State

[xanatos]

I'm using

#{ state[someSymbolName] = someValue; }

to memorize new symbols (for example name of new local variables I encounter while parsing). Not sure if this is the "right" way to do it.

I have two problems: it would be efficient to have a

IReadOnlyDictionary<string, object> GetState() => state;

method for helping debugging (at this time I'm using a little reflection to extract the Dictionary), and I think that there should be a RemoveFromState() method in Cursor (or in the this[] setter, if value == null then remove the key instead of setting it to null... The this getter isn't able to distinguish between key not existant and key with value null)