Пример #1
0
void
gjs_define_error_class(JSContext    *context,
                       JSObject     *in_object,
                       GIEnumInfo   *info)
{
    const char *constructor_name;
    GIBoxedInfo *glib_error_info;
    JSObject *prototype, *parent_proto;
    JSObject *constructor;
    Error *priv;

    /* See the comment in gjs_define_boxed_class() for an
     * explanation of how this all works; Error is pretty much the
     * same as Boxed (except that we inherit from GLib.Error).
     */

    constructor_name = g_base_info_get_name( (GIBaseInfo*) info);

    g_irepository_require(NULL, "GLib", "2.0", (GIRepositoryLoadFlags) 0, NULL);
    glib_error_info = (GIBoxedInfo*) g_irepository_find_by_name(NULL, "GLib", "Error");
    parent_proto = gjs_lookup_generic_prototype(context, glib_error_info);
    g_base_info_unref((GIBaseInfo*)glib_error_info);

    if (!gjs_init_class_dynamic(context, in_object,
                                parent_proto,
                                g_base_info_get_namespace( (GIBaseInfo*) info),
                                constructor_name,
                                &gjs_error_class,
                                gjs_error_constructor, 1,
                                /* props of prototype */
                                &gjs_error_proto_props[0],
                                /* funcs of prototype */
                                &gjs_error_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                &gjs_error_constructor_funcs[0],
                                &prototype,
                                &constructor)) {
        gjs_log_exception(context);
        g_error("Can't init class %s", constructor_name);
    }

    GJS_INC_COUNTER(gerror);
    priv = g_slice_new0(Error);
    priv->info = info;
    g_base_info_ref( (GIBaseInfo*) priv->info);
    priv->domain = g_quark_from_string (g_enum_info_get_error_domain(priv->info));

    JS_SetPrivate(prototype, priv);

    gjs_debug(GJS_DEBUG_GBOXED, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype, JS_GetClass(prototype), in_object);

    gjs_define_enum_values(context, constructor, priv->info);
    gjs_define_enum_static_methods(context, constructor, priv->info);
}
Пример #2
0
bool
gjs_define_interface_class(JSContext              *context,
                           JS::HandleObject        in_object,
                           GIInterfaceInfo        *info,
                           GType                   gtype,
                           JS::MutableHandleObject constructor)
{
    Interface *priv;
    const char *constructor_name;
    const char *ns;
    JS::RootedObject prototype(context);

    ns = gjs_get_names_from_gtype_and_gi_info(gtype, (GIBaseInfo *) info,
                                              &constructor_name);

    if (!gjs_init_class_dynamic(context, in_object,
                                JS::NullPtr(),
                                ns,
                                constructor_name,
                                &gjs_interface_class,
                                gjs_interface_constructor, 0,
                                /* props of prototype */
                                &gjs_interface_proto_props[0],
                                /* funcs of prototype */
                                &gjs_interface_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                NULL,
                                &prototype,
                                constructor)) {
        g_error("Can't init class %s", constructor_name);
    }

    GJS_INC_COUNTER(interface);
    priv = g_slice_new0(Interface);
    priv->info = info == NULL ? NULL : g_base_info_ref((GIBaseInfo *) info);
    priv->gtype = gtype;
    priv->vtable = (GTypeInterface *) g_type_default_interface_ref(gtype);
    JS_SetPrivate(prototype, priv);

    /* If we have no GIRepository information, then this interface was defined
     * from within GJS and therefore has no C static methods to be defined. */
    if (priv->info)
        gjs_define_static_methods(context, constructor, priv->gtype, priv->info);

    JS::RootedObject gtype_obj(context,
        gjs_gtype_create_gtype_wrapper(context, priv->gtype));
    JS_DefineProperty(context, constructor, "$gtype", gtype_obj, JSPROP_PERMANENT);

    return true;
}
Пример #3
0
void
gjs_define_param_class(JSContext       *context,
                       JS::HandleObject in_object)
{
    const char *constructor_name;
    JS::RootedObject prototype(context), constructor(context);
    GIObjectInfo *info;

    constructor_name = "ParamSpec";

    if (!gjs_init_class_dynamic(context, in_object, nullptr, "GObject",
                                constructor_name,
                                &gjs_param_class,
                                gjs_param_constructor, 0,
                                /* props of prototype */
                                &gjs_param_proto_props[0],
                                /* funcs of prototype */
                                &gjs_param_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                gjs_param_constructor_funcs,
                                &prototype,
                                &constructor)) {
        g_error("Can't init class %s", constructor_name);
    }

