Struct rustc_trait_selection::solve::EvalCtxt
source · pub struct EvalCtxt<'a, D, I = I>where
D: SolverDelegate<Interner = I>,
I: Interner,{
delegate: &'a D,
variables: <I as Interner>::CanonicalVars,
is_normalizes_to_goal: bool,
pub(super) var_values: CanonicalVarValues<I>,
predefined_opaques_in_body: <I as Interner>::PredefinedOpaques,
pub(super) max_input_universe: UniverseIndex,
pub(super) search_graph: &'a mut SearchGraph<SearchGraphDelegate<D>, I>,
nested_goals: NestedGoals<I>,
tainted: Result<(), NoSolution>,
pub(super) inspect: ProofTreeBuilder<D, I>,
}
Fields§
§delegate: &'a D
§variables: <I as Interner>::CanonicalVars
§is_normalizes_to_goal: bool
§var_values: CanonicalVarValues<I>
§predefined_opaques_in_body: <I as Interner>::PredefinedOpaques
§max_input_universe: UniverseIndex
§search_graph: &'a mut SearchGraph<SearchGraphDelegate<D>, I>
§nested_goals: NestedGoals<I>
§tainted: Result<(), NoSolution>
§inspect: ProofTreeBuilder<D, I>
Implementations§
source§impl<D, I> EvalCtxt<'_, D, I>where
D: SolverDelegate<Interner = I>,
I: Interner,
impl<D, I> EvalCtxt<'_, D, I>where
D: SolverDelegate<Interner = I>,
I: Interner,
sourcepub fn instantiate_normalizes_to_term(
&mut self,
goal: Goal<I, NormalizesTo<I>>,
term: <I as Interner>::Term,
)
pub fn instantiate_normalizes_to_term( &mut self, goal: Goal<I, NormalizesTo<I>>, term: <I as Interner>::Term, )
When normalizing an associated item, constrain the expected term to term
.
We know term
to always be a fully unconstrained inference variable, so
eq
should never fail here. However, in case term
contains aliases, we
emit nested AliasRelate
goals to structurally normalize the alias.
Auto Trait Implementations§
impl<'a, D, I> Freeze for EvalCtxt<'a, D, I>where
<D as Deref>::Target: Sized,
<I as Interner>::CanonicalVars: Freeze,
<I as Interner>::PredefinedOpaques: Freeze,
<I as Interner>::GenericArgs: Freeze,
impl<'a, D, I> RefUnwindSafe for EvalCtxt<'a, D, I>where
<D as Deref>::Target: Sized,
<I as Interner>::CanonicalVars: RefUnwindSafe,
<I as Interner>::PredefinedOpaques: RefUnwindSafe,
D: RefUnwindSafe,
<I as Interner>::GenericArgs: RefUnwindSafe,
<I as Interner>::ParamEnv: RefUnwindSafe,
<I as Interner>::Term: RefUnwindSafe,
<I as Interner>::Predicate: RefUnwindSafe,
<I as Interner>::DefId: RefUnwindSafe,
<I as Interner>::DefiningOpaqueTypes: RefUnwindSafe,
<I as Interner>::GenericArg: RefUnwindSafe,
<I as Interner>::ExternalConstraints: RefUnwindSafe,
impl<'a, D, I> Send for EvalCtxt<'a, D, I>where
<D as Deref>::Target: Sized,
<I as Interner>::CanonicalVars: Send,
<I as Interner>::PredefinedOpaques: Send,
D: Sync + Send,
<I as Interner>::GenericArgs: Send,
<I as Interner>::DefiningOpaqueTypes: Send,
<I as Interner>::ParamEnv: Send,
<I as Interner>::Term: Send,
<I as Interner>::Predicate: Send,
<I as Interner>::DefId: Send,
<I as Interner>::ExternalConstraints: Send,
<I as Interner>::GenericArg: Send,
impl<'a, D, I> Sync for EvalCtxt<'a, D, I>where
<D as Deref>::Target: Sized,
<I as Interner>::CanonicalVars: Sync,
<I as Interner>::PredefinedOpaques: Sync,
D: Sync,
<I as Interner>::GenericArgs: Sync,
<I as Interner>::ParamEnv: Sync,
<I as Interner>::Term: Sync,
<I as Interner>::Predicate: Sync,
<I as Interner>::DefiningOpaqueTypes: Sync,
<I as Interner>::DefId: Sync,
<I as Interner>::GenericArg: Sync,
<I as Interner>::ExternalConstraints: Sync,
impl<'a, D, I> Unpin for EvalCtxt<'a, D, I>
impl<'a, D, I = <D as SolverDelegate>::Interner> !UnwindSafe for EvalCtxt<'a, D, I>
Blanket Implementations§
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
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impl<T, R> CollectAndApply<T, R> for T
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impl<T> Filterable for T
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self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
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source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
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U: UpcastFrom<I, T>,
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Tcx: DepContext,
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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.