Exemplo n.º 1
0
/*
 * The *resolved out parameter, on success, should be false to indicate that id
 * was not resolved; and true if id was resolved.
 */
static bool
param_resolve(JSContext       *context,
              JS::HandleObject obj,
              JS::HandleId     id,
              bool            *resolved)
{
    GIObjectInfo *info = NULL;
    GIFunctionInfo *method_info;
    Param *priv;
    bool ret = false;

    priv = priv_from_js(context, obj);
    if (priv != NULL) {
        /* instance, not prototype */
        *resolved = false;
        return true;
    }

    GjsAutoJSChar name;
    if (!gjs_get_string_id(context, id, &name)) {
        *resolved = false;
        return true; /* not resolved, but no error */
    }

    info = (GIObjectInfo*)g_irepository_find_by_gtype(g_irepository_get_default(), G_TYPE_PARAM);
    method_info = g_object_info_find_method(info, name);

    if (method_info == NULL) {
        *resolved = false;
        ret = true;
        goto out;
    }
#if GJS_VERBOSE_ENABLE_GI_USAGE
    _gjs_log_info_usage((GIBaseInfo*) method_info);
#endif

    if (g_function_info_get_flags (method_info) & GI_FUNCTION_IS_METHOD) {
        gjs_debug(GJS_DEBUG_GOBJECT,
                  "Defining method %s in prototype for GObject.ParamSpec",
                  g_base_info_get_name( (GIBaseInfo*) method_info));

        if (gjs_define_function(context, obj, G_TYPE_PARAM, method_info) == NULL) {
            g_base_info_unref( (GIBaseInfo*) method_info);
            goto out;
        }

        *resolved = true; /* we defined the prop in obj */
    }

    g_base_info_unref( (GIBaseInfo*) method_info);

    ret = true;
 out:
    if (info != NULL)
        g_base_info_unref( (GIBaseInfo*)info);

    return ret;
}
Exemplo n.º 2
0
void
gjs_log_object_props(JSContext      *context,
                     JSObject       *obj,
                     GjsDebugTopic   topic,
                     const char     *prefix)
{
    JSObject *props_iter;
    jsid prop_id;

    JS_BeginRequest(context);

    /* We potentially create new strings, plus the property iterator,
     * that could get collected as we go through this process. So
     * create a local root scope.
     */
    JS_EnterLocalRootScope(context);

    props_iter = JS_NewPropertyIterator(context, obj);
    if (props_iter == NULL) {
        gjs_debug(GJS_DEBUG_ERROR,
                  "Failed to create property iterator for object props");
        goto done;
    }

    prop_id = JSVAL_VOID;
    if (!JS_NextProperty(context, props_iter, &prop_id))
        goto done;

    while (prop_id != JSVAL_VOID) {
        jsval nameval;
        const char *name;
        jsval propval;

        if (!JS_IdToValue(context, prop_id, &nameval))
            goto next;

        if (!gjs_get_string_id(nameval, &name))
            goto next;

        if (!gjs_object_get_property(context, obj, name, &propval))
            goto next;

        gjs_debug(topic,
                  "%s%s = '%s'",
                  prefix, name,
                  gjs_value_debug_string(context, propval));

    next:
        prop_id = JSVAL_VOID;
        if (!JS_NextProperty(context, props_iter, &prop_id))
            break;
    }

 done:
    JS_LeaveLocalRootScope(context);
    JS_EndRequest(context);
}
Exemplo n.º 3
0
static bool
interface_new_resolve(JSContext *context,
                      JS::HandleObject obj,
                      JS::HandleId id,
                      JS::MutableHandleObject objp)
{
    Interface *priv;
    char *name;
    bool ret = false;
    GIFunctionInfo *method_info;

    if (!gjs_get_string_id(context, id, &name))
        return true;

    priv = priv_from_js(context, obj);

    if (priv == NULL)
        goto out;

    /* If we have no GIRepository information then this interface was defined
     * from within GJS. In that case, it has no properties that need to be
     * resolved from within C code, as interfaces cannot inherit. */
    if (priv->info == NULL) {
        ret = true;
        goto out;
    }

    method_info = g_interface_info_find_method((GIInterfaceInfo*) priv->info, name);

    if (method_info != NULL) {
        if (g_function_info_get_flags (method_info) & GI_FUNCTION_IS_METHOD) {
            if (gjs_define_function(context, obj,
                                    priv->gtype,
                                    (GICallableInfo*)method_info) == NULL) {
                g_base_info_unref((GIBaseInfo*)method_info);
                goto out;
            }

            objp.set(obj);
        }

        g_base_info_unref((GIBaseInfo*)method_info);
    }

    ret = true;

 out:
    g_free (name);
    return ret;
}
Exemplo n.º 4
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or function prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
importer_new_resolve(JSContext *context,
                     JSObject **obj,
                     jsid      *id,
                     unsigned   flags,
                     JSObject **objp)
{
    Importer *priv;
    char *name;
    JSBool ret = JS_TRUE;
    jsid module_init_name;

