def vector_default_policy(self, signal, stream_policy, clocked=True, callback=None, auto_slot=False):
"""
Pure vector policy. These inputs have a static value which acts as a default
in the case where there is no event on this input.
"""
self.check_signal(signal)
return PolicyFactory(VectorDefaultPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback,auto_slot)
def merge_nodefault_policy(self, signal, stream_policy,clocked=True,callback=None):
"""
These inputs are merged into wires created by other policies: they never cause
the creation of wires. There is no default from the static value.
"""
self.check_signal(signal)
return PolicyFactory(MergeNoDefaultPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback)
def vector_policy(self, signal, stream_policy, clocked=True, callback=None, auto_slot=False):
"""
Pure vector policy. These inputs dont have a static value (domain is ignored)
and input wires are created only when connected
"""
self.check_signal(signal)
return PolicyFactory(VectorPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback,auto_slot)
def merge_policy(self, signal, stream_policy):
self.check_signal(signal)
return PolicyFactory(ScalarPolicyImpl,
self,
signal,
policy.DefaultStreamPolicy(stream_policy),
merge=True)
def notify_policy(self, signal, stream_policy, notify=None):
self.check_signal(signal)
return PolicyFactory(NotifyScalarPolicyImpl,
self,
signal,
policy.DefaultStreamPolicy(stream_policy),
notify=notify)
def local_policy(self, signal, stream_policy,clocked=True,callback=None):
"""
When unconnected, a root stream is created carrying the static value. When
connected, the static value is disconnected and the input is used in a pure
vector fashion.
"""
self.check_signal(signal)
return PolicyFactory(LocalPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback)
def merge_policy(self, signal, stream_policy,clocked=True,callback=None):
"""
These inputs are merged into wires created by other policies: they never cause
the creation of wires. The static value acts as a global default. connected
signals may act as defaults too.
"""
self.check_signal(signal)
return PolicyFactory(MergePolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback)
def latch_policy(self, signal, stream_policy, clocked=True, callback=None):
"""
These inputs are merged into wires created by other policies: they never cause
the creation of wires. No global default. Merged events will cause the
channel to stay open
"""
self.check_signal(signal)
return PolicyFactory(LatchPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy),clocked,callback)
def nodefault_policy(self,signal,stream_policy):
self.check_signal(signal)
return PolicyFactory(ScalarNoDefaultPolicyImpl,self,signal,policy.DefaultStreamPolicy(stream_policy))