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authorSteve Reinhardt <stever@eecs.umich.edu>2006-06-11 20:37:56 -0400
committerSteve Reinhardt <stever@eecs.umich.edu>2006-06-11 20:37:56 -0400
commitd3a57835234ab2ca3830bad380e434ec2c8d2418 (patch)
tree809969d80c071030f8ff9b94920f4432d33825c2
parent4ab8e881edecd47ae3f2ba5fda345f7ff9788870 (diff)
downloadgem5-d3a57835234ab2ca3830bad380e434ec2c8d2418.tar.xz
Add some utility functions to ease handling
SimObjects and sequences of SimObjects in a uniform manner. --HG-- extra : convert_revision : 5db28b778c6b1ca63ad0a112ad7e92cd610f64d3
-rw-r--r--src/python/m5/config.py57
1 files changed, 36 insertions, 21 deletions
diff --git a/src/python/m5/config.py b/src/python/m5/config.py
index 3eb99972f..97e13c900 100644
--- a/src/python/m5/config.py
+++ b/src/python/m5/config.py
@@ -143,8 +143,8 @@ def isSimObjectClass(value):
# happens if value is not a class at all
return False
-def isSimObjSequence(value):
- if not isinstance(value, (list, tuple)):
+def isSimObjectSequence(value):
+ if not isinstance(value, (list, tuple)) or len(value) == 0:
return False
for val in value:
@@ -153,8 +153,8 @@ def isSimObjSequence(value):
return True
-def isSimObjClassSequence(value):
- if not isinstance(value, (list, tuple)):
+def isSimObjectClassSequence(value):
+ if not isinstance(value, (list, tuple)) or len(value) == 0:
return False
for val in value:
@@ -163,9 +163,31 @@ def isSimObjClassSequence(value):
return True
+def isSimObjectOrSequence(value):
+ return isSimObject(value) or isSimObjectSequence(value)
+
+def isSimObjectClassOrSequence(value):
+ return isSimObjectClass(value) or isSimObjectClassSequence(value)
+
def isNullPointer(value):
return isinstance(value, NullSimObject)
+# Apply method to object.
+# applyMethod(obj, 'meth', <args>) is equivalent to obj.meth(<args>)
+def applyMethod(obj, meth, *args, **kwargs):
+ return getattr(obj, meth)(*args, **kwargs)
+
+# If the first argument is an (non-sequence) object, apply the named
+# method with the given arguments. If the first argument is a
+# sequence, apply the method to each element of the sequence (a la
+# 'map').
+def applyOrMap(objOrSeq, meth, *args, **kwargs):
+ if not isinstance(objOrSeq, (list, tuple)):
+ return applyMethod(objOrSeq, meth, *args, **kwargs)
+ else:
+ return [applyMethod(o, meth, *args, **kwargs) for o in objOrSeq]
+
+
# The metaclass for ConfigNode (and thus for everything that derives
# from ConfigNode, including SimObject). This class controls how new
# classes that derive from ConfigNode are instantiated, and provides
@@ -255,21 +277,15 @@ class MetaSimObject(type):
# Existing classes should not have any instance values, so
# these can only occur at the lowest level dict (the
# parameters just being set in this class definition).
- if isSimObject(val):
- assert(val == cls._values.local[key])
- cls._values[key] = val.makeClass(memo)
- elif isSimObjSequence(val) and len(val):
+ if isSimObjectOrSequence(val):
assert(val == cls._values.local[key])
- cls._values[key] = [ v.makeClass(memo) for v in val ]
+ cls._values[key] = applyOrMap(val, 'makeClass', memo)
# SimObject classes need to be subclassed so that
# parameters that get set at this level only affect this
# level and derivatives.
- elif isSimObjectClass(val):
- assert(not cls._values.local.has_key(key))
- cls._values[key] = val.makeSubclass({}, memo)
- elif isSimObjClassSequence(val) and len(val):
+ elif isSimObjectClassOrSequence(val):
assert(not cls._values.local.has_key(key))
- cls._values[key] = [ v.makeSubclass({}, memo) for v in val ]
+ cls._values[key] = applyOrMap(val, 'makeSubclass', {}, memo)
def _set_keyword(cls, keyword, val, kwtype):
@@ -301,8 +317,7 @@ 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:
+ if isSimObjectOrSequence(value) and cls._instantiated:
raise AttributeError, \
"Cannot set SimObject parameter '%s' after\n" \
" class %s has been instantiated or subclassed" \
@@ -315,7 +330,7 @@ class MetaSimObject(type):
e.args = (msg, )
raise
# I would love to get rid of this
- elif isSimObject(value) or isSimObjSequence(value):
+ elif isSimObjectOrSequence(value):
cls._values[attr] = value
else:
raise AttributeError, \
@@ -407,7 +422,7 @@ class SimObject(object):
for key,val in self.__class__._values.iteritems():
if isSimObjectClass(val):
setattr(self, key, val(_memo))
- elif isSimObjClassSequence(val) and len(val):
+ elif isSimObjectClassSequence(val) and len(val):
setattr(self, key, [ v(_memo) for v in val ])
# apply attribute assignments from keyword args, if any
for key,val in kwargs.iteritems():
@@ -454,7 +469,7 @@ class SimObject(object):
e.args = (msg, )
raise
# I would love to get rid of this
- elif isSimObject(value) or isSimObjSequence(value):
+ elif isSimObjectOrSequence(value):
pass
else:
raise AttributeError, "Class %s has no parameter %s" \
@@ -465,7 +480,7 @@ class SimObject(object):
if isSimObject(value):
value.set_path(self, attr)
- elif isSimObjSequence(value):
+ elif isSimObjectSequence(value):
value = SimObjVector(value)
[v.set_path(self, "%s%d" % (attr, i)) for i,v in enumerate(value)]
@@ -888,7 +903,7 @@ class VectorParamDesc(ParamDesc):
if isinstance(value, (list, tuple)):
# list: coerce each element into new list
tmp_list = [ ParamDesc.convert(self, v) for v in value ]
- if isSimObjSequence(tmp_list):
+ if isSimObjectSequence(tmp_list):
return SimObjVector(tmp_list)
else:
return VectorParamValue(tmp_list)