Пример #1
0
void PushWeakObject(duk_context* ctx, Object* object)
{
    if (!object)
    {
        duk_push_null(ctx);
        return;
    }

    duk_push_heap_stash(ctx);

    // Check if the wrapper for the object already exists in stash
    // This is required so that comparisons of object references (e.g. against the me property) work properly
    if (duk_has_prop_index(ctx, -1, (size_t)object))
    {
        duk_get_prop_index(ctx, -1, (size_t)object);
        WeakPtr<Object>* oldPtr = GetWeakPtr(ctx, -1);
        if (oldPtr && oldPtr->Get() == object)
        {
            duk_remove(ctx, -2); // Remove stash
            return;
        }
        else
            duk_pop(ctx); // Valid existing wrapper not found
    }

    duk_push_object(ctx);
    WeakPtr<Object>* ptr = new WeakPtr<Object>(object);
    duk_push_pointer(ctx, ptr);
    duk_put_prop_string(ctx, -2, "\xff""weak");
    duk_push_c_function(ctx, WeakPtr_Finalizer, 1);
    duk_set_finalizer(ctx, -2);

    // Set prototype. If not found, use base class prototype (e.g. IComponent)
    duk_get_global_string(ctx, object->GetTypeName().CString());
    if (!duk_is_object(ctx, -1))
    {
        duk_pop(ctx);
        duk_get_global_string(ctx, object->GetTypeInfo()->GetBaseTypeInfo()->GetTypeName().CString());
    }
    duk_get_prop_string(ctx, -1, "prototype");
    duk_set_prototype(ctx, -3);
    duk_pop(ctx);

    // Proxied property access handling for scene, entity & component
    if (object->GetType() == Scene::GetTypeStatic())
        SetupProxy(ctx, SceneProxyFunctions);
    if (object->GetType() == Entity::GetTypeStatic())
        SetupProxy(ctx, EntityProxyFunctions);
    else if (dynamic_cast<IComponent*>(object))
        SetupProxy(ctx, ComponentProxyFunctions);

    // Store to stash
    duk_dup(ctx, -1);
    duk_put_prop_index(ctx, -3, (size_t)object);
    duk_remove(ctx, -2); // Remove stash
}
Пример #2
0
/* duk_has_prop_index(), DUK_INVALID_INDEX */
static duk_ret_t test_3c(duk_context *ctx) {
	duk_ret_t rc;

	prep(ctx);

	rc = duk_has_prop_index(ctx, DUK_INVALID_INDEX, 123);
	printf("obj[123] -> rc=%d\n", (int) rc);

	printf("final top: %ld\n", (long) duk_get_top(ctx));
	return 0;
}
Пример #3
0
/* duk_has_prop_index(), success cases */
static duk_ret_t test_3a(duk_context *ctx) {
	duk_ret_t rc;

	prep(ctx);

	rc = duk_has_prop_index(ctx, 0, 31337);
	printf("obj[31337] -> rc=%d\n", (int) rc);

	rc = duk_has_prop_index(ctx, 0, 123);
	printf("obj[123] -> rc=%d\n", (int) rc);

	rc = duk_has_prop_index(ctx, 1, 31337);
	printf("arr[31337] -> rc=%d\n", (int) rc);

	rc = duk_has_prop_index(ctx, 1, 2);
	printf("arr[2] -> rc=%d\n", (int) rc);

	printf("final top: %ld\n", (long) duk_get_top(ctx));
	return 0;
}
Пример #4
0
/* duk_has_prop_index(), DUK_INVALID_INDEX */
int test_3c(duk_context *ctx) {
	int rc;

	prep(ctx);

	rc = duk_has_prop_index(ctx, DUK_INVALID_INDEX, 123);
	printf("obj[123] -> rc=%d\n", rc);

	printf("final top: %d\n", duk_get_top(ctx));
	return 0;
}
Пример #5
0
/* duk_has_prop_index(), success cases */
int test_3a(duk_context *ctx) {
	int rc;

	prep(ctx);

	rc = duk_has_prop_index(ctx, 0, 31337);
	printf("obj[31337] -> rc=%d\n", rc);

	rc = duk_has_prop_index(ctx, 0, 123);
	printf("obj[123] -> rc=%d\n", rc);

	rc = duk_has_prop_index(ctx, 1, 31337);
	printf("arr[31337] -> rc=%d\n", rc);

	rc = duk_has_prop_index(ctx, 1, 2);
	printf("arr[2] -> rc=%d\n", rc);

	printf("final top: %d\n", duk_get_top(ctx));
	return 0;
}
Пример #6
0
/* duk_has_prop_index(), invalid index */
static duk_ret_t test_3b(duk_context *ctx, void *udata) {
	duk_ret_t rc;

