PointsTo

vstd_extra::cast_ptr

Struct PointsTo 

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pub struct PointsTo<R, T: Repr<R>> {
    pub addr: usize,
    pub points_to: PointsTo<R>,
    pub inner_perms: T::Perm,
    pub _T: PhantomData<T>,
}

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§addr: usize§points_to: PointsTo<R>§inner_perms: T::Perm§_T: PhantomData<T>

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impl<R, T: Repr<R>> PointsTo<R, T>

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pub open spec fn new_spec( addr: usize, points_to: PointsTo<R>, inner_perms: T::Perm, ) -> Self

{
    Self {
        addr: addr@,
        points_to,
        inner_perms,
        _T: PhantomData,
    }
}
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pub proof fn new( addr: Ghost<usize>, tracked points_to: PointsTo<R>, tracked inner_perms: T::Perm, ) -> tracked Self

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pub open spec fn wf(self, perm: &T::Perm) -> bool

{
    &&& T::wf(self.points_to.value(), *perm)

}
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pub open spec fn addr(self) -> usize

{ self.addr }
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pub open spec fn mem_contents(self) -> MemContents<T>

{
    match self.points_to.mem_contents() {
        MemContents::<R>::Uninit => MemContents::<T>::Uninit,
        MemContents::<R>::Init(r) => {
            MemContents::<T>::Init(T::from_repr_spec(r, self.inner_perms))
        }
    }
}
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pub open spec fn is_init(self) -> bool

{ self.mem_contents().is_init() }
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pub open spec fn is_uninit(self) -> bool

{ self.mem_contents().is_uninit() }
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pub open spec fn value(self) -> T

recommends
self.is_init(),
{ self.mem_contents().value() }
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pub open spec fn pptr(self) -> ReprPtr<R, T>

{
    ReprPtr {
        addr: self.addr,
        ptr: self.points_to.pptr(),
        _T: PhantomData,
    }
}
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pub broadcast proof fn pptr_implies_addr(&self)

ensures
self.addr() == #[trigger] self.pptr().addr(),
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pub proof fn take_inner_perms(tracked &mut self) -> tracked result : T::Perm

ensures
result == old(self).inner_perms,
self.addr == old(self).addr,
self.points_to == old(self).points_to,
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pub proof fn put_inner_perms(tracked &mut self, tracked perms: T::Perm)

ensures
self.inner_perms == perms,
self.addr == old(self).addr,
self.points_to == old(self).points_to,
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pub proof fn take_points_to(tracked &mut self) -> tracked result : PointsTo<R>

ensures
result == old(self).points_to,
self.addr == old(self).addr,
self.inner_perms == old(self).inner_perms,

Trait Implementations§

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impl<R, T: Repr<R>> From<PointsTo<R, T>> for PointsTo<R>

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exec fn from(ptr: PointsTo<R, T>) -> Self

Auto Trait Implementations§

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impl<R, T> Freeze for PointsTo<R, T>
where <T as Repr<R>>::Perm: Freeze,

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impl<R, T> RefUnwindSafe for PointsTo<R, T>
where <T as Repr<R>>::Perm: RefUnwindSafe, T: RefUnwindSafe, R: RefUnwindSafe,

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impl<R, T> Send for PointsTo<R, T>
where <T as Repr<R>>::Perm: Send, T: Send, R: Send,

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impl<R, T> Sync for PointsTo<R, T>
where <T as Repr<R>>::Perm: Sync, T: Sync, R: Sync,

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impl<R, T> Unpin for PointsTo<R, T>
where <T as Repr<R>>::Perm: Unpin, T: Unpin, R: Unpin,

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impl<R, T> UnwindSafe for PointsTo<R, T>
where <T as Repr<R>>::Perm: UnwindSafe, T: UnwindSafe, R: 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> 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<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>