Major fixes and new features

venv/lib/python3.12/site-packages/mypyc/test/test_alwaysdefined.py

@@ -0,0 +1,46 @@
+"""Test cases for inferring always defined attributes in classes."""
+
+from __future__ import annotations
+
+import os.path
+
+from mypy.errors import CompileError
+from mypy.test.config import test_temp_dir
+from mypy.test.data import DataDrivenTestCase
+from mypyc.test.testutil import (
+    ICODE_GEN_BUILTINS,
+    MypycDataSuite,
+    assert_test_output,
+    build_ir_for_single_file2,
+    infer_ir_build_options_from_test_name,
+    use_custom_builtins,
+)
+
+files = ["alwaysdefined.test"]
+
+
+class TestAlwaysDefined(MypycDataSuite):
+    files = files
+    base_path = test_temp_dir
+
+    def run_case(self, testcase: DataDrivenTestCase) -> None:
+        """Perform a runtime checking transformation test case."""
+        options = infer_ir_build_options_from_test_name(testcase.name)
+        if options is None:
+            # Skipped test case
+            return
+        with use_custom_builtins(os.path.join(self.data_prefix, ICODE_GEN_BUILTINS), testcase):
+            try:
+                ir = build_ir_for_single_file2(testcase.input, options)
+            except CompileError as e:
+                actual = e.messages
+            else:
+                actual = []
+                for cl in ir.classes:
+                    if cl.name.startswith("_"):
+                        continue
+                    actual.append(
+                        "{}: [{}]".format(cl.name, ", ".join(sorted(cl._always_initialized_attrs)))
+                    )
+
+            assert_test_output(testcase, actual, "Invalid test output", testcase.output)