chore: update next-solver to 0.166

Author: ada4a

Cargo.lock

@@ -86,14 +86,14 @@ vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" }
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 edition = { path = "./crates/edition", version = "0.0.0" }
 
-ra-ap-rustc_lexer = { version = "0.165", default-features = false }
-ra-ap-rustc_parse_format = { version = "0.165", default-features = false }
-ra-ap-rustc_index = { version = "0.165", default-features = false }
-ra-ap-rustc_abi = { version = "0.165", default-features = false }
-ra-ap-rustc_pattern_analysis = { version = "0.165", default-features = false }
-ra-ap-rustc_ast_ir = { version = "0.165", default-features = false }
-ra-ap-rustc_type_ir = { version = "0.165", default-features = false }
-ra-ap-rustc_next_trait_solver = { version = "0.165", default-features = false }
+ra-ap-rustc_lexer = { version = "0.166", default-features = false }
+ra-ap-rustc_parse_format = { version = "0.166", default-features = false }
+ra-ap-rustc_index = { version = "0.166", default-features = false }
+ra-ap-rustc_abi = { version = "0.166", default-features = false }
+ra-ap-rustc_pattern_analysis = { version = "0.166", default-features = false }
+ra-ap-rustc_ast_ir = { version = "0.166", default-features = false }
+ra-ap-rustc_type_ir = { version = "0.166", default-features = false }
+ra-ap-rustc_next_trait_solver = { version = "0.166", default-features = false }
 
 # local crates that aren't published to crates.io. These should not have versions.
 

Cargo.toml

@@ -31,7 +31,7 @@ use hir_def::{
 };
 use rustc_hash::{FxHashMap, FxHashSet};
 use rustc_type_ir::{
-    TypeVisitableExt,
+    TypeVisitableExt, VisitorResult,
     fast_reject::{TreatParams, simplify_type},
     inherent::{BoundExistentialPredicates, IntoKind},
 };
@@ -54,6 +54,7 @@ use crate::{
         obligation_ctxt::ObligationCtxt,
         util::clauses_as_obligations,
     },
+    ret,
     traits::ParamEnvAndCrate,
 };
 
@@ -835,27 +836,34 @@ impl<'db> TraitImpls<'db> {
         }
     }
 
-    pub fn for_each_crate_and_block(
+    pub fn for_each_crate_and_block<R: VisitorResult>(
         db: &'db dyn HirDatabase,
         krate: Crate,
         block: Option<BlockIdLt<'db>>,
-        for_each: &mut dyn FnMut(&TraitImpls<'db>),
-    ) {
+        for_each: &mut dyn FnMut(&TraitImpls<'db>) -> R,
+    ) -> R {
         let blocks = std::iter::successors(block, |block| block.module(db).block(db));
-        blocks.filter_map(|block| Self::for_block(db, block)).for_each(&mut *for_each);
-        Self::for_crate_and_deps(db, krate).iter().map(|it| &**it).for_each(for_each);
+        for impl_ in blocks.filter_map(|block| Self::for_block(db, block)) {
+            ret!(for_each(impl_));
+        }
+        for impl_ in Self::for_crate_and_deps(db, krate) {
+            ret!(for_each(impl_));
+        }
+        R::output()
     }
 
     /// Like [`Self::for_each_crate_and_block()`], but takes in account two blocks, one for a trait and one for a self type.
-    pub fn for_each_crate_and_block_trait_and_type(
+    pub fn for_each_crate_and_block_trait_and_type<R: VisitorResult>(
         db: &'db dyn HirDatabase,
         krate: Crate,
         type_block: Option<BlockIdLt<'db>>,
         trait_block: Option<BlockIdLt<'db>>,
-        for_each: &mut dyn FnMut(&TraitImpls<'db>),
-    ) {
+        for_each: &mut dyn FnMut(&TraitImpls<'db>) -> R,
+    ) -> R {
         let in_self_and_deps = TraitImpls::for_crate_and_deps(db, krate);
-        in_self_and_deps.iter().for_each(|impls| for_each(impls));
+        for impl_ in in_self_and_deps {
+            ret!(for_each(impl_));
+        }
 
         // We must not provide duplicate impls to the solver. Therefore we work with the following strategy:
         // start from each block, and walk ancestors until you meet the other block. If they never meet,
@@ -874,13 +882,20 @@ impl<'db> TraitImpls<'db> {
                 .filter_map(move |block| TraitImpls::for_block(db, block))
         };
         if trait_block == type_block {
-            blocks_iter(trait_block)
-                .filter_map(|block| TraitImpls::for_block(db, block))
-                .for_each(for_each);
+            for impl_ in
+                blocks_iter(trait_block).filter_map(|block| TraitImpls::for_block(db, block))
+            {
+                ret!(for_each(impl_));
+            }
         } else {
-            for_each_block(trait_block, type_block).for_each(&mut *for_each);
-            for_each_block(type_block, trait_block).for_each(for_each);
+            for impl_ in for_each_block(trait_block, type_block) {
+                ret!(for_each(impl_));
+            }
+            for impl_ in for_each_block(type_block, trait_block) {
+                ret!(for_each(impl_));
+            }
         }
+        R::output()
     }
 }
 

