NeverDrop

vstd_extra::undroppable

Struct NeverDrop 

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pub struct NeverDrop<T: Undroppable>(pub ManuallyDrop<T>);

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§0: ManuallyDrop<T>

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impl<T: Undroppable> NeverDrop<T>

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pub exec fn new(t: T, Tracked(s): Tracked<&mut T::State>) -> res : Self

requires
t.constructor_requires(*old(s)),
ensures
t.constructor_ensures(*old(s), *s),
res.0@ == t,

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impl<T: Undroppable> Deref for NeverDrop<T>

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exec fn deref(&self) -> res : &Self::Target

ensures
res == manually_drop_deref_spec(&self.0),
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type Target = T

The resulting type after dereferencing.
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impl<T: Undroppable> View for NeverDrop<T>

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open spec fn view(&self) -> res : Self::V

{ *manually_drop_deref_spec(&self.0) }
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type V = T

Auto Trait Implementations§

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impl<T> Freeze for NeverDrop<T>
where T: Freeze,

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impl<T> RefUnwindSafe for NeverDrop<T>
where T: RefUnwindSafe,

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impl<T> Send for NeverDrop<T>
where T: Send,

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impl<T> Sync for NeverDrop<T>
where T: Sync,

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impl<T> Unpin for NeverDrop<T>
where T: Unpin,

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impl<T> UnwindSafe for NeverDrop<T>
where T: UnwindSafe,

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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> DerefSpec for T
where T: Deref,

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uninterp fn deref_spec(&self) -> &<T as Deref>::Target

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proof fn deref_spec_eq(&self)

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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, VERUS_SPEC__A> FromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: From<T>,

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fn obeys_from_spec() -> bool

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fn from_spec(v: T) -> VERUS_SPEC__A

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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, VERUS_SPEC__A> IntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: Into<T>,

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fn obeys_into_spec() -> bool

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fn into_spec(self) -> T

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impl<T, U> IntoSpecImpl<U> for T
where U: From<T>,

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fn obeys_into_spec() -> bool

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fn into_spec(self) -> U

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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, VERUS_SPEC__A> TryFromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryFrom<T>,

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fn obeys_try_from_spec() -> bool

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fn try_from_spec( v: T, ) -> Result<VERUS_SPEC__A, <VERUS_SPEC__A as TryFrom<T>>::Error>

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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<T, VERUS_SPEC__A> TryIntoSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryInto<T>,

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fn obeys_try_into_spec() -> bool

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fn try_into_spec(self) -> Result<T, <VERUS_SPEC__A as TryInto<T>>::Error>

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impl<T, U> TryIntoSpecImpl<U> for T
where U: TryFrom<T>,

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fn obeys_try_into_spec() -> bool

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