Return,

Apply f to &self. Read more
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fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return
where Function: FnOnce(&'a mut Self) -> Return,

Apply f to &mut self. Read more
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fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return
where Self: AsRef<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait AsRef<Param>. Read more
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fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return
where Self: AsMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait AsMut<Param>. Read more
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fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return
where Self: Deref<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Deref<Target = Param>. Read more
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fn pipe_deref_mut<'a, Param, Return, Function>( &'a mut self, f: Function, ) -> Return
where Self: DerefMut<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait DerefMut<Target = Param>. Read more
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fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return
where Self: Borrow<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Borrow<Param>. Read more
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fn pipe_borrow_mut<'a, Param, Return, Function>( &'a mut self, f: Function, ) -> Return
where Self: BorrowMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait BorrowMut<Param>. Read more
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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.