Struct chalk_ir::TraitRef [−][src]
pub struct TraitRef<I: Interner> { pub trait_id: TraitId<I>, pub substitution: Substitution<I>, }
Expand description
A trait reference describes the relationship between a type and a trait. This can be used in two forms:
P0: Trait<P1..Pn>
(e.g.i32: Copy
), which mentions that the type implements the trait.<P0 as Trait<P1..Pn>>
(e.g.i32 as Copy
), which casts the type to that specific trait.
Fields
trait_id: TraitId<I>
The trait id.
substitution: Substitution<I>
The substitution, containing both the Self
type and the parameters.
Implementations
Gets all type parameters in this trait ref, including Self
.
Gets the type parameters of the Self
type in this trait ref.
Construct a WellFormed
using this trait ref.
Trait Implementations
Cast a value to type T
.
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
). Read more
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. Read more
type Interner = I
type Interner = I
The interner associated with the type.
fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
[src]
fn visit_with<'i, B>(
&self,
visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B> where
I: 'i,
[src]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. Read more
Auto Trait Implementations
impl<I> RefUnwindSafe for TraitRef<I> where
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::InternedSubstitution: RefUnwindSafe,
impl<I> Send for TraitRef<I> where
<I as Interner>::DefId: Send,
<I as Interner>::InternedSubstitution: Send,
impl<I> Sync for TraitRef<I> where
<I as Interner>::DefId: Sync,
<I as Interner>::InternedSubstitution: Sync,
impl<I> Unpin for TraitRef<I> where
<I as Interner>::DefId: Unpin,
<I as Interner>::InternedSubstitution: Unpin,
impl<I> UnwindSafe for TraitRef<I> where
<I as Interner>::DefId: UnwindSafe,
<I as Interner>::InternedSubstitution: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
Cast a value to type U
using CastTo
.
Cast a value to type T
.
Cast a value to type T
.
impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
[src]
impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,
[src]Checks whether self
and other
could possibly match.
Shifts this term in one level of binders.
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. Read more
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. Read more
Shifts this term out one level of binders.