	(void) udata;

	prep(ctx);

	rc = duk_has_prop_index(ctx, 234, 123);
	printf("obj[123] -> rc=%d\n", (int) rc);

	printf("final top: %ld\n", (long) duk_get_top(ctx));
	return 0;
}
Пример #7
0
static duk_ret_t test_func(duk_context *ctx, void *udata) {
	(void) udata;

	if (ctx) {
		printf("dummy - return here\n"); fflush(stdout);
		return 0;
	}

	/* Up-to-date for Duktape 1.3.0, alphabetical order:
	 * $ cd website/api; ls *.yaml
	 */

	(void) duk_alloc_raw(ctx, 0);
	(void) duk_alloc(ctx, 0);
	(void) duk_base64_decode(ctx, 0);
	(void) duk_base64_encode(ctx, 0);
	(void) duk_buffer_to_string(ctx, 0);
	(void) duk_call_method(ctx, 0);
	(void) duk_call_prop(ctx, 0, 0);
	(void) duk_call(ctx, 0);
	(void) duk_char_code_at(ctx, 0, 0);
	(void) duk_check_stack_top(ctx, 0);
	(void) duk_check_stack(ctx, 0);
	(void) duk_check_type_mask(ctx, 0, 0);
	(void) duk_check_type(ctx, 0, 0);
	(void) duk_compact(ctx, 0);
	(void) duk_compile_lstring_filename(ctx, 0, "dummy", 0);
	(void) duk_compile_lstring(ctx, 0, "dummy", 0);
	(void) duk_compile_string_filename(ctx, 0, "dummy");
	(void) duk_compile_string(ctx, 0, "dummy");
	(void) duk_compile(ctx, 0);
	(void) duk_concat(ctx, 0);
	(void) duk_config_buffer(ctx, 0, NULL, 0);
	(void) duk_copy(ctx, 0, 0);
	(void) duk_create_heap_default();
	(void) duk_create_heap(NULL, NULL, NULL, NULL, NULL);
	(void) duk_debugger_attach(ctx, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
	(void) duk_debugger_cooperate(ctx);
	(void) duk_debugger_detach(ctx);
	(void) duk_debugger_notify(ctx, 0);
	(void) duk_debugger_pause(ctx);
	(void) duk_decode_string(ctx, 0, NULL, NULL);
	(void) duk_def_prop(ctx, 0, 0);
	(void) duk_del_prop_index(ctx, 0, 0);
	(void) duk_del_prop_string(ctx, 0, "dummy");
	(void) duk_del_prop(ctx, 0);
	(void) duk_destroy_heap(ctx);
	(void) duk_dump_function(ctx);
	(void) duk_dup_top(ctx);
	(void) duk_dup(ctx, 0);
	(void) duk_enum(ctx, 0, 0);
	(void) duk_equals(ctx, 0, 0);
	duk_error_va(ctx, 0, NULL, NULL);
	duk_error(ctx, 0, "dummy");  /* (void) cast won't work without variadic macros */
	(void) duk_eval_lstring_noresult(ctx, "dummy", 0);
	(void) duk_eval_lstring(ctx, "dummy", 0);
	(void) duk_eval_noresult(ctx);
	(void) duk_eval_string_noresult(ctx, "dummy");
	(void) duk_eval_string(ctx, "dummy");
	(void) duk_eval(ctx);
	(void) duk_fatal(ctx, "dummy");
	(void) duk_free_raw(ctx, NULL);
	(void) duk_free(ctx, NULL);
	(void) duk_gc(ctx, 0);
	(void) duk_get_boolean(ctx, 0);
	(void) duk_get_buffer_data(ctx, 0, NULL);
	(void) duk_get_buffer(ctx, 0, NULL);
	(void) duk_get_c_function(ctx, 0);
	(void) duk_get_context(ctx, 0);
	(void) duk_get_current_magic(ctx);
	(void) duk_get_error_code(ctx, 0);
	(void) duk_get_finalizer(ctx, 0);
	(void) duk_get_global_string(ctx, 0);
	(void) duk_get_heapptr(ctx, 0);
	(void) duk_get_int(ctx, 0);
	(void) duk_get_length(ctx, 0);
	(void) duk_get_lstring(ctx, 0, NULL);
	(void) duk_get_magic(ctx, 0);
	(void) duk_get_memory_functions(ctx, NULL);
	(void) duk_get_number(ctx, 0);
	(void) duk_get_pointer(ctx, 0);
	(void) duk_get_prop_index(ctx, 0, 0);
	(void) duk_get_prop_string(ctx, 0, "dummy");
	(void) duk_get_prop(ctx, 0);
	(void) duk_get_prototype(ctx, 0);
