def _subchainAndResolutionOrNone(self, pyObject, chain):
if PyforaInspect.isfunction(pyObject):
return self._lookupChainInFunction(pyObject, chain)
if PyforaInspect.isclass(pyObject):
return self._lookupChainInClass(pyObject, chain)
return None
def _subchainAndResolutionOrNone(self, pyObject, pyAst, chainWithPosition):
if PyforaInspect.isfunction(pyObject):
return self._lookupChainInFunction(pyObject, chainWithPosition)
if PyforaInspect.isclass(pyObject):
return self._lookupChainInClass(pyObject, pyAst, chainWithPosition)
return None
def _lookupChainInFunctionOrClass(self, pyObject, pyAst,
chainWithPosition):
if PyforaInspect.isfunction(pyObject):
return self._lookupChainInFunction(pyObject, chainWithPosition)
if PyforaInspect.isclass(pyObject):
return self._lookupChainInClass(pyObject, pyAst, chainWithPosition)
assert False, "should only have functions or classes here"
def _subchainAndResolutionOrNone(self, pyObject, chainWithPosition):
if PyforaInspect.isfunction(pyObject):
return self._lookupChainInFunction(pyObject, chainWithPosition)
if PyforaInspect.isclass(pyObject):
return self._lookupChainInClass(pyObject, chainWithPosition)
raise Exceptions.PythonToForaConversionError(
"don't know how to resolve %s in %s (line:%s)" %
(chainWithPosition.var, pyObject, chainWithPosition.pos.lineno))
def _subchainAndResolutionOrNone(self, pyObject, chainWithPosition):
if PyforaInspect.isfunction(pyObject):
return self._lookupChainInFunction(pyObject, chainWithPosition)
if PyforaInspect.isclass(pyObject):
return self._lookupChainInClass(pyObject, chainWithPosition)
raise Exceptions.PythonToForaConversionError(
"don't know how to resolve %s in %s (line:%s)"
% (chainWithPosition.var, pyObject, chainWithPosition.pos.lineno)
)
def _objectToWalkInsteadOrNone(self, pyObject):
"""Takes a python object and returns another python object or None.
If the given python object belongs to the PyObjectNode hierarchy,
return None, otherwise build or fetch from a cache the appropriate
PyObjectNode to walk, and return it.
"""
tr = None
if isinstance(pyObject, PyObjectNodes.PyObjectNode):
return tr # If this is the common path, we may want to pull it to the call-site(s)
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
tr = PyObjectNodes.RemotePythonObject(pyObject)
elif isinstance(
pyObject, Exception
) and pyObject.__class__ in NamedSingletons.pythonSingletonToName:
tr = PyObjectNodes.BuiltinExceptionInstance(
pyObject,
NamedSingletons.pythonSingletonToName[pyObject.__class__],
pyObject.args)
elif isinstance(
pyObject,
(type, type(isinstance)
)) and pyObject in NamedSingletons.pythonSingletonToName:
tr = PyObjectNodes.NamedSingleton(
pyObject, NamedSingletons.pythonSingletonToName[pyObject])
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
tr = self._pyObjectNodeForWithBlock(pyObject)
elif id(pyObject) in self._convertedObjectCache:
tr = self._convertedObjectCache[id(pyObject)][1]
elif self.purePythonClassMapping.canMap(pyObject):
pureInstance = self.purePythonClassMapping.mappableInstanceToPure(
pyObject)
self._convertedObjectCache[id(pyObject)] = (pyObject, pureInstance)
tr = pureInstance
elif isinstance(pyObject, tuple):
tr = PyObjectNodes.Tuple(pyObject)
elif isinstance(pyObject, list):
tr = PyObjectNodes.List(pyObject)
elif isinstance(pyObject, dict):
tr = PyObjectNodes.Dict(pyObject)
elif _isPrimitive(pyObject):
tr = PyObjectNodes.Primitive(pyObject)
elif PyforaInspect.isfunction(pyObject):
tr = self._pyObjectNodeForFunction(pyObject)
elif PyforaInspect.isclass(pyObject):
tr = self._pyObjectNodeForClass(pyObject)
elif isClassInstance(pyObject):
tr = self._classInstanceDescriptionFromClassInstance(pyObject)
return tr
def populateModuleMembers(self, path):
res = {}
module = self.moduleForFile(path)
for leafItemName in module.__dict__:
leafItemValue = module.__dict__[leafItemName]
if PyforaInspect.isclass(leafItemValue) or PyforaInspect.isfunction(leafItemValue):
try:
_, lineNumber = PyforaInspect.findsource(leafItemValue)
res[lineNumber+1] = leafItemValue
except:
pass
self.moduleClassesAndFunctionsByPath[path] = res
