pub type Key<'tcx> = ();
Trait Implementations§
source§impl<'tcx> DepNodeParams<TyCtxt<'tcx>> for ()
impl<'tcx> DepNodeParams<TyCtxt<'tcx>> for ()
fn fingerprint_style() -> FingerprintStyle
source§fn to_fingerprint(&self, _: TyCtxt<'tcx>) -> Fingerprint
fn to_fingerprint(&self, _: TyCtxt<'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).
source§fn recover(_: TyCtxt<'tcx>, _: &DepNode) -> Option<Self>
fn recover(_: TyCtxt<'tcx>, _: &DepNode) -> Option<Self>
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.fn to_debug_str(&self, _: Tcx) -> String
source§impl Key for ()
impl Key for ()
type CacheSelector = SingleCacheSelector
source§fn default_span(&self, _: TyCtxt<'_>) -> Span
fn default_span(&self, _: TyCtxt<'_>) -> Span
In the event that a cycle occurs, if no explicit span has been
given for a query with key
self
, what span should we use?source§fn key_as_def_id(&self) -> Option<DefId>
fn key_as_def_id(&self) -> Option<DefId>
fn ty_adt_id(&self) -> Option<DefId>
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.
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