bjoernager/rust
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Rename tcx to cx

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This commit is contained in:
Michael Goulet 2024-06-21 12:39:55 -04:00
parent c290e9de32
commit 275d922dab
13 changed files with 333 additions and 347 deletions
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85
compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs
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@ -36,11 +36,11 @@ where
{
fn self_ty(self) -> I::Ty;
fn trait_ref(self, tcx: I) -> ty::TraitRef<I>;
fn trait_ref(self, cx: I) -> ty::TraitRef<I>;
fn with_self_ty(self, tcx: I, self_ty: I::Ty) -> Self;
fn with_self_ty(self, cx: I, self_ty: I::Ty) -> Self;
fn trait_def_id(self, tcx: I) -> I::DefId;
fn trait_def_id(self, cx: I) -> I::DefId;
/// Try equating an assumption predicate against a goal's predicate. If it
/// holds, then execute the `then` callback, which should do any additional
@ -82,7 +82,7 @@ where
assumption: I::Clause,
) -> Result<Candidate<I>, NoSolution> {
Self::probe_and_match_goal_against_assumption(ecx, source, goal, assumption, |ecx| {
let tcx = ecx.cx();
let cx = ecx.cx();
let ty::Dynamic(bounds, _, _) = goal.predicate.self_ty().kind() else {
panic!("expected object type in `probe_and_consider_object_bound_candidate`");
};
@ -91,7 +91,7 @@ where
structural_traits::predicates_for_object_candidate(
ecx,
goal.param_env,
goal.predicate.trait_ref(tcx),
goal.predicate.trait_ref(cx),
bounds,
),
);
@ -340,15 +340,15 @@ where
goal: Goal<I, G>,
candidates: &mut Vec<Candidate<I>>,
) {
let tcx = self.cx();
tcx.for_each_relevant_impl(
goal.predicate.trait_def_id(tcx),
let cx = self.cx();
cx.for_each_relevant_impl(
goal.predicate.trait_def_id(cx),
goal.predicate.self_ty(),
|impl_def_id| {
// For every `default impl`, there's always a non-default `impl`
// that will *also* apply. There's no reason to register a candidate
// for this impl, since it is *not* proof that the trait goal holds.
if tcx.impl_is_default(impl_def_id) {
if cx.impl_is_default(impl_def_id) {
return;
}
@ -366,8 +366,8 @@ where
goal: Goal<I, G>,
candidates: &mut Vec<Candidate<I>>,
) {
let tcx = self.cx();
let trait_def_id = goal.predicate.trait_def_id(tcx);
let cx = self.cx();
let trait_def_id = goal.predicate.trait_def_id(cx);
// N.B. When assembling built-in candidates for lang items that are also
// `auto` traits, then the auto trait candidate that is assembled in
@ -378,47 +378,47 @@ where
// `solve::trait_goals` instead.
let result = if let Err(guar) = goal.predicate.error_reported() {
G::consider_error_guaranteed_candidate(self, guar)
} else if tcx.trait_is_auto(trait_def_id) {
} else if cx.trait_is_auto(trait_def_id) {
G::consider_auto_trait_candidate(self, goal)
} else if tcx.trait_is_alias(trait_def_id) {
} else if cx.trait_is_alias(trait_def_id) {
G::consider_trait_alias_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Sized) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Sized) {
G::consider_builtin_sized_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Copy)
|| tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Clone)
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Copy)
|| cx.is_lang_item(trait_def_id, TraitSolverLangItem::Clone)
{
G::consider_builtin_copy_clone_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::PointerLike) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::PointerLike) {
G::consider_builtin_pointer_like_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::FnPtrTrait) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::FnPtrTrait) {
G::consider_builtin_fn_ptr_trait_candidate(self, goal)
} else if let Some(kind) = self.cx().fn_trait_kind_from_def_id(trait_def_id) {
G::consider_builtin_fn_trait_candidates(self, goal, kind)
} else if let Some(kind) = self.cx().async_fn_trait_kind_from_def_id(trait_def_id) {
G::consider_builtin_async_fn_trait_candidates(self, goal, kind)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncFnKindHelper) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncFnKindHelper) {
G::consider_builtin_async_fn_kind_helper_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Tuple) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Tuple) {