	(void) duk_get_string(ctx, 0);
	(void) duk_get_top_index(ctx);
	(void) duk_get_top(ctx);
	(void) duk_get_type_mask(ctx, 0);
	(void) duk_get_type(ctx, 0);
	(void) duk_get_uint(ctx, 0);
	(void) duk_has_prop_index(ctx, 0, 0);
	(void) duk_has_prop_string(ctx, 0, "dummy");
	(void) duk_has_prop(ctx, 0);
	(void) duk_hex_decode(ctx, 0);
	(void) duk_hex_encode(ctx, 0);
	(void) duk_insert(ctx, 0);
	(void) duk_instanceof(ctx, 0, 0);
	(void) duk_is_array(ctx, 0);
	(void) duk_is_boolean(ctx, 0);
	(void) duk_is_bound_function(ctx, 0);
	(void) duk_is_buffer(ctx, 0);
	(void) duk_is_callable(ctx, 0);
	(void) duk_is_c_function(ctx, 0);
	(void) duk_is_constructor_call(ctx);
	(void) duk_is_dynamic_buffer(ctx, 0);
	(void) duk_is_ecmascript_function(ctx, 0);
	(void) duk_is_error(ctx, 0);
	(void) duk_is_eval_error(ctx, 0);
	(void) duk_is_fixed_buffer(ctx, 0);
	(void) duk_is_function(ctx, 0);
	(void) duk_is_lightfunc(ctx, 0);
	(void) duk_is_nan(ctx, 0);
	(void) duk_is_null_or_undefined(ctx, 0);
	(void) duk_is_null(ctx, 0);
	(void) duk_is_number(ctx, 0);
	(void) duk_is_object_coercible(ctx, 0);
	(void) duk_is_object(ctx, 0);
	(void) duk_is_pointer(ctx, 0);
	(void) duk_is_primitive(ctx, 0);
	(void) duk_is_range_error(ctx, 0);
	(void) duk_is_reference_error(ctx, 0);
	(void) duk_is_strict_call(ctx);
	(void) duk_is_string(ctx, 0);
	(void) duk_is_syntax_error(ctx, 0);
	(void) duk_is_thread(ctx, 0);
	(void) duk_is_type_error(ctx, 0);
	(void) duk_is_undefined(ctx, 0);
	(void) duk_is_uri_error(ctx, 0);
	(void) duk_is_valid_index(ctx, 0);
	(void) duk_join(ctx, 0);
	(void) duk_json_decode(ctx, 0);
	(void) duk_json_encode(ctx, 0);
	(void) duk_load_function(ctx);
	(void) duk_map_string(ctx, 0, NULL, NULL);
	(void) duk_new(ctx, 0);
	(void) duk_next(ctx, 0, 0);
	(void) duk_normalize_index(ctx, 0);
	(void) duk_pcall_method(ctx, 0);
	(void) duk_pcall_prop(ctx, 0, 0);
	(void) duk_pcall(ctx, 0);
	(void) duk_pcompile_lstring_filename(ctx, 0, "dummy", 0);
	(void) duk_pcompile_lstring(ctx, 0, "dummy", 0);
	(void) duk_pcompile_string_filename(ctx, 0, "dummy");
	(void) duk_pcompile_string(ctx, 0, "dummy");
	(void) duk_pcompile(ctx, 0);
	(void) duk_peval_lstring_noresult(ctx, "dummy", 0);
	(void) duk_peval_lstring(ctx, "dummy", 0);
	(void) duk_peval_noresult(ctx);
	(void) duk_peval_string_noresult(ctx, "dummy");
	(void) duk_peval_string(ctx, "dummy");
	(void) duk_peval(ctx);
	(void) duk_pnew(ctx, 0);
	(void) duk_pop_2(ctx);
	(void) duk_pop_3(ctx);
	(void) duk_pop_n(ctx, 0);
	(void) duk_pop(ctx);
	(void) duk_push_array(ctx);
	(void) duk_push_boolean(ctx, 0);
	(void) duk_push_buffer_object(ctx, 0, 0, 0, 0);
	(void) duk_push_buffer(ctx, 0, 0);
	(void) duk_push_c_function(ctx, NULL, 0);
	(void) duk_push_c_lightfunc(ctx, NULL, 0, 0, 0);
	(void) duk_push_context_dump(ctx);
	(void) duk_push_current_function(ctx);
	(void) duk_push_current_thread(ctx);
	(void) duk_push_dynamic_buffer(ctx, 0);
	(void) duk_push_error_object_va(ctx, 0, NULL, NULL);
	(void) duk_push_error_object(ctx, 0, "dummy");
	(void) duk_push_external_buffer(ctx);
	(void) duk_push_false(ctx);
	(void) duk_push_fixed_buffer(ctx, 0);
	(void) duk_push_global_object(ctx);
	(void) duk_push_global_stash(ctx);
