4 files changed, 154 insertions, 0 deletions

diff --git a/crates/hir_ty/src/tests/macros.rs b/crates/hir_ty/src/tests/macros.rs
index 88ba9b118..7eda51866 100644
--- a/crates/hir_ty/src/tests/macros.rs
+++ b/crates/hir_ty/src/tests/macros.rs
@@ -607,6 +607,29 @@ fn bar() -> u32 {0}
 }
 
 #[test]
+fn infer_builtin_macros_include_child_mod() {
+    check_types(
+        r#"
+//- /main.rs
+#[rustc_builtin_macro]
+macro_rules! include {() => {}}
+
+include!("f/foo.rs");
+
+fn main() {
+    bar::bar();
+}          //^ u32
+
+//- /f/foo.rs
+pub mod bar;
+
+//- /f/bar.rs
+pub fn bar() -> u32 {0}
+"#,
+    );
+}
+
+#[test]
 fn infer_builtin_macros_include_str() {
     check_types(
         r#"
diff --git a/crates/hir_ty/src/tests/patterns.rs b/crates/hir_ty/src/tests/patterns.rs
index 5da19ba5f..85a28e76b 100644
--- a/crates/hir_ty/src/tests/patterns.rs
+++ b/crates/hir_ty/src/tests/patterns.rs
@@ -658,6 +658,28 @@ fn slice_tail_pattern() {
 fn box_pattern() {
     check_infer(
         r#"
+        pub struct Global;
+        #[lang = "owned_box"]
+        pub struct Box<T, A = Global>(T);
+
+        fn foo(params: Box<i32>) {
+            match params {
+                box integer => {}
+            }
+        }
+        "#,
+        expect![[r#"
+            83..89 'params': Box<i32, Global>
+            101..155 '{     ...   } }': ()
+            107..153 'match ...     }': ()
+            113..119 'params': Box<i32, Global>
+            130..141 'box integer': Box<i32, Global>
+            134..141 'integer': i32
+            145..147 '{}': ()
+        "#]],
+    );
+    check_infer(
+        r#"
         #[lang = "owned_box"]
         pub struct Box<T>(T);
 
diff --git a/crates/hir_ty/src/tests/regression.rs b/crates/hir_ty/src/tests/regression.rs
index 69314e245..b69f86050 100644
--- a/crates/hir_ty/src/tests/regression.rs
+++ b/crates/hir_ty/src/tests/regression.rs
@@ -961,3 +961,16 @@ fn issue_6852() {
         "#]],
     );
 }
+
+#[test]
+fn param_overrides_fn() {
+    check_types(
+        r#"
+        fn example(example: i32) {
+            fn f() {}
+            example;
+          //^^^^^^^ i32
+        }
+        "#,
+    )
+}
diff --git a/crates/hir_ty/src/tests/traits.rs b/crates/hir_ty/src/tests/traits.rs
index f7ee6def6..2ba97f814 100644
--- a/crates/hir_ty/src/tests/traits.rs
+++ b/crates/hir_ty/src/tests/traits.rs
@@ -2272,6 +2272,56 @@ fn test<T, U>() where T: Trait<U::Item>, U: Trait<T::Item> {
 }
 
 #[test]
+fn unselected_projection_in_trait_env_cycle_3() {
+    // this is a cycle for rustc; we currently accept it
+    check_types(
+        r#"
+//- /main.rs
+trait Trait {
+    type Item;
+    type OtherItem;
+}
+
+fn test<T>() where T: Trait<OtherItem = T::Item> {
+    let x: T::Item = no_matter;
+}                   //^ Trait::Item<T>
+"#,
+    );
+}
+
+#[test]
+fn unselected_projection_in_trait_env_no_cycle() {
+    // this is not a cycle
+    check_types(
+        r#"
+//- /main.rs
+trait Index {
+    type Output;
+}
+
+type Key<S: UnificationStoreBase> = <S as UnificationStoreBase>::Key;
+
+pub trait UnificationStoreBase: Index<Output = Key<Self>> {
+    type Key;
+
+    fn len(&self) -> usize;
+}
+
+pub trait UnificationStoreMut: UnificationStoreBase {
+    fn push(&mut self, value: Self::Key);
+}
+
+fn test<T>(t: T) where T: UnificationStoreMut {
+    let x;
+    t.push(x);
+    let y: Key<T>;
+    (x, y);
+}      //^ (UnificationStoreBase::Key<T>, UnificationStoreBase::Key<T>)
+"#,
+    );
+}
+
+#[test]
 fn inline_assoc_type_bounds_1() {
     check_types(
         r#"
@@ -3274,3 +3324,49 @@ fn f() {
         "#]],
     )
 }
+
+#[test]
+fn infer_default_trait_type_parameter() {
+    check_infer(
+        r#"
+struct A;
+
+trait Op<RHS=Self> {
+    type Output;
+
+    fn do_op(self, rhs: RHS) -> Self::Output;
+}
+
+impl Op for A {
+    type Output = bool;
+
+    fn do_op(self, rhs: Self) -> Self::Output {
+        true
+    }
+}
+
+fn test() {
+    let x = A;
+    let y = A;
+    let r = x.do_op(y);
+}
+        "#,
+        expect![[r#"
+            63..67 'self': Self
+            69..72 'rhs': RHS
+            153..157 'self': A
+            159..162 'rhs': A
+            186..206 '{     ...     }': bool
+            196..200 'true': bool
+            220..277 '{     ...(y); }': ()
+            230..231 'x': A
+            234..235 'A': A
+            245..246 'y': A
+            249..250 'A': A
+            260..261 'r': bool
+            264..265 'x': A
+            264..274 'x.do_op(y)': bool
+            272..273 'y': A
+        "#]],
+    )
+}