Replace tcx.mk_trait_ref
with ty::TraitRef::new
This commit is contained in:
parent
2d8c905e15
commit
46b01abbcd
41 changed files with 193 additions and 125 deletions
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@ -66,7 +66,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
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params: impl IntoIterator<Item: Into<GenericArg<'tcx>>>,
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param_env: ty::ParamEnv<'tcx>,
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) -> traits::EvaluationResult {
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let trait_ref = self.tcx.mk_trait_ref(trait_def_id, params);
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let trait_ref = ty::TraitRef::new(self.tcx, trait_def_id, params);
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let obligation = traits::Obligation {
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cause: traits::ObligationCause::dummy(),
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@ -274,8 +274,9 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
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.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS);
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}
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};
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let output_is_sized_pred = tupled_inputs_and_output
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.map_bound(|(_, output)| tcx.at(DUMMY_SP).mk_trait_ref(LangItem::Sized, [output]));
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let output_is_sized_pred = tupled_inputs_and_output.map_bound(|(_, output)| {
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ty::TraitRef::from_lang_item(tcx.at(DUMMY_SP), LangItem::Sized, [output])
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});
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let pred = tupled_inputs_and_output
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.map_bound(|(inputs, output)| ty::ProjectionPredicate {
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@ -333,7 +334,8 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
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ty::Alias(_, _) | ty::Param(_) | ty::Placeholder(..) => {
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// FIXME(ptr_metadata): It would also be possible to return a `Ok(Ambig)` with no constraints.
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let sized_predicate = ty::Binder::dummy(tcx.at(DUMMY_SP).mk_trait_ref(
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let sized_predicate = ty::Binder::dummy(ty::TraitRef::from_lang_item(
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tcx.at(DUMMY_SP),
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LangItem::Sized,
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[ty::GenericArg::from(goal.predicate.self_ty())],
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));
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@ -242,12 +242,13 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS);
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}
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};
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let output_is_sized_pred = tupled_inputs_and_output
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.map_bound(|(_, output)| tcx.at(DUMMY_SP).mk_trait_ref(LangItem::Sized, [output]));
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let output_is_sized_pred = tupled_inputs_and_output.map_bound(|(_, output)| {
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ty::TraitRef::from_lang_item(tcx.at(DUMMY_SP), LangItem::Sized, [output])
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});
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let pred = tupled_inputs_and_output
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.map_bound(|(inputs, _)| {
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tcx.mk_trait_ref(goal.predicate.def_id(), [goal.predicate.self_ty(), inputs])
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ty::TraitRef::new(tcx, goal.predicate.def_id(), [goal.predicate.self_ty(), inputs])
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})
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.to_predicate(tcx);
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// A built-in `Fn` impl only holds if the output is sized.
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@ -312,9 +313,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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Self::consider_implied_clause(
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ecx,
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goal,
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ty::Binder::dummy(
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tcx.mk_trait_ref(goal.predicate.def_id(), [self_ty, generator.resume_ty()]),
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)
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ty::Binder::dummy(ty::TraitRef::new(
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tcx,
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goal.predicate.def_id(),
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[self_ty, generator.resume_ty()],
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))
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.to_predicate(tcx),
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// Technically, we need to check that the generator types are Sized,
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// but that's already proven by the generator being WF.
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@ -360,9 +363,10 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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data.iter().map(|pred| goal.with(tcx, pred.with_self_ty(tcx, a_ty))),
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);
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// The type must be Sized to be unsized.
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ecx.add_goal(
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goal.with(tcx, ty::Binder::dummy(tcx.mk_trait_ref(sized_def_id, [a_ty]))),
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);
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ecx.add_goal(goal.with(
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tcx,
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ty::Binder::dummy(ty::TraitRef::new(tcx, sized_def_id, [a_ty])),
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));
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// The type must outlive the lifetime of the `dyn` we're unsizing into.
