6 files changed, 36 insertions, 9 deletions

diff --git a/crates/hir_ty/Cargo.toml b/crates/hir_ty/Cargo.toml
index 98434b741..db42a00dc 100644
--- a/crates/hir_ty/Cargo.toml
+++ b/crates/hir_ty/Cargo.toml
@@ -17,9 +17,9 @@ ena = "0.14.0"
 log = "0.4.8"
 rustc-hash = "1.1.0"
 scoped-tls = "1"
-chalk-solve = { version = "0.47", default-features = false }
-chalk-ir = "0.47"
-chalk-recursive = "0.47"
+chalk-solve = { version = "0.50", default-features = false }
+chalk-ir = "0.50"
+chalk-recursive = "0.50"
 la-arena = { version = "0.2.0", path = "../../lib/arena" }
 
 stdx = { path = "../stdx", version = "0.0.0" }
diff --git a/crates/hir_ty/src/diagnostics.rs b/crates/hir_ty/src/diagnostics.rs
index c67a289f2..247da43f2 100644
--- a/crates/hir_ty/src/diagnostics.rs
+++ b/crates/hir_ty/src/diagnostics.rs
@@ -409,7 +409,7 @@ mod tests {
                 let crate_def_map = self.crate_def_map(krate);
 
                 let mut fns = Vec::new();
-                for (module_id, _) in crate_def_map.modules.iter() {
+                for (module_id, _) in crate_def_map.modules() {
                     for decl in crate_def_map[module_id].scope.declarations() {
                         let mut sink = DiagnosticSinkBuilder::new().build(&mut cb);
                         validate_module_item(self, krate, decl, &mut sink);
diff --git a/crates/hir_ty/src/infer/expr.rs b/crates/hir_ty/src/infer/expr.rs
index 9bf3b51b0..d7351d212 100644
--- a/crates/hir_ty/src/infer/expr.rs
+++ b/crates/hir_ty/src/infer/expr.rs
@@ -491,7 +491,10 @@ impl<'a> InferenceContext<'a> {
             Expr::Box { expr } => {
                 let inner_ty = self.infer_expr_inner(*expr, &Expectation::none());
                 if let Some(box_) = self.resolve_boxed_box() {
-                    Ty::apply_one(TypeCtor::Adt(box_), inner_ty)
+                    let mut sb = Substs::build_for_type_ctor(self.db, TypeCtor::Adt(box_));
+                    sb = sb.push(inner_ty);
+                    sb = sb.fill(repeat_with(|| self.table.new_type_var()));
+                    Ty::apply(TypeCtor::Adt(box_), sb.build())
                 } else {
                     Ty::Unknown
                 }
diff --git a/crates/hir_ty/src/method_resolution.rs b/crates/hir_ty/src/method_resolution.rs
index 8a289f52a..f06aeeb42 100644
--- a/crates/hir_ty/src/method_resolution.rs
+++ b/crates/hir_ty/src/method_resolution.rs
@@ -112,7 +112,7 @@ impl TraitImpls {
         let mut impls = Self { map: FxHashMap::default() };
 
         let crate_def_map = db.crate_def_map(krate);
-        for (_module_id, module_data) in crate_def_map.modules.iter() {
+        for (_module_id, module_data) in crate_def_map.modules() {
             for impl_id in module_data.scope.impls() {
                 let target_trait = match db.impl_trait(impl_id) {
                     Some(tr) => tr.value.trait_,
@@ -198,7 +198,7 @@ impl InherentImpls {
         let mut map: FxHashMap<_, Vec<_>> = FxHashMap::default();
 
         let crate_def_map = db.crate_def_map(krate);
-        for (_module_id, module_data) in crate_def_map.modules.iter() {
+        for (_module_id, module_data) in crate_def_map.modules() {
             for impl_id in module_data.scope.impls() {
                 let data = db.impl_data(impl_id);
                 if data.target_trait.is_some() {
diff --git a/crates/hir_ty/src/test_db.rs b/crates/hir_ty/src/test_db.rs
index 646e16bbe..3bbcbc242 100644
--- a/crates/hir_ty/src/test_db.rs
+++ b/crates/hir_ty/src/test_db.rs
@@ -81,7 +81,7 @@ impl TestDB {
     pub(crate) fn module_for_file(&self, file_id: FileId) -> ModuleId {
         for &krate in self.relevant_crates(file_id).iter() {
             let crate_def_map = self.crate_def_map(krate);
-            for (local_id, data) in crate_def_map.modules.iter() {
+            for (local_id, data) in crate_def_map.modules() {
                 if data.origin.file_id() == Some(file_id) {
                     return ModuleId { krate, local_id };
                 }
@@ -95,7 +95,7 @@ impl TestDB {
         let crate_graph = self.crate_graph();
         for krate in crate_graph.iter() {
             let crate_def_map = self.crate_def_map(krate);
-            for (module_id, _) in crate_def_map.modules.iter() {
+            for (module_id, _) in crate_def_map.modules() {
                 let file_id = crate_def_map[module_id].origin.file_id();
                 files.extend(file_id)
             }
diff --git a/crates/hir_ty/src/tests/simple.rs b/crates/hir_ty/src/tests/simple.rs
index 8d431b920..16682f76f 100644
--- a/crates/hir_ty/src/tests/simple.rs
+++ b/crates/hir_ty/src/tests/simple.rs
@@ -29,6 +29,30 @@ mod boxed {
 }
 
 #[test]
+fn infer_box_with_allocator() {
+    check_types(
+        r#"
+//- /main.rs crate:main deps:std
+fn test() {
+    let x = box 1;
+    let t = (x, box x, box &1, box [1]);
+    t;
+} //^ (Box<i32, {unknown}>, Box<Box<i32, {unknown}>, {unknown}>, Box<&i32, {unknown}>, Box<[i32; _], {unknown}>)
+
+//- /std.rs crate:std
+#[prelude_import] use prelude::*;
+mod boxed {
+    #[lang = "owned_box"]
+    pub struct Box<T: ?Sized, A: Allocator> {
+        inner: *mut T,
+        allocator: A,
+    }
+}
+"#,
+    );
+}
+
+#[test]
 fn infer_adt_self() {
     check_types(
         r#"