Cant use defaccessor

[equalsraf]

Hi, I'm trying to use defaccessor to set a getter and setter, any idea if I'm doing something obviously wrong here?

    #[test]
    fn defaccessor_with_closure() {
        let state = ::State::new(::JS_STRICT);
        state.newobject();
        state.newfunction(|js| {
            js.pushnumber(42.0);
        }, "getter", 0);
        state.newfunction(|js| {
            js.pushundefined();
        }, "setter", 1);
        state.defaccessor(-3, "test", ::PropertyAttributes::empty());
        state.getproperty(-1, "test");
    }

backtrace

	thread 'tests::defaccessor_with_closure' panicked at '"TypeError: not a __RustClosure__"', src/lib.rs:243:8
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace
   0: std::sys::imp::backtrace::tracing::imp::unwind_backtrace
             at /checkout/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1: std::sys_common::backtrace::_print
             at /checkout/src/libstd/sys_common/backtrace.rs:71
   2: std::panicking::default_hook::{{closure}}
             at /checkout/src/libstd/sys_common/backtrace.rs:60
             at /checkout/src/libstd/panicking.rs:381
   3: std::panicking::default_hook
             at /checkout/src/libstd/panicking.rs:391
   4: std::panicking::rust_panic_with_hook
             at /checkout/src/libstd/panicking.rs:577
   5: std::panicking::begin_panic
             at /checkout/src/libstd/panicking.rs:538
   6: std::panicking::begin_panic_fmt
             at /checkout/src/libstd/panicking.rs:522
   7: mujs::State::_panic
             at src/lib.rs:243
   8: js_throw
             at mujs/jsrun.c:1221
   9: js_typeerror
             at mujs/jserror.c:102
  10: js_touserdata
             at mujs/jsrun.c:310
  11: mujs::State::_newcfunction_trampoline
             at src/lib.rs:837
  12: jsR_callcfunction
             at mujs/jsrun.c:1031
  13: js_call
             at mujs/jsrun.c:1073
  14: jsR_hasproperty
             at mujs/jsrun.c:522
  15: jsR_getproperty
             at mujs/jsrun.c:534
  16: js_getproperty
             at mujs/jsrun.c:791
  17: mujs::State::getproperty
             at src/lib.rs:726
  18: mujs::tests::defaccessor_with_closure
             at src/lib.rs:2041
  19: <F as test::FnBox<T>>::call_box
             at /checkout/src/libtest/lib.rs:1480
             at /checkout/src/libcore/ops/function.rs:223
             at /checkout/src/libtest/lib.rs:141
  20: __rust_maybe_catch_panic
             at /checkout/src/libpanic_unwind/lib.rs:99

I''m still digging through it but in the call to js_touserdata the object at the top of the stack has a tag of "\001" and the type is userdata.

(gdb) break rust_panic
(...)
(gdb) frame
#7  0x00005555555a2071 in js_touserdata (J=0x7ffff64107c0, idx=-1, tag=0x7ffff640f030 "__RustClosure__")
    at mujs/jsrun.c:310
310		js_typeerror(J, "not a %s(%s)", tag);
(gdb) print v.u.object.type
$30 = JS_CUSERDATA
$34 = {boolean = -163516384, number = 6.9533477290522177e-310, s = {string = 0x7ffff640f020 "\001", length = -163516400}, 
  a = {length = -163516384}, f = {function = 0x7ffff640f020, scope = 0x7ffff640f010}, c = {name = 0x7ffff640f020 "\001", 
    function = 0x7ffff640f010, constructor = 0x0, length = 0}, r = {prog = 0x7ffff640f020, source = 0x7ffff640f010 "\001", 
    flags = 0, last = 0}, iter = {target = 0x7ffff640f020, head = 0x7ffff640f010}, user = {tag = 0x7ffff640f020 "\001", 
    data = 0x7ffff640f010, has = 0x0, put = 0x0, delete = 0x0, finalize = 0x555555571550 <mujs::State::_finalize>}}
(gdb) print v.u.object.u.user.tag
$35 = 0x7ffff640f020 "\001"