def resolve_port_type(port_types, port_spec):
port_types_set = set(p for p in port_types if p is not None)
was_set = False
if port_spec.port_type is not None:
port_types_set.add(port_spec.port_type)
if len(port_types_set) == 1:
port_spec.port_type = next(iter(port_types_set))
was_set = True
elif len(port_types_set) == 2:
if 'basic:Float' in port_types_set and \
'basic:Integer' in port_types_set:
port_spec.port_type = 'basic:Float'
was_set = True
elif 'basic:List' in port_types_set:
port_spec.port_type = 'basic:List'
base_name = port_spec.name
port_spec.name = base_name + "Sequence"
port_types_set.discard('basic:List')
alternate_spec = \
AlternatePortSpec(name=base_name + "Scalar",
port_type=next(iter(port_types_set)))
port_spec.alternate_specs.append(alternate_spec)
was_set = True
if not was_set:
if "color" in port_spec.name:
port_spec.port_type = "basic:Color"
port_spec.translations = "translate_color"
elif port_spec.name == "x":
port_spec.port_type = "basic:List"
elif port_spec.name == "y":
port_spec.port_type = "basic:List"
else:
port_spec.port_type = None
