RobotBuilder Hangs when generating C++ code about robotbuilder

[sciencewhiz]

If you delete the source file for the empty command, does it then generate correctly?

[dravis123]

Yes, I was able to get the file to create when I deleted the other files. I can see that the command in question (ShootSingleBall) does not get the .cpp file updated, the timestamp is older. But the .cpp~, .h, and .h~ files do get new modified timestamps. Is this a file locking problem perhaps where RobotBuilder cannot get write access? It seems odd because this worked many many times in recent days.

[dravis123]

I am going to try a new eclipse/WPI lib install and see if it works then.

[dravis123]

I finally recreated this and found the issue. If you have a parameter preset starting with a number, the generate code hangs/fails with no error messages. In this case, I had "10ft" as a preset, and changed it to TenFt and the code generated fine.

Do you think it would be possible to add validation to these fields or at least an error message when generating code? Could prevent other people from banging their heads against the wall here. I am SW Dev so I don't mind chasing down bugs :-).

[sciencewhiz]

It appears there is already code to handle this condition, I wonder why it didn't work.

RobotBuilder/src/main/java/robotbuilder/data/properties/ParameterDescriptor.java

Lines 76 to 79 in c70bdcd

	public static final boolean isValidParamName(String name) {
	return !reserved.contains(name)
	&& name.matches("^[a-zA-Z_]+\\w*$"); // at least one letter or underscore to start and then any amount of letters, numbers, and underscores
	}

[dravis123]

Thanks for working on this! I'll be sure to put RBuilder through its paces next week... :-)