pub struct Canonical<T: HasInterner> {
pub value: T,
pub binders: CanonicalVarKinds<T::Interner>,
}
Expand description
Wraps a “canonicalized item”. Items are canonicalized as follows:
All unresolved existential variables are “renumbered” according to their
first appearance; the kind/universe of the variable is recorded in the
binders
field.
Fields
value: T
The item that is canonicalized.
binders: CanonicalVarKinds<T::Interner>
The kind/universe of the variable.
Implementations
sourceimpl<T: HasInterner + Display> Canonical<T>
impl<T: HasInterner + Display> Canonical<T>
sourcepub fn display(&self, interner: T::Interner) -> CanonicalDisplay<'_, T>
pub fn display(&self, interner: T::Interner) -> CanonicalDisplay<'_, T>
Display the canonicalized item.
Trait Implementations
sourceimpl<T, U> CastTo<Canonical<U>> for Canonical<T> where
T: CastTo<U> + HasInterner,
U: HasInterner<Interner = T::Interner>,
impl<T, U> CastTo<Canonical<U>> for Canonical<T> where
T: CastTo<U> + HasInterner,
U: HasInterner<Interner = T::Interner>,
sourceimpl<T: HasInterner> HasInterner for Canonical<T>
impl<T: HasInterner> HasInterner for Canonical<T>
type Interner = <T as HasInterner>::Interner
type Interner = <T as HasInterner>::Interner
The interner associated with the type.
sourceimpl<T: PartialEq + HasInterner> PartialEq<Canonical<T>> for Canonical<T> where
T::Interner: PartialEq,
impl<T: PartialEq + HasInterner> PartialEq<Canonical<T>> for Canonical<T> where
T::Interner: PartialEq,
sourceimpl<I, T> TypeFoldable<I> for Canonical<T> where
I: Interner,
T: HasInterner<Interner = I> + TypeFoldable<I>,
impl<I, T> TypeFoldable<I> for Canonical<T> where
I: Interner,
T: HasInterner<Interner = I> + TypeFoldable<I>,
sourcefn fold_with<E>(
self,
folder: &mut dyn TypeFolder<I, Error = E>,
outer_binder: DebruijnIndex
) -> Result<Self, E>
fn fold_with<E>(
self,
folder: &mut dyn TypeFolder<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. Read more
sourceimpl<I, T> TypeVisitable<I> for Canonical<T> where
I: Interner,
T: HasInterner<Interner = I> + TypeVisitable<I>,
impl<I, T> TypeVisitable<I> for Canonical<T> where
I: Interner,
T: HasInterner<Interner = I> + TypeVisitable<I>,
sourcefn visit_with<B>(
&self,
visitor: &mut dyn TypeVisitor<I, BreakTy = B>,
outer_binder: DebruijnIndex
) -> ControlFlow<B>
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. Read more
impl<T: Eq + HasInterner> Eq for Canonical<T> where
T::Interner: Eq,
impl<T: HasInterner> StructuralEq for Canonical<T>
impl<T: HasInterner> StructuralPartialEq for Canonical<T>
Auto Trait Implementations
impl<T> RefUnwindSafe for Canonical<T> where
T: RefUnwindSafe,
<<T as HasInterner>::Interner as Interner>::InternedCanonicalVarKinds: RefUnwindSafe,
impl<T> Send for Canonical<T> where
T: Send,
<<T as HasInterner>::Interner as Interner>::InternedCanonicalVarKinds: Send,
impl<T> Sync for Canonical<T> where
T: Sync,
<<T as HasInterner>::Interner as Interner>::InternedCanonicalVarKinds: Sync,
impl<T> Unpin for Canonical<T> where
T: Unpin,
<<T as HasInterner>::Interner as Interner>::InternedCanonicalVarKinds: Unpin,
impl<T> UnwindSafe for Canonical<T> where
T: UnwindSafe,
<<T as HasInterner>::Interner as Interner>::InternedCanonicalVarKinds: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Cast for T
impl<T> Cast for T
sourcefn cast<U>(self, interner: U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
fn cast<U>(self, interner: U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,
Cast a value to type U
using CastTo
.
sourceimpl<T, I> Shift<I> for T where
T: TypeFoldable<I>,
I: Interner,
impl<T, I> Shift<I> for T where
T: TypeFoldable<I>,
I: Interner,
sourcefn shifted_in(self, interner: I) -> T
fn shifted_in(self, interner: I) -> T
Shifts this term in one level of binders.
sourcefn shifted_in_from(self, interner: I, source_binder: DebruijnIndex) -> T
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. Read more
sourcefn shifted_out_to(
self,
interner: I,
target_binder: DebruijnIndex
) -> Result<T, NoSolution>
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. Read more
sourcefn shifted_out(self, interner: I) -> Result<T, NoSolution>
fn shifted_out(self, interner: I) -> Result<T, NoSolution>
Shifts this term out one level of binders.
sourceimpl<T, I> VisitExt<I> for T where
I: Interner,
T: TypeVisitable<I>,
impl<T, I> VisitExt<I> for T where
I: Interner,
T: TypeVisitable<I>,
sourcefn has_free_vars(&self, interner: I) -> bool
fn has_free_vars(&self, interner: I) -> bool
Check whether there are free (non-bound) variables.