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from pyasn1 import error
class TagMap:
def __init__(self, posMap={}, negMap={}, defType=None):
self.__posMap = posMap.copy()
self.__negMap = negMap.copy()
self.__defType = defType
def __contains__(self, tagSet):
return tagSet in self.__posMap or \
self.__defType is not None and tagSet not in self.__negMap
def __getitem__(self, tagSet):
if tagSet in self.__posMap:
return self.__posMap[tagSet]
elif tagSet in self.__negMap:
raise error.PyAsn1Error('Key in negative map')
elif self.__defType is not None:
return self.__defType
else:
raise KeyError()
def __repr__(self):
s = self.__class__.__name__ + '('
if self.__posMap:
s = s + 'posMap=%r, ' % (self.__posMap,)
if self.__negMap:
s = s + 'negMap=%r, ' % (self.__negMap,)
if self.__defType is not None:
s = s + 'defType=%r' % (self.__defType,)
return s + ')'
def __str__(self):
s = self.__class__.__name__ + ':\n'
if self.__posMap:
s = s + 'posMap:\n%s, ' % ',\n '.join([ x.prettyPrintType() for x in self.__posMap.values()])
if self.__negMap:
s = s + 'negMap:\n%s, ' % ',\n '.join([ x.prettyPrintType() for x in self.__negMap.values()])
if self.__defType is not None:
s = s + 'defType:\n%s, ' % self.__defType.prettyPrintType()
return s
def clone(self, parentType, tagMap, uniq=False):
if self.__defType is not None and tagMap.getDef() is not None:
raise error.PyAsn1Error('Duplicate default value at %s' % (self,))
if tagMap.getDef() is not None:
defType = tagMap.getDef()
else:
defType = self.__defType
posMap = self.__posMap.copy()
for k in tagMap.getPosMap():
if uniq and k in posMap:
raise error.PyAsn1Error('Duplicate positive key %s' % (k,))
posMap[k] = parentType
negMap = self.__negMap.copy()
negMap.update(tagMap.getNegMap())
return self.__class__(
posMap, negMap, defType,
)
def getPosMap(self): return self.__posMap.copy()
def getNegMap(self): return self.__negMap.copy()
def getDef(self): return self.__defType
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