use rustc_hir::def_id::DefId;
use rustc_hir::lang_items::LangItem;
-use rustc_infer::traits::ObligationCause;
use rustc_middle::arena::ArenaAllocatable;
use rustc_middle::infer::canonical::{Canonical, CanonicalizedQueryResponse, QueryResponse};
use rustc_middle::traits::query::Fallible;
span: Span,
) -> bool;
- fn partially_normalize_associated_types_in<T>(
- &self,
- cause: ObligationCause<'tcx>,
- param_env: ty::ParamEnv<'tcx>,
- value: T,
- ) -> InferOk<'tcx, T>
- where
- T: TypeFoldable<'tcx>;
-
/// Check whether a `ty` implements given trait(trait_def_id).
/// The inputs are:
///
traits::type_known_to_meet_bound_modulo_regions(self, param_env, ty, lang_item, span)
}
- /// Normalizes associated types in `value`, potentially returning
- /// new obligations that must further be processed.
- #[instrument(level = "debug", skip(self, cause, param_env), ret)]
- fn partially_normalize_associated_types_in<T>(
- &self,
- cause: ObligationCause<'tcx>,
- param_env: ty::ParamEnv<'tcx>,
- value: T,
- ) -> InferOk<'tcx, T>
- where
- T: TypeFoldable<'tcx>,
- {
- let mut selcx = traits::SelectionContext::new(self);
- let traits::Normalized { value, obligations } =
- traits::normalize(&mut selcx, param_env, cause, value);
- InferOk { value, obligations }
- }
-
#[instrument(level = "debug", skip(self, params), ret)]
fn type_implements_trait(
&self,