Enum SearchStep

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pub enum SearchStep<State> {
    Continue(State),
    Pruned {
        reason: String,
    },
    Infeasible {
        reason: String,
    },
}

Expand description

Outcome of applying a choice or propagating a state.

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Continue(State)

Continue with the supplied state.

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Pruned

Drop this prefix without treating the whole problem as impossible.

Fields

§reason: String

Deterministic reason recorded only in tests or diagnostics.

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Infeasible

Reject this state as locally infeasible.

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§reason: String

Deterministic reason recorded only in tests or diagnostics.

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impl<State> SearchStep<State>

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pub fn pruned(reason: impl Into<String>) -> SearchStep<State>

Build a pruned step with a stable reason.

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pub fn infeasible(reason: impl Into<String>) -> SearchStep<State>

Build an infeasible step with a stable reason.

Trait Implementations§

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impl<State> Clone for SearchStep<State>
where State: Clone,

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fn clone(&self) -> SearchStep<State>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl<State> Debug for SearchStep<State>
where State: Debug,

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

Formats the value using the given formatter. Read more

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impl<State> Eq for SearchStep<State>
where State: Eq,

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impl<State> PartialEq for SearchStep<State>
where State: PartialEq,

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fn eq(&self, other: &SearchStep<State>) -> bool

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

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impl<State> StructuralPartialEq for SearchStep<State>
where State: PartialEq,

Auto Trait Implementations§

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impl<State> UnwindSafe for SearchStep<State>
where State: 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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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

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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

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impl<T> Downcast<T> for T

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fn downcast(&self) -> &T

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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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 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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