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ecx.add_goal(
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goal.with(tcx, ty::Binder::dummy(ty::OutlivesPredicate(a_ty, region))),
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@ -411,9 +415,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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ecx.eq(goal.param_env, unsized_a_ty, b_ty)?;
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ecx.add_goal(goal.with(
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tcx,
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ty::Binder::dummy(
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tcx.mk_trait_ref(goal.predicate.def_id(), [a_tail_ty, b_tail_ty]),
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),
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ty::Binder::dummy(ty::TraitRef::new(
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tcx,
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goal.predicate.def_id(),
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[a_tail_ty, b_tail_ty],
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)),
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));
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ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes)
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}
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@ -432,9 +438,11 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> {
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// Similar to ADTs, require that the rest of the fields are equal.
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ecx.add_goal(goal.with(
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tcx,
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ty::Binder::dummy(
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tcx.mk_trait_ref(goal.predicate.def_id(), [*a_last_ty, *b_last_ty]),
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),
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ty::Binder::dummy(ty::TraitRef::new(
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tcx,
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goal.predicate.def_id(),
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[*a_last_ty, *b_last_ty],
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)),
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));
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ecx.evaluate_added_goals_and_make_canonical_response(Certainty::Yes)
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}
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@ -86,7 +86,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
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) -> AutoTraitResult<A> {
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let tcx = self.tcx;
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let trait_ref = tcx.mk_trait_ref(trait_did, [ty]);
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let trait_ref = ty::TraitRef::new(tcx, trait_did, [ty]);
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let infcx = tcx.infer_ctxt().build();
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let mut selcx = SelectionContext::new(&infcx);
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@ -263,7 +263,7 @@ impl<'tcx> AutoTraitFinder<'tcx> {
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let mut already_visited = FxHashSet::default();
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let mut predicates = VecDeque::new();
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predicates.push_back(ty::Binder::dummy(ty::TraitPredicate {
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trait_ref: infcx.tcx.mk_trait_ref(trait_did, [ty]),
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trait_ref: ty::TraitRef::new(infcx.tcx, trait_did, [ty]),
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constness: ty::BoundConstness::NotConst,
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// Auto traits are positive
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@ -97,7 +97,7 @@ impl<'a, 'tcx> ObligationCtxt<'a, 'tcx> {
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def_id: DefId,
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) {
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let tcx = self.infcx.tcx;
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let trait_ref = tcx.mk_trait_ref(def_id, [ty]);
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let trait_ref = ty::TraitRef::new(tcx, def_id, [ty]);
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self.register_obligation(Obligation {
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cause,
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recursion_depth: 0,
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@ -358,7 +358,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
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span: DUMMY_SP,
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kind: TypeVariableOriginKind::MiscVariable,
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});
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let trait_ref = self.tcx.mk_trait_ref(trait_def_id, [ty.skip_binder(), var]);
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let trait_ref = ty::TraitRef::new(self.tcx, trait_def_id, [ty.skip_binder(), var]);
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let obligation = Obligation::new(
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self.tcx,
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ObligationCause::dummy(),
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@ -3485,7 +3485,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> {
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_ => None,
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};
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let trait_pred = trait_pred.map_bound_ref(|tr| ty::TraitPredicate {
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trait_ref: self.tcx.mk_trait_ref(
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trait_ref: ty::TraitRef::new(self.tcx,
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trait_pred.def_id(),
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[field_ty].into_iter().chain(trait_substs),
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),
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@ -127,7 +127,7 @@ pub fn type_known_to_meet_bound_modulo_regions<'tcx>(
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ty: Ty<'tcx>,
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def_id: DefId,
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) -> bool {
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let trait_ref = ty::Binder::dummy(infcx.tcx.mk_trait_ref(def_id, [ty]));
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let trait_ref = ty::Binder::dummy(ty::TraitRef::new(infcx.tcx, def_id, [ty]));
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pred_known_to_hold_modulo_regions(infcx, param_env, trait_ref.without_const())
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}
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@ -769,9 +769,11 @@ fn receiver_is_dispatchable<'tcx>(
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let param_env = tcx.param_env(method.def_id);
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// Self: Unsize<U>
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let unsize_predicate = ty::Binder::dummy(
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tcx.mk_trait_ref(unsize_did, [tcx.types.self_param, unsized_self_ty]),
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)
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let unsize_predicate = ty::Binder::dummy(ty::TraitRef::new(
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tcx,
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unsize_did,
