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# NamedType specification for constructed types
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from pyasn1 import error
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def __init__(self, name, t):
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self.__name = name; self.__type = t
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def __repr__(self): return '%s(%s, %s)' % (
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self.__class__.__name__, repr(self.__name), repr(self.__type)
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def getType(self): return self.__type
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def getName(self): return self.__name
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def __getitem__(self, idx):
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if idx == 0: return self.__name
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if idx == 1: return self.__type
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class OptionalNamedType(NamedType):
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class DefaultedNamedType(NamedType):
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def __init__(self, *namedTypes):
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self.__namedTypes = namedTypes
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self.__minTagSet = None
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self.__typeMap = {}; self.__tagMap = {}; self.__nameMap = {}
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self.__ambigiousTypes = {}
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r = '%s(' % self.__class__.__name__
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for n in self.__namedTypes:
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r = r + '%s, ' % repr(n)
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def __getitem__(self, idx): return self.__namedTypes[idx]
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def __nonzero__(self):
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if self.__namedTypes: return 1
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def __len__(self): return len(self.__namedTypes)
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def getTypeByPosition(self, idx):
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return self.__namedTypes[idx].getType()
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raise error.PyAsn1Error('Type position out of range')
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def getPositionByType(self, tagSet):
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idx = len(self.__namedTypes)
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for t in self.__namedTypes[idx].getType().getTypeMap().keys():
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if self.__tagMap.has_key(t):
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raise error.PyAsn1Error('Duplicate type %s' % t)
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self.__tagMap[t] = idx
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return self.__tagMap[tagSet]
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raise error.PyAsn1Error('Type %s not found' % tagSet)
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def getNameByPosition(self, idx):
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return self.__namedTypes[idx].getName()
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raise error.PyAsn1Error('Type position out of range')
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def getPositionByName(self, name):
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if not self.__nameMap:
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idx = len(self.__namedTypes)
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n = self.__namedTypes[idx].getName()
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if self.__nameMap.has_key(n):
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raise error.PyAsn1Error('Duplicate name %s' % n)
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self.__nameMap[n] = idx
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return self.__nameMap[name]
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raise error.PyAsn1Error('Name %s not found' % name)
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def __buildAmbigiousTagMap(self):
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idx = len(self.__namedTypes)
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t = self.__namedTypes[idx]
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if t.isOptional or t.isDefaulted:
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ambigiousTypes = (t, ) + ambigiousTypes
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ambigiousTypes = (t, )
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self.__ambigiousTypes[idx] = apply(NamedTypes, ambigiousTypes)
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def getTypeMapNearPosition(self, idx):
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if not self.__ambigiousTypes: self.__buildAmbigiousTagMap()
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return self.__ambigiousTypes[idx].getTypeMap()
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raise error.PyAsn1Error('Type position out of range')
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def getPositionNearType(self, tagSet, idx):
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if not self.__ambigiousTypes: self.__buildAmbigiousTagMap()
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return idx+self.__ambigiousTypes[idx].getPositionByType(tagSet)
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raise error.PyAsn1Error('Type position out of range')
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def genMinTagSet(self):
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if self.__minTagSet is None:
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for t in self.__namedTypes:
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tagSet = getattr(__type,'getMinTagSet',__type.getTagSet)()
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if self.__minTagSet is None or tagSet < self.__minTagSet:
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self.__minTagSet = tagSet
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return self.__minTagSet
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def getTypeMap(self, uniq=None):
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if not self.__typeMap:
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for t in self.__namedTypes:
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typeMap = __type.getTypeMap()
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for k in typeMap.keys():
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if self.__typeMap.has_key(k):
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raise error.PyAsn1Error(
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'Duplicate type %s in map %s'%(k,self.__typeMap)
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self.__typeMap[k] = __type
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for k in typeMap.keys():
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self.__typeMap[k] = __type
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return self.__typeMap
added
removed
pyasn1/v1/type/namedtype.py
