Struct rustc_middle::ty::FieldDef
source · [−]pub struct FieldDef {
pub did: DefId,
pub name: Symbol,
pub vis: Visibility,
}Fields
did: DefIdname: Symbolvis: VisibilityImplementations
fn uninhabited_from(
&self,
tcx: TyCtxt<'tcx>,
substs: SubstsRef<'tcx>,
is_enum: bool,
param_env: ParamEnv<'tcx>
) -> DefIdForest
fn uninhabited_from(
&self,
tcx: TyCtxt<'tcx>,
substs: SubstsRef<'tcx>,
is_enum: bool,
param_env: ParamEnv<'tcx>
) -> DefIdForest
Calculates the forest of DefIds from which this field is visibly uninhabited.
Returns the type of this field. The resulting type is not normalized. The subst is
typically obtained via the second field of TyKind::Adt.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for FieldDef
impl UnwindSafe for FieldDef
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
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
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 more
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: 20 bytes