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[tcx.types.self_param, unsized_self_ty],
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))
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.without_const()
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.to_predicate(tcx);
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@ -782,7 +784,7 @@ fn receiver_is_dispatchable<'tcx>(
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if param.index == 0 { unsized_self_ty.into() } else { tcx.mk_param_from_def(param) }
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});
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ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, substs)).to_predicate(tcx)
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ty::Binder::dummy(ty::TraitRef::new(tcx, trait_def_id, substs)).to_predicate(tcx)
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};
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let caller_bounds =
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@ -797,9 +799,11 @@ fn receiver_is_dispatchable<'tcx>(
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// Receiver: DispatchFromDyn<Receiver[Self => U]>
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let obligation = {
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let predicate = ty::Binder::dummy(
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tcx.mk_trait_ref(dispatch_from_dyn_did, [receiver_ty, unsized_receiver_ty]),
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);
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let predicate = ty::Binder::dummy(ty::TraitRef::new(
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tcx,
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dispatch_from_dyn_did,
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[receiver_ty, unsized_receiver_ty],
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));
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Obligation::new(tcx, ObligationCause::dummy(), param_env, predicate)
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};
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@ -1319,7 +1319,7 @@ fn assemble_candidate_for_impl_trait_in_trait<'cx, 'tcx>(
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let trait_substs =
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obligation.predicate.substs.truncate_to(tcx, tcx.generics_of(trait_def_id));
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// FIXME(named-returns): Binders
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let trait_predicate = ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, trait_substs));
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let trait_predicate = ty::Binder::dummy(ty::TraitRef::new(tcx, trait_def_id, trait_substs));
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let _ = selcx.infcx.commit_if_ok(|_| {
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match selcx.select(&obligation.with(tcx, trait_predicate)) {
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@ -1683,7 +1683,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>(
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&obligation.with(
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selcx.tcx(),
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ty::Binder::dummy(
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selcx.tcx().at(obligation.cause.span()).mk_trait_ref(LangItem::Sized, [self_ty]),
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ty::TraitRef::from_lang_item(selcx.tcx().at(obligation.cause.span()), LangItem::Sized, [self_ty]),
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)
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.without_const(),
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),
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@ -1948,9 +1948,11 @@ fn confirm_builtin_candidate<'cx, 'tcx>(
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)
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});
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if check_is_sized {
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let sized_predicate = ty::Binder::dummy(
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tcx.at(obligation.cause.span()).mk_trait_ref(LangItem::Sized, [self_ty]),
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)
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let sized_predicate = ty::Binder::dummy(ty::TraitRef::from_lang_item(
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tcx.at(obligation.cause.span()),
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LangItem::Sized,
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[self_ty],
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))
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.without_const();
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obligations.push(obligation.with(tcx, sized_predicate));
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}
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@ -454,7 +454,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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obligation.param_env,
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self.tcx().mk_predicate(obligation.predicate.map_bound(|mut pred| {
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pred.trait_ref =
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self.tcx().mk_trait_ref(fn_ptr_trait, [pred.trait_ref.self_ty()]);
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ty::TraitRef::new(self.tcx(), fn_ptr_trait, [pred.trait_ref.self_ty()]);
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ty::PredicateKind::Clause(ty::Clause::Trait(pred))
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})),
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);
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@ -629,7 +629,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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}
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// <ty as Deref>
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let trait_ref = tcx.mk_trait_ref(tcx.lang_items().deref_trait()?, [ty]);
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let trait_ref = ty::TraitRef::new(tcx, tcx.lang_items().deref_trait()?, [ty]);
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let obligation =
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traits::Obligation::new(tcx, cause.clone(), param_env, ty::Binder::dummy(trait_ref));
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@ -646,8 +646,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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output_ty,
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&mut nested,
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);
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let tr =
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ty::Binder::dummy(self.tcx().at(cause.span).mk_trait_ref(LangItem::Sized, [output_ty]));
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let tr = ty::Binder::dummy(ty::TraitRef::from_lang_item(
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self.tcx().at(cause.span),
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LangItem::Sized,
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[output_ty],
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));
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nested.push(Obligation::new(self.infcx.tcx, cause, obligation.param_env, tr));
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Ok(ImplSourceFnPointerData { fn_ty: self_ty, nested })
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@ -1050,8 +1053,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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);
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// We can only make objects from sized types.
