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@@ 259-303 (lines=45) @@
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__rand__ = __and__ |
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class Or(Fields.predicates): |
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""" |
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`Or` predicate. Exits at first sub-predicate that returns ``True``. |
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""" |
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def __init__(self, *predicates): |
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self.predicates = predicates |
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def __str__(self): |
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return 'Or(%s)' % ', '.join(str(p) for p in self.predicates) |
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def __repr__(self): |
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return '<hunter.predicates.Or: predicates=%r>' % (self.predicates,) |
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def __call__(self, event): |
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""" |
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Handles the event. |
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""" |
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for predicate in self.predicates: |
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if predicate(event): |
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return True |
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else: |
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return False |
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def __eq__(self, other): |
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if isinstance(other, Or): |
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if len(self.predicates) != len(other.predicates): |
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return False |
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return set(self.predicates) == set(other.predicates) |
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return NotImplemented |
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def __or__(self, other): |
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return Or(*chain(self.predicates, other.predicates if isinstance(other, Or) else (other,))) |
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def __and__(self, other): |
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return And(self, other) |
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def __invert__(self): |
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return Not(self) |
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def __hash__(self): |
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return hash(frozenset(self.predicates)) |
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__ror__ = __or__ |
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__rand__ = __and__ |
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class Not(Fields.predicate): |
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@@ 212-256 (lines=45) @@
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__rand__ = __and__ |
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class And(Fields.predicates): |
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""" |
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`And` predicate. Exits at the first sub-predicate that returns ``False``. |
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""" |
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def __init__(self, *predicates): |
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self.predicates = predicates |
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def __str__(self): |
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return 'And(%s)' % ', '.join(str(p) for p in self.predicates) |
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def __repr__(self): |
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return '<hunter.predicates.And: predicates=%r>' % (self.predicates,) |
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def __call__(self, event): |
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""" |
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Handles the event. |
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""" |
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for predicate in self.predicates: |
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if not predicate(event): |
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return False |
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else: |
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return True |
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def __eq__(self, other): |
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if isinstance(other, And): |
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if len(self.predicates) != len(other.predicates): |
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return False |
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return set(self.predicates) == set(other.predicates) |
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return NotImplemented |
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def __or__(self, other): |
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return Or(self, other) |
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def __and__(self, other): |
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return And(*chain(self.predicates, other.predicates if isinstance(other, And) else (other,))) |
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def __invert__(self): |
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return Not(self) |
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def __hash__(self): |
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return hash(frozenset(self.predicates)) |
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__ror__ = __or__ |
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__rand__ = __and__ |
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class Or(Fields.predicates): |