Struct chalk_solve::rust_ir::OpaqueTyDatum

pub struct OpaqueTyDatum<I: Interner> {
    pub opaque_ty_id: OpaqueTyId<I>,
    pub bound: Binders<OpaqueTyDatumBound<I>>,
}

Represents the bounds for an impl Trait type.

opaque type T: A + B = HiddenTy;

Fields

opaque_ty_id: OpaqueTyId<I>

The placeholder !T that corresponds to the opaque type T.

bound: Binders<OpaqueTyDatumBound<I>>

The type bound to when revealed.

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

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

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

Formats the value using the given formatter.

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

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

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

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

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

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> RenderAsRust<I> for OpaqueTyDatum<I>

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

fn display<'a>( &'a self, s: &'a InternalWriterState<'a, I>, ) -> DisplayRenderAsRust<'a, I, Self>

where Self: Sized,

impl<I: Interner> ToProgramClauses<I> for OpaqueTyDatum<I>

fn to_program_clauses( &self, builder: &mut ClauseBuilder<'_, I>, _environment: &Environment<I>, )

Given opaque type T<U>: A + B = HiddenTy where U: C;, we generate:

AliasEq(T<U> = HiddenTy) :- Reveal.
AliasEq(T<U> = !T<U>).
WF(T<U>) :- WF(U: C).
Implemented(!T<U>: A).
Implemented(!T<U>: B).

where !T<..> is the placeholder for the unnormalized type T<..>.

impl<I: Interner> TypeFoldable<I> for OpaqueTyDatum<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, Error = Infallible>, 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 OpaqueTyDatum<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 OpaqueTyDatum<I>

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