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let tr =
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ty::Binder::dummy(tcx.at(cause.span).mk_trait_ref(LangItem::Sized, [source]));
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let tr = ty::Binder::dummy(ty::TraitRef::from_lang_item(
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tcx.at(cause.span),
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LangItem::Sized,
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[source],
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));
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nested.push(predicate_to_obligation(tr.without_const().to_predicate(tcx)));
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// If the type is `Foo + 'a`, ensure that the type
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@ -1121,7 +1127,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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// Construct the nested `TailField<T>: Unsize<TailField<U>>` predicate.
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let tail_unsize_obligation = obligation.with(
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tcx,
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tcx.mk_trait_ref(obligation.predicate.def_id(), [source_tail, target_tail]),
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ty::TraitRef::new(
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tcx,
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obligation.predicate.def_id(),
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[source_tail, target_tail],
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),
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);
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nested.push(tail_unsize_obligation);
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}
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@ -1146,8 +1156,10 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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nested.extend(obligations);
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// Add a nested `T: Unsize<U>` predicate.
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let last_unsize_obligation = obligation
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.with(tcx, tcx.mk_trait_ref(obligation.predicate.def_id(), [a_last, b_last]));
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let last_unsize_obligation = obligation.with(
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tcx,
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ty::TraitRef::new(tcx, obligation.predicate.def_id(), [a_last, b_last]),
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);
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nested.push(last_unsize_obligation);
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}
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@ -1271,10 +1283,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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cause.clone(),
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obligation.recursion_depth + 1,
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self_ty.rebind(ty::TraitPredicate {
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trait_ref: self
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.tcx()
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.at(cause.span)
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.mk_trait_ref(LangItem::Destruct, [nested_ty]),
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trait_ref: ty::TraitRef::from_lang_item(
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self.tcx().at(cause.span),
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LangItem::Destruct,
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[nested_ty],
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),
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constness: ty::BoundConstness::ConstIfConst,
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polarity: ty::ImplPolarity::Positive,
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}),
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@ -1295,10 +1308,11 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
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// or it's an ADT (and we need to check for a custom impl during selection)
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_ => {
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let predicate = self_ty.rebind(ty::TraitPredicate {
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trait_ref: self