	(void) duk_push_heap_stash(ctx);
	(void) duk_push_heapptr(ctx, NULL);
	(void) duk_push_int(ctx, 0);
	(void) duk_push_lstring(ctx, "dummy", 0);
	(void) duk_push_nan(ctx);
	(void) duk_push_null(ctx);
	(void) duk_push_number(ctx, 0.0);
	(void) duk_push_object(ctx);
	(void) duk_push_pointer(ctx, NULL);
	(void) duk_push_sprintf(ctx, "dummy");
	(void) duk_push_string(ctx, "dummy");
	(void) duk_push_this(ctx);
	(void) duk_push_thread_new_globalenv(ctx);
	(void) duk_push_thread_stash(ctx, NULL);
	(void) duk_push_thread(ctx);
	(void) duk_push_true(ctx);
	(void) duk_push_uint(ctx, 0);
	(void) duk_push_undefined(ctx);
	(void) duk_push_vsprintf(ctx, "dummy", NULL);
	(void) duk_put_function_list(ctx, 0, NULL);
	(void) duk_put_global_string(ctx, NULL);
	(void) duk_put_number_list(ctx, 0, NULL);
	(void) duk_put_prop_index(ctx, 0, 0);
	(void) duk_put_prop_string(ctx, 0, "dummy");
	(void) duk_put_prop(ctx, 0);
	(void) duk_realloc_raw(ctx, NULL, 0);
	(void) duk_realloc(ctx, NULL, 0);
	(void) duk_remove(ctx, 0);
	(void) duk_replace(ctx, 0);
	(void) duk_require_boolean(ctx, 0);
	(void) duk_require_buffer_data(ctx, 0, NULL);
	(void) duk_require_buffer(ctx, 0, NULL);
	(void) duk_require_c_function(ctx, 0);
	(void) duk_require_callable(ctx, 0);
	(void) duk_require_context(ctx, 0);
	(void) duk_require_function(ctx, 0);
	(void) duk_require_heapptr(ctx, 0);
	(void) duk_require_int(ctx, 0);
	(void) duk_require_lstring(ctx, 0, NULL);
	(void) duk_require_normalize_index(ctx, 0);
	(void) duk_require_null(ctx, 0);
	(void) duk_require_number(ctx, 0);
	(void) duk_require_object_coercible(ctx, 0);
	(void) duk_require_pointer(ctx, 0);
	(void) duk_require_stack_top(ctx, 0);
	(void) duk_require_stack(ctx, 0);
	(void) duk_require_string(ctx, 0);
	(void) duk_require_top_index(ctx);
	(void) duk_require_type_mask(ctx, 0, 0);
	(void) duk_require_uint(ctx, 0);
	(void) duk_require_undefined(ctx, 0);
	(void) duk_require_valid_index(ctx, 0);
	(void) duk_resize_buffer(ctx, 0, 0);
	(void) duk_safe_call(ctx, NULL, NULL, 0, 0);
	(void) duk_safe_to_lstring(ctx, 0, NULL);
	(void) duk_safe_to_string(ctx, 0);
	(void) duk_set_finalizer(ctx, 0);
	(void) duk_set_global_object(ctx);
	(void) duk_set_magic(ctx, 0, 0);
	(void) duk_set_prototype(ctx, 0);
	(void) duk_set_top(ctx, 0);
	(void) duk_steal_buffer(ctx, 0, NULL);
	(void) duk_strict_equals(ctx, 0, 0);
	(void) duk_substring(ctx, 0, 0, 0);
	(void) duk_swap_top(ctx, 0);
	(void) duk_swap(ctx, 0, 0);
	(void) duk_throw(ctx);
	(void) duk_to_boolean(ctx, 0);
	(void) duk_to_buffer(ctx, 0, NULL);
	(void) duk_to_defaultvalue(ctx, 0, 0);
	(void) duk_to_dynamic_buffer(ctx, 0, NULL);
	(void) duk_to_fixed_buffer(ctx, 0, NULL);
	(void) duk_to_int32(ctx, 0);
	(void) duk_to_int(ctx, 0);
	(void) duk_to_lstring(ctx, 0, NULL);
	(void) duk_to_null(ctx, 0);
	(void) duk_to_number(ctx, 0);
	(void) duk_to_object(ctx, 0);
	(void) duk_to_pointer(ctx, 0);
	(void) duk_to_primitive(ctx, 0, 0);
	(void) duk_to_string(ctx, 0);
	(void) duk_to_uint16(ctx, 0);
	(void) duk_to_uint32(ctx, 0);
	(void) duk_to_uint(ctx, 0);
	(void) duk_to_undefined(ctx, 0);
	(void) duk_trim(ctx, 0);
	(void) duk_xcopy_top(ctx, NULL, 0);
	(void) duk_xmove_top(ctx, NULL, 0);

