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Make sure Processor is is given at least one EventHandler

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This commit is contained in:
Christophe Bedard 2019-12-31 13:20:56 -05:00
parent 0ceea3025c
commit b9e15aac41
1 changed files with 2 additions and 0 deletions
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2
tracetools_analysis/tracetools_analysis/processor/__init__.py
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@ -272,6 +272,8 @@ class Processor():
:param kwargs: the parameters to pass on to new handlers :param kwargs: the parameters to pass on to new handlers
""" """
self._initial_handlers = list(handlers) self._initial_handlers = list(handlers)
if len(self._initial_handlers) == 0:
raise RuntimeError('Must provide at least one handler!')
self._expanded_handlers = self._expand_dependencies(*handlers, **kwargs) self._expanded_handlers = self._expand_dependencies(*handlers, **kwargs)
self._handler_multimap = self._get_handler_maps(self._expanded_handlers) self._handler_multimap = self._get_handler_maps(self._expanded_handlers)
self._register_with_handlers(self._expanded_handlers) self._register_with_handlers(self._expanded_handlers)