    JS::RootedObject gtype_obj(context,
        gjs_gtype_create_gtype_wrapper(context, G_TYPE_PARAM));
    JS_DefineProperty(context, constructor, "$gtype", gtype_obj, JSPROP_PERMANENT);

    info = (GIObjectInfo*)g_irepository_find_by_gtype(g_irepository_get_default(), G_TYPE_PARAM);
    gjs_object_define_static_methods(context, constructor, G_TYPE_PARAM, info);
    g_base_info_unref( (GIBaseInfo*) info);

    gjs_debug(GJS_DEBUG_GPARAM, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype.get(), JS_GetClass(prototype),
              in_object.get());
}
Пример #4
0
void
gjs_define_param_class(JSContext    *context,
                       JSObject     *in_object)
{
    const char *constructor_name;
    JSObject *prototype;
    jsval value;
    JSObject *constructor;

    constructor_name = "ParamSpec";

    if (!gjs_init_class_dynamic(context, in_object,
                                NULL,
                                "GObject",
                                constructor_name,
                                &gjs_param_class,
                                gjs_param_constructor, 0,
                                /* props of prototype */
                                &gjs_param_proto_props[0],
                                /* funcs of prototype */
                                &gjs_param_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                gjs_param_constructor_funcs,
                                &prototype,
                                &constructor)) {
        g_error("Can't init class %s", constructor_name);
    }

    value = OBJECT_TO_JSVAL(gjs_gtype_create_gtype_wrapper(context, G_TYPE_PARAM));
    JS_DefineProperty(context, constructor, "$gtype", value,
                      NULL, NULL, JSPROP_PERMANENT);

    gjs_debug(GJS_DEBUG_GPARAM, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype, JS_GetClass(prototype), in_object);
}
Пример #5
0
JSBool
gjs_define_fundamental_class(JSContext     *context,
                             JSObject      *in_object,
                             GIObjectInfo  *info,
                             JSObject     **constructor_p,
                             JSObject     **prototype_p)
{
    const char *constructor_name;
    JSObject *prototype;
    jsval value;
    jsid js_constructor_name = JSID_VOID;
    JSObject *parent_proto;
    Fundamental *priv;
    JSObject *constructor;
    GType parent_gtype;
    GType gtype;
    GIFunctionInfo *constructor_info;
    /* See the comment in gjs_define_object_class() for an explanation
     * of how this all works; Fundamental is pretty much the same as
     * Object.
     */

    constructor_name = g_base_info_get_name((GIBaseInfo *) info);
    constructor_info = find_fundamental_constructor(context, info,
                                                    &js_constructor_name);

    gtype = g_registered_type_info_get_g_type (info);
    parent_gtype = g_type_parent(gtype);
    parent_proto = NULL;
    if (parent_gtype != G_TYPE_INVALID)
        parent_proto = gjs_lookup_fundamental_prototype_from_gtype(context,
                                                                   parent_gtype);

    if (!gjs_init_class_dynamic(context, in_object,
                                /* parent prototype JSObject* for
                                 * prototype; NULL for
                                 * Object.prototype
                                 */
                                parent_proto,
                                g_base_info_get_namespace((GIBaseInfo *) info),
                                constructor_name,
                                &gjs_fundamental_instance_class,
                                gjs_fundamental_instance_constructor,
                                /* number of constructor args (less can be passed) */
                                constructor_info != NULL ? g_callable_info_get_n_args((GICallableInfo *) constructor_info) : 0,
                                /* props of prototype */
                                parent_proto ? NULL : &gjs_fundamental_instance_proto_props[0],
                                /* funcs of prototype */
                                parent_proto ? NULL : &gjs_fundamental_instance_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                NULL,
                                &prototype,
                                &constructor)) {
        gjs_log_exception(context);
        g_error("Can't init class %s", constructor_name);
    }

