Struct OneRight Owner &nbsp; Copy item path

impl<A, B, const TOTAL: u64> OneRightOwner<A, B, TOTAL>

pub closed spec fn id(self) -> Loc

Returns the unique identifier.

pub closed spec fn protocol_monoid(self) -> SumSP<A, B, TOTAL>

The underlying protocol monoid value for this resource.

pub closed spec fn resource(self) -> B

Returns the resource owned by this token.

pub closed spec fn frac(self) -> int

Returns the fraction of this token, which should always be 1.

pub closed spec fn has_resource(self) -> bool

Whether this token currently has the resource stored.

pub closed spec fn has_no_resource(self) -> bool

Whether the resource has been taken from this token.

pub open spec fn wf(self) -> bool

{
    &&& self.protocol_monoid().is_right()
    &&& self.protocol_monoid().is_valid()
    &&& self.protocol_monoid().is_resource_owner()
    &&& self.frac() == 1
    &&& TOTAL >= 1
    &&& self.has_resource() <==> !self.has_no_resource()

}

Type invariant.

pub proof fn validate(tracked &self)

ensures

self.wf(),

OneRightOwner token satisfies the type invariant.

pub proof fn validate_with_one_right_owner(tracked &mut self, tracked other: &Self)

ensures

*old(self) == *final(self),

final(self).id() != other.id(),

final(self).wf(),

The existence of two OneRightOwner tokens ensures they can not have the same id.

pub proof fn tracked_borrow(tracked &self) -> tracked res : &B

requires

self.has_resource(),

ensures

*res == self.resource(),

Borrows the resource of type B.

pub proof fn take_resource(tracked &mut self) -> tracked res : B

requires

old(self).has_resource(),

ensures

res == old(self).resource(),

final(self).has_no_resource(),

final(self).wf(),

Takes the resource out of the token.

pub proof fn put_resource(tracked &mut self, tracked b: B)

requires

old(self).has_no_resource(),

ensures

final(self).resource() == b,

final(self).has_resource(),

final(self).wf(),

Puts a resource of type B back to the token.

pub proof fn update(tracked &mut self, tracked b: B) -> tracked res : Option

ensures

final(self).resource() == b,

final(self).has_resource(),

final(self).wf(),

res == if old(self).has_resource() { Some(old(self).resource()) } else { None },

Updates the resource of type B in the token, and returns the old resource if available.

Auto Trait Implementations§

impl<A, B, const TOTAL: u64> Freeze for OneRightOwner<A, B, TOTAL>

impl<A, B, const TOTAL: u64> RefUnwindSafe for OneRightOwner<A, B, TOTAL>
where A: RefUnwindSafe, B: RefUnwindSafe,

impl<A, B, const TOTAL: u64> Send for OneRightOwner<A, B, TOTAL>
where A: Send + Sync, B: Send + Sync,

impl<A, B, const TOTAL: u64> Sync for OneRightOwner<A, B, TOTAL>
where A: Sync + Send, B: Sync + Send,

impl<A, B, const TOTAL: u64> Unpin for OneRightOwner<A, B, TOTAL>
where A: Unpin, B: Unpin,

impl<A, B, const TOTAL: u64> UnsafeUnpin for OneRightOwner<A, B, TOTAL>

impl<A, B, const TOTAL: u64> UnwindSafe for OneRightOwner<A, B, TOTAL>
where A: UnwindSafe, B: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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Immutably borrows from an owned value. Read more

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

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

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