def testValidEval(expression, scope, sem):
"""
Reports an error in the model if a NameError is raised while
evaluating 'expression'.
"""
env = createDummyEnvironment(scope)
try:
safeEval(expression, env)
except Exception as e:
if isinstance(e, NameError):
reportError(str(e), sem)
def setSpeed_callback(data):
global gModel
## Flatten into tuples
angular = (data.angular.x, data.angular.y, data.angular.z)
linear = (data.linear.x, data.linear.y, data.linear.z)
env = dict()
env["angular"] = angular
env["linear"] = linear
env['angular'] = rdis.safeEval('<angular[0]>', env)
env['linear'] = rdis.safeEval('<linear[0]>', env)
gModel.callDomainInterface('set_velocity', env)
def publish_hitObject(rdisMsg, pub):
env = dict()
## Generated initializations from model.
env['distance'] = rdisMsg['distance']
## Generated mappings to ROS bool from any domain adapter of RDIS.
env['data'] = rdis.safeEval('<distance == 0>', env)
## Statements above should have initialized env['data']
pub.publish(Bool( env['data'] ))
def testType(initValue, ptype, semObj):
"""
Reports error if initValue does not safeEval() to a Python type which
corresponds to the RDIS type ptype.
"""
if initValue == "":
return
value = None
try:
value = safeEval(initValue, dict())
except Exception as e:
reportError(str(e), semObj)
return
targetType = mapType(ptype)
if not isinstance(value, eval(targetType)):
reportError(
"Invalid type. Evaluated Python type '{}' but wanted '{}'.".format(repr(type(value)), repr(targetType)),
semObj,
)
