Struct rustc::ty::InstantiatedPredicates [−][src]
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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 a 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>>
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Methods
impl<'tcx> InstantiatedPredicates<'tcx>
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impl<'tcx> InstantiatedPredicates<'tcx>
pub fn empty() -> InstantiatedPredicates<'tcx>
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pub fn empty() -> InstantiatedPredicates<'tcx>
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pub fn is_empty(&self) -> bool
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pub fn is_empty(&self) -> bool
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Trait Implementations
impl<'tcx> TypeFoldable<'tcx> for InstantiatedPredicates<'tcx>
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impl<'tcx> TypeFoldable<'tcx> for InstantiatedPredicates<'tcx>
fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_fold_with<'gcx: 'tcx, V: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut V
) -> Self
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
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fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(
&self,
folder: &mut F
) -> Self
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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool
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fn has_regions_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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fn has_regions_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
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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 more
fn has_regions_bound_above(&self, binder: DebruijnIndex) -> bool
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fn has_regions_bound_above(&self, binder: DebruijnIndex) -> bool
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True if this self
has any regions that escape binder
(and hence are not bound by it). Read more
fn has_escaping_regions(&self) -> bool
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fn has_escaping_regions(&self) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_type_flags(&self, flags: TypeFlags) -> bool
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fn has_projections(&self) -> bool
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fn has_projections(&self) -> bool
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fn references_error(&self) -> bool
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fn references_error(&self) -> bool
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fn has_param_types(&self) -> bool
[src]
fn has_param_types(&self) -> bool
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fn has_self_ty(&self) -> bool
[src]
fn has_self_ty(&self) -> bool
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fn has_infer_types(&self) -> bool
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fn has_infer_types(&self) -> bool
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fn needs_infer(&self) -> bool
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fn needs_infer(&self) -> bool
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fn has_skol(&self) -> bool
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fn has_skol(&self) -> bool
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fn needs_subst(&self) -> bool
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fn needs_subst(&self) -> bool
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fn has_re_skol(&self) -> bool
[src]
fn has_re_skol(&self) -> bool
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fn has_closure_types(&self) -> bool
[src]
fn has_closure_types(&self) -> bool
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fn has_free_regions(&self) -> bool
[src]
fn has_free_regions(&self) -> bool
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"Free" regions in this context means that it has any region that is not (a) erased or (b) late-bound. Read more
fn has_erasable_regions(&self) -> bool
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fn has_erasable_regions(&self) -> bool
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True if there any any un-erased free regions.
fn is_global(&self) -> bool
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fn is_global(&self) -> bool
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Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Read more
fn has_late_bound_regions(&self) -> bool
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fn has_late_bound_regions(&self) -> bool
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True if there are any late-bound regions
fn visit_tys_shallow(
&self,
visit: impl FnMut(Ty<'tcx>) -> bool
) -> bool
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fn visit_tys_shallow(
&self,
visit: impl FnMut(Ty<'tcx>) -> bool
) -> bool
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A visitor that does not recurse into types, works like fn walk_shallow
in Ty
.
impl<'tcx> Clone for InstantiatedPredicates<'tcx>
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impl<'tcx> Clone for InstantiatedPredicates<'tcx>
fn clone(&self) -> InstantiatedPredicates<'tcx>
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fn clone(&self) -> InstantiatedPredicates<'tcx>
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl<'tcx> Print for InstantiatedPredicates<'tcx>
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impl<'tcx> Print for InstantiatedPredicates<'tcx>
fn print<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print_to_string(&self, cx: &mut PrintContext) -> String
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fn print_to_string(&self, cx: &mut PrintContext) -> String
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fn print_display<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print_display<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print_display_to_string(&self, cx: &mut PrintContext) -> String
[src]
fn print_display_to_string(&self, cx: &mut PrintContext) -> String
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fn print_debug<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print_debug<F: Write>(&self, f: &mut F, cx: &mut PrintContext) -> Result
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fn print_debug_to_string(&self, cx: &mut PrintContext) -> String
[src]
fn print_debug_to_string(&self, cx: &mut PrintContext) -> String
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impl<'tcx> Debug for InstantiatedPredicates<'tcx>
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impl<'tcx> Debug for InstantiatedPredicates<'tcx>
Auto Trait Implementations
impl<'tcx> !Send for InstantiatedPredicates<'tcx>
impl<'tcx> !Send for InstantiatedPredicates<'tcx>
impl<'tcx> !Sync for InstantiatedPredicates<'tcx>
impl<'tcx> !Sync for InstantiatedPredicates<'tcx>