G::consider_builtin_tuple_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::PointeeTrait) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::PointeeTrait) {
G::consider_builtin_pointee_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Future) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Future) {
G::consider_builtin_future_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Iterator) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Iterator) {
G::consider_builtin_iterator_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::FusedIterator) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::FusedIterator) {
G::consider_builtin_fused_iterator_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncIterator) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncIterator) {
G::consider_builtin_async_iterator_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Coroutine) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Coroutine) {
G::consider_builtin_coroutine_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::DiscriminantKind) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::DiscriminantKind) {
G::consider_builtin_discriminant_kind_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncDestruct) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::AsyncDestruct) {
G::consider_builtin_async_destruct_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Destruct) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Destruct) {
G::consider_builtin_destruct_candidate(self, goal)
} else if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::TransmuteTrait) {
} else if cx.is_lang_item(trait_def_id, TraitSolverLangItem::TransmuteTrait) {
G::consider_builtin_transmute_candidate(self, goal)
} else {
Err(NoSolution)
@ -428,7 +428,7 @@ where
// There may be multiple unsize candidates for a trait with several supertraits:
// `trait Foo: Bar<A> + Bar<B>` and `dyn Foo: Unsize<dyn Bar<_>>`
if tcx.is_lang_item(trait_def_id, TraitSolverLangItem::Unsize) {
if cx.is_lang_item(trait_def_id, TraitSolverLangItem::Unsize) {
candidates.extend(G::consider_structural_builtin_unsize_candidates(self, goal));
}
}
@ -557,8 +557,8 @@ where
goal: Goal<I, G>,
candidates: &mut Vec<Candidate<I>>,
) {
let tcx = self.cx();
if !tcx.trait_may_be_implemented_via_object(goal.predicate.trait_def_id(tcx)) {
let cx = self.cx();
if !cx.trait_may_be_implemented_via_object(goal.predicate.trait_def_id(cx)) {
return;
}
@ -596,7 +596,7 @@ where
};
// Do not consider built-in object impls for non-object-safe types.
if bounds.principal_def_id().is_some_and(|def_id| !tcx.trait_is_object_safe(def_id)) {
if bounds.principal_def_id().is_some_and(|def_id| !cx.trait_is_object_safe(def_id)) {
return;
}
@ -614,7 +614,7 @@ where
self,
CandidateSource::BuiltinImpl(BuiltinImplSource::Misc),
goal,
bound.with_self_ty(tcx, self_ty),
bound.with_self_ty(cx, self_ty),
));
}
}
@ -624,14 +624,13 @@ where
// since we don't need to look at any supertrait or anything if we are doing
// a projection goal.
if let Some(principal) = bounds.principal() {
let principal_trait_ref = principal.with_self_ty(tcx, self_ty);
for (idx, assumption) in D::elaborate_supertraits(tcx, principal_trait_ref).enumerate()
{
let principal_trait_ref = principal.with_self_ty(cx, self_ty);
for (idx, assumption) in D::elaborate_supertraits(cx, principal_trait_ref).enumerate() {
candidates.extend(G::probe_and_consider_object_bound_candidate(
self,
CandidateSource::BuiltinImpl(BuiltinImplSource::Object(idx)),
goal,
assumption.upcast(tcx),
assumption.upcast(cx),
));
}
}
@ -649,11 +648,11 @@ where
goal: Goal<I, G>,
candidates: &mut Vec<Candidate<I>>,
) {
let tcx = self.cx();
let cx = self.cx();
candidates.extend(self.probe_trait_candidate(CandidateSource::CoherenceUnknowable).enter(
|ecx| {
let trait_ref = goal.predicate.trait_ref(tcx);
let trait_ref = goal.predicate.trait_ref(cx);
if ecx.trait_ref_is_knowable(goal.param_env, trait_ref)? {
Err(NoSolution)
} else {
@ -678,9 +677,9 @@ where
goal: Goal<I, G>,
candidates: &mut Vec<Candidate<I>>,
) {
let tcx = self.cx();
let cx = self.cx();
let trait_goal: Goal<I, ty::TraitPredicate<I>> =
goal.with(tcx, goal.predicate.trait_ref(tcx));
goal.with(cx, goal.predicate.trait_ref(cx));
let mut trait_candidates_from_env = vec![];
self.probe(|_| ProbeKind::ShadowedEnvProbing).enter(|ecx| {