It is fixed in the last version of NewInspector (on squeaksource).
I removed from ProtoObject the calls to methods defined only in Object. I have to replace the calls by a default behavior: there is no way to inspect inst vars of a subclass of ProtoObject (and not Object).
But NewInspector is designed to be extensible by anyone. For example, take a new class Proxy inheriting from ProtoObject with an instance variable named #object. You can firstly redefine the label redefining the method niLabel in the Proxy class (instance side):
Proxy>>niLabel ^ 'Proxy on: ' , object niLabel
But you can also add a child for inspecting the inst var object with a label beginning by 'Object: ', redefining the method niConfiguration:
Proxy>>niConfiguration ^ super niConfiguration addLast: [:obj | object asNINode label: 'Object: ' , object niLabel; yourself]; yourself
Note that the parameter obj of the block must be written but it is not really used. I must remove it in a next version of NewInspector. Write it and forget it :)
The description (in the right pane) and the icon (between the triangle and the name of a node in the tree) can be also redefined. See the implementors of niLabel, niConfiguration, niDescription and niIcon for examples.
Fréd
"
Bien à toi,
Fréd ---- Frédéric Pluquet Université Libre de Bruxelles (ULB) Assistant http://www.ulb.ac.be/di/fpluquet
2010/5/13 Stéphane Ducasse <stephane.ducasse@inria.fr> http://code.google.com/p/pharo/issues/detail?id=1970
peut etre que si la superclass est pas Object alors instVArNamed: doit etre evite je ne sais pas en fait.
Stef