Wow!! Greg, this is simple an incredible answer. Very useful information, thank you again.
I was scrapping little bits of the information you have posted on your mail on my own, but it is way more clear now. It will take a while for me to process all this information. One of the things I realized about variables is that they are not a hierarchy but a network. So in order to make a graphical treeview that in independent of the back end code it seems I need to do little tricks. Imagine we have an structure parent, parent references children, but each children also references their parent, so we have circular references or loop references. The same could happen if we use double linked chain list , with each node pointing to next node but also to the last one. Now I want to represent the hierarchical structure of the variables in a DataSource(the model of the data in a ModelViewContoller design) that a viewcontroller is going to represent in the GUI. The viewcontroller knows nothing about SBData or any other lldb code, which makes porting(and maintaining) to other GUIs like Qt later much easier. So for generating this Data Model we load the frame variable parent* as an SBValue, we dereference the pointers with each of their children, now we continue with each children and we find the reference to the parent again, so if we continue it will never end, and the three will be infinite. So for every reference I need some way of looking at the other references in the in process tree, and if already there stop there. But I suppose the people of lldb faced this problem before I did and you have already solved it somehow. Did you? Anyway,like with Frankenstein, the thing is finally taking shape and soon will get alive. The possibilities lldb bring look out of this world. Dreams like creating a video of the evolution of data structures while the program become possible, making possible to see your program from other perspectives and using parts of your brain that monotone text atrophies is within reach now, something you could almost touch now. _______________________________________________ lldb-dev mailing list lldb-dev@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
