Struct chalk_ir::AnswerSubst

pub struct AnswerSubst<I: Interner> {
    pub subst: Substitution<I>,
    pub constraints: Constraints<I>,
    pub delayed_subgoals: Vec<InEnvironment<Goal<I>>>,
}

Expand description

The resulting substitution after solving a goal.

Fields§

§subst: Substitution<I>

The substitution result.

NB: The is_trivial routine relies on the fact that subst is folded first.

§constraints: Constraints<I>

List of constraints that are part of the answer.

§delayed_subgoals: Vec<InEnvironment<Goal<I>>>

Delayed subgoals, used when the solver answered with an (incomplete) Answer (instead of a CompleteAnswer).

Trait Implementations§

impl<I: Clone + Interner> Clone for AnswerSubst<I>

fn clone(&self) -> AnswerSubst<I>

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl<I: Debug + Interner> Debug for AnswerSubst<I>

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

Formats the value using the given formatter. Read more

impl<I: Interner> HasInterner for AnswerSubst<I>

type Interner = I

The interner associated with the type.

impl<I: Hash + Interner> Hash for AnswerSubst<I>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

impl<I: PartialEq + Interner> PartialEq for AnswerSubst<I>

fn eq(&self, other: &AnswerSubst<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<I: Interner> TypeFoldable<I> for AnswerSubst<I>

fn try_fold_with<E>( self, folder: &mut dyn FallibleTypeFolder<I, Error = E>, outer_binder: DebruijnIndex, ) -> Result<Self, E>

Apply the given folder folder to self; binders is the number of binders that are in scope when beginning the folder. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

fn fold_with( self, folder: &mut dyn TypeFolder<I>, outer_binder: DebruijnIndex, ) -> Self

A convenient alternative to try_fold_with for use with infallible folders. Do not override this method, to ensure coherence with try_fold_with.

impl<I: Interner> TypeVisitable<I> for AnswerSubst<I>

fn visit_with<B>( &self, visitor: &mut dyn TypeVisitor<I, BreakTy = B>, outer_binder: DebruijnIndex, ) -> ControlFlow<B>

Apply the given visitor visitor to self; binders is the number of binders that are in scope when beginning the visitor. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

impl<I: Eq + Interner> Eq for AnswerSubst<I>

impl<I: Interner> StructuralPartialEq for AnswerSubst<I>

Auto Trait Implementations§

impl<I> Freeze for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: Freeze, <I as Interner>::InternedConstraints: Freeze,

impl<I> RefUnwindSafe for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: RefUnwindSafe, <I as Interner>::InternedConstraints: RefUnwindSafe, <I as Interner>::InternedGoal: RefUnwindSafe, <I as Interner>::InternedProgramClauses: RefUnwindSafe,

impl<I> Send for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: Send, <I as Interner>::InternedConstraints: Send, <I as Interner>::InternedGoal: Send, <I as Interner>::InternedProgramClauses: Send,

impl<I> Sync for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: Sync, <I as Interner>::InternedConstraints: Sync, <I as Interner>::InternedGoal: Sync, <I as Interner>::InternedProgramClauses: Sync,

impl<I> Unpin for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: Unpin, <I as Interner>::InternedConstraints: Unpin, <I as Interner>::InternedGoal: Unpin, <I as Interner>::InternedProgramClauses: Unpin,

impl<I> UnwindSafe for AnswerSubst<I>
where <I as Interner>::InternedSubstitution: UnwindSafe, <I as Interner>::InternedConstraints: UnwindSafe, <I as Interner>::InternedGoal: UnwindSafe, <I as Interner>::InternedProgramClauses: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Cast for T

fn cast<U>(self, interner: U::Interner) -> U
where Self: CastTo<U>, U: HasInterner,

Cast a value to type U using CastTo.

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

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, I> Shift<I> for T
where T: TypeFoldable<I>, I: Interner,

fn shifted_in(self, interner: I) -> T

Shifts this term in one level of binders.

fn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T

Shifts a term valid at outer_binder so that it is valid at the innermost binder. See DebruijnIndex::shifted_in_from for a detailed explanation.

fn shifted_out_to( self, interner: I, target_binder: DebruijnIndex, ) -> Result<T, NoSolution>

Shifts a term valid at the innermost binder so that it is valid at outer_binder. See DebruijnIndex::shifted_out_to for a detailed explanation.

fn shifted_out(self, interner: I) -> Result<T, NoSolution>

Shifts this term out one level of binders.

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T, I> VisitExt<I> for T
where I: Interner, T: TypeVisitable<I>,

fn has_free_vars(&self, interner: I) -> bool

Check whether there are free (non-bound) variables.