    *objp = NULL;

    module_init_name = gjs_context_get_const_string(context, GJS_STRING_MODULE_INIT);
    if (*id == module_init_name)
        return JS_TRUE;

    if (!gjs_get_string_id(context, *id, &name))
        return JS_FALSE;

    /* let Object.prototype resolve these */
    if (strcmp(name, "valueOf") == 0 ||
        strcmp(name, "toString") == 0 ||
        strcmp(name, "__iterator__") == 0)
        goto out;
    priv = priv_from_js(context, *obj);

    gjs_debug_jsprop(GJS_DEBUG_IMPORTER,
                     "Resolve prop '%s' hook obj %p priv %p",
                     name, (void *)obj, priv);
    if (priv == NULL) /* we are the prototype, or have the wrong class */
        goto out;
    JS_BeginRequest(context);
    if (do_import(context, *obj, priv, name)) {
        *objp = *obj;
    } else {
        ret = JS_FALSE;
    }
    JS_EndRequest(context);

 out:
    g_free(name);
    return ret;
}
Exemplo n.º 5
0
static JSBool
interface_new_resolve(JSContext *context,
                      JSObject  *obj,
                      jsid       id,
                      unsigned   flags,
                      JSObject **objp)
{
    Interface *priv;
    char *name;
    JSBool ret = JS_FALSE;
    GIFunctionInfo *method_info;

    *objp = NULL;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE;

    priv = priv_from_js(context, obj);

    if (priv == NULL)
        goto out;

    method_info = g_interface_info_find_method((GIInterfaceInfo*) priv->info, name);

    if (method_info != NULL) {
        if (gjs_define_function(context, obj,
                                priv->gtype,
                                (GICallableInfo*)method_info) == NULL) {
            g_base_info_unref((GIBaseInfo*)method_info);
            goto out;
        }

        *objp = obj;
        g_base_info_unref((GIBaseInfo*)method_info);
    }

    ret = JS_TRUE;

 out:
    g_free (name);
    return ret;
}
Exemplo n.º 6
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or function prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
importer_new_resolve(JSContext *context,
                     JS::HandleObject obj,
                     JS::HandleId id,
                     unsigned flags,
                     JS::MutableHandleObject objp)
{
    Importer *priv;
    std::string name;
    JSBool ret = JS_TRUE;
    jsid module_init_name;

    module_init_name = gjs_context_get_const_string(context, GJS_STRING_MODULE_INIT);
    if (id == module_init_name)
        return JS_TRUE;

    if (!gjs_get_string_id(context, id, name))
        return JS_FALSE;

    /* let Object.prototype resolve these */
    if (name == "valueOf" ||
        name == "toString" ||
        name == "__iterator__")
        goto out;
    priv = priv_from_js(context, obj);

//    std::cout << "Resolve prop '" << name << "' hook obj " << (uint32_t)*obj << " priv " << (uint32_t)priv << "\n";
    if (priv == NULL) /* we are the prototype, or have the wrong class */
        goto out;
    JS_BeginRequest(context);
    if (do_import(context, obj, priv, name)) {
        objp.set(obj);
    } else {
        ret = JS_FALSE;
    }
    JS_EndRequest(context);

 out:
    return ret;
}
Exemplo n.º 7
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or function prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
importer_new_resolve(JSContext *context,
                     JSObject  *obj,
                     jsid       id,
                     uintN      flags,
                     JSObject **objp)
{
    Importer *priv;
    char *name;
    JSBool ret = JS_TRUE;

    *objp = NULL;

    if (!gjs_get_string_id(context, id, &name))
        return JS_FALSE;

    /* let Object.prototype resolve these */
    if (strcmp(name, "valueOf") == 0 ||
            strcmp(name, "toString") == 0 ||
            strcmp(name, "__iterator__") == 0)
        goto out;

    priv = priv_from_js(context, obj);
    gjs_debug_jsprop(GJS_DEBUG_IMPORTER, "Resolve prop '%s' hook obj %p priv %p", name, obj, priv);

    if (priv == NULL) /* we are the prototype, or have the wrong class */
        goto out;

