Skip to main content

ReprPtr

vstd_extra::cast_ptr

Struct ReprPtr 

Source 
pub struct ReprPtr<R, T> {
    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

Fields§

§ptr: PPtr<R>§_T: PhantomData<T>

Implementations§

Source§

impl<R, T> ReprPtr<R, T>

Source

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

{ Self { ptr, _T: PhantomData } }
Source

pub exec fn from_pptr(ptr: PPtr<R>) -> res : Self

ensures
res == Self::new_spec(ptr),
res.addr() == ptr.addr(),
res.ptr == ptr,
Source

pub open spec fn to_pptr(self) -> PPtr<R>

{ self.ptr }
Source

pub open spec fn addr_spec(self) -> usize

{ self.ptr.addr() }
Source

pub exec fn addr(self) -> usize

returns
self.addr(),
Source§

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

Source

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
final(perm).pptr() == old(perm).pptr(),
final(perm).mem_contents() == MemContents::Uninit::<T>,
v == old(perm).value(),
final(perm).inner_perms == old(perm).inner_perms,
Source

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
final(perm).pptr() == old(perm).pptr(),
final(perm).mem_contents() == MemContents::Init(v),
final(perm).wf(&final(perm).inner_perms),
final(perm).inner_perms == v.to_repr_spec(old(perm).inner_perms).1,
final(perm).points_to.value() == v.to_repr_spec(old(perm).inner_perms).0,
final(perm).points_to.is_init(),
Source

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(),
Source

pub exec fn borrow_mut<'a>( self, Tracked(perm): Tracked<&'a mut PointsTo<R, T>>, ) -> v : &'a mut T

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

Borrows the pointed-to T mutably for the lifetime of perm.

While the returned borrow is live, perm is exclusively held and cannot be used. The returned borrow is tied to the tracked permission: at the return point, the permission’s value matches *v. Callers must preserve any invariants beyond the final initialised/well-formed state themselves.

FIXME[SOUNDNESS]: This method is unsound because the caller must ensure the final value of v is consistent with the inner permissions.

Trait Implementations§

Source§

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

Source§

exec fn clone(&self) -> Self

returns
self,
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
Source§

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

Source§

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

Source§

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

Source§

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

Source§

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

Source§

impl<R, T> FromSpecImpl<PPtr<R>> for ReprPtr<R, T>

Source§

open spec fn obeys_from_spec() -> bool

{ true }
Source§

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

{ Self { ptr, _T: PhantomData } }
Source§

impl<R, T> FromSpecImpl<ReprPtr<R, T>> for PPtr<R>

Source§

open spec fn obeys_from_spec() -> bool

{ true }
Source§

open spec fn from_spec(ptr: ReprPtr<R, T>) -> Self

{ ptr.ptr }

Auto Trait Implementations§

§

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

§

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

§

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

§

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

§

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

§

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

§

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

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

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
§

impl<T> Conv for T

§

fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
§

impl<T> FmtForward for T

§

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
§

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
§

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
§

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
§

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
§

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
§

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
§

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
§

fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

§

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

§

fn obeys_from_spec() -> bool

§

fn from_spec(v: T) -> VERUS_SPEC__A

Source§

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

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.

§

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

§

fn obeys_into_spec() -> bool

§

fn into_spec(self) -> T

§

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

§

fn obeys_into_spec() -> bool

§

fn into_spec(self) -> U

§

impl<T> Pipe for T
where T: ?Sized,

§

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
§

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
§

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
§

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
§

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
§

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
§

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
§

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
§

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
§

impl<A> SpecEq<&A> for A
where A: ?Sized,

§

impl<A> SpecEq<&mut A> for A
where A: ?Sized,

§

impl<A> SpecEq<A> for A
where A: ?Sized,

§

impl<A> SpecEq<Ghost<A>> for A

§

impl<A> SpecEq<Tracked<A>> for A

§

impl<T> Tap for T

§

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
§

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
§

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
§

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
§

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
§

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
§

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
§

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
§

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
§

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
§

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
§

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
§

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
§

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
§

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
§

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
§

impl<T> TryConv for T

§

fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
§

impl<T, VERUS_SPEC__A> TryFromSpec<T> for VERUS_SPEC__A
where VERUS_SPEC__A: TryFrom<T>,

§

fn obeys_try_from_spec() -> bool

§

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

Source§

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

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
§

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

§

fn obeys_try_into_spec() -> bool

§

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

§

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

§

fn obeys_try_into_spec() -> bool

§

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