	printf("never here\n"); fflush(stdout);
	return 0;
}
Пример #8
0
//duk_bool_t duk_has_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index);
duk_bool_t aperl_duk_has_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index) {
	duk_bool_t ret = duk_has_prop_index(ctx, obj_index, arr_index);
	return ret;
}
Пример #9
0
DUK_INTERNAL duk_ret_t duk_bi_array_prototype_reduce_shared(duk_context *ctx) {
	duk_idx_t nargs;
	duk_bool_t have_acc;
	duk_uint32_t i, len;
	duk_small_int_t idx_step = duk_get_current_magic(ctx);  /* idx_step is +1 for reduce, -1 for reduceRight */

	/* We're a varargs function because we need to detect whether
	 * initialValue was given or not.
	 */
	nargs = duk_get_top(ctx);
	DUK_DDD(DUK_DDDPRINT("nargs=%ld", (long) nargs));

	duk_set_top(ctx, 2);
	len = duk__push_this_obj_len_u32(ctx);
	if (!duk_is_callable(ctx, 0)) {
		goto type_error;
	}

	/* stack[0] = callback fn
	 * stack[1] = initialValue
	 * stack[2] = object (coerced this)
	 * stack[3] = length (not needed, but not popped above)
	 * stack[4] = accumulator
	 */

	have_acc = 0;
	if (nargs >= 2) {
		duk_dup(ctx, 1);
		have_acc = 1;
	}
	DUK_DDD(DUK_DDDPRINT("have_acc=%ld, acc=%!T",
	                     (long) have_acc, (duk_tval *) duk_get_tval(ctx, 3)));

	/* For len == 0, i is initialized to len - 1 which underflows.
	 * The condition (i < len) will then exit the for-loop on the
	 * first round which is correct.  Similarly, loop termination
	 * happens by i underflowing.
	 */

	for (i = (idx_step >= 0 ? 0 : len - 1);
	     i < len;  /* i >= 0 would always be true */
	     i += idx_step) {
		DUK_DDD(DUK_DDDPRINT("i=%ld, len=%ld, have_acc=%ld, top=%ld, acc=%!T",
		                     (long) i, (long) len, (long) have_acc,
		                     (long) duk_get_top(ctx),
		                     (duk_tval *) duk_get_tval(ctx, 4)));

