argle

Struct WithDefault

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pub struct WithDefault<P, T> { /* private fields */ }

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impl<P, T> Param for WithDefault<P, T>
where T: Clone + Display, P: Param<Item = Option<T>>,

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type Item = T

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type Error = <P as Param>::Error

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fn update_options(&self, opts: &mut Options, notes: Notes)

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fn name(&self) -> String

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fn get(&self, matches: &Matches) -> Result<Self::Item, Self::Error>

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fn parse<C: IntoIterator>( &self, args: C, which_notes_to_document: WhichNotes, ) -> (Result<Self::Item, TopLevelError<Self::Error>>, Usage)
where C::Item: AsRef<OsStr>,

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fn parse_env( &self, which_notes_to_document: WhichNotes, program_name: ProgramName, ) -> (Result<Self::Item, TopLevelError<Self::Error>>, UsageWithProgramName)

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fn parse_env_default( &self, ) -> (Result<Self::Item, TopLevelError<Self::Error>>, UsageWithProgramName)

Auto Trait Implementations§

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impl<P, T> Freeze for WithDefault<P, T>
where P: Freeze, T: Freeze,

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impl<P, T> RefUnwindSafe for WithDefault<P, T>
where P: RefUnwindSafe, T: RefUnwindSafe,

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impl<P, T> Send for WithDefault<P, T>
where P: Send, T: Send,

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impl<P, T> Sync for WithDefault<P, T>
where P: Sync, T: Sync,

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impl<P, T> Unpin for WithDefault<P, T>
where P: Unpin, T: Unpin,

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impl<P, T> UnwindSafe for WithDefault<P, T>
where P: UnwindSafe, T: 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> 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<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<P> ParamBoolExt for P
where P: Param<Item = bool> + ?Sized,

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fn some_if<T>(self, value: T) -> SomeIf<Self, T>
where Self: Sized,

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fn unit_option(self) -> UnitOption<Self>
where Self: Sized,

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impl<P> ParamExt for P
where P: Param + ?Sized,

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fn map<U, F>(self, f: F) -> Map<Self, F>
where F: Fn(Self::Item) -> U, Self: Sized,

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fn try_map<U, E, F>(self, f: F) -> TryMap<Self, F>
where E: Debug, F: Fn(Self::Item) -> Result<U, E>, Self: Sized,

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fn join<B>(self, b: B) -> Join<Self, B>
where B: Param, Self: Sized,

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fn convert<F, U, E>(self, f: F) -> Convert<Self, F>
where E: Debug + Display, F: Fn(&Self::Item) -> Result<U, E>, Self: Sized, Self::Item: Clone + Debug,

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fn rename(self, name: String) -> Rename<Self>
where Self: Sized,

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fn add_note(self, note: Note) -> AddNote<Self>
where Self: Sized,

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fn set_notes_to_document( self, which_notes_to_document: WhichNotes, ) -> SetNotesToDocument<Self>
where Self: Sized,

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fn with_help(self, help: Flag) -> WithHelp<Self>
where Self: Sized,

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fn with_default_help(self) -> WithHelp<Self>
where Self: Sized,

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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.