Java can't access methods on created robot

[Doug Blank]

This works:

import Myro;
Myro.makeRobot("Finch");
Myro.setLED("front", "#FF0000");

But this does not:

import Myro;
robot = Myro.makeRobot("Finch");
robot.setLED("front", "#FF0000");
ExecutionError: No method in Object has name 'setLED'

[Doug Blank]

To test without a Finch:

import Myro;
sim = Myro.Simulation();
sim = Myro.makeRobot("SimScribbler", sim);
sim.forward(1, 1);

[Keith O'Hara]

Is this a new thing? Since I created a new set of ikvm-ed java dll's?

[Doug Blank]

Not sure.

[Keith O'Hara]

Shouldn't it be:

import Myro.*;
sim = Myro.Simulation();
sim = Myro.makeRobot("SimScribbler", sim);
sim.forward(1, 1);

In that case I get a similar error to the one in Graphics:

tried to access class cli.Myro$$$003CdoTogether$$003Ec__DynamicSite1 from class cli.Myro

[Doug Blank]

No, this works:

import Myro;
Myro.init("sim");

Something has changed in accessing methods of created objects.

[Keith O'Hara]

I get the error with this as well:

java>>>>> Myro.Simulation tried to access class cli.Myro$$$003CdoTogether$$003Ec__DynamicSite1 from class cli.Myro

[Keith O'Hara]

This example still works:

import cli.Gtk.*;

window = new Window("Title");
window.Show();
button = new Button("Press me!");
button.Show();
window.Add(button);

[Keith O'Hara]

Did the latest .jar and .dll files fix this?

[Doug Blank]

No, I don't think it is related. I think it has to do with Java figuring out the type automatically. For example, this works:

import Myro;
Myro.init("sim");
sim = Myro.getSimulation();
Myro.Robot robot = (Myro.Robot)Myro.makeRobot("SimScribbler", sim);
robot.forward(1,1);

But robot is supposed to be SimScribbler specific, which it is in Python. I guess a limitation of either Java, or of the interpreter.

I think we can close this as just a limitation of the system.

[Keith O'Hara]

OK. This also works:

import Myro;
sim = new Myro.Simulation();
robot = (Myro.Robot)Myro.makeRobot("SimScribbler", sim);
robot.forward(1,1);

[Doug Blank]

Right. As long as it knows how to cast it. I added Myro.getRobotType("SimScribbler") a while back in case we needed it. Not sure what to do with it in Java though...

[Doug Blank]

I don't think anything changed; I think this is how DynamicJava works. It can figure out some types, but not all.

[Doug Blank]

Type in DynamicJava is not resolved as well as it could be.