    JS_BeginRequest(context);
    if (do_import(context, obj, priv, name)) {
        *objp = obj;
    } else {
        ret = JS_FALSE;
    }
    JS_EndRequest(context);

out:
    g_free(name);
    return ret;
}
Exemplo n.º 8
0
static void
load_module_elements(JSContext *context,
                     JSObject *in_object,
                     ImporterIterator *iter,
                     const char *init_path) {
    JSObject *module_obj;
    JSObject *jsiter;

    module_obj = load_module_init(context, in_object, init_path);

    if (module_obj != NULL) {
        jsid idp;

        jsiter = JS_NewPropertyIterator(context, module_obj);

        if (jsiter == NULL) {
            return;
        }

        if (!JS_NextProperty(context, jsiter, &idp)) {
            return;
        }

        while (!JSID_IS_VOID(idp)) {
            char *name;

            if (!gjs_get_string_id(context, idp, &name)) {
                continue;
            }

            /* Pass ownership of name */
            g_ptr_array_add(iter->elements, name);

            if (!JS_NextProperty(context, jsiter, &idp)) {
                break;
            }
        }
    }
}
Exemplo n.º 9
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or fundamental prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
fundamental_instance_new_resolve(JSContext  *context,
                                 JS::HandleObject obj,
                                 JS::HandleId id,
                                 unsigned flags,
                                 JS::MutableHandleObject objp)
{
    FundamentalInstance *priv;
    char *name;
    JSBool ret = JS_FALSE;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE; /* not resolved, but no error */

    priv = priv_from_js(context, obj);
    gjs_debug_jsprop(GJS_DEBUG_GFUNDAMENTAL, "Resolve prop '%s' hook obj %p priv %p", name, *obj, priv);

    if (priv == NULL)
        goto out; /* wrong class */

    if (priv->prototype == NULL) {
        /* We are the prototype, so look for methods and other class properties */
        Fundamental *proto_priv = (Fundamental *) priv;
        GIFunctionInfo *method_info;

        method_info = g_object_info_find_method((GIStructInfo*) proto_priv->info,
                                                name);

        if (method_info != NULL) {
            const char *method_name;

#if GJS_VERBOSE_ENABLE_GI_USAGE
            _gjs_log_info_usage((GIBaseInfo *) method_info);
#endif
            if (g_function_info_get_flags (method_info) & GI_FUNCTION_IS_METHOD) {
                method_name = g_base_info_get_name((GIBaseInfo *) method_info);

                /* we do not define deprecated methods in the prototype */
                if (g_base_info_is_deprecated((GIBaseInfo *) method_info)) {
                    gjs_debug(GJS_DEBUG_GFUNDAMENTAL,
                              "Ignoring definition of deprecated method %s in prototype %s.%s",
                              method_name,
                              g_base_info_get_namespace((GIBaseInfo *) proto_priv->info),
                              g_base_info_get_name((GIBaseInfo *) proto_priv->info));
                    g_base_info_unref((GIBaseInfo *) method_info);
                    ret = JS_TRUE;
                    goto out;
                }

                gjs_debug(GJS_DEBUG_GFUNDAMENTAL,
                          "Defining method %s in prototype for %s.%s",
                          method_name,
                          g_base_info_get_namespace((GIBaseInfo *) proto_priv->info),
                          g_base_info_get_name((GIBaseInfo *) proto_priv->info));

                if (gjs_define_function(context, obj, proto_priv->gtype,
                                        method_info) == NULL) {
                    g_base_info_unref((GIBaseInfo *) method_info);
                    goto out;
                }

                objp.set(obj);
            }

            g_base_info_unref((GIBaseInfo *) method_info);
        }

        ret = fundamental_instance_new_resolve_interface(context, obj, objp,
                                                         proto_priv, name);
    } else {
        /* We are an instance, not a prototype, so look for
         * per-instance props that we want to define on the
         * JSObject. Generally we do not want to cache these in JS, we
         * want to always pull them from the C object, or JS would not
         * see any changes made from C. So we use the get/set prop
         * hooks, not this resolve hook.
         */
    }

    ret = JS_TRUE;
 out:
    g_free(name);
    return ret;
}
Exemplo n.º 10
0
/* Initialize a newly created Boxed from an object that is a "hash" of
 * properties to set as fieds of the object. We don't require that every field
 * of the object be set.
 */
static JSBool
boxed_init_from_props(JSContext   *context,
                      JSObject    *obj,
                      Boxed       *priv,
                      jsval        props_value)
{
    JSObject *props;
    JSObject *iter;
    jsid prop_id;
    GHashTable *field_map;
    gboolean success;

    success = FALSE;

    if (!JSVAL_IS_OBJECT(props_value)) {
        gjs_throw(context, "argument should be a hash with fields to set");
        return JS_FALSE;
    }

    props = JSVAL_TO_OBJECT(props_value);

    iter = JS_NewPropertyIterator(context, props);
    if (iter == NULL) {
        gjs_throw(context, "Failed to create property iterator for fields hash");
        return JS_FALSE;
    }

    field_map = get_field_map(priv->info);

