Depth check

docs/TODO.txt

@@ -33,18 +33,18 @@ DONE: Assertion-based test scripts
 DONE: Import/export keywords
 DONE: A way to check the type of a variable (typeOf keyword)
 DONE: slice and dot notation around the builtin _index and _dot functions
+DONE: maximum recursion/function depth
 
 
+TODO: nested compound assignment
+TODO: better sugar for _push and _pop
 TODO: ternary operator
 TODO: Nullish types?
 TODO: hooks on the external libraries, triggered on import
 TODO: standard library
 TODO: external script runner library
 TODO: document how it all works - book?
-TODO: maximum recursion/function depth
 TODO: better API
-TODO: better sugar for _push and _pop
-TODO: nested compound assignment
 TODO: packaging for release?
 
 NOPE: a = b = c = 1;