gistfile1.ml

(* defines the Ast.binding for a function of form:
let fun_name ?(opt_arg1) ?(opt_arg2) final_ident = function_body ...
*)
let function_with_label_args _loc ~fun_name ~final_ident ~function_body ~return_type opt_args =
   let opt_args = opt_args @ [ <:patt< $lid:final_ident$ >> ] in
   let rec fn _loc = function (* could lose _loc and use List.fold_right *)
   |hd::tl -> <:expr< function $hd$ -> $fn _loc tl$ >>
   |[] -> <:expr< ( $function_body$ : $return_type$ ) >>
   in
   <:binding< $lid:fun_name$ = $fn _loc opt_args$ >>