def _instantiate_control_signal_type(self, gating_signal_spec, context):
"""Instantiate actual ControlSignal, or subclass if overridden"""
from psyneulink.core.components.ports.port import _instantiate_port
from psyneulink.core.components.projections.projection import ProjectionError
allocation_parameter_default = self.parameters.gating_allocation.default_value
gating_signal = _instantiate_port(port_type=GatingSignal,
owner=self,
variable=self.default_allocation # User specified value
or allocation_parameter_default, # Parameter default
reference_value=allocation_parameter_default,
modulation=self.modulation,
port_spec=gating_signal_spec,
context=context)
if not type(gating_signal) in convert_to_list(self.outputPortTypes):
raise ProjectionError(f'{type(gating_signal)} inappropriate for {self.name}')
return gating_signal
def _instantiate_sender(self, sender, params=None, context=None):
"""Check that sender is not a process and that, if specified as a Mechanism, it is a GatingMechanism
"""
# A Process can't be the sender of a GatingProjection
if isinstance(sender, Process_Base):
raise ProjectionError(
"PROGRAM ERROR: attempt to add a {} from a Process {0} "
"to a Mechanism {0} in pathway list".format(
GATING_PROJECTION, self.name, sender.name))
# If sender is specified as a Mechanism, validate that it is a GatingMechanism
if isinstance(sender, Mechanism):
if not isinstance(sender, GatingMechanism):
raise GatingProjectionError(
"Mechanism specified as sender for {} ({}) must be a {} (but it is a {})"
.format(GATING_MECHANISM, self.name, sender.name,
sender.__class__.__name__))
# Call super to instantiate sender
super()._instantiate_sender(sender, context=context)
def _instantiate_sender(self, sender, params=None, context=None):
"""Check if DefaultController is being assigned and if so configure it for the requested ControlProjection
If self.sender is a Mechanism, re-assign to <Mechanism>.outputPort
Insure that sender.value = self.defaults.variable
This method overrides the corresponding method of Projection, before calling it, to check if the
DefaultController is being assigned as sender and, if so:
- creates projection-dedicated inputPort and outputPort in DefaultController
- puts them in DefaultController's input_ports and outputPorts attributes
- lengthens variable of DefaultController to accommodate the ControlProjection
- updates value of the DefaultController (in response to the new variable)
Notes:
* the default function of the DefaultControlMechanism simply maps the inputPort value to the outputPort
* the params arg is assumed to be a dictionary of params for the ControlSignal of the ControlMechanism
:return:
"""
# A Process can't be the sender of a ControlMechanism
if isinstance(sender, Process_Base):
raise ProjectionError(
"PROGRAM ERROR: attempt to add a ControlProjection from a Process {0} "
"to a Mechanism {0} in pathway list".format(self.name, sender.name)
)
# If sender is specified as a Mechanism, validate that it is a ControlMechanism
if isinstance(sender, Mechanism):
# If sender is a ControlMechanism, call it to instantiate its ControlSignal projection
if not isinstance(sender, ControlMechanism):
raise ControlProjectionError(
"Mechanism specified as sender for {} ({}) must be a "
"ControlMechanism (but it is a {})".format(
self.name, sender.name, sender.__class__.__name__
)
)
# Call super to instantiate sender
super()._instantiate_sender(sender, context=context)
def _instantiate_receiver(self, context=None):
"""Determine matrix needed to map from sender to receiver
Assign specification to self.matrix_spec attribute
Assign matrix to self.matrix attribute
"""
self.reshapedWeightMatrix = False
# Get sender and receiver lengths
# Note: if either is a scalar, manually set length to 1 to avoid TypeError in call to len()
try:
mapping_input_len = len(self.defaults.variable)
except TypeError:
mapping_input_len = 1
try:
receiver_len = self.receiver.socket_width
except TypeError:
receiver_len = 1
# Compare length of MappingProjection output and receiver's variable to be sure matrix has proper dimensions
try:
mapping_output_len = len(self.defaults.value)
except TypeError:
mapping_output_len = 1
matrix_spec = self.defaults.matrix
if (type(matrix_spec) == str and
matrix_spec == AUTO_ASSIGN_MATRIX):
if mapping_input_len == receiver_len:
matrix_spec = IDENTITY_MATRIX
else:
matrix_spec = FULL_CONNECTIVITY_MATRIX
# Length of the output of the Projection doesn't match the length of the receiving InputPort
# so consider reshaping the matrix
if mapping_output_len != receiver_len:
if 'projection' in self.name or 'Projection' in self.name:
projection_string = ''
else:
projection_string = 'projection'
if all(string in self.name for string in {'from', 'to'}):
states_string = ''
else:
states_string = "from \'{}\' OuputState of \'{}\' to \'{}\'".format(self.sender.name,
self.sender.owner.name,
self.receiver.owner.name)
if not isinstance(matrix_spec, str):
# if all(string in self.name for string in {'from', 'to'}):
raise ProjectionError("Width ({}) of the {} of \'{}{}\'{} "
"does not match the length of its \'{}\' InputPort ({})".
format(mapping_output_len,
VALUE,
self.name,
projection_string,
states_string,
self.receiver.name,
receiver_len))
elif matrix_spec == IDENTITY_MATRIX or matrix_spec == HOLLOW_MATRIX:
# Identity matrix is not reshapable
raise ProjectionError("Output length ({}) of \'{}{}\' from {} to Mechanism \'{}\'"
" must equal length of it InputPort ({}) to use {}".
format(mapping_output_len,
self.name,
projection_string,
self.sender.name,
self.receiver.owner.name,
receiver_len,
matrix_spec))
else:
# Flag that matrix is being reshaped
self.reshapedWeightMatrix = True
if self.prefs.verbosePref:
print("Length ({}) of the output of {}{} does not match the length ({}) "
"of the InputPort for the receiver {}; the width of the matrix (number of columns); "
"the width of the matrix (number of columns) will be adjusted to accomodate the receiver".
format(mapping_output_len,
self.name,
projection_string,
receiver_len,
self.receiver.owner.name))
self.parameters.matrix._set(
get_matrix(matrix_spec, mapping_input_len, receiver_len, context=context),
context
)
# Since matrix shape has changed, output of self.function may have changed, so update value
self._instantiate_value(context=context)
super()._instantiate_receiver(context=context)