crates/hir-ty/src/method_resolution.rs

@@ -29,7 +29,7 @@ use rustc_index::bit_set::DenseBitSet;
 use rustc_type_ir::{
     AliasTy, BoundVar, CoroutineWitnessTypes, DebruijnIndex, EarlyBinder, FlagComputation, Flags,
     FnSigKind, GenericArgKind, GenericTypeVisitable, ImplPolarity, InferTy, Interner, TraitRef,
-    TypeFlags, TypeVisitableExt, Upcast, Variance,
+    TypeFlags, TypeVisitableExt, Upcast, Variance, VisitorResult,
     elaborate::elaborate,
     error::TypeError,
     fast_reject,
@@ -54,6 +54,7 @@ use crate::{
         TraitAssocTyId, TraitIdWrapper, TypeAliasIdWrapper, UnevaluatedConst, Unnormalized,
         util::{explicit_item_bounds, explicit_item_self_bounds},
     },
+    ret,
 };
 
 use super::{
@@ -1601,12 +1602,12 @@ impl<'db> Interner for DbInterner<'db> {
         def_id.0.trait_items(self.db()).associated_types().map(|id| id.into())
     }
 
-    fn for_each_relevant_impl(
+    fn for_each_relevant_impl<R: VisitorResult>(
         self,
         trait_def_id: Self::TraitId,
         self_ty: Self::Ty,
-        mut f: impl FnMut(Self::ImplId),
-    ) {
+        mut f: impl FnMut(Self::ImplId) -> R,
+    ) -> R {
         let krate = self.krate.expect("trait solving requires setting `DbInterner::krate`");
         let trait_block = trait_def_id.0.loc(self.db).container.block(self.db);
         let mut consider_impls_for_simplified_type = |simp: SimplifiedType<'_>| {
@@ -1641,13 +1642,14 @@ impl<'db> Interner for DbInterner<'db> {
                     let (regular_impls, builtin_derive_impls) =
                         impls.for_trait_and_self_ty(trait_def_id.0, &simp);
                     for &impl_ in regular_impls {
-                        f(impl_.into());
+                        ret!(f(impl_.into()));
                     }
                     for &impl_ in builtin_derive_impls {
-                        f(impl_.into());
+                        ret!(f(impl_.into()));
                     }
+                    R::output()
                 },
-            );
+            )
         };
 
         match self_ty.kind() {
@@ -1676,7 +1678,7 @@ impl<'db> Interner for DbInterner<'db> {
                 let simp =
                     fast_reject::simplify_type(self, self_ty, fast_reject::TreatParams::AsRigid)
                         .unwrap();
-                consider_impls_for_simplified_type(simp);
+                ret!(consider_impls_for_simplified_type(simp));
             }
 
             // HACK: For integer and float variables we have to manually look at all impls
@@ -1704,7 +1706,7 @@ impl<'db> Interner for DbInterner<'db> {
                     SimplifiedType::Uint(Usize),
                 ];
                 for simp in possible_integers {
-                    consider_impls_for_simplified_type(simp);
+                    ret!(consider_impls_for_simplified_type(simp));
                 }
             }
 
@@ -1719,7 +1721,7 @@ impl<'db> Interner for DbInterner<'db> {
                 ];
 
                 for simp in possible_floats {
-                    consider_impls_for_simplified_type(simp);
+                    ret!(consider_impls_for_simplified_type(simp));
                 }
             }
 
@@ -1748,15 +1750,22 @@ impl<'db> Interner for DbInterner<'db> {
         self.for_each_blanket_impl(trait_def_id, f)
     }
 
-    fn for_each_blanket_impl(self, trait_def_id: Self::TraitId, mut f: impl FnMut(Self::ImplId)) {
-        let Some(krate) = self.krate else { return };
+    fn for_each_blanket_impl<R: VisitorResult>(
+        self,
+        trait_def_id: Self::TraitId,
+        mut f: impl FnMut(Self::ImplId) -> R,
+    ) -> R {
+        let Some(krate) = self.krate else {
+            return R::output();
+        };
         let block = trait_def_id.0.loc(self.db).container.block(self.db);
 
         TraitImpls::for_each_crate_and_block(self.db, krate, block, &mut |impls| {
             for &impl_ in impls.blanket_impls(trait_def_id.0) {
-                f(impl_.into());
+                ret!(f(impl_.into()));
             }
-        });
+            R::output()
+        })
     }
 
     fn has_item_definition(self, _def_id: Self::ImplOrTraitAssocTermId) -> bool {

crates/hir-ty/src/next_solver/interner.rs

@@ -723,3 +723,15 @@ pub(crate) fn clauses_as_obligations<'db>(
         recursion_depth: 0,
     })
 }
+
+/// Copied from
+/// <https://github.com/jdonszelmann/rust/blob/180725cff61d00dd1b9c35fc720a8befaec5d46b/compiler/rustc_middle/src/ty/context/impl_interner.rs#L534-L541>
+#[macro_export]
+macro_rules! ret {
+    ($e: expr) => {
+        match $e.branch() {
+            ::std::ops::ControlFlow::Break(b) => return R::from_residual(b),
+            ::std::ops::ControlFlow::Continue(()) => {}
+        }
+    };
+}