def start_gate(self, name, args, qubits, nested_scope=None):
"""Begin a custom gate.
name is name string.
args is list of Node expression objects.
qubits is list of (regname, idx) tuples.
nested_scope is a list of dictionaries mapping expression variables
to Node expression objects in order of increasing nesting depth.
"""
if self.listen and name not in self.basis \
and self.gates[name]["opaque"]:
raise BackendError("opaque gate %s not in basis" % name)
if self.listen and name in self.basis:
self.in_gate = name
self.listen = False
qubit_indices = [self._qubit_order_internal.get(qubit)
for qubit in qubits]
self.circuit['instructions'].append({
'name': name,
# TODO: keep these real for now, until a later time
'params': list(map(lambda x: float(x.real(nested_scope)),
args)),
'texparams': list(map(lambda x:
x.latex(prec=8,
nested_scope=nested_scope),
args)),
'qubits': qubit_indices,
})
self._add_condition()
def start_gate(self,
name,
args,
qubits,
nested_scope=None,
extra_fields=None):
if self.listen and name not in self.basis \
and self.gates[name]["opaque"]:
raise BackendError("opaque gate %s not in basis" % name)
if self.listen and name in self.basis:
self.in_gate = name
self.listen = False
qubit_indices = [
self._qubit_order_internal.get(qubit) for qubit in qubits
]
gate_instruction = {
'name':
name,
# TODO: keep these real for now, until a later time
'params':
list(map(lambda x: float(x.real(nested_scope)), args)),
'texparams':
list(
map(lambda x: x.latex(prec=8, nested_scope=nested_scope),
args)),
'qubits':
qubit_indices,
}
if extra_fields is not None:
gate_instruction.update(extra_fields)
self.circuit['instructions'].append(gate_instruction)
self._add_condition()