public Node gettable(Token token) {
switch (token.getType()) {
case Tokens.kSELF:
return new SelfNode(token.getPosition());
case Tokens.kNIL:
return new NilNode(token.getPosition());
case Tokens.kTRUE:
return new TrueNode(token.getPosition());
case Tokens.kFALSE:
return new FalseNode(token.getPosition());
case Tokens.k__FILE__: