Bug when calling lineAt or xlineAt on a NodeProxy

[hbeere]

The method fails when I call it. Tracing the bug, xlineAt() calls performAtControl(), where at line 131 there is this code:

keys.do { arg key, i;
    var val = nodeMap.settings[key];
    val !? {
        val = val.getValue;
        val !? { startLevels[i] = val };
        bundle = bundle.addAll([key, ctlIndex + i]);
    }
};

"settings" doesn't exist on nodeMap, so this fails. This is my fix:

keys.do { arg key, i;
    var val = nodeMap.at(key);      // here is the bug fix
    val !? {
        // val = val.getValue;      // get rid of this line, too
        val !? { startLevels[i] = val };
        bundle = bundle.addAll([key, ctlIndex + i]);
    }
};

[adcxyz]

@hbeere - thanks for the proposal, your fix is an improvement!

I did some more tests which reveal more related problems,
@telephon, could you take a look?

Ndef(\x).clear;

Ndef(\x, { SinOsc.ar(\freq.kr(200) + [0, 0.2]) * 0.1 }).play;

Ndef(\x).set(\freq, 400);
Ndef(\x).set(\freq, 600);

Ndef(\x).lineAt(\freq, 800, 1); // goes from resetted value 200 to 800
Ndef(\x).xlineAt(\freq, 300, 1); // goes from 

//// issue 1: 
Ndef(\x).unset(\freq); // does not go back to 200
Ndef(\x).xlineAt(\freq, 400, 1); // but this goes from default val 200 to 400

// issue 2: fails when control was mapped:
Ndef(\f, { SinOsc.kr(3).range(200, 500) });
Ndef(\x).play.set(\freq, Ndef(\f));
// stays on sinosc and only jumps to goal at the end
Ndef(\x).lineAt(\freq, 500, 1);


// issue 3: lineAt, xLineAt do not work for array values
// set does work for array values:
Ndef(\x, { SinOsc.ar(\freq.kr([200, 300])) * 0.1 }).play;
Ndef(\x).set(\freq, [400, 500]);
Ndef(\x).set(\freq, [600, 700]);

// only sets the first value, second stays where it is:
Ndef(\x).lineAt(\freq, [800, 900], 1); 
Ndef(\x).xlineAt(\freq, 300, 1); 

/// issue 4: mapping an ndef control to a multichannel bus does not work
b = Bus.control(s, 2);
b.set(300, 400);
b.get;
Ndef(\x).set(\freq, [200, 300]).play;
Ndef(\x).set(\freq, b).play; // only sets one value, not two?