pub type ProvidedValue<'tcx> = Result<&'tcx ConcreteOpaqueTypes<'tcx>, ErrorGuaranteed>;
Expand description
This type alias specifies the type returned from query providers and the type
used for decoding. For regular queries this is the declared returned type V
,
but arena_cache
will use <V as ArenaCached>::Provided
instead.
Aliased Type§
pub enum ProvidedValue<'tcx> {
Ok(&'tcx ConcreteOpaqueTypes<'tcx>),
Err(ErrorGuaranteed),
}
Variants§
Ok(&'tcx ConcreteOpaqueTypes<'tcx>)
Contains the success value
Err(ErrorGuaranteed)
Contains the error value
Layout§
Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.