Struct rustc_trait_selection::infer::at::At
source · pub struct At<'a, 'tcx> {
pub infcx: &'a InferCtxt<'tcx>,
pub cause: &'a ObligationCause<'tcx>,
pub param_env: ParamEnv<'tcx>,
}
Fields§
§infcx: &'a InferCtxt<'tcx>
§cause: &'a ObligationCause<'tcx>
§param_env: ParamEnv<'tcx>
Trait Implementations§
source§impl<'tcx> NormalizeExt<'tcx> for At<'_, 'tcx>
impl<'tcx> NormalizeExt<'tcx> for At<'_, 'tcx>
source§fn normalize<T: TypeFoldable<TyCtxt<'tcx>>>(&self, value: T) -> InferOk<'tcx, T>
fn normalize<T: TypeFoldable<TyCtxt<'tcx>>>(&self, value: T) -> InferOk<'tcx, T>
AssocTypeNormalizer
. Read moresource§fn deeply_normalize<T: TypeFoldable<TyCtxt<'tcx>>>(
self,
value: T,
fulfill_cx: &mut dyn TraitEngine<'tcx>
) -> Result<T, Vec<FulfillmentError<'tcx>>>
fn deeply_normalize<T: TypeFoldable<TyCtxt<'tcx>>>( self, value: T, fulfill_cx: &mut dyn TraitEngine<'tcx> ) -> Result<T, Vec<FulfillmentError<'tcx>>>
value
, replacing all aliases which can by normalized in
the current environment. In the new solver this errors in case normalization
fails or is ambiguous. This only normalizes opaque types with Reveal::All
. Read moresource§impl<'cx, 'tcx> QueryNormalizeExt<'tcx> for At<'cx, 'tcx>
impl<'cx, 'tcx> QueryNormalizeExt<'tcx> for At<'cx, 'tcx>
source§fn query_normalize<T>(self, value: T) -> Result<Normalized<'tcx, T>, NoSolution>where
T: TypeFoldable<TyCtxt<'tcx>>,
fn query_normalize<T>(self, value: T) -> Result<Normalized<'tcx, T>, NoSolution>where T: TypeFoldable<TyCtxt<'tcx>>,
Normalize value
in the context of the inference context,
yielding a resulting type, or an error if value
cannot be
normalized. If you don’t care about regions, you should prefer
normalize_erasing_regions
, which is more efficient.
If the normalization succeeds and is unambiguous, returns back the normalized value along with various outlives relations (in the form of obligations that must be discharged).
N.B., this will eventually be the main means of normalizing, but for now should be used only when we actually know that normalization will succeed, since error reporting and other details are still “under development”.
source§impl<'tcx> StructurallyNormalizeExt<'tcx> for At<'_, 'tcx>
impl<'tcx> StructurallyNormalizeExt<'tcx> for At<'_, 'tcx>
fn structurally_normalize( &self, ty: Ty<'tcx>, fulfill_cx: &mut dyn TraitEngine<'tcx> ) -> Result<Ty<'tcx>, Vec<FulfillmentError<'tcx>>>
Auto Trait Implementations§
impl<'a, 'tcx> !RefUnwindSafe for At<'a, 'tcx>
impl<'a, 'tcx> !Send for At<'a, 'tcx>
impl<'a, 'tcx> !Sync for At<'a, 'tcx>
impl<'a, 'tcx> Unpin for At<'a, 'tcx>
impl<'a, 'tcx> !UnwindSafe for At<'a, 'tcx>
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
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: 24 bytes