Struct r3_core::utils::Frozen

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#[repr(transparent)]
pub struct Frozen<T: ?Sized>(_);
Expand description

Erases interior mutability by preventing reference forming.

Implementations§

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impl<T: Copy> Frozen<T>

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pub const fn get(&self) -> T

Get a copy of the contained T.

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pub const fn leak_slice<'out>(x: &[T]) -> &'out [Frozen<T>]where T: 'out,

Copy the referenced [T] to the CTFE heap. The resulting reference can be safely consumed at runtime.

Example
use r3_core::utils::Frozen;
const SLICE: &[Frozen<u8>] = Frozen::leak_slice(&[1, 2, 3]);
assert_eq!(SLICE[1].get(), 2);

Trait Implementations§

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impl<T: Copy> Clone for Frozen<T>

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const fn clone(&self) -> Self

Returns a copy of the value. Read more
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impl<T: Copy + Debug> Debug for Frozen<T>

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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<T: Copy> Copy for Frozen<T>

Auto Trait Implementations§

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impl<T: ?Sized> RefUnwindSafe for Frozen<T>where T: RefUnwindSafe,

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impl<T: ?Sized> Send for Frozen<T>where T: Send,

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impl<T: ?Sized> Sync for Frozen<T>where T: Sync,

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impl<T: ?Sized> Unpin for Frozen<T>where T: Unpin,

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impl<T: ?Sized> UnwindSafe for Frozen<T>where T: UnwindSafe,

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,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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>,

const: unstable · source§

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, 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.
const: unstable · source§

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.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.