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.tcx()
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.at(cause.span)
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.mk_trait_ref(LangItem::Destruct, [nested_ty]),
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trait_ref: ty::TraitRef::from_lang_item(
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self.tcx().at(cause.span),
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LangItem::Destruct,
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[nested_ty],
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),
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constness: ty::BoundConstness::ConstIfConst,
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polarity: ty::ImplPolarity::Positive,
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});
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|
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@ -2412,7 +2412,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
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self.tcx(),
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cause.clone(),
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param_env,
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self.tcx().mk_trait_ref(trait_def_id, [normalized_ty]),
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ty::TraitRef::new(self.tcx(), trait_def_id, [normalized_ty]),
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);
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obligations.push(obligation);
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obligations
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|
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@ -262,7 +262,7 @@ pub fn closure_trait_ref_and_return_type<'tcx>(
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TupleArgumentsFlag::No => sig.skip_binder().inputs()[0],
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TupleArgumentsFlag::Yes => tcx.mk_tup(sig.skip_binder().inputs()),
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};
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let trait_ref = tcx.mk_trait_ref(fn_trait_def_id, [self_ty, arguments_tuple]);
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let trait_ref = ty::TraitRef::new(tcx, fn_trait_def_id, [self_ty, arguments_tuple]);
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sig.map_bound(|sig| (trait_ref, sig.output()))
|
||||
}
|
||||
|
||||
|
@ -273,7 +273,7 @@ pub fn generator_trait_ref_and_outputs<'tcx>(
|
|||
sig: ty::PolyGenSig<'tcx>,
|
||||
) -> ty::Binder<'tcx, (ty::TraitRef<'tcx>, Ty<'tcx>, Ty<'tcx>)> {
|
||||
assert!(!self_ty.has_escaping_bound_vars());
|
||||
let trait_ref = tcx.mk_trait_ref(fn_trait_def_id, [self_ty, sig.skip_binder().resume_ty]);
|
||||
let trait_ref = ty::TraitRef::new(tcx, fn_trait_def_id, [self_ty, sig.skip_binder().resume_ty]);
|
||||
sig.map_bound(|sig| (trait_ref, sig.yield_ty, sig.return_ty))
|
||||
}
|
||||
|
||||
|
@ -284,7 +284,7 @@ pub fn future_trait_ref_and_outputs<'tcx>(
|
|||
sig: ty::PolyGenSig<'tcx>,
|
||||
) -> ty::Binder<'tcx, (ty::TraitRef<'tcx>, Ty<'tcx>)> {
|
||||
assert!(!self_ty.has_escaping_bound_vars());
|
||||
let trait_ref = tcx.mk_trait_ref(fn_trait_def_id, [self_ty]);
|
||||
let trait_ref = ty::TraitRef::new(tcx, fn_trait_def_id, [self_ty]);
|
||||
sig.map_bound(|sig| (trait_ref, sig.return_ty))
|
||||
}
|
||||
|
||||
|
|
|
@ -359,7 +359,7 @@ pub(crate) fn vtable_trait_upcasting_coercion_new_vptr_slot<'tcx>(
|
|||
// this has been typecked-before, so diagnostics is not really needed.
|
||||
let unsize_trait_did = tcx.require_lang_item(LangItem::Unsize, None);
|
||||
|
||||
let trait_ref = tcx.mk_trait_ref(unsize_trait_did, [source, target]);
|
||||
let trait_ref = ty::TraitRef::new(tcx, unsize_trait_did, [source, target]);
|
||||
|
||||
match tcx.codegen_select_candidate((ty::ParamEnv::reveal_all(), ty::Binder::dummy(trait_ref))) {
|
||||
Ok(ImplSource::TraitUpcasting(implsrc_traitcasting)) => {
|
||||
|
|
|
@ -448,7 +448,8 @@ impl<'tcx> WfPredicates<'tcx> {
|
|||
fn require_sized(&mut self, subty: Ty<'tcx>, cause: traits::ObligationCauseCode<'tcx>) {
|
||||
if !subty.has_escaping_bound_vars() {
|
||||
let cause = self.cause(cause);
|
||||
let trait_ref = self.tcx.at(cause.span).mk_trait_ref(LangItem::Sized, [subty]);
|
||||
let trait_ref =
|
||||
ty::TraitRef::from_lang_item(self.tcx.at(cause.span), LangItem::Sized, [subty]);
|
||||
self.out.push(traits::Obligation::with_depth(
|
||||
self.tcx,
|
||||
cause,
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue