Map

attr_parser_fn::meta

Struct Map 

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pub struct Map<T, F> { /* private fields */ }

Trait Implementations§

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impl<T, F, R> ParseMeta for Map<T, F>
where T: ParseMeta, F: FnOnce(T::Output) -> R,

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type Output = R

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fn parse(&mut self, nested: &ParseNestedMeta<'_>) -> Result<bool>

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fn conflict_alternative_arm(&self, f: &mut dyn Write) -> Result

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fn finish(self) -> Result<Self::Output>

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fn ok_to_finish(&self) -> bool

Auto Trait Implementations§

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impl<T, F> Freeze for Map<T, F>
where T: Freeze, F: Freeze,

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impl<T, F> RefUnwindSafe for Map<T, F>
where T: RefUnwindSafe, F: RefUnwindSafe,

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impl<T, F> Send for Map<T, F>
where T: Send, F: Send,

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impl<T, F> Sync for Map<T, F>
where T: Sync, F: Sync,

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impl<T, F> Unpin for Map<T, F>
where T: Unpin, F: Unpin,

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impl<T, F> UnwindSafe for Map<T, F>
where T: 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> 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> ParseMetaExt for T
where T: ParseMeta,

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fn optional(self) -> Optional<Self>

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fn map<F, R>(self, map: F) -> Map<Self, F>
where F: FnOnce(Self::Output) -> R,

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fn value<U>(self, value: U) -> impl ParseMeta<Output = U>

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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.