ReprPtr

vstd_extra::cast_ptr

Struct ReprPtr 

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pub struct ReprPtr<R, T: Repr<R>> {
    pub addr: usize,
    pub ptr: PPtr<R>,
    pub _T: PhantomData<T>,
}
Expand description

Concrete representation of a pointer to an object of type T with representation type R The length of the array is not stored in the pointer

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§addr: usize§ptr: PPtr<R>§_T: PhantomData<T>

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

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pub open spec fn new_spec(ptr: PPtr<R>) -> Self

{
    Self {
        addr: ptr.addr(),
        ptr: ptr,
        _T: PhantomData,
    }
}
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pub exec fn new_borrowed<'a>(ptr: &'a PPtr<R>) -> res : &'a Self

ensures
*res == Self::new_spec(*ptr),
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pub exec fn from_pptr(ptr: PPtr<R>) -> res : Self

ensures
res == Self::new_spec(ptr),
res.addr == ptr.addr(),
res.ptr == ptr,
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pub open spec fn to_pptr(self) -> PPtr<R>

{ self.ptr }
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pub open spec fn addr_spec(self) -> usize

{ self.addr }
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pub exec fn addr(self) -> u : usize

ensures
u == self.addr,
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pub exec fn take(self, Tracked(perm): Tracked<&mut PointsTo<R, T>>) -> v : T

requires
old(perm).pptr() == self,
old(perm).is_init(),
old(perm).wf(&old(perm).inner_perms),
ensures
perm.pptr() == old(perm).pptr(),
perm.mem_contents() == MemContents::Uninit::<T>,
v == old(perm).value(),
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pub exec fn put(self, Tracked(perm): Tracked<&mut PointsTo<R, T>>, v: T)

requires
old(perm).pptr() == self,
old(perm).mem_contents() == MemContents::Uninit::<T>,
ensures
perm.pptr() == old(perm).pptr(),
perm.mem_contents() == MemContents::Init(v),
perm.wf(&perm.inner_perms),
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pub exec fn borrow<'a>(self, Tracked(perm): Tracked<&'a PointsTo<R, T>>) -> v : &'a T

requires
perm.pptr() == self,
perm.is_init(),
perm.wf(&perm.inner_perms),
ensures
*v === perm.value(),

Trait Implementations§

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impl<R, T: Repr<R>> Clone for ReprPtr<R, T>

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exec fn clone(&self) -> Self

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

Performs copy-assignment from source. Read more
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impl<R, T: Repr<R>> From<PPtr<R>> for ReprPtr<R, T>

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exec fn from(ptr: PPtr<R>) -> Self

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impl<R, T: Repr<R>> From<ReprPtr<R, T>> for PPtr<R>

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

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impl<R, T: Repr<R>> Copy for ReprPtr<R, T>

Auto Trait Implementations§

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impl<R, T> Freeze for ReprPtr<R, T>

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impl<R, T> RefUnwindSafe for ReprPtr<R, T>
where T: RefUnwindSafe, R: RefUnwindSafe,

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impl<R, T> Send for ReprPtr<R, T>
where T: Send, R: Send,

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impl<R, T> Sync for ReprPtr<R, T>
where T: Sync, R: Sync,

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impl<R, T> Unpin for ReprPtr<R, T>
where T: Unpin, R: Unpin,

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impl<R, T> UnwindSafe for ReprPtr<R, T>
where T: UnwindSafe, R: UnwindSafe,

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> 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> 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 = 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>