Struct NonOwning

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pub struct NonOwning<'a, T> { /* private fields */ }
Expand description

A non-owning value for lifetime 'a.

Used for FFI functions that accept data by value, but don’t destroy or move out of it. This is guaranteed to have the same layout as T.

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impl<T> NonOwning<'_, T>

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pub const fn new(value: T) -> NonOwning<'_, T>

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impl<T> Debug for NonOwning<'_, T>
where T: 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<T> Default for NonOwning<'_, T>
where T: Default,

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fn default() -> NonOwning<'_, T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<'a, T> Freeze for NonOwning<'a, T>
where T: Freeze,

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impl<'a, T> RefUnwindSafe for NonOwning<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> Send for NonOwning<'a, T>
where T: Send,

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impl<'a, T> Sync for NonOwning<'a, T>
where T: Sync,

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impl<'a, T> Unpin for NonOwning<'a, T>
where T: Unpin,

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impl<'a, T> UnwindSafe for NonOwning<'a, T>
where T: UnwindSafe,

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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<T> IntoResult<T> for T

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type Error = Infallible

The error type in the returned Result.
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fn into_result(self) -> Result<T, <T as IntoResult<T>>::Error>

Converts the value into a Result.
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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.
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impl<T> MaybeSend for T