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Projection

zerocopy::pointer::cast

Struct Projection 

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pub struct Projection<F: ?Sized, const VARIANT_ID: i128, const FIELD_ID: i128> { /* private fields */ }
Expand description

A field projection

A Projection is a Project which implements projection by delegating to an implementation of HasField::project.

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impl<T, F, const VARIANT_ID: i128, const FIELD_ID: i128> Project<T, <T as HasField<F, VARIANT_ID, FIELD_ID>>::Type> for Projection<F, VARIANT_ID, FIELD_ID>
where T: HasField<F, VARIANT_ID, FIELD_ID> + ?Sized,

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fn project(src: PtrInner<'_, T>) -> *mut T::Type

Projects a pointer from Src to Dst. Read more
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impl<T, F, const FIELD_ID: i128> Cast<T, <T as HasField<F, { crate::REPR_C_UNION_VARIANT_ID }, FIELD_ID>>::Type> for Projection<F, { crate::REPR_C_UNION_VARIANT_ID }, FIELD_ID>
where T: HasField<F, { crate::REPR_C_UNION_VARIANT_ID }, FIELD_ID> + ?Sized,

Auto Trait Implementations§

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> Freeze for Projection<F, VARIANT_ID, FIELD_ID>
where F: ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> RefUnwindSafe for Projection<F, VARIANT_ID, FIELD_ID>
where F: RefUnwindSafe + ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> Send for Projection<F, VARIANT_ID, FIELD_ID>
where F: Send + ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> Sync for Projection<F, VARIANT_ID, FIELD_ID>
where F: Sync + ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> Unpin for Projection<F, VARIANT_ID, FIELD_ID>
where F: Unpin + ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> UnsafeUnpin for Projection<F, VARIANT_ID, FIELD_ID>
where F: ?Sized,

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impl<F, const VARIANT_ID: i128, const FIELD_ID: i128> UnwindSafe for Projection<F, VARIANT_ID, FIELD_ID>
where F: UnwindSafe + ?Sized,

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> SizedTypeProperties for T

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#[doc(hidden)]
const SIZE: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)
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#[doc(hidden)]
const ALIGN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)
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#[doc(hidden)]
const ALIGNMENT: Alignment = _

🔬This is a nightly-only experimental API. (ptr_alignment_type)
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#[doc(hidden)]
const IS_ZST: bool = _

🔬This is a nightly-only experimental API. (sized_type_properties)
true if this type requires no storage. false if its size is greater than zero. Read more
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#[doc(hidden)]
const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)
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#[doc(hidden)]
const MAX_SLICE_LEN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)
The largest safe length for a [Self]. 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.
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,