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|
(* Js_of_ocaml compiler
* http://www.ocsigen.org/js_of_ocaml/
* Copyright (C) 2017 Hugo Heuzard
* Copyright (C) 2019 Ty Overby
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, with linking exception;
* either version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*)
(* https://github.com/ocsigen/js_of_ocaml/issues/400 *)
(* https://github.com/ocsigen/js_of_ocaml/pull/402 *)
let%expect_test _ =
Util.compile_and_run
{|
exception A
exception B of int
let a_exn () = raise A
(* Make sure that [a] doesn't look constant *)
let a () = if Random.int 1 + 1 = 0 then 2 else 4
let b_exn () = raise (B 2)
(* https://github.com/ocsigen/js_of_ocaml/issues/400
* match .. with exception is no compiled properly *)
let () =
assert (
try
match a () with
| exception (A | B _) -> true
| _n -> b_exn ()
with B _ -> true);
print_endline "Success!"
|};
[%expect "Success!"]
open Util
let%expect_test "static eval of string get" =
let program =
compile_and_parse
{|
exception A of int
let fun1 () =
match Random.int 2 with
| 0 as i | exception A (2 as i) -> i
| i -> i+1
| exception A i -> i+2
let fun2 () =
match Random.int 2 with
| 0 as i | exception A (2 as i) -> i
| i -> i+1
|}
in
print_fun_decl program (Some "fun1");
print_fun_decl program (Some "fun2");
[%expect
{|
function fun1(param){
a:
{
try{var i$1 = caml_call1(Stdlib_Random[5], 2);}
catch(_e_){
var _d_ = caml_wrap_exception(_e_);
if(_d_[1] !== A) throw caml_maybe_attach_backtrace(_d_, 0);
var i = _d_[2];
if(2 !== i) return i + 2 | 0;
var i$0 = i;
break a;
}
if(0 !== i$1) return i$1 + 1 | 0;
var i$0 = i$1;
}
return i$0;
}
//end
function fun2(param){
a:
{
try{var i$0 = caml_call1(Stdlib_Random[5], 2);}
catch(_c_){
var _a_ = caml_wrap_exception(_c_);
if(_a_[1] === A){var _b_ = _a_[2]; if(2 === _b_){var i = _b_; break a;}}
throw caml_maybe_attach_backtrace(_a_, 0);
}
if(0 !== i$0) return i$0 + 1 | 0;
var i = i$0;
}
return i;
}
//end |}]
|
