pub struct InstantiatedPredicates<'tcx> {
pub predicates: Vec<Predicate<'tcx>>,
}
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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>]]
.
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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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
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True if this self
has any regions that escape binder
(and hence are not bound by it). Read more
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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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
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True if there any any un-erased free regions.
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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
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True if there are any late-bound regions
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A visitor that does not recurse into types, works like fn walk_shallow
in Ty
.
Performs copy-assignment from source
. Read more
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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Formats the value using the given formatter. Read more
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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🔬 This is a nightly-only experimental API. (rustc_private
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Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
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The type returned in the event of a conversion error.
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Immutably borrows from an owned value. Read more
type Error = <U as TryFrom<T>>::Error
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)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more