diff options
Diffstat (limited to 'src/python/m5/config.py')
| -rw-r--r-- | src/python/m5/config.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/python/m5/config.py b/src/python/m5/config.py index 9de768d18..3eb99972f 100644 --- a/src/python/m5/config.py +++ b/src/python/m5/config.py @@ -211,6 +211,7 @@ class MetaSimObject(type): # initialize required attributes cls._params = multidict() cls._values = multidict() + cls._instantiated = False # really instantiated or subclassed cls._anon_subclass_counter = 0 # We don't support multiple inheritance. If you want to, you @@ -225,6 +226,7 @@ class MetaSimObject(type): if isinstance(base, MetaSimObject): cls._params.parent = base._params cls._values.parent = base._values + base._instantiated = True # now process the _init_dict items for key,val in cls._init_dict.items(): @@ -299,6 +301,12 @@ class MetaSimObject(type): param = cls._params.get(attr, None) if param: # It's ok: set attribute by delegating to 'object' class. + if (isSimObject(value) or isSimObjSequence(value)) \ + and cls._instantiated: + raise AttributeError, \ + "Cannot set SimObject parameter '%s' after\n" \ + " class %s has been instantiated or subclassed" \ + % (attr, cls.__name__) try: cls._values[attr] = param.convert(value) except Exception, e: @@ -386,6 +394,8 @@ class SimObject(object): # instantiated objects. _memo = {} + self.__class__._instantiated = True + self._children = {} # Inherit parameter values from class using multidict so # individual value settings can be overridden. |