pub enum PointerCoercion {
    ReifyFnPointer,
    UnsafeFnPointer,
    ClosureFnPointer(Safety),
    MutToConstPointer,
    ArrayToPointer,
    Unsize,
}

Variants§

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ReifyFnPointer

Go from a fn-item type to a fn-pointer type.

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UnsafeFnPointer

Go from a safe fn pointer to an unsafe fn pointer.

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ClosureFnPointer(Safety)

Go from a non-capturing closure to an fn pointer or an unsafe fn pointer. It cannot convert a closure that requires unsafe.

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MutToConstPointer

Go from a mut raw pointer to a const raw pointer.

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ArrayToPointer

Go from *const [T; N] to *const T

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Unsize

Unsize a pointer/reference value, e.g., &[T; n] to &[T]. Note that the source could be a thin or fat pointer. This will do things like convert thin pointers to fat pointers, or convert structs containing thin pointers to structs containing fat pointers, or convert between fat pointers.

Trait Implementations§

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impl Clone for PointerCoercion

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fn clone(&self) -> PointerCoercion

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PointerCoercion

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

  • ReifyFnPointer: 0 bytes
  • UnsafeFnPointer: 0 bytes
  • ClosureFnPointer: 1 byte
  • MutToConstPointer: 0 bytes
  • ArrayToPointer: 0 bytes
  • Unsize: 0 bytes