    /* Put the info in the prototype */
    priv = g_slice_new0(Fundamental);
    g_assert(priv != NULL);
    g_assert(priv->info == NULL);
    priv->info = g_base_info_ref((GIBaseInfo *) info);
    priv->gtype = gtype;
    priv->constructor_name = js_constructor_name;
    priv->constructor_info = constructor_info;
    priv->ref_function = g_object_info_get_ref_function_pointer(info);
    g_assert(priv->ref_function != NULL);
    priv->unref_function = g_object_info_get_unref_function_pointer(info);
    g_assert(priv->unref_function != NULL);
    priv->set_value_function = g_object_info_get_set_value_function_pointer(info);
    g_assert(priv->set_value_function != NULL);
    priv->get_value_function = g_object_info_get_get_value_function_pointer(info);
    g_assert(priv->get_value_function != NULL);
    JS_SetPrivate(prototype, priv);

    gjs_debug(GJS_DEBUG_GFUNDAMENTAL,
              "Defined class %s prototype is %p class %p in object %p constructor %s.%s.%s",
              constructor_name, prototype, JS_GetClass(prototype),
              in_object,
              constructor_info != NULL ? g_base_info_get_namespace(constructor_info) : "unknown",
              constructor_info != NULL ? g_base_info_get_name(g_base_info_get_container(constructor_info)) : "unknown",
              constructor_info != NULL ? g_base_info_get_name(constructor_info) : "unknown");

    if (g_object_info_get_n_fields(priv->info) > 0) {
        gjs_debug(GJS_DEBUG_GFUNDAMENTAL,
                  "Fundamental type '%s.%s' apparently has accessible fields. "
                  "Gjs has no support for this yet, ignoring these.",
                  g_base_info_get_namespace((GIBaseInfo *)priv->info),
                  g_base_info_get_name ((GIBaseInfo *)priv->info));
    }

    gjs_object_define_static_methods(context, constructor, gtype, info);

    value = OBJECT_TO_JSVAL(gjs_gtype_create_gtype_wrapper(context, gtype));
    JS_DefineProperty(context, constructor, "$gtype", value,
                      NULL, NULL, JSPROP_PERMANENT);

    if (constructor_p)
        *constructor_p = constructor;
    if (prototype_p)
        *prototype_p = prototype;

    return JS_TRUE;
}
Пример #6
0
JSBool
gjs_define_error_class(JSContext    *context,
                       JSObject     *in_object,
                       GIEnumInfo   *info,
                       JSObject    **constructor_p,
                       JSObject    **prototype_p)
{
    const char *constructor_name;
    GIBoxedInfo *glib_error_info;
    JSObject *prototype, *parent_proto;
    JSObject *constructor;
    jsval value;
    Error *priv;

    /* See the comment in gjs_define_boxed_class() for an
     * explanation of how this all works; Error is pretty much the
     * same as Boxed (except that we inherit from GLib.Error).
     */

    constructor_name = g_base_info_get_name( (GIBaseInfo*) info);

    if (gjs_object_get_property(context, in_object, constructor_name, &value)) {
        JSObject *constructor;

        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Existing property '%s' does not look like a constructor",
                         constructor_name);
            return JS_FALSE;
        }

        constructor = JSVAL_TO_OBJECT(value);

        gjs_object_get_property(context, constructor, "prototype", &value);
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "error %s prototype property does not appear to exist or has wrong type", constructor_name);
            return JS_FALSE;
        } else {
            if (prototype_p)
                *prototype_p = JSVAL_TO_OBJECT(value);
            if (constructor_p)
                *constructor_p = constructor;

            return JS_TRUE;
        }
    }

    g_irepository_require(NULL, "GLib", "2.0", 0, NULL);
    glib_error_info = (GIBoxedInfo*) g_irepository_find_by_name(NULL, "GLib", "Error");
    parent_proto = gjs_lookup_boxed_prototype(context, glib_error_info);
    g_base_info_unref((GIBaseInfo*)glib_error_info);

    prototype = gjs_init_class_dynamic(context, in_object,
                                          parent_proto,
                                          g_base_info_get_namespace( (GIBaseInfo*) info),
                                          constructor_name,
                                          &gjs_error_class,
                                          gjs_error_constructor,
                                          /* number of constructor args (less can be passed) */
                                          1,
                                          /* props of prototype */
                                          &gjs_error_proto_props[0],
                                          /* funcs of prototype */
                                          &gjs_error_proto_funcs[0],
                                          /* props of constructor, MyConstructor.myprop */
                                          NULL,
                                          /* funcs of constructor, MyConstructor.myfunc() */
                                          &gjs_error_constructor_funcs[0]);
    if (prototype == NULL) {
        gjs_log_exception(context, NULL);
        gjs_fatal("Can't init class %s", constructor_name);
    }

    g_assert(gjs_object_has_property(context, in_object, constructor_name));

    GJS_INC_COUNTER(gerror);
    priv = g_slice_new0(Error);
    priv->info = info;
    g_base_info_ref( (GIBaseInfo*) priv->info);
    priv->domain = g_quark_from_string (g_enum_info_get_error_domain(priv->info));

