Enum Refused

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enum Refused {
    NoPointer,
    NullPointer,
    OtherType,
}

Expand description

What an R accessor’s receiver holds instead of a live T (#1920).

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NoPointer

No external pointer at all (refuse_no_handle).

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NullPointer

A pointer without an address that T did not build.

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OtherType

A live pointer to another type.

Trait Implementations§

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impl Clone for Refused

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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Auto Trait Implementations§

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impl RefUnwindSafe for Refused

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> ConsumingFallible for T
where T: Clone,

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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 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> RClone for T
where T: Clone,

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fn r_clone(&self) -> T

Create a deep copy of this value.

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#[doc(hidden)]
unsafe extern "C" fn __RClone_r_clone_shim( data: mut c_void, argc: i32, argv: const SEXP, ) -> SEXP
where Self: Sized + RClone + IntoR,

Method shim for RClone::r_clone. Read more

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impl<T> RCopy for T
where T: Copy,

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fn copy(&self) -> T

Create a bitwise copy of this value. Read more

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fn is_copy(&self) -> bool

Check if this type implements Copy. Read more

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#[doc(hidden)]
unsafe extern "C" fn __RCopy_copy_shim( data: mut c_void, argc: i32, argv: const SEXP, ) -> SEXP
where Self: Sized + RCopy + IntoR,

Method shim for RCopy::copy. Read more

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#[doc(hidden)]
unsafe extern "C" fn __RCopy_is_copy_shim( data: mut c_void, argc: i32, argv: const SEXP, ) -> SEXP
where Self: Sized + RCopy + IntoR,

Method shim for RCopy::is_copy. Read more

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impl<T> SizeHint for T
where T: ?Sized,

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default fn lower_bound(&self) -> usize

🔬This is a nightly-only experimental API. (core_io_internals)

Returns a lower bound on the number of elements this container-like item contains. For example, an array [u8; 12] could return any value between 0 and 12 inclusively as a correct implementation. Read more

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default fn upper_bound(&self) -> Option<usize>

🔬This is a nightly-only experimental API. (core_io_internals)

Returns an upper bound on the number of elements this container-like item contains if it can be determined, otherwise None. Read more

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final fn size_hint(&self) -> (usize, Option<usize>)

🔬This is a nightly-only experimental API. (core_io_internals)

Returns an estimate for the number of elements this container like type contains. Read more

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