Except that `obj.class` gets the class for the object, instead of `get(obj, "class")` or `obj["class"]`. So many little special cases in Groovy's huge grammar,

Except that `obj.class` gets the class for the object, instead of `get(obj, "class")` or `obj["class"]`. So many little special cases in Groovy's huge grammar, which is still written in Antlr 2.x when both Antlr 3 and 4 shipped long ago.