    JS_SetPrivate(context, prototype, priv);

    gjs_debug(GJS_DEBUG_GBOXED, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype, JS_GET_CLASS(context, prototype), in_object);

    constructor = NULL;
    gjs_object_get_property(context, in_object, constructor_name, &value);
    if (!JSVAL_IS_VOID(value)) {
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Property '%s' does not look like a constructor",
                      constructor_name);
            return JS_FALSE;
        }
    }

    constructor = JSVAL_TO_OBJECT(value);

    gjs_define_enum_values(context, constructor, priv->info);

    if (constructor_p)
        *constructor_p = constructor;

    if (prototype_p)
        *prototype_p = prototype;

    return JS_TRUE;
}
Пример #7
0
JSBool
gjs_define_boxed_class(JSContext    *context,
                          JSObject     *in_object,
                          GIBoxedInfo  *info,
                          JSObject    **constructor_p,
                          JSObject    **prototype_p)
{
    const char *constructor_name;
    JSObject *prototype;
    JSObject *constructor;
    jsval value;
    Boxed *priv;

    /* See the comment in gjs_define_object_class() for an
     * explanation of how this all works; Boxed is pretty much the
     * same as Object.
     */

    constructor_name = g_base_info_get_name( (GIBaseInfo*) info);

    if (gjs_object_get_property(context, in_object, constructor_name, &value)) {
        JSObject *constructor;

        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Existing property '%s' does not look like a constructor",
                      constructor_name);
            return JS_FALSE;
        }

        constructor = JSVAL_TO_OBJECT(value);

        gjs_object_get_property(context, constructor, "prototype", &value);
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "boxed %s prototype property does not appear to exist or has wrong type", constructor_name);
            return JS_FALSE;
        } else {
            if (prototype_p)
                *prototype_p = JSVAL_TO_OBJECT(value);
            if (constructor_p)
                *constructor_p = constructor;

            return JS_TRUE;
        }
    }

    if (!gjs_init_class_dynamic(context, in_object,
                                NULL, /* parent prototype */
                                g_base_info_get_namespace( (GIBaseInfo*) info),
                                constructor_name,
                                &gjs_boxed_class,
                                gjs_boxed_constructor, 1,
                                /* props of prototype */
                                &gjs_boxed_proto_props[0],
                                /* funcs of prototype */
                                &gjs_boxed_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                NULL,
                                &prototype,
                                &constructor)) {
        gjs_log_exception(context, NULL);
        gjs_fatal("Can't init class %s", constructor_name);
    }

    GJS_INC_COUNTER(boxed);
    priv = g_slice_new0(Boxed);
    priv->info = info;
    boxed_fill_prototype_info(priv);

    g_base_info_ref( (GIBaseInfo*) priv->info);
    priv->gtype = g_registered_type_info_get_g_type ((GIRegisteredTypeInfo*) priv->info);
    JS_SetPrivate(context, prototype, priv);

    gjs_debug(GJS_DEBUG_GBOXED, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype, JS_GET_CLASS(context, prototype), in_object);

    priv->can_allocate_directly = struct_is_simple (priv->info);

    define_boxed_class_fields (context, priv, prototype);
    gjs_define_static_methods (context, constructor, priv->gtype, priv->info);

    value = OBJECT_TO_JSVAL(gjs_gtype_create_gtype_wrapper(context, priv->gtype));
    JS_DefineProperty(context, constructor, "$gtype", value,
                      NULL, NULL, JSPROP_PERMANENT);

    if (constructor_p)
        *constructor_p = constructor;

    if (prototype_p)
        *prototype_p = prototype;

    return JS_TRUE;
}
Пример #8
0
JSBool
gjs_define_interface_class(JSContext       *context,
                           JSObject        *in_object,
                           GIInterfaceInfo *info,
                           JSObject       **prototype_p)
{
    Interface *priv;
    const char *constructor_name;
    JSObject *constructor;
    JSObject *prototype;
    jsval value;

    constructor_name = g_base_info_get_name((GIBaseInfo*)info);

    gjs_object_get_property(context, in_object, constructor_name, &value);
    if (!JSVAL_IS_VOID(value)) {
        JSObject *constructor;

