Ocaml：語法錯誤

Question

我想弄清楚爲什麼這不起作用，我得到錯誤：語法錯誤。我錯過了一個「;」某處？

let way_tags_to_hashtbl way = 
    let hashtbl = Hashtbl.create 1 in 
    let rec way_tags_to_hashtbl_partial list = match list with 
    | a::list' -> Hashtbl.add hashtbl (a.k, a.v); way_tags_to_hashtbl_partial list' 
    | a::[] -> Hashtbl.add hashtbl (a.k, a.v) 
    | [] -> []; 
    way_tags_to_hashtbl_partial way.wtag; hashtbl 
;; <------ ERROR HERE 

謝謝。

Answer 1

我認爲你缺少一個in大約兩行了：

let way_tags_to_hashtbl way = 
    let hashtbl = Hashtbl.create 1 in 
    let rec way_tags_to_hashtbl_partial list = match list with 
    | a::list' -> Hashtbl.add hashtbl (a.k, a.v); way_tags_to_hashtbl_partial list' 
    | a::[] -> Hashtbl.add hashtbl (a.k, a.v) 
    | [] -> [] in (* !!! HERE !!! *) 
    way_tags_to_hashtbl_partial way.wtag; hashtbl 
;; 

我沒有ocaml的本機上安裝，無法檢查...