Enum chalk_ir::AliasTy

pub enum AliasTy<I: Interner> {
    Projection(ProjectionTy<I>),
    Opaque(OpaqueTy<I>),
}

An alias, which is a trait indirection such as a projection or opaque type.

Variants

Projection(ProjectionTy<I>)

An associated type projection.

Opaque(OpaqueTy<I>)

An opaque type.

Implementations

impl<I: Interner> AliasTy<I>

pub fn intern(self, interner: &I) -> Ty<I>

Create an interned type for this alias.

pub fn self_type_parameter(&self, interner: &I) -> Ty<I>

Gets the type parameters of the Self type in this alias type.

Trait Implementations

impl<I: Interner> CastTo<TyKind<I>> for AliasTy<I>

pub fn cast_to(self, _interner: &I) -> TyKind<I>

Cast a value to type T.

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

pub fn clone(&self) -> AliasTy<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I: Interner> Copy for AliasTy<I> where
    I::InternedSubstitution: Copy, 

impl<I: Interner> Debug for AliasTy<I>

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

Formats the value using the given formatter.

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

impl<I: Interner> Fold<I> for AliasTy<I>

type Result = AliasTy<I>

The type of value that will be produced once folding is done. Typically this is Self, unless Self contains borrowed values, in which case owned values are produced (for example, one can fold over a &T value where T: Fold, in which case you get back a T, not a &T).

pub fn fold_with<'i>(
    &self,
    folder: &mut dyn Folder<'i, I>,
    outer_binder: DebruijnIndex
) -> Fallible<Self::Result> where
    I: 'i, 

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.

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

type Interner = I

The interner associated with the type.

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

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

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

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

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

pub fn ne(&self, other: &AliasTy<I>) -> bool

This method tests for !=.

impl<I: Interner> StructuralEq for AliasTy<I>

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

impl<I: Interner> Visit<I> for AliasTy<I>

pub fn visit_with<'i, B>(
    &self,
    visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
    outer_binder: DebruijnIndex
) -> ControlFlow<B> where
    I: 'i, 

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: Interner> Zip<I> for AliasTy<I>

pub fn zip_with<'i, Z: Zipper<'i, I>>(
    zipper: &mut Z,
    variance: Variance,
    a: &Self,
    b: &Self
) -> Fallible<()> where
    I: 'i, 

Uses the zipper to walk through two values, ensuring that they match.