		DUK_ASSERT((have_acc && duk_get_top(ctx) == 5) ||
		           (!have_acc && duk_get_top(ctx) == 4));

		if (!duk_has_prop_index(ctx, 2, (duk_uarridx_t) i)) {
			continue;
		}

		if (!have_acc) {
			DUK_ASSERT_TOP(ctx, 4);
			duk_get_prop_index(ctx, 2, (duk_uarridx_t) i);
			have_acc = 1;
			DUK_ASSERT_TOP(ctx, 5);
		} else {
			DUK_ASSERT_TOP(ctx, 5);
			duk_dup(ctx, 0);
			duk_dup(ctx, 4);
			duk_get_prop_index(ctx, 2, (duk_uarridx_t) i);
			duk_push_u32(ctx, i);
			duk_dup(ctx, 2);
			DUK_DDD(DUK_DDDPRINT("calling reduce function: func=%!T, prev=%!T, curr=%!T, idx=%!T, obj=%!T",
			                     (duk_tval *) duk_get_tval(ctx, -5), (duk_tval *) duk_get_tval(ctx, -4),
			                     (duk_tval *) duk_get_tval(ctx, -3), (duk_tval *) duk_get_tval(ctx, -2),
			                     (duk_tval *) duk_get_tval(ctx, -1)));
			duk_call(ctx, 4);
			DUK_DDD(DUK_DDDPRINT("-> result: %!T", (duk_tval *) duk_get_tval(ctx, -1)));
			duk_replace(ctx, 4);
			DUK_ASSERT_TOP(ctx, 5);
		}
	}

	if (!have_acc) {
		goto type_error;
	}

	DUK_ASSERT_TOP(ctx, 5);
	return 1;

 type_error:
	return DUK_RET_TYPE_ERROR;
}
Пример #10
0
int duk_bi_array_prototype_reduce_shared(duk_context *ctx) {
	int nargs;
	int have_acc;
	int i, len;
	int idx_step = duk_get_magic(ctx);  /* idx_step is +1 for reduce, -1 for reduceRight */

	/* We're a varargs function because we need to detect whether
	 * initialValue was given or not.
	 */
	nargs = duk_get_top(ctx);
	DUK_DDD(DUK_DDDPRINT("nargs=%d", nargs));

	duk_set_top(ctx, 2);
	len = duk__push_this_obj_len_u32(ctx);
	if (!duk_is_callable(ctx, 0)) {
		goto type_error;
	}

	/* stack[0] = callback fn
	 * stack[1] = initialValue
	 * stack[2] = object (coerced this)
	 * stack[3] = length (not needed, but not popped above)
	 * stack[4] = accumulator
	 */

	have_acc = 0;
	if (nargs >= 2) {
		duk_dup(ctx, 1);
		have_acc = 1;
	}
	DUK_DDD(DUK_DDDPRINT("have_acc=%d, acc=%!T", have_acc, duk_get_tval(ctx, 3)));

	for (i = (idx_step >= 0 ? 0 : len - 1);
	     i >= 0 && i < len;
	     i += idx_step) {
		DUK_DDD(DUK_DDDPRINT("i=%d, len=%d, have_acc=%d, top=%d, acc=%!T",
		                     i, len, have_acc, duk_get_top(ctx), duk_get_tval(ctx, 4)));

		DUK_ASSERT((have_acc && duk_get_top(ctx) == 5) ||
		           (!have_acc && duk_get_top(ctx) == 4));

		if (!duk_has_prop_index(ctx, 2, i)) {
			continue;
		}

		if (!have_acc) {
			DUK_ASSERT_TOP(ctx, 4);
			duk_get_prop_index(ctx, 2, i);
			have_acc = 1;
			DUK_ASSERT_TOP(ctx, 5);
		} else {
			DUK_ASSERT_TOP(ctx, 5);
			duk_dup(ctx, 0);
			duk_dup(ctx, 4);
			duk_get_prop_index(ctx, 2, i);
			duk_push_int(ctx, i);  /* FIXME: type */
			duk_dup(ctx, 2);
			DUK_DDD(DUK_DDDPRINT("calling reduce function: func=%!T, prev=%!T, curr=%!T, idx=%!T, obj=%!T",
			                     duk_get_tval(ctx, -5), duk_get_tval(ctx, -4), duk_get_tval(ctx, -3),
			                     duk_get_tval(ctx, -2), duk_get_tval(ctx, -1)));
			duk_call(ctx, 4);
			DUK_DDD(DUK_DDDPRINT("-> result: %!T", duk_get_tval(ctx, -1)));
			duk_replace(ctx, 4);
			DUK_ASSERT_TOP(ctx, 5);
		}
	}

	if (!have_acc) {
		goto type_error;
	}

	DUK_ASSERT_TOP(ctx, 5);
	return 1;

 type_error:
	return DUK_RET_TYPE_ERROR;
}