#####################################################################
class Proxy(object):
- def __init__(self, path = ()):
+ def __init__(self, path):
self._object = None
- self._path = path
+ if path == 'any':
+ self._path = None
+ else:
+ # path is a list of (attr,index) tuples
+ self._path = [(path,None)]
+ self._index = None
+ self._multiplier = None
def __getattr__(self, attr):
- return Proxy(self._path + (attr, ))
+ if attr == '__bases__':
+ return super(Proxy, self).__getattr__(self, attr)
+ self._path.append((attr,None))
+ return self
def __setattr__(self, attr, value):
if not attr.startswith('_'):
raise AttributeError, 'cannot set attribute %s' % attr
super(Proxy, self).__setattr__(attr, value)
- def _convert(self):
- obj = self._object
- for attr in self._path:
- obj = obj.__getattribute__(attr)
+ # support indexing on proxies (e.g., parent.cpu[0])
+ def __getitem__(self, key):
+ if not isinstance(key, int):
+ raise TypeError, "Proxy object requires integer index"
+ if self._path == None:
+ raise IndexError, "Index applied to 'any' proxy"
+ # replace index portion of last path element with new index
+ self._path[-1] = (self._path[-1][0], key)
+ return self
+
+ # support multiplying proxies by constants
+ def __mul__(self, other):
+ if not isinstance(other, int):
+ raise TypeError, "Proxy multiplier must be integer"
+ if self._multiplier == None:
+ self._multiplier = other
+ else:
+ # support chained multipliers
+ self._multiplier *= other
+ return self
+
+ def _mulcheck(self, result):
+ if self._multiplier == None:
+ return result
+ if not isinstance(result, int):
+ raise TypeError, "Proxy with multiplier resolves to " \
+ "non-integer value"
+ return result * self._multiplier
+
+ def unproxy(self, base, ptype):
+ obj = base
+ done = False
+ while not done:
+ if obj is None:
+ raise AttributeError, \
+ 'Parent of %s type %s not found at path %s' \
+ % (base.name, ptype, self._path)
+ found, done = obj.find(ptype, self._path)
+ if isinstance(found, Proxy):
+ done = False
+ obj = obj.parent
+
+ return self._mulcheck(found)
+
+ def getindex(obj, index):
+ if index == None:
+ return obj
+ try:
+ obj = obj[index]
+ except TypeError:
+ if index != 0:
+ raise
+ # if index is 0 and item is not subscriptable, just
+ # use item itself (so cpu[0] works on uniprocessors)
return obj
+ getindex = staticmethod(getindex)
+
+class ProxyFactory(object):
+ def __getattr__(self, attr):
+ return Proxy(attr)
-Super = Proxy()
+# global object for handling parent.foo proxies
+parent = ProxyFactory()
def isSubClass(value, cls):
try:
if issubclass(child.realtype, realtype):
if obj is not None:
raise AttributeError, \
- 'Super matched more than one: %s %s' % \
+ 'parent.any matched more than one: %s %s' % \
(obj.path, child.path)
obj = child
return obj, obj is not None
try:
obj = self
- for node in path[:-1]:
- obj = obj.child_names[node]
+ for (node,index) in path[:-1]:
+ if obj.child_names.has_key(node):
+ obj = obj.child_names[node]
+ else:
+ obj = obj.top_child_names[node]
+ obj = Proxy.getindex(obj, index)
- last = path[-1]
+ (last,index) = path[-1]
if obj.child_names.has_key(last):
value = obj.child_names[last]
- if issubclass(value.realtype, realtype):
- return value, True
+ return Proxy.getindex(value, index), True
+ elif obj.top_child_names.has_key(last):
+ value = obj.top_child_names[last]
+ return Proxy.getindex(value, index), True
elif obj.param_names.has_key(last):
value = obj.param_names[last]
realtype._convert(value.value)
- return value.value, True
+ return Proxy.getindex(value.value, index), True
except KeyError:
pass
return None, False
- def unproxy(self, ptype, value):
- if not isinstance(value, Proxy):
- return value
-
- if value is None:
- raise AttributeError, 'Error while fixing up %s' % self.path
-
- obj = self
- done = False
- while not done:
- if obj is None:
- raise AttributeError, \
- 'Parent of %s type %s not found at path %s' \
- % (self.name, ptype, value._path)
- found, done = obj.find(ptype, value._path)
- if isinstance(found, Proxy):
- done = False
- obj = obj.parent
-
- return found
+ def unproxy(self, param, ptype):
+ if not isinstance(param, Proxy):
+ return param
+ return param.unproxy(self, ptype)
def fixup(self):
self.all[self.path] = self
try:
if isinstance(pval, (list, tuple)):
- param.value = [ self.unproxy(ptype, pv) for pv in pval ]
+ param.value = [ self.unproxy(pv, ptype) for pv in pval ]
else:
- param.value = self.unproxy(ptype, pval)
+ param.value = self.unproxy(pval, ptype)
except:
print 'Error while fixing up %s:%s' % (self.path, param.name)
raise
# 'from config import *' is invoked. Try to keep this reasonably
# short to avoid polluting other namespaces.
__all__ = ['ConfigNode', 'SimObject', 'ParamContext', 'Param', 'VectorParam',
- 'Super', 'Enum',
+ 'parent', 'Enum',
'Int', 'Unsigned', 'Int8', 'UInt8', 'Int16', 'UInt16',
'Int32', 'UInt32', 'Int64', 'UInt64',
'Counter', 'Addr', 'Tick', 'Percent',
projects / gem5.git / commitdiff