Add tests covering unsafe blocks, more attempts to get call expr tests passing

crates/ra_hir_ty/src/expr.rs

@@ -329,13 +329,28 @@ pub fn unsafe_expressions(
         match expr {
             Expr::Call { callee, .. } => {
                 if infer
-                    .method_resolution(*callee)
+                    .method_resolution(/* id */ *callee)
                     .map(|func| db.function_data(func).is_unsafe)
                     .unwrap_or(false)
                 {
                     unsafe_expr_ids.push(id);
                 }
             }
+            Expr::MethodCall {/*_receiver, method_name,*/ .. } => {
+                // let receiver_ty = &infer.type_of_expr[*receiver];
+                // receiver_ty
+                if infer
+                    .method_resolution(id)
+                    .map(|func| {
+                        db.function_data(func).is_unsafe
+                    })
+                    .unwrap_or_else(|| {
+                        false
+                    })
+                {
+                    unsafe_expr_ids.push(id);
+                }
+            }
             Expr::UnaryOp { expr, op: UnaryOp::Deref } => {
                 if let Ty::Apply(ApplicationTy { ctor: TypeCtor::RawPtr(..), .. }) = &infer[*expr] {
                     unsafe_expr_ids.push(id);

crates/ra_hir_ty/src/tests.rs

@@ -602,6 +602,76 @@ fn missing_unsafe() {
     assert_snapshot!(diagnostics, @r#""fn missing_unsafe() {\n    HasUnsafe.unsafe_fn();\n}": Missing unsafe keyword on fn"#);
 }
 
+#[test]
+fn no_missing_unsafe_diagnostic_with_raw_ptr_in_unsafe_block() {
+    let diagnostics = TestDB::with_files(
+        r"
+//- /lib.rs
+fn nothing_to_see_move_along() {
+    unsafe {
+        let x = &5 as *usize;
+        let y = *x;
+    }
+}
+",
+    )
+    .diagnostics()
+    .0;
+
+    assert_snapshot!(diagnostics, @"");
+}
+
+#[test]
+fn no_missing_unsafe_diagnostic_with_unsafe_call_in_unsafe_block() {
+    let diagnostics = TestDB::with_files(
+        r"
+//- /lib.rs
+unsafe fn unsafe_fn() {
+    let x = &5 as *usize;
+    let y = *x;
+}
+
+fn nothing_to_see_move_along() {
+    unsafe {
+        unsafe_fn();
+    }
+}
+",
+    )
+    .diagnostics()
+    .0;
+
+    assert_snapshot!(diagnostics, @"");
+}
+
+#[test]
+fn no_missing_unsafe_diagnostic_with_unsafe_method_call_in_unsafe_block() {
+    let diagnostics = TestDB::with_files(
+        r"
+//- /lib.rs
+struct HasUnsafe;
+
+impl HasUnsafe {
+    unsafe fn unsafe_fn() {
+        let x = &5 as *usize;
+        let y = *x;
+    }
+}
+
+fn nothing_to_see_move_along() {
+    unsafe {
+        HasUnsafe.unsafe_fn();
+    }
+}
+
+",
+    )
+    .diagnostics()
+    .0;
+
+    assert_snapshot!(diagnostics, @"");
+}
+
 #[test]
 fn unnecessary_unsafe_diagnostic() {
     let diagnostics = TestDB::with_files(