Struct rustc_middle::traits::query::DropckConstraint
source · pub struct DropckConstraint<'tcx> {
pub outlives: Vec<GenericArg<'tcx>>,
pub dtorck_types: Vec<Ty<'tcx>>,
pub overflows: Vec<Ty<'tcx>>,
}Expand description
A set of constraints that need to be satisfied in order for a type to be valid for destruction.
Fields
outlives: Vec<GenericArg<'tcx>>Types that are required to be alive in order for this type to be valid for destruction.
dtorck_types: Vec<Ty<'tcx>>Types that could not be resolved: projections and params.
overflows: Vec<Ty<'tcx>>If, during the computation of the dtorck constraint, we overflow, that gets recorded here. The caller is expected to report an error.
Implementations
sourceimpl<'tcx> DropckConstraint<'tcx>
impl<'tcx> DropckConstraint<'tcx>
pub fn empty() -> DropckConstraint<'tcx>
Trait Implementations
sourceimpl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for DropckConstraint<'tcx>
impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for DropckConstraint<'tcx>
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut Self
fn allocate_from_iter<'a>(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<'tcx> Clone for DropckConstraint<'tcx>
impl<'tcx> Clone for DropckConstraint<'tcx>
sourcefn clone(&self) -> DropckConstraint<'tcx>
fn clone(&self) -> DropckConstraint<'tcx>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moresourceimpl<'tcx> Debug for DropckConstraint<'tcx>
impl<'tcx> Debug for DropckConstraint<'tcx>
sourceimpl<'tcx> FromIterator<DropckConstraint<'tcx>> for DropckConstraint<'tcx>
impl<'tcx> FromIterator<DropckConstraint<'tcx>> for DropckConstraint<'tcx>
sourcefn from_iter<I: IntoIterator<Item = DropckConstraint<'tcx>>>(iter: I) -> Self
fn from_iter<I: IntoIterator<Item = DropckConstraint<'tcx>>>(iter: I) -> Self
Creates a value from an iterator. Read more
sourceimpl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for DropckConstraint<'tcx>
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for DropckConstraint<'tcx>
fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for DropckConstraint<'tcx>
impl<'tcx> Send for DropckConstraint<'tcx>
impl<'tcx> Sync for DropckConstraint<'tcx>
impl<'tcx> Unpin for DropckConstraint<'tcx>
impl<'tcx> !UnwindSafe for DropckConstraint<'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
Mutably borrows from an owned value. Read more
sourceimpl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
sourcedefault fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
default fn to_fingerprint(&self, tcx: Ctxt) -> 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). Read more
default fn to_debug_str(&self, Ctxt) -> String
sourcedefault fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
This method tries to recover the query key from the given
DepNode,
something which is needed when forcing DepNodes 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. Read moresourceimpl<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: 72 bytes