wip

Author: hauntsaninja

mypy/metastore.py

@@ -68,6 +68,10 @@ def commit(self) -> None:
     @abstractmethod
     def list_all(self) -> Iterable[str]: ...
 
+    @abstractmethod
+    def close(self) -> None:
+        """Release any resources held by the backing store."""
+
 
 def random_string() -> str:
     return binascii.hexlify(os.urandom(8)).decode("ascii")
@@ -136,6 +140,9 @@ def list_all(self) -> Iterable[str]:
             for file in files:
                 yield os.path.normpath(os_path_join(dir, file))
 
+    def close(self) -> None:
+        pass
+
 
 SCHEMA = """
 CREATE TABLE IF NOT EXISTS files2 (

mypy/test/testcheck.py

@@ -232,6 +232,10 @@ def run_case_once(
 
         if res:
             if options.cache_dir != os.devnull:
+                if sys.platform == "win32":
+                    print(
+                        f"verify_cache {options.cache_dir=}, {os.devnull=}, {testcase.writescache=}"
+                    )
                 self.verify_cache(module_data, res.manager, blocker, incremental_step)
 
             name = "targets"

mypyc/test/test_run.py

@@ -290,6 +290,8 @@ def run_case_step(self, testcase: DataDrivenTestCase, incremental_step: int) ->
             for line in e.messages:
                 print(fix_native_line_number(line, testcase.file, testcase.line))
             assert False, "Compile error"
+        finally:
+            result.manager.metastore.close()
 
         # Check that serialization works on this IR. (Only on the first
         # step because the returned ir only includes updated code.)

mypyc/test/testutil.py

@@ -139,6 +139,7 @@ def build_ir_for_single_file2(
         assert_func_ir_valid(fn)
     tree = result.graph[module.fullname].tree
     assert tree is not None
+    result.manager.metastore.close()
     return module, tree, result.types, mapper