        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Existing property '%s' does not look like a constructor",
                      constructor_name);
            return JS_FALSE;
        }

        constructor = JSVAL_TO_OBJECT(value);

        gjs_object_get_property(context, constructor, "prototype", &value);
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "prototype property does not appear to exist or has wrong type");
            return JS_FALSE;
        } else {
            if (prototype_p)
                *prototype_p = JSVAL_TO_OBJECT(value);

            return JS_TRUE;
        }

        return JS_TRUE;
    }

    if (!gjs_init_class_dynamic(context, in_object,
                                NULL,
                                g_base_info_get_namespace((GIBaseInfo*)info),
                                constructor_name,
                                &gjs_interface_class,
                                gjs_interface_constructor, 0,
                                /* props of prototype */
                                &gjs_interface_proto_props[0],
                                /* funcs of prototype */
                                &gjs_interface_proto_funcs[0],
                                /* props of constructor, MyConstructor.myprop */
                                NULL,
                                /* funcs of constructor, MyConstructor.myfunc() */
                                NULL,
                                &prototype,
                                &constructor)) {
        gjs_fatal("Can't init class %s", constructor_name);
    }

    GJS_INC_COUNTER(interface);
    priv = g_slice_new0(Interface);
    priv->info = info;
    priv->gtype = g_registered_type_info_get_g_type(priv->info);
    g_base_info_ref((GIBaseInfo*)priv->info);
    JS_SetPrivate(context, prototype, priv);

    gjs_define_static_methods(context, constructor, priv->gtype, priv->info);

    value = OBJECT_TO_JSVAL(gjs_gtype_create_gtype_wrapper(context, priv->gtype));
    JS_DefineProperty(context, constructor, "$gtype", value,
                      NULL, NULL, JSPROP_PERMANENT);

    if (prototype_p)
        *prototype_p = prototype;

    return JS_TRUE;
}
Пример #9
0
JSBool
gjs_define_param_class(JSContext    *context,
                       JSObject     *in_object,
                       JSObject    **prototype_p)
{
    const char *constructor_name;
    JSObject *prototype;
    jsval value;
    JSObject *constructor;

    constructor_name = "ParamSpec";

    gjs_object_get_property(context, in_object, constructor_name, &value);
    if (!JSVAL_IS_VOID(value)) {
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Existing property '%s' does not look like a constructor",
                      constructor_name);
            return JS_FALSE;
        }

        constructor = JSVAL_TO_OBJECT(value);

        gjs_object_get_property(context, constructor, "prototype", &value);
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "prototype property does not appear to exist or has wrong type");
            return JS_FALSE;
        } else {
            if (prototype_p)
                *prototype_p = JSVAL_TO_OBJECT(value);

            return JS_TRUE;
        }

        return JS_TRUE;
    }

    /* we could really just use JS_InitClass for this since we have one class instead of
     * N classes on-demand. But, this deals with namespacing and such for us.
     */
    prototype = gjs_init_class_dynamic(context, in_object,
                                          /* parent prototype JSObject* for
                                           * prototype; NULL for
                                           * Object.prototype
                                           */
                                          NULL,
                                          "GObject",
                                          constructor_name,
                                          &gjs_param_class,
                                          /* constructor for instances (NULL for
                                           * none - just name the prototype like
                                           * Math - rarely correct)
                                           */
                                          gjs_param_constructor,
                                          /* number of constructor args */
                                          0,
                                          /* props of prototype */
                                          &gjs_param_proto_props[0],
                                          /* funcs of prototype */
                                          &gjs_param_proto_funcs[0],
                                          /* props of constructor, MyConstructor.myprop */
                                          NULL,
                                          /* funcs of constructor, MyConstructor.myfunc() */
                                          gjs_param_constructor_funcs);
    if (prototype == NULL)
        gjs_fatal("Can't init class %s", constructor_name);

    constructor = NULL;
    gjs_object_get_property(context, in_object, constructor_name, &value);
    if (value != JSVAL_VOID) {
        if (!JSVAL_IS_OBJECT(value)) {
            gjs_throw(context, "Property '%s' does not look like a constructor",
                      constructor_name);
            return JS_FALSE;
        }
    }

    constructor = JSVAL_TO_OBJECT(value);

    value = OBJECT_TO_JSVAL(gjs_gtype_create_gtype_wrapper(context, G_TYPE_PARAM));
    JS_DefineProperty(context, constructor, "$gtype", value,
                      NULL, NULL, JSPROP_PERMANENT);
    
    if (prototype_p)
        *prototype_p = prototype;

    gjs_debug(GJS_DEBUG_GPARAM, "Defined class %s prototype is %p class %p in object %p",
              constructor_name, prototype, JS_GET_CLASS(context, prototype), in_object);

    return JS_TRUE;
}