def populateModuleMembers(self, path):
if path in self.moduleClassesAndFunctionsByPath:
return
res = self.moduleClassesAndFunctionsByPath[path] = {}
module = self.moduleForFile(path)
if module is not None and self.canPopulateForPath(path):
for leafItemName in module.__dict__:
leafItemValue = module.__dict__[leafItemName]
if PyforaInspect.isclass(
leafItemValue) or PyforaInspect.isfunction(
leafItemValue):
try:
sourcePath = PyforaInspect.getsourcefile(leafItemValue)
if sourcePath is not None:
if os.path.samefile(path, sourcePath):
_, lineNumber = PyforaInspect.findsource(
leafItemValue)
lineNumberToUse = lineNumber + 1
if lineNumberToUse in res and res[
lineNumberToUse] is not leafItemValue:
raise Exceptions.ForaToPythonConversionError(
("PythonObjectRehydratorHelpers got a line number collision at lineNumber %s"
", between %s and %s"),
lineNumberToUse, leafItemValue,
res[lineNumber + 1])
res[lineNumberToUse] = leafItemValue
else:
self.populateModuleMembers(sourcePath)
except Exceptions.ForaToPythonConversionError:
raise
except PyforaInspect.PyforaInspectError:
pass
except IOError:
#this gets raised when PyforaInspect can't find a file it needs
pass
except Exception as e:
logging.critical(
"PyforaInspect threw an exception: %s. tb = %s", e,
traceback.format_exc())
def _objectToWalkInsteadOrNone(self, pyObject):
"""Takes a python object and returns another python object or None.
If the given python object belongs to the PyObjectNode hierarchy,
return None, otherwise build or fetch from a cache the appropriate
PyObjectNode to walk, and return it.
"""
tr = None
if isinstance(pyObject, PyObjectNodes.PyObjectNode):
return tr # If this is the common path, we may want to pull it to the call-site(s)
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
tr = PyObjectNodes.RemotePythonObject(pyObject)
elif isinstance(pyObject, Exception) and pyObject.__class__ in NamedSingletons.pythonSingletonToName:
tr = PyObjectNodes.BuiltinExceptionInstance(
pyObject,
NamedSingletons.pythonSingletonToName[pyObject.__class__],
pyObject.args
)
elif isinstance(pyObject, (type, type(isinstance))) and pyObject in NamedSingletons.pythonSingletonToName:
tr = PyObjectNodes.NamedSingleton(pyObject, NamedSingletons.pythonSingletonToName[pyObject])
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
tr = self._pyObjectNodeForWithBlock(pyObject)
elif id(pyObject) in self._convertedObjectCache:
tr = self._convertedObjectCache[id(pyObject)][1]
elif self.purePythonClassMapping.canMap(pyObject):
pureInstance = self.purePythonClassMapping.mappableInstanceToPure(pyObject)
self._convertedObjectCache[id(pyObject)] = (pyObject, pureInstance)
tr = pureInstance
elif isinstance(pyObject, tuple):
tr = PyObjectNodes.Tuple(pyObject)
elif isinstance(pyObject, list):
tr = PyObjectNodes.List(pyObject)
elif isinstance(pyObject, dict):
tr = PyObjectNodes.Dict(pyObject)
elif _isPrimitive(pyObject):
tr = PyObjectNodes.Primitive(pyObject)
elif PyforaInspect.isfunction(pyObject):
tr = self._pyObjectNodeForFunction(pyObject)
elif PyforaInspect.isclass(pyObject):
tr = self._pyObjectNodeForClass(pyObject)
elif isClassInstance(pyObject):
tr = self._classInstanceDescriptionFromClassInstance(pyObject)
return tr
def _walkPyObject(self, pyObject, objectId):
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
self._registerRemotePythonObject(objectId, pyObject)
elif isinstance(pyObject, Future.Future):
#it would be better to register the future and do a second pass of walking
self._walkPyObject(pyObject.result(), objectId)
elif isinstance(pyObject, _FileDescription):
self._registerFileDescription(objectId, pyObject)
elif isinstance(pyObject, Exception) and pyObject.__class__ in \
NamedSingletons.pythonSingletonToName:
self._registerBuiltinExceptionInstance(objectId, pyObject)
elif isinstance(pyObject, (type, type(isinstance))) and \
pyObject in NamedSingletons.pythonSingletonToName:
self._registerNamedSingleton(
objectId,
NamedSingletons.pythonSingletonToName[pyObject]
)
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
