Struct chalk_engine::Answer [−][src]
An "answer" in the on-demand solver corresponds to a fully solved goal for a particular table (modulo delayed literals). It contains a substitution
Fields
subst: Canonical<AnswerSubst<I>>
Contains values for the unbound inference variables for which the table is true, along with any delayed subgoals (Which must still be proven) and region constrained (which must still be proven, but not by chalk).
ambiguous: bool
If this flag is set, then the answer could be neither proven
nor disproven. This could be the size of the answer exceeded
max_size
or because of a negative loop (e.g., P :- not { P }
).
Trait Implementations
impl<I: Clone + Interner> Clone for Answer<I>
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impl<I: Debug + Interner> Debug for Answer<I>
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Auto Trait Implementations
impl<I> RefUnwindSafe for Answer<I> where
<I as Interner>::InternedCanonicalVarKinds: RefUnwindSafe,
<I as Interner>::InternedConstraints: RefUnwindSafe,
<I as Interner>::InternedGoal: RefUnwindSafe,
<I as Interner>::InternedProgramClauses: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
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<I as Interner>::InternedCanonicalVarKinds: RefUnwindSafe,
<I as Interner>::InternedConstraints: RefUnwindSafe,
<I as Interner>::InternedGoal: RefUnwindSafe,
<I as Interner>::InternedProgramClauses: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
impl<I> Send for Answer<I> where
<I as Interner>::InternedCanonicalVarKinds: Send,
<I as Interner>::InternedConstraints: Send,
<I as Interner>::InternedGoal: Send,
<I as Interner>::InternedProgramClauses: Send,
<I as Interner>::InternedSubstitution: Send,
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<I as Interner>::InternedCanonicalVarKinds: Send,
<I as Interner>::InternedConstraints: Send,
<I as Interner>::InternedGoal: Send,
<I as Interner>::InternedProgramClauses: Send,
<I as Interner>::InternedSubstitution: Send,
impl<I> Sync for Answer<I> where
<I as Interner>::InternedCanonicalVarKinds: Sync,
<I as Interner>::InternedConstraints: Sync,
<I as Interner>::InternedGoal: Sync,
<I as Interner>::InternedProgramClauses: Sync,
<I as Interner>::InternedSubstitution: Sync,
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<I as Interner>::InternedCanonicalVarKinds: Sync,
<I as Interner>::InternedConstraints: Sync,
<I as Interner>::InternedGoal: Sync,
<I as Interner>::InternedProgramClauses: Sync,
<I as Interner>::InternedSubstitution: Sync,
impl<I> Unpin for Answer<I> where
<I as Interner>::InternedCanonicalVarKinds: Unpin,
<I as Interner>::InternedConstraints: Unpin,
<I as Interner>::InternedGoal: Unpin,
<I as Interner>::InternedProgramClauses: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
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<I as Interner>::InternedCanonicalVarKinds: Unpin,
<I as Interner>::InternedConstraints: Unpin,
<I as Interner>::InternedGoal: Unpin,
<I as Interner>::InternedProgramClauses: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
impl<I> UnwindSafe for Answer<I> where
<I as Interner>::InternedCanonicalVarKinds: UnwindSafe,
<I as Interner>::InternedConstraints: UnwindSafe,
<I as Interner>::InternedGoal: UnwindSafe,
<I as Interner>::InternedProgramClauses: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
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<I as Interner>::InternedCanonicalVarKinds: UnwindSafe,
<I as Interner>::InternedConstraints: UnwindSafe,
<I as Interner>::InternedGoal: UnwindSafe,
<I as Interner>::InternedProgramClauses: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> Cast for T
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pub fn cast<U>(self, interner: &<U as HasInterner>::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
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Self: CastTo<U>,
U: HasInterner,
impl<T> From<T> for T
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impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,