[Pharo-dev] Customizing semantic analysis for AST nodes

Hi, I have two questions about semantic analysis. I’m working with expressions a lot now. And I want to highlight them, but I don’t want to pay attention for undeclared variables. So in terms of analysis it would be nice to know global variables, but I don’t care about having marked others as undeclared. Second thing is more of a disturbing functionality. If you have `ast` variable which is an RBPatternVariableNode and you do `ast doSemanticAnalysis` after that ast may end up being a RBVariableNode. I find this annoying because I don’t expect my object to change just because of an analysis. Uko