Struct chalk_ir::ProjectionTy

pub struct ProjectionTy<I: Interner> {
    pub associated_ty_id: AssocTypeId<I>,
    pub substitution: Substitution<I>,
}

A projection <P0 as TraitName<P1..Pn>>::AssocItem<Pn+1..Pm>.

Fields

associated_ty_id: AssocTypeId<I>

The id for the associated type member.

substitution: Substitution<I>

The substitution for the projection.

Implementations

impl<I: Interner> ProjectionTy<I>

pub fn debug<'a>(&'a self, interner: &'a I) -> ProjectionTyDebug<'a, I>

Show debug output for the projection type.

impl<I: Interner> ProjectionTy<I>

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: Clone + Interner> Clone for ProjectionTy<I>

fn clone(&self) -> ProjectionTy<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 ProjectionTy<I> where
    I::InternedSubstitution: Copy, 

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

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

Formats the value using the given formatter.

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

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

type Result = ProjectionTy<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).

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 ProjectionTy<I>

type Interner = I

The interner associated with the type.

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

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<ProjectionTy<I>> for ProjectionTy<I>

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

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

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

This method tests for !=.

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

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

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

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 ProjectionTy<I>

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.