Copy BitStrings tuple, do not reference it

[pyderasn.git] / pyderasn.py

diff --git a/pyderasn.py b/pyderasn.py
index acf5fbe8174b3007e9399783dc3c996d4e505d00..d14997bfe24d4569f7732bf238e812263aa92f89 100755 (executable)
--- a/pyderasn.py
+++ b/pyderasn.py
@@ -177,7 +177,7 @@ by specifying ``leavemm=True`` argument.
 When object is decoded, ``decoded`` property is true and you can safely
 use following properties:
 
 When object is decoded, ``decoded`` property is true and you can safely
 use following properties:
 

-* ``offset`` -- position from initial offset where object's tag is started
+* ``offset`` -- position including initial offset where object's tag starts

 * ``tlen`` -- length of object's tag
 * ``llen`` -- length of object's length value
 * ``vlen`` -- length of object's value
 * ``tlen`` -- length of object's tag
 * ``llen`` -- length of object's length value
 * ``vlen`` -- length of object's value


@@ -1656,7 +1656,10 @@ class BitString(Obj):
 
     def copy(self):
         obj = self.__class__(_specs=self.specs)
 
     def copy(self):
         obj = self.__class__(_specs=self.specs)

-        obj._value = self._value
+        value = self._value
+        if value is not None:
+            value = (value[0], value[1])
+        obj._value = value

         obj.tag = self.tag
         obj._expl = self._expl
         obj.default = self.default
         obj.tag = self.tag
         obj._expl = self._expl
         obj.default = self.default