proc_micro

Struct WithSpan

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pub struct WithSpan<T>(pub T, pub Span);
Expand description

Helper type for parsing a type and preserving the original span

Used with syn::punctuated::Punctuated to capture the inner span of an attribute.

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§0: T§1: Span

Trait Implementations§

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impl<T: Debug> Debug for WithSpan<T>

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

Formats the value using the given formatter. Read more
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impl<T: Parse> Parse for WithSpan<T>

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fn parse(input: ParseStream<'_>) -> Result<Self>

Auto Trait Implementations§

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impl<T> Freeze for WithSpan<T>
where T: Freeze,

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impl<T> RefUnwindSafe for WithSpan<T>
where T: RefUnwindSafe,

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impl<T> !Send for WithSpan<T>

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impl<T> !Sync for WithSpan<T>

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impl<T> Unpin for WithSpan<T>
where T: Unpin,

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impl<T> UnwindSafe for WithSpan<T>
where 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, 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.