ArcPointsTo

vstd_extra::external::smart_ptr

Struct ArcPointsTo 

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pub struct ArcPointsTo<T: 'static> {
    pub perm: &'static PointsTo<T>,
}
Expand description

For Arc<T>, the into_raw method gives shared access to the memory, and the reference count is not decreased, so the value will not be deallocated until we convert back to Arc<T> and drop it. See https://doc.rust-lang.org/src/alloc/sync.rs.html#1480.

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§perm: &'static PointsTo<T>

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impl<T> ArcPointsTo<T>

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pub open spec fn perm(self) -> &'static PointsTo<T>

{ self.perm }
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pub open spec fn ptr(self) -> *mut T

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

{ self.ptr().addr() }
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pub open spec fn is_uninit(self) -> bool

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

{ self.perm.is_init() }
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pub open spec fn value(self) -> T

{ self.perm.value() }
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pub proof fn tracked_borrow_points_to(tracked &self) -> tracked ret : &'static PointsTo<T>

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impl<T> Inv for ArcPointsTo<T>

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open spec fn inv(self) -> bool

{
    &&& self.addr() != 0
    &&& self.addr() as int % vstd::layout::align_of::<T>() as int == 0
    &&& self.is_init()

}

Auto Trait Implementations§

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impl<T> Freeze for ArcPointsTo<T>

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

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impl<T> Send for ArcPointsTo<T>
where T: Sync,

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

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impl<T> Unpin for ArcPointsTo<T>

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impl<T> UnwindSafe for ArcPointsTo<T>
where T: RefUnwindSafe,

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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>