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limits on recursion depth

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This commit is contained in:
Darren Ranalli 2008-09-05 21:58:27 +00:00
parent 7f90ceebfb
commit a53d2db6f7
1 changed files with 16 additions and 4 deletions
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20
direct/src/showbase/ExceptionVarDump.py
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@ -83,7 +83,7 @@ def _excepthookDumpVars(eType, eValue, tb):
frame = tb.tb_frame frame = tb.tb_frame
code = frame.f_code code = frame.f_code
# this is a list of every string identifier used in this stack frame's code # this is a list of every string identifier used in this stack frame's code
codeNames = code.co_names codeNames = set(code.co_names)
# skip everything before the 'run' method, those frames have lots of # skip everything before the 'run' method, those frames have lots of
# not-useful information # not-useful information
if not foundRun: if not foundRun:
@ -119,10 +119,11 @@ def _excepthookDumpVars(eType, eValue, tb):
baseIds.add(id(obj)) baseIds.add(id(obj))
for name in names: for name in names:
stateStack.push([name, name2obj[name], set(baseIds)]) stateStack.push([name, name2obj[name], set(baseIds), set(codeNames)])
while len(stateStack) > 0: while len(stateStack) > 0:
name, obj, visitedIds = stateStack.pop() name, obj, visitedIds, codeNames = stateStack.pop()
#notify.info('%s, %s, %s' % (name, fastRepr(obj), visitedIds))
r = fastRepr(obj, maxLen=10) r = fastRepr(obj, maxLen=10)
if type(r) is types.StringType: if type(r) is types.StringType:
r = r.replace('\n', '\\n') r = r.replace('\n', '\\n')
@ -131,6 +132,14 @@ def _excepthookDumpVars(eType, eValue, tb):
for attrName in codeNames: for attrName in codeNames:
attr = getattr(obj, attrName, _AttrNotFound) attr = getattr(obj, attrName, _AttrNotFound)
if (attr is not _AttrNotFound) and (id(attr) not in visitedIds): if (attr is not _AttrNotFound) and (id(attr) not in visitedIds):
# prevent infinite recursion on method wrappers (__init__.__init__.__init__...)
try:
className = attr.__class__.__name__
except:
pass
else:
if className == 'method-wrapper':
continue
attrName2obj[attrName] = attr attrName2obj[attrName] = attr
# show them in alphabetical order # show them in alphabetical order
attrNames = attrName2obj.keys() attrNames = attrName2obj.keys()
@ -141,7 +150,10 @@ def _excepthookDumpVars(eType, eValue, tb):
obj = attrName2obj[attrName] obj = attrName2obj[attrName]
ids = set(visitedIds) ids = set(visitedIds)
ids.add(id(obj)) ids.add(id(obj))
stateStack.push(['%s.%s' % (name, attrName), obj, ids]) # keep recursion in check, only allow one instance of each name at a time
cNames = set(codeNames)
cNames.remove(attrName)
stateStack.push(['%s.%s' % (name, attrName), obj, ids, cNames])
tb = tb.tb_next tb = tb.tb_next