self._registerWithBlock(objectId, pyObject)
elif isinstance(pyObject, _Unconvertible):
self._registerUnconvertible(objectId)
elif isinstance(pyObject, tuple):
self._registerTuple(objectId, pyObject)
elif isinstance(pyObject, list):
self._registerList(objectId, pyObject)
elif isinstance(pyObject, dict):
self._registerDict(objectId, pyObject)
elif isPrimitive(pyObject):
self._registerPrimitive(objectId, pyObject)
elif PyforaInspect.isfunction(pyObject):
self._registerFunction(objectId, pyObject)
elif PyforaInspect.isclass(pyObject):
self._registerClass(objectId, pyObject)
elif isinstance(pyObject, instancemethod):
self._registerInstanceMethod(objectId, pyObject)
elif isClassInstance(pyObject):
self._registerClassInstance(objectId, pyObject)
else:
assert False, "don't know what to do with %s" % pyObject
def populateModuleMembers(self, path):
res = {}
module = self.moduleForFile(path)
if module is not None:
for leafItemName in module.__dict__:
leafItemValue = module.__dict__[leafItemName]
if PyforaInspect.isclass(leafItemValue) or PyforaInspect.isfunction(leafItemValue):
try:
sourcePath = PyforaInspect.getsourcefile(leafItemValue)
if os.path.samefile(path, sourcePath):
_, lineNumber = PyforaInspect.findsource(leafItemValue)
lineNumberToUse = lineNumber + 1
if lineNumberToUse in res:
raise Exceptions.ForaToPythonConversionError(
("PythonObjectRehydrator got a line number collision at lineNumber %s"
", between %s and %s"),
lineNumberToUse,
leafItemValue,
res[lineNumber + 1]
)
res[lineNumberToUse] = leafItemValue
else:
self.populateModuleMembers(sourcePath)
except Exceptions.ForaToPythonConversionError:
raise
except Exception as e:
logging.critical("PyforaInspect threw an exception: %s. tb = %s",
e,
traceback.format_exc())
self.moduleClassesAndFunctionsByPath[path] = res
def _walkPyObject(self, pyObject, objectId):
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
self._registerRemotePythonObject(objectId, pyObject)
elif isinstance(pyObject, Future.Future):
#it would be better to register the future and do a second pass of walking
self._walkPyObject(pyObject.result(), objectId)
elif isinstance(pyObject, _FileDescription):
self._registerFileDescription(objectId, pyObject)
elif isinstance(pyObject, Exception) and pyObject.__class__ in \
NamedSingletons.pythonSingletonToName:
self._registerBuiltinExceptionInstance(objectId, pyObject)
elif isinstance(pyObject, (type, type(isinstance))) and \
pyObject in NamedSingletons.pythonSingletonToName:
self._registerNamedSingleton(
objectId, NamedSingletons.pythonSingletonToName[pyObject])
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
self._registerWithBlock(objectId, pyObject)
elif isinstance(pyObject, _Unconvertible):
self._registerUnconvertible(objectId)
elif isinstance(pyObject, tuple):
self._registerTuple(objectId, pyObject)
elif isinstance(pyObject, list):
self._registerList(objectId, pyObject)
elif isinstance(pyObject, dict):
self._registerDict(objectId, pyObject)
elif isPrimitive(pyObject):
self._registerPrimitive(objectId, pyObject)
elif PyforaInspect.isfunction(pyObject):
self._registerFunction(objectId, pyObject)
elif PyforaInspect.isclass(pyObject):
self._registerClass(objectId, pyObject)
elif isinstance(pyObject, instancemethod):
self._registerInstanceMethod(objectId, pyObject)
elif isClassInstance(pyObject):
self._registerClassInstance(objectId, pyObject)
else:
assert False, "don't know what to do with %s" % pyObject
def _classMemberFunctions(self, pyObject):
return PyforaInspect.getmembers(
pyObject,
lambda elt: PyforaInspect.ismethod(elt) or PyforaInspect.isfunction(elt)
)
def walkPyObject(self, pyObject):
"""
`walkPyObject`: recursively traverse a live python object,
registering its "pieces" with an `ObjectRegistry`
(`self.objectRegistry`).
Note that we use python `id`s for caching in this class,
which means it cannot be used in cases where `id`s might get
reused (recall they are just memory addresses).
`objectId`s are assigned to all pieces of the python object.
Returns:
An `int`, the `objectId` of the root python object.
