Struct rustc_trait_selection::traits::project::AssocTypeNormalizer

struct AssocTypeNormalizer<'a, 'b, 'tcx> {
    selcx: &'a mut SelectionContext<'b, 'tcx>,
    param_env: ParamEnv<'tcx>,
    cause: ObligationCause<'tcx>,
    obligations: &'a mut Vec<PredicateObligation<'tcx>>,
    depth: usize,
    universes: Vec<Option<UniverseIndex>>,
    eager_inference_replacement: bool,
}

Fields

selcx: &'a mut SelectionContext<'b, 'tcx>

param_env: ParamEnv<'tcx>

cause: ObligationCause<'tcx>

obligations: &'a mut Vec<PredicateObligation<'tcx>>

depth: usize

universes: Vec<Option<UniverseIndex>>

eager_inference_replacement: bool

If true, when a projection is unable to be completed, an inference variable will be created and an obligation registered to project to that inference variable. Also, constants will be eagerly evaluated.

Implementations

impl<'a, 'b, 'tcx> AssocTypeNormalizer<'a, 'b, 'tcx>

fn new(
    selcx: &'a mut SelectionContext<'b, 'tcx>,
    param_env: ParamEnv<'tcx>,
    cause: ObligationCause<'tcx>,
    depth: usize,
    obligations: &'a mut Vec<PredicateObligation<'tcx>>
) -> AssocTypeNormalizer<'a, 'b, 'tcx>

fn new_without_eager_inference_replacement(
    selcx: &'a mut SelectionContext<'b, 'tcx>,
    param_env: ParamEnv<'tcx>,
    cause: ObligationCause<'tcx>,
    depth: usize,
    obligations: &'a mut Vec<PredicateObligation<'tcx>>
) -> AssocTypeNormalizer<'a, 'b, 'tcx>

fn fold<T: TypeFoldable<'tcx>>(&mut self, value: T) -> T

Trait Implementations

impl<'a, 'b, 'tcx> TypeFolder<'tcx> for AssocTypeNormalizer<'a, 'b, 'tcx>

fn tcx<'c>(&'c self) -> TyCtxt<'tcx>

fn fold_binder<T: TypeFoldable<'tcx>>(
    &mut self,
    t: Binder<'tcx, T>
) -> Binder<'tcx, T>

fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx>

fn fold_const(&mut self, constant: Const<'tcx>) -> Const<'tcx>

fn fold_region(&mut self, r: Region<'tcx>) -> Region<'tcx>

fn fold_unevaluated(
    &mut self,
    uv: Unevaluated<'tcx, Option<Promoted>>
) -> Unevaluated<'tcx, Option<Promoted>>

fn fold_predicate(&mut self, p: Predicate<'tcx>) -> Predicate<'tcx>

fn fold_mir_const(&mut self, c: ConstantKind<'tcx>) -> ConstantKind<'tcx>

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: 88 bytes