add destructor

Author: marcy-terui

.gitignore

@@ -56,3 +56,5 @@ coverage.xml
 Session.vim
 .netrwhist
 *~
+
+test.py

libspecinfra/__init__.py

@@ -32,8 +32,12 @@ def __init__(self, direct):
         lib = load()
         lib.specinfra_new.argtypes = (ctypes.POINTER(BackendWrapperS),)
         lib.specinfra_new.restype = ctypes.POINTER(SpecinfraS)
+        lib.specinfra_free.argtypes = (ctypes.POINTER(SpecinfraS),)
         self.lib = lib
         self.obj = lib.specinfra_new(direct.obj)
 
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.lib.specinfra_free(self.obj)
+
     def file(self, path):
         return libspecinfra.resource.File(self.obj, path)

libspecinfra/backend/__init__.py

@@ -8,4 +8,8 @@ class Direct(object):
     def __init__(self):
         lib = libspecinfra.load()
         lib.backend_direct_new.restype = ctypes.POINTER(BackendWrapperS)
+        lib.backend_direct_free.argtypes = (ctypes.POINTER(BackendWrapperS),)
         self.obj = lib.backend_direct_new()
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.lib.backend_direct_free(self.obj)