Lazy

canrun::goals

Struct Lazy 

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pub struct Lazy { /* private fields */ }
Expand description

A Goal that is generated via callback just as it is about to be evaluated. Create with lazy.

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impl Debug for Lazy

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Goal for Lazy

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fn apply(&self, state: State) -> Option<State>

Apply the Goal to a state, returning Some if the state is still valid, or None. Read more

Auto Trait Implementations§

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impl Freeze for Lazy

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impl !RefUnwindSafe for Lazy

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impl !Send for Lazy

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impl !Sync for Lazy

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impl Unpin for Lazy

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impl !UnwindSafe for Lazy

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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<'a, S> Query<'a> for S
where S: StateIterator + 'a,

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fn query<Q>( self, query: Q, ) -> Box<dyn Iterator<Item = <Q as Reify>::Reified> + 'a>
where Q: Reify + 'a,

Get reified results from things that can produce StateIters. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<G> StateIterator for G
where G: Goal,

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fn into_states(self) -> Box<dyn Iterator<Item = State>>

Iterate over States by applying all pending Forks and checking Constraints.
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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.