Struct rustc_middle::ty::adjustment::CoerceUnsizedInfo
source · pub struct CoerceUnsizedInfo {
pub custom_kind: Option<CustomCoerceUnsized>,
}
Expand description
Information for CoerceUnsized
impls, storing information we
have computed about the coercion.
This struct can be obtained via the coerce_impl_info
query.
Demanding this struct also has the side-effect of reporting errors
for inappropriate impls.
Fields§
§custom_kind: Option<CustomCoerceUnsized>
If this is a “custom coerce” impl, then what kind of custom
coercion is it? This applies to impls of CoerceUnsized
for
structs, primarily, where we store a bit of info about which
fields need to be coerced.
Trait Implementations§
source§impl Clone for CoerceUnsizedInfo
impl Clone for CoerceUnsizedInfo
source§fn clone(&self) -> CoerceUnsizedInfo
fn clone(&self) -> CoerceUnsizedInfo
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 Debug for CoerceUnsizedInfo
impl Debug for CoerceUnsizedInfo
source§impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CoerceUnsizedInfo
impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CoerceUnsizedInfo
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )
source§impl ParameterizedOverTcx for CoerceUnsizedInfo
impl ParameterizedOverTcx for CoerceUnsizedInfo
type Value<'tcx> = CoerceUnsizedInfo
impl Copy for CoerceUnsizedInfo
Auto Trait Implementations§
impl RefUnwindSafe for CoerceUnsizedInfo
impl Send for CoerceUnsizedInfo
impl Sync for CoerceUnsizedInfo
impl Unpin for CoerceUnsizedInfo
impl UnwindSafe for CoerceUnsizedInfo
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<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a 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, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<Tcx, T> DepNodeParams<Tcx> for Twhere
Tcx: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Tcx, T> DepNodeParams<Tcx> for Twhere Tcx: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
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<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<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> 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: &[QueryInfo], _guar: ErrorGuaranteed ) -> 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: 4 bytes