-* unions
-* callbacks and function pointers
-* let impl_Var point to impl_arg, just like decl_var?
\ No newline at end of file
+* think about a better system for EXTVARs, separate \set and \get functions are clunky
+* impl_def_val: allow num_exp
+* fix right recursion of let_exp and set_exp
+* numeral suffixes
+* improve arargs support, currently it's impossible to map e.g. curl_easy_setopt
+* cpp: asm aliasing/redirects