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flow/actor: add single_sink/single_source retrieval methods

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Sebastien Bourdeauducq 2012-06-16 22:38:16 +02:00
parent f7cac15b34
commit 9228e8a96d
1 changed files with 10 additions and 0 deletions
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10
migen/flow/actor.py
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@ -60,6 +60,16 @@ class Actor:
def sources(self):
return self.filter_endpoints(Source)
def single_sink(self):
eps = self.sinks()
assert(len(eps) == 1)
return eps[0]
def single_source(self):
eps = self.sources()
assert(len(eps) == 1)
return eps[0]
def get_control_fragment(self):
raise NotImplementedError("Actor classes must overload get_control_fragment or get_fragment")