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ProtectKey

miniextendr_api::protect_pool

Struct ProtectKey 

Source 
pub struct ProtectKey {
    slot: u32,
    generation: u32,
}
Expand description

Generational key for a slot in a ProtectPool.

Contains a slot index and a generation counter. Once a slot is released, its old keys are stale: the pool’s generation for the slot no longer matches, so operations with them return None or do nothing. A key does not record its pool. Use it only with the pool that returned it: another pool treats it as a key of its own slot.

8 bytes: 4-byte slot index + 4-byte generation.

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§slot: u32§generation: u32

Trait Implementations§

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impl Clone for ProtectKey

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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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impl Copy for ProtectKey

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impl Debug for ProtectKey

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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 Eq for ProtectKey

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#[doc(hidden)]
fn assert_fields_are_eq(&self)

🔬This is a nightly-only experimental API. (derive_eq_internals)
1.0.0 (const: unstable) · Source§

#[doc(hidden)]
fn assert_receiver_is_total_eq(&self)

👎Deprecated since 1.95.0:

implementation detail of #[derive(Eq)]

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impl Hash for ProtectKey

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ProtectKey

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for ProtectKey

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impl TrivialClone for ProtectKey

Auto Trait Implementations§

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<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> Printable for T
where T: Copy + Debug,

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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> RDebug for T
where T: Debug,

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fn debug_str(&self) -> String

Get a compact debug string representation.
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fn debug_str_pretty(&self) -> String

Get a pretty-printed debug string with indentation.
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#[doc(hidden)]
unsafe extern "C" fn __RDebug_debug_str_shim( data: *mut c_void, argc: i32, argv: *const SEXP, ) -> SEXP
where Self: Sized + RDebug,

Method shim for RDebug::debug_str. Read more
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#[doc(hidden)]
unsafe extern "C" fn __RDebug_debug_str_pretty_shim( data: *mut c_void, argc: i32, argv: *const SEXP, ) -> SEXP
where Self: Sized + RDebug,

Method shim for RDebug::debug_str_pretty. Read more
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impl<T> RHash for T
where T: Hash,

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fn r_hash(&self) -> String

Compute a hash of this value. Read more
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#[doc(hidden)]
unsafe extern "C" fn __RHash_r_hash_shim( data: *mut c_void, argc: i32, argv: *const SEXP, ) -> SEXP
where Self: Sized + RHash,

Method shim for RHash::r_hash. 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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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> ToOwned for T
where 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 T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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.

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: 8 bytes