"""
if id(pyObject) in self._pyObjectIdToObjectId:
return self._pyObjectIdToObjectId[id(pyObject)]
if id(pyObject) in self._convertedObjectCache:
pyObject = self._convertedObjectCache[id(pyObject)]
elif self._purePythonClassMapping.canMap(pyObject):
pureInstance = self._purePythonClassMapping.mappableInstanceToPure(
pyObject)
self._convertedObjectCache[id(pyObject)] = pureInstance
pyObject = pureInstance
objectId = self._allocateId(pyObject)
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
self._registerRemotePythonObject(objectId, pyObject)
elif isinstance(pyObject, _FileDescription):
self._registerFileDescription(objectId, pyObject)
elif isinstance(pyObject, Exception) and pyObject.__class__ in \
NamedSingletons.pythonSingletonToName:
self._registerBuiltinExceptionInstance(objectId, pyObject)
elif isinstance(pyObject, (type, type(isinstance))) and \
pyObject in NamedSingletons.pythonSingletonToName:
self._registerNamedSingleton(
objectId, NamedSingletons.pythonSingletonToName[pyObject])
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
self._registerWithBlock(objectId, pyObject)
elif isinstance(pyObject, tuple):
self._registerTuple(objectId, pyObject)
elif isinstance(pyObject, list):
self._registerList(objectId, pyObject)
elif isinstance(pyObject, dict):
self._registerDict(objectId, pyObject)
elif isPrimitive(pyObject):
self._registerPrimitive(objectId, pyObject)
elif PyforaInspect.isfunction(pyObject):
self._registerFunction(objectId, pyObject)
elif PyforaInspect.isclass(pyObject):
self._registerClass(objectId, pyObject)
elif isinstance(pyObject, instancemethod):
self._registerInstanceMethod(objectId, pyObject)
elif isClassInstance(pyObject):
self._registerClassInstance(objectId, pyObject)
else:
assert False, "don't know what to do with %s" % pyObject
return objectId
def walkPyObject(self, pyObject):
"""
`walkPyObject`: recursively traverse a live python object,
registering its "pieces" with an `ObjectRegistry`
(`self.objectRegistry`).
Note that we use python `id`s for caching in this class,
which means it cannot be used in cases where `id`s might get
reused (recall they are just memory addresses).
`objectId`s are assigned to all pieces of the python object.
Returns:
An `int`, the `objectId` of the root python object.
"""
if id(pyObject) in self._pyObjectIdToObjectId:
return self._pyObjectIdToObjectId[id(pyObject)]
if id(pyObject) in self._convertedObjectCache:
pyObject = self._convertedObjectCache[id(pyObject)]
elif self._purePythonClassMapping.canMap(pyObject):
pureInstance = self._purePythonClassMapping.mappableInstanceToPure(
pyObject
)
self._convertedObjectCache[id(pyObject)] = pureInstance
pyObject = pureInstance
objectId = self._allocateId(pyObject)
if isinstance(pyObject, RemotePythonObject.RemotePythonObject):
self._registerRemotePythonObject(objectId, pyObject)
elif isinstance(pyObject, _FileDescription):
self._registerFileDescription(objectId, pyObject)
elif isinstance(pyObject, Exception) and pyObject.__class__ in \
NamedSingletons.pythonSingletonToName:
self._registerBuiltinExceptionInstance(objectId, pyObject)
elif isinstance(pyObject, (type, type(isinstance))) and \
pyObject in NamedSingletons.pythonSingletonToName:
self._registerNamedSingleton(
objectId,
NamedSingletons.pythonSingletonToName[pyObject]
)
elif isinstance(pyObject, PyforaWithBlock.PyforaWithBlock):
self._registerWithBlock(objectId, pyObject)
elif isinstance(pyObject, tuple):
self._registerTuple(objectId, pyObject)
elif isinstance(pyObject, list):
self._registerList(objectId, pyObject)
elif isinstance(pyObject, dict):
self._registerDict(objectId, pyObject)
elif isPrimitive(pyObject):
self._registerPrimitive(objectId, pyObject)
elif PyforaInspect.isfunction(pyObject):
self._registerFunction(objectId, pyObject)
elif PyforaInspect.isclass(pyObject):
self._registerClass(objectId, pyObject)
elif isinstance(pyObject, instancemethod):
self._registerInstanceMethod(objectId, pyObject)
elif isClassInstance(pyObject):
self._registerClassInstance(objectId, pyObject)
else:
assert False, "don't know what to do with %s" % pyObject
return objectId
