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Split super_predicates_that_define_assoc_type query from super_predicates_of

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This commit is contained in:
Michael Goulet 2023-02-02 18:50:25 +00:00
parent 45749b21b7
commit 3dab259cb9
5 changed files with 10 additions and 12 deletions
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5
compiler/rustc_hir_analysis/src/collect.rs
View file

@ -64,8 +64,9 @@ pub fn provide(providers: &mut Providers) {
predicates_defined_on,
explicit_predicates_of: predicates_of::explicit_predicates_of,
super_predicates_of: predicates_of::super_predicates_of,
super_predicates_that_define_assoc_type:
predicates_of::super_predicates_that_define_assoc_type,
super_predicates_that_define_assoc_type: |tcx, (def_id, assoc_name)| {
predicates_of::super_predicates_that_define_assoc_type(tcx, (def_id, Some(assoc_name)))
},
trait_explicit_predicates_and_bounds: predicates_of::trait_explicit_predicates_and_bounds,
type_param_predicates: predicates_of::type_param_predicates,
trait_def,

3
compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs
View file

@ -1749,8 +1749,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> {
if trait_defines_associated_type_named(def_id) {
break Some(bound_vars.into_iter().collect());
}
let predicates =
tcx.super_predicates_that_define_assoc_type((def_id, Some(assoc_name)));
let predicates = tcx.super_predicates_that_define_assoc_type((def_id, assoc_name));
let obligations = predicates.predicates.iter().filter_map(|&(pred, _)| {
let bound_predicate = pred.kind();
match bound_predicate.skip_binder() {

6
compiler/rustc_infer/src/traits/util.rs
View file

@ -381,10 +381,8 @@ pub fn transitive_bounds_that_define_assoc_type<'tcx>(
while let Some(trait_ref) = stack.pop() {
let anon_trait_ref = tcx.anonymize_bound_vars(trait_ref);
if visited.insert(anon_trait_ref) {
let super_predicates = tcx.super_predicates_that_define_assoc_type((
trait_ref.def_id(),
Some(assoc_name),
));
let super_predicates =
tcx.super_predicates_that_define_assoc_type((trait_ref.def_id(), assoc_name));
for (super_predicate, _) in super_predicates.predicates {
let subst_predicate = super_predicate.subst_supertrait(tcx, &trait_ref);
if let Some(binder) = subst_predicate.to_opt_poly_trait_pred() {

2
compiler/rustc_middle/src/query/keys.rs
View file

@ -230,7 +230,7 @@ impl Key for (LocalDefId, LocalDefId) {
}
}
impl Key for (DefId, Option<Ident>) {
impl Key for (DefId, Ident) {
type CacheSelector = DefaultCacheSelector<Self>;
fn default_span(&self, tcx: TyCtxt<'_>) -> Span {

6
compiler/rustc_middle/src/query/mod.rs
View file

@ -631,10 +631,10 @@ rustc_queries! {
/// returns the full set of predicates. If `Some<Ident>`, then the query returns only the
/// subset of super-predicates that reference traits that define the given associated type.
/// This is used to avoid cycles in resolving types like `T::Item`.
query super_predicates_that_define_assoc_type(key: (DefId, Option<rustc_span::symbol::Ident>)) -> ty::GenericPredicates<'tcx> {
desc { |tcx| "computing the super traits of `{}`{}",
query super_predicates_that_define_assoc_type(key: (DefId, rustc_span::symbol::Ident)) -> ty::GenericPredicates<'tcx> {
desc { |tcx| "computing the super traits of `{}` with associated type name `{}`",
tcx.def_path_str(key.0),
if let Some(assoc_name) = key.1 { format!(" with associated type name `{}`", assoc_name) } else { "".to_string() },
key.1
}
}