Struct rustc_middle::ty::InstantiatedPredicates
source · pub struct InstantiatedPredicates<'tcx> {
pub predicates: Vec<Predicate<'tcx>>,
pub spans: Vec<Span>,
}
Expand description
Represents the bounds declared on a particular set of type
parameters. Should eventually be generalized into a flag list of
where-clauses. You can obtain an InstantiatedPredicates
list from a
GenericPredicates
by using the instantiate
method. Note that this method
reflects an important semantic invariant of InstantiatedPredicates
: while
the GenericPredicates
are expressed in terms of the bound type
parameters of the impl/trait/whatever, an InstantiatedPredicates
instance
represented a set of bounds for some particular instantiation,
meaning that the generic parameters have been substituted with
their values.
Example:
struct Foo<T, U: Bar<T>> { ... }
Here, the GenericPredicates
for Foo
would contain a list of bounds like
[[], [U:Bar<T>]]
. Now if there were some particular reference
like Foo<isize,usize>
, then the InstantiatedPredicates
would be [[], [usize:Bar<isize>]]
.
Fields
predicates: Vec<Predicate<'tcx>>
spans: Vec<Span>
Implementations
sourceimpl<'tcx> InstantiatedPredicates<'tcx>
impl<'tcx> InstantiatedPredicates<'tcx>
Trait Implementations
sourceimpl<'tcx> Clone for InstantiatedPredicates<'tcx>
impl<'tcx> Clone for InstantiatedPredicates<'tcx>
sourcefn clone(&self) -> InstantiatedPredicates<'tcx>
fn clone(&self) -> InstantiatedPredicates<'tcx>
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl<'tcx> Debug for InstantiatedPredicates<'tcx>
impl<'tcx> Debug for InstantiatedPredicates<'tcx>
sourceimpl<'tcx> TypeFoldable<'tcx> for InstantiatedPredicates<'tcx>
impl<'tcx> TypeFoldable<'tcx> for InstantiatedPredicates<'tcx>
sourcefn try_fold_with<__F: FallibleTypeFolder<'tcx>>(
self,
__folder: &mut __F
) -> Result<Self, __F::Error>
fn try_fold_with<__F: FallibleTypeFolder<'tcx>>(
self,
__folder: &mut __F
) -> Result<Self, __F::Error>
sourcefn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self
fn fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self
try_fold_with
for use with infallible
folders. Do not override this method, to ensure coherence with
try_fold_with
. Read moresourceimpl<'tcx> TypeVisitable<'tcx> for InstantiatedPredicates<'tcx>
impl<'tcx> TypeVisitable<'tcx> for InstantiatedPredicates<'tcx>
sourcefn visit_with<__V: TypeVisitor<'tcx>>(
&self,
__visitor: &mut __V
) -> ControlFlow<__V::BreakTy>
fn visit_with<__V: TypeVisitor<'tcx>>(
&self,
__visitor: &mut __V
) -> ControlFlow<__V::BreakTy>
sourcefn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
true
if self
has any late-bound regions that are either
bound by binder
or bound by some binder outside of binder
.
If binder
is ty::INNERMOST
, this indicates whether
there are any late-bound regions that appear free. Read moresourcefn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
true
if this self
has any regions that escape binder
(and
hence are not bound by it). Read morefn has_escaping_bound_vars(&self) -> bool
fn has_type_flags(&self, flags: TypeFlags) -> bool
fn has_projections(&self) -> bool
fn has_opaque_types(&self) -> bool
fn references_error(&self) -> bool
fn error_reported(&self) -> Option<ErrorGuaranteed>
fn has_param_types_or_consts(&self) -> bool
fn has_infer_regions(&self) -> bool
fn has_infer_types(&self) -> bool
fn has_infer_types_or_consts(&self) -> bool
fn needs_infer(&self) -> bool
fn has_placeholders(&self) -> bool
fn needs_subst(&self) -> bool
sourcefn has_free_regions(&self) -> bool
fn has_free_regions(&self) -> bool
fn has_erased_regions(&self) -> bool
sourcefn has_erasable_regions(&self) -> bool
fn has_erasable_regions(&self) -> bool
sourcefn is_global(&self) -> bool
fn is_global(&self) -> bool
sourcefn has_late_bound_regions(&self) -> bool
fn has_late_bound_regions(&self) -> bool
sourcefn still_further_specializable(&self) -> bool
fn still_further_specializable(&self) -> bool
impl
specialization. Read moreAuto Trait Implementations
impl<'tcx> !RefUnwindSafe for InstantiatedPredicates<'tcx>
impl<'tcx> !Send for InstantiatedPredicates<'tcx>
impl<'tcx> !Sync for InstantiatedPredicates<'tcx>
impl<'tcx> Unpin for InstantiatedPredicates<'tcx>
impl<'tcx> !UnwindSafe for InstantiatedPredicates<'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T, R> InternIteratorElement<T, R> for T
impl<T, R> InternIteratorElement<T, R> for T
type Output = R
fn intern_with<I, F>(iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Outputwhere
I: Iterator<Item = T>,
F: FnOnce(&[T]) -> R,
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
sourceimpl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
impl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
default fn from_cycle_error(tcx: CTX) -> T
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 48 bytes