static JSBool
gjs_refcount(JSContext *context,
unsigned argc,
jsval *vp)
{
jsval *argv = JS_ARGV(cx, vp);
jsval retval;
JSObject *target_obj;
GObject *obj;
if (!gjs_parse_args(context, "refcount", "o", argc, argv, "object", &target_obj))
return JS_FALSE;
if (!gjs_typecheck_object(context, target_obj,
G_TYPE_OBJECT, JS_TRUE))
return JS_FALSE;
obj = gjs_g_object_from_object(context, target_obj);
if (obj == NULL)
return JS_FALSE;
retval = INT_TO_JSVAL(obj->ref_count);
JS_SET_RVAL(context, vp, retval);
return JS_TRUE;
}
static JSBool
gjs_value_to_g_value_internal(JSContext *context,
jsval value,
GValue *gvalue,
gboolean no_copy)
{
GType gtype;
gtype = G_VALUE_TYPE(gvalue);
if (gtype == 0) {
gtype = gjs_value_guess_g_type(context, value);
if (gtype == G_TYPE_INVALID) {
gjs_throw(context, "Could not guess unspecified GValue type");
return JS_FALSE;
}
gjs_debug_marshal(GJS_DEBUG_GCLOSURE,
"Guessed GValue type %s from JS Value",
g_type_name(gtype));
g_value_init(gvalue, gtype);
}
gjs_debug_marshal(GJS_DEBUG_GCLOSURE,
"Converting jsval to gtype %s",
g_type_name(gtype));
if (gtype == G_TYPE_STRING) {
/* Don't use ValueToString since we don't want to just toString()
* everything automatically
*/
if (JSVAL_IS_NULL(value)) {
g_value_set_string(gvalue, NULL);
} else if (JSVAL_IS_STRING(value)) {
gchar *utf8_string;
if (!gjs_string_to_utf8(context, value, &utf8_string))
return JS_FALSE;
g_value_take_string(gvalue, utf8_string);
} else {
gjs_throw(context,
"Wrong type %s; string expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_CHAR) {
gint32 i;
if (JS_ValueToInt32(context, value, &i) && i >= SCHAR_MIN && i <= SCHAR_MAX) {
g_value_set_schar(gvalue, (signed char)i);
} else {
gjs_throw(context,
"Wrong type %s; char expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_UCHAR) {
guint16 i;
if (JS_ValueToUint16(context, value, &i) && i <= UCHAR_MAX) {
g_value_set_uchar(gvalue, (unsigned char)i);
} else {
gjs_throw(context,
"Wrong type %s; unsigned char expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_INT) {
gint32 i;
if (JS_ValueToInt32(context, value, &i)) {
g_value_set_int(gvalue, i);
} else {
gjs_throw(context,
"Wrong type %s; integer expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_DOUBLE) {
gdouble d;
if (JS_ValueToNumber(context, value, &d)) {
g_value_set_double(gvalue, d);
} else {
gjs_throw(context,
"Wrong type %s; double expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_FLOAT) {
gdouble d;
if (JS_ValueToNumber(context, value, &d)) {
g_value_set_float(gvalue, d);
} else {
gjs_throw(context,
"Wrong type %s; float expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_UINT) {
guint32 i;
if (JS_ValueToECMAUint32(context, value, &i)) {
g_value_set_uint(gvalue, i);
} else {
gjs_throw(context,
"Wrong type %s; unsigned integer expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (gtype == G_TYPE_BOOLEAN) {
JSBool b;
/* JS_ValueToBoolean() pretty much always succeeds,
* which is maybe surprising sometimes, but could
* be handy also...
*/
if (JS_ValueToBoolean(context, value, &b)) {
g_value_set_boolean(gvalue, b);
} else {
gjs_throw(context,
"Wrong type %s; boolean expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (g_type_is_a(gtype, G_TYPE_OBJECT) || g_type_is_a(gtype, G_TYPE_INTERFACE)) {
GObject *gobj;
gobj = NULL;
if (JSVAL_IS_NULL(value)) {
/* nothing to do */
} else if (JSVAL_IS_OBJECT(value)) {
JSObject *obj;
obj = JSVAL_TO_OBJECT(value);
if (!gjs_typecheck_object(context, obj,
gtype, JS_TRUE))
return JS_FALSE;
gobj = gjs_g_object_from_object(context, obj);
} else {
gjs_throw(context,
"Wrong type %s; object %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
g_value_set_object(gvalue, gobj);
} else if (gtype == G_TYPE_STRV) {
if (JSVAL_IS_NULL(value)) {
/* do nothing */
} else if (gjs_object_has_property(context,
JSVAL_TO_OBJECT(value),
"length")) {
jsval length_value;
guint32 length;
if (!gjs_object_require_property(context,
JSVAL_TO_OBJECT(value), NULL,
"length",
&length_value) ||
!JS_ValueToECMAUint32(context, length_value, &length)) {
gjs_throw(context,
"Wrong type %s; strv expected",
gjs_get_type_name(value));
return JS_FALSE;
} else {
void *result;
char **strv;
if (!gjs_array_to_strv (context,
value,
length, &result))
return JS_FALSE;
/* cast to strv in a separate step to avoid type-punning */
strv = result;
g_value_take_boxed (gvalue, strv);
}
} else {
gjs_throw(context,
"Wrong type %s; strv expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else if (g_type_is_a(gtype, G_TYPE_BOXED)) {
void *gboxed;
gboxed = NULL;
if (JSVAL_IS_NULL(value)) {
/* nothing to do */
} else if (JSVAL_IS_OBJECT(value)) {
JSObject *obj;
obj = JSVAL_TO_OBJECT(value);
if (g_type_is_a(gtype, G_TYPE_ERROR)) {
/* special case GError */
if (!gjs_typecheck_gerror(context, obj, JS_TRUE))
return JS_FALSE;
gboxed = gjs_gerror_from_error(context, obj);
} else {
/* First try a union, if that fails,
assume a boxed struct. Distinguishing
which one is expected would require checking
the associated GIBaseInfo, which is not necessary
possible, if e.g. we see the GType without
loading the typelib.
