SumUpdateL

creusot_contracts::logic::ra::sum

Struct SumUpdateL 

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pub struct SumUpdateL<U>(pub U);

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§0: U

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impl<R1: RA, R2: RA, U: Update<R1>> Update<Sum<R1, R2>> for SumUpdateL<U>

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fn premise(self, from: Sum<R1, R2>) -> bool

(open)

match from {
    Sum::Left(from) => self.0.premise(from),
    Sum::Right(_) => false,
}
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fn update(self, from: Sum<R1, R2>, ch: U::Choice) -> Sum<R1, R2>

(open)

match from {
    Sum::Left(from) => Sum::Left(self.0.update(from, ch)),
    x => x, /* Dummy */
}

requires 

self.premise(from)

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fn frame_preserving(self, from: Sum<R1, R2>, frame: Sum<R1, R2>) -> U::Choice

⚠

requires 

self.premise(from)

requires 

from.op(frame) != None

ensures 

self.update(from, result).op(frame) != None

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type Choice = <U as Update<R1>>::Choice

Auto Trait Implementations§

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impl<U> Freeze for SumUpdateL<U>
where U: Freeze,

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impl<U> RefUnwindSafe for SumUpdateL<U>
where U: RefUnwindSafe,

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impl<U> Send for SumUpdateL<U>
where U: Send,

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impl<U> Sync for SumUpdateL<U>
where U: Sync,

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impl<U> Unpin for SumUpdateL<U>
where U: Unpin,

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impl<U> UnwindSafe for SumUpdateL<U>
where U: 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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, 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, 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.