pub struct ConstConditions<'tcx> {
pub parent: Option<DefId>,
pub predicates: &'tcx [(PolyTraitRef<'tcx>, Span)],
}
Expand description
~const
bounds for a given item. This is represented using a struct much like
GenericPredicates
, where you can either choose to only instantiate the “own”
bounds or all of the bounds including those from the parent. This distinction
is necessary for code like compare_method_predicate_entailment
.
Fields§
§parent: Option<DefId>
§predicates: &'tcx [(PolyTraitRef<'tcx>, Span)]
Implementations§
Source§impl<'tcx> ConstConditions<'tcx>
impl<'tcx> ConstConditions<'tcx>
pub fn instantiate( self, tcx: TyCtxt<'tcx>, args: GenericArgsRef<'tcx>, ) -> Vec<(PolyTraitRef<'tcx>, Span)>
pub fn instantiate_own( self, tcx: TyCtxt<'tcx>, args: GenericArgsRef<'tcx>, ) -> impl Iterator<Item = (PolyTraitRef<'tcx>, Span)> + DoubleEndedIterator + ExactSizeIterator
pub fn instantiate_own_identity( self, ) -> impl Iterator<Item = (PolyTraitRef<'tcx>, Span)> + DoubleEndedIterator + ExactSizeIterator
fn instantiate_into( self, tcx: TyCtxt<'tcx>, instantiated: &mut Vec<(PolyTraitRef<'tcx>, Span)>, args: GenericArgsRef<'tcx>, )
pub fn instantiate_identity( self, tcx: TyCtxt<'tcx>, ) -> Vec<(PolyTraitRef<'tcx>, Span)>
fn instantiate_identity_into( self, tcx: TyCtxt<'tcx>, instantiated: &mut Vec<(PolyTraitRef<'tcx>, Span)>, )
Trait Implementations§
Source§impl<'tcx> Clone for ConstConditions<'tcx>
impl<'tcx> Clone for ConstConditions<'tcx>
Source§fn clone(&self) -> ConstConditions<'tcx>
fn clone(&self) -> ConstConditions<'tcx>
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl<'tcx> Debug for ConstConditions<'tcx>
impl<'tcx> Debug for ConstConditions<'tcx>
Source§impl<'tcx> Default for ConstConditions<'tcx>
impl<'tcx> Default for ConstConditions<'tcx>
Source§fn default() -> ConstConditions<'tcx>
fn default() -> ConstConditions<'tcx>
Returns the “default value” for a type. Read more
Source§impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for ConstConditions<'tcx>
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for ConstConditions<'tcx>
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher, )
Source§impl ParameterizedOverTcx for ConstConditions<'static>
impl ParameterizedOverTcx for ConstConditions<'static>
type Value<'tcx> = ConstConditions<'tcx>
impl<'tcx> Copy for ConstConditions<'tcx>
Auto Trait Implementations§
impl<'tcx> DynSend for ConstConditions<'tcx>
impl<'tcx> DynSync for ConstConditions<'tcx>
impl<'tcx> Freeze for ConstConditions<'tcx>
impl<'tcx> !RefUnwindSafe for ConstConditions<'tcx>
impl<'tcx> Send for ConstConditions<'tcx>
impl<'tcx> Sync for ConstConditions<'tcx>
impl<'tcx> Unpin for ConstConditions<'tcx>
impl<'tcx> !UnwindSafe for ConstConditions<'tcx>
Blanket Implementations§
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
Source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'tcx Arena<'tcx>) -> &'tcx mut T
fn allocate_from_iter( arena: &'tcx Arena<'tcx>, iter: impl IntoIterator<Item = T>, ) -> &'tcx mut [T]
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
Source§impl<Tcx, T> DepNodeParams<Tcx> for T
impl<Tcx, T> DepNodeParams<Tcx> for T
default fn fingerprint_style() -> FingerprintStyle
Source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
This method turns the parameters of a DepNodeConstructor into an opaque
Fingerprint to be used in DepNode.
Not all DepNodeParams support being turned into a Fingerprint (they
don’t need to if the corresponding DepNode is anonymous).
default fn to_debug_str(&self, _: Tcx) -> String
Source§default fn recover(_: Tcx, _: &DepNode) -> Option<T>
default fn recover(_: Tcx, _: &DepNode) -> Option<T>
This method tries to recover the query key from the given
DepNode
,
something which is needed when forcing DepNode
s during red-green
evaluation. The query system will only call this method if
fingerprint_style()
is not FingerprintStyle::Opaque
.
It is always valid to return None
here, in which case incremental
compilation will treat the query as having changed instead of forcing it.Source§impl<T> Filterable for T
impl<T> Filterable for T
Source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
Source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
Source§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
Source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
Source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
Source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
Source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
Source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
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: 24 bytes