3 files changed, 19 insertions, 13 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 85839bf47..2c8202621 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -162,9 +162,9 @@ checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
 name = "chalk-derive"
-version = "0.27.0"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d5444ff2a211fe2a863e44d16a368c3d8a314d489de21b8eeb6879f14dd5d4a8"
+checksum = "8c85b013e2dc1b46ac4a279f54e62e55556a8c4d859f7b7c4e340a9b1d013640"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -174,9 +174,9 @@ dependencies = [
 
 [[package]]
 name = "chalk-ir"
-version = "0.27.0"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e39c3db1dd4abfaa7658faaa62e5fe998a982a592b710bd971fad5b6adfcfdef"
+checksum = "2135d844688dc920e3ece3012c5d3d4f06e26986fe38bc041bc98f0e7a9f4e2b"
 dependencies = [
  "chalk-derive",
  "lazy_static",
@@ -184,9 +184,9 @@ dependencies = [
 
 [[package]]
 name = "chalk-recursive"
-version = "0.27.0"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bfae328eff80ca54dcd0d731725bbb56136ac21c59261b68f1e5498e056b306"
+checksum = "cffdc1af3a413b7dd1e776cf81a863148b17e3c3f90f70d1fd216a68f816a622"
 dependencies = [
  "chalk-derive",
  "chalk-ir",
@@ -197,9 +197,9 @@ dependencies = [
 
 [[package]]
 name = "chalk-solve"
-version = "0.27.0"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a673abe3077adc25f8ee0894198aed494a5bb0ce50ee993900d0ee1a44e1948a"
+checksum = "bc69e4e94ffd4b39f1a865824b431bb82a7b4c8f14a0ba3d461cd86e56a590ac"
 dependencies = [
  "chalk-derive",
  "chalk-ir",
diff --git a/crates/hir_ty/Cargo.toml b/crates/hir_ty/Cargo.toml
index bc86df2b1..03215be44 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 = "0.27.0" }
-chalk-ir = { version = "0.27.0" }
-chalk-recursive = { version = "0.27.0" }
+chalk-solve = { version = "0.28.0" }
+chalk-ir = { version = "0.28.0" }
+chalk-recursive = { version = "0.28.0" }
 
 stdx = { path = "../stdx", version = "0.0.0" }
 hir_def = { path = "../hir_def", version = "0.0.0" }
diff --git a/crates/hir_ty/src/traits/chalk.rs b/crates/hir_ty/src/traits/chalk.rs
index 27f0ed628..009b17a7f 100644
--- a/crates/hir_ty/src/traits/chalk.rs
+++ b/crates/hir_ty/src/traits/chalk.rs
@@ -129,8 +129,12 @@ impl<'a> chalk_solve::RustIrDatabase<Interner> for ChalkContext<'a> {
         debug!("impls_for_trait returned {} impls", result.len());
         result
     }
-    fn impl_provided_for(&self, auto_trait_id: TraitId, struct_id: AdtId) -> bool {
-        debug!("impl_provided_for {:?}, {:?}", auto_trait_id, struct_id);
+    fn impl_provided_for(
+        &self,
+        auto_trait_id: TraitId,
+        application_ty: &chalk_ir::ApplicationTy<Interner>,
+    ) -> bool {
+        debug!("impl_provided_for {:?}, {:?}", auto_trait_id, application_ty);
         false // FIXME
     }
     fn associated_ty_value(&self, id: AssociatedTyValueId) -> Arc<AssociatedTyValue> {
@@ -422,6 +426,7 @@ fn well_known_trait_from_lang_attr(name: &str) -> Option<WellKnownTrait> {
         "fn_mut" => WellKnownTrait::FnMut,
         "fn" => WellKnownTrait::Fn,
         "unsize" => WellKnownTrait::Unsize,
+        "coerce_unsized" => WellKnownTrait::CoerceUnsized,
         _ => return None,
     })
 }
@@ -437,6 +442,7 @@ fn lang_attr_from_well_known_trait(attr: WellKnownTrait) -> &'static str {
         WellKnownTrait::Fn => "fn",
         WellKnownTrait::Unsize => "unsize",
         WellKnownTrait::Unpin => "unpin",
+        WellKnownTrait::CoerceUnsized => "coerce_unsized",
     }
 }