From 35cc48a64c836f8ab29f4cebd1fff79901a7d018 Mon Sep 17 00:00:00 2001
From: Zanie <contact@zanie.dev>
Date: Mon, 17 Jul 2023 18:26:42 -0500
Subject: [PATCH] Add stubs for type params and type aliases

---
 crates/ruff/src/checkers/ast/mod.rs                             | 1 +
 crates/ruff/src/rules/pycodestyle/rules/lambda_assignment.rs    | 2 ++
 .../pyupgrade/rules/convert_named_tuple_functional_to_class.rs  | 1 +
 .../pyupgrade/rules/convert_typed_dict_functional_to_class.rs   | 1 +
 crates/ruff_python_formatter/src/statement/mod.rs               | 1 +
 5 files changed, 6 insertions(+)

diff --git a/crates/ruff/src/checkers/ast/mod.rs b/crates/ruff/src/checkers/ast/mod.rs
index 61f09c6950..a548758432 100644
--- a/crates/ruff/src/checkers/ast/mod.rs
+++ b/crates/ruff/src/checkers/ast/mod.rs
@@ -590,6 +590,7 @@ where
                     keywords,
                     decorator_list,
                     body,
+                    type_params: _,
                     range: _,
                 },
             ) => {
diff --git a/crates/ruff/src/rules/pycodestyle/rules/lambda_assignment.rs b/crates/ruff/src/rules/pycodestyle/rules/lambda_assignment.rs
index 8e3f4930e2..173882ee70 100644
--- a/crates/ruff/src/rules/pycodestyle/rules/lambda_assignment.rs
+++ b/crates/ruff/src/rules/pycodestyle/rules/lambda_assignment.rs
@@ -225,6 +225,7 @@ fn function(
                 decorator_list: vec![],
                 returns: Some(Box::new(return_type)),
                 type_comment: None,
+                type_params: vec![],
                 range: TextRange::default(),
             });
             return generator.stmt(&func);
@@ -237,6 +238,7 @@ fn function(
         decorator_list: vec![],
         returns: None,
         type_comment: None,
+        type_params: vec![],
         range: TextRange::default(),
     });
     generator.stmt(&func)
diff --git a/crates/ruff/src/rules/pyupgrade/rules/convert_named_tuple_functional_to_class.rs b/crates/ruff/src/rules/pyupgrade/rules/convert_named_tuple_functional_to_class.rs
index 2d59a3df80..6d5b7c1cf8 100644
--- a/crates/ruff/src/rules/pyupgrade/rules/convert_named_tuple_functional_to_class.rs
+++ b/crates/ruff/src/rules/pyupgrade/rules/convert_named_tuple_functional_to_class.rs
@@ -171,6 +171,7 @@ fn create_class_def_stmt(typename: &str, body: Vec<Stmt>, base_class: &Expr) ->
         keywords: vec![],
         body,
         decorator_list: vec![],
+        type_params: vec![],
         range: TextRange::default(),
     }
     .into()
diff --git a/crates/ruff/src/rules/pyupgrade/rules/convert_typed_dict_functional_to_class.rs b/crates/ruff/src/rules/pyupgrade/rules/convert_typed_dict_functional_to_class.rs
index afce256896..100db49856 100644
--- a/crates/ruff/src/rules/pyupgrade/rules/convert_typed_dict_functional_to_class.rs
+++ b/crates/ruff/src/rules/pyupgrade/rules/convert_typed_dict_functional_to_class.rs
@@ -128,6 +128,7 @@ fn create_class_def_stmt(
         keywords,
         body,
         decorator_list: vec![],
+        type_params: vec![],
         range: TextRange::default(),
     }
     .into()
diff --git a/crates/ruff_python_formatter/src/statement/mod.rs b/crates/ruff_python_formatter/src/statement/mod.rs
index 4d5804a847..7914ae77c2 100644
--- a/crates/ruff_python_formatter/src/statement/mod.rs
+++ b/crates/ruff_python_formatter/src/statement/mod.rs
@@ -42,6 +42,7 @@ impl FormatRule<Stmt, PyFormatContext<'_>> for FormatStmt {
             Stmt::ClassDef(x) => x.format().fmt(f),
             Stmt::Return(x) => x.format().fmt(f),
             Stmt::Delete(x) => x.format().fmt(f),
+            Stmt::TypeAlias(_) => todo!(),
             Stmt::Assign(x) => x.format().fmt(f),
             Stmt::AugAssign(x) => x.format().fmt(f),
             Stmt::AnnAssign(x) => x.format().fmt(f),