*/
if (gjs_typecheck_union(context, obj,
NULL, gtype, JS_FALSE)) {
gboxed = gjs_c_union_from_union(context, obj);
} else {
if (!gjs_typecheck_boxed(context, obj,
NULL, gtype, JS_TRUE))
return JS_FALSE;
gboxed = gjs_c_struct_from_boxed(context, obj);
}
}
} else {
gjs_throw(context,
"Wrong type %s; boxed type %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
if (no_copy)
g_value_set_static_boxed(gvalue, gboxed);
else
g_value_set_boxed(gvalue, gboxed);
} else if (g_type_is_a(gtype, G_TYPE_VARIANT)) {
GVariant *variant = NULL;
if (JSVAL_IS_NULL(value)) {
/* nothing to do */
} else if (JSVAL_IS_OBJECT(value)) {
JSObject *obj = JSVAL_TO_OBJECT(value);
if (!gjs_typecheck_boxed(context, obj,
NULL, G_TYPE_VARIANT, JS_TRUE))
return JS_FALSE;
variant = gjs_c_struct_from_boxed(context, obj);
} else {
gjs_throw(context,
"Wrong type %s; boxed type %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
g_value_set_variant (gvalue, variant);
} else if (g_type_is_a(gtype, G_TYPE_ENUM)) {
gint64 value_int64;
if (gjs_value_to_int64 (context, value, &value_int64)) {
GEnumValue *v;
/* See arg.c:_gjs_enum_to_int() */
v = g_enum_get_value(G_ENUM_CLASS(g_type_class_peek(gtype)),
(int)value_int64);
if (v == NULL) {
gjs_throw(context,
"%d is not a valid value for enumeration %s",
JSVAL_TO_INT(value), g_type_name(gtype));
return JS_FALSE;
}
g_value_set_enum(gvalue, v->value);
} else {
gjs_throw(context,
"Wrong type %s; enum %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
} else if (g_type_is_a(gtype, G_TYPE_FLAGS)) {
gint64 value_int64;
if (gjs_value_to_int64 (context, value, &value_int64)) {
if (!_gjs_flags_value_is_valid(context, gtype, value_int64))
return JS_FALSE;
/* See arg.c:_gjs_enum_to_int() */
g_value_set_flags(gvalue, (int)value_int64);
} else {
gjs_throw(context,
"Wrong type %s; flags %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
} else if (g_type_is_a(gtype, G_TYPE_PARAM)) {
void *gparam;
gparam = NULL;
if (JSVAL_IS_NULL(value)) {
/* nothing to do */
} else if (JSVAL_IS_OBJECT(value)) {
JSObject *obj;
obj = JSVAL_TO_OBJECT(value);
if (!gjs_typecheck_param(context, obj, gtype, JS_TRUE))
return JS_FALSE;
gparam = gjs_g_param_from_param(context, obj);
} else {
gjs_throw(context,
"Wrong type %s; param type %s expected",
gjs_get_type_name(value),
g_type_name(gtype));
return JS_FALSE;
}
g_value_set_param(gvalue, gparam);
} else if (g_type_is_a(gtype, G_TYPE_GTYPE)) {
GType type;
if (!JSVAL_IS_OBJECT(value)) {
gjs_throw(context, "Wrong type %s; expect a GType object",
gjs_get_type_name(value));
return JS_FALSE;
}
type = gjs_gtype_get_actual_gtype(context, JSVAL_TO_OBJECT(value));
g_value_set_gtype(gvalue, type);
} else if (g_type_is_a(gtype, G_TYPE_POINTER)) {
if (JSVAL_IS_NULL(value)) {
/* Nothing to do */
} else {
gjs_throw(context,
"Cannot convert non-null JS value to G_POINTER");
return JS_FALSE;
}
} else if (JSVAL_IS_NUMBER(value) &&
g_value_type_transformable(G_TYPE_INT, gtype)) {
/* Only do this crazy gvalue transform stuff after we've
* exhausted everything else. Adding this for
* e.g. ClutterUnit.
*/
gint32 i;
if (JS_ValueToInt32(context, value, &i)) {
GValue int_value = { 0, };
g_value_init(&int_value, G_TYPE_INT);
g_value_set_int(&int_value, i);
g_value_transform(&int_value, gvalue);
} else {
gjs_throw(context,
"Wrong type %s; integer expected",
gjs_get_type_name(value));
return JS_FALSE;
}
} else {
gjs_debug(GJS_DEBUG_GCLOSURE, "jsval is number %d gtype fundamental %d transformable to int %d from int %d",
JSVAL_IS_NUMBER(value),
G_TYPE_IS_FUNDAMENTAL(gtype),
g_value_type_transformable(gtype, G_TYPE_INT),
g_value_type_transformable(G_TYPE_INT, gtype));
gjs_throw(context,
"Don't know how to convert JavaScript object to GType %s",
g_type_name(gtype));
return JS_FALSE;
}
return JS_TRUE;
}