    prop_id = JSID_VOID;
    if (!JS_NextProperty(context, iter, &prop_id))
        goto out;

    while (!JSID_IS_VOID(prop_id)) {
        GIFieldInfo *field_info;
        char *name;
        jsval value;

        if (!gjs_get_string_id(context, prop_id, &name))
            goto out;

        field_info = g_hash_table_lookup(field_map, name);
        if (field_info == NULL) {
            gjs_throw(context, "No field %s on boxed type %s",
                      name, g_base_info_get_name((GIBaseInfo *)priv->info));
            g_free(name);
            goto out;
        }

        if (!gjs_object_require_property(context, props, "property list", name, &value)) {
            g_free(name);
            goto out;
        }
        g_free(name);

        if (!boxed_set_field_from_value(context, priv, field_info, value))
            goto out;

        prop_id = JSID_VOID;
        if (!JS_NextProperty(context, iter, &prop_id))
            goto out;
    }

    success = TRUE;

 out:
    g_hash_table_destroy(field_map);

    return success;
}
Exemplo n.º 11
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or boxed prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
boxed_new_resolve(JSContext *context,
                  JSObject  *obj,
                  jsid       id,
                  unsigned   flags,
                  JSObject **objp)
{
    Boxed *priv;
    char *name;
    JSBool ret = JS_FALSE;

    *objp = NULL;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE; /* not resolved, but no error */

    priv = priv_from_js(context, obj);
    gjs_debug_jsprop(GJS_DEBUG_GBOXED, "Resolve prop '%s' hook obj %p priv %p", name, obj, priv);

    if (priv == NULL)
        goto out; /* wrong class */

    if (priv->gboxed == NULL) {
        /* We are the prototype, so look for methods and other class properties */
        GIFunctionInfo *method_info;

        method_info = g_struct_info_find_method((GIStructInfo*) priv->info,
                                                name);

        if (method_info != NULL) {
            JSObject *boxed_proto;
            const char *method_name;

#if GJS_VERBOSE_ENABLE_GI_USAGE
            _gjs_log_info_usage((GIBaseInfo*) method_info);
#endif

            method_name = g_base_info_get_name( (GIBaseInfo*) method_info);

            gjs_debug(GJS_DEBUG_GBOXED,
                      "Defining method %s in prototype for %s.%s",
                      method_name,
                      g_base_info_get_namespace( (GIBaseInfo*) priv->info),
                      g_base_info_get_name( (GIBaseInfo*) priv->info));

            boxed_proto = obj;

            if (gjs_define_function(context, boxed_proto, priv->gtype,
                                    (GICallableInfo *)method_info) == NULL) {
                g_base_info_unref( (GIBaseInfo*) method_info);
                goto out;
            }

            *objp = boxed_proto; /* we defined the prop in object_proto */

            g_base_info_unref( (GIBaseInfo*) method_info);
        }
    } else {
        /* We are an instance, not a prototype, so look for
         * per-instance props that we want to define on the
         * JSObject. Generally we do not want to cache these in JS, we
         * want to always pull them from the C object, or JS would not
         * see any changes made from C. So we use the get/set prop
         * hooks, not this resolve hook.
         */
    }
    ret = JS_TRUE;

 out:
    g_free(name);
    return ret;
}
Exemplo n.º 12
0
Arquivo: param.c Projeto: goizueta/gjs
/* a hook on getting a property; set value_p to override property's value.
 * Return value is JS_FALSE on OOM/exception.
 */
static JSBool
param_get_prop(JSContext *context,
               JSObject  *obj,
               jsid       id,
               jsval     *value_p)
{
    JSBool success;
    Param *priv;
    GParamSpec *pspec;
    char *name;
    GType gtype;
    GIObjectInfo *info = NULL, *parent_info = NULL;
    GIFieldInfo *field_info = NULL;
    GITypeInfo *type_info = NULL;
    GIArgument arg;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE; /* not something we affect, but no error */

    priv = priv_from_js(context, obj);

    if (priv == NULL) {
        g_free(name);
        return JS_FALSE; /* wrong class */
    }

    success = JS_FALSE;
    pspec = priv->gparam;

    gtype = G_TYPE_FROM_INSTANCE(pspec);
    info = (GIObjectInfo*)g_irepository_find_by_gtype(g_irepository_get_default(), gtype);

    if (info == NULL) {
        /* We may have a non-introspectable GParamSpec subclass here. Just return VOID. */
        *value_p = JSVAL_VOID;
        success = JS_TRUE;
        goto out;
    }

    parent_info = g_object_info_get_parent(info);

    field_info = find_field_info(info, name);

    if (field_info == NULL) {
        /* Try it on the parent GParamSpec for generic GParamSpec properties. */
        field_info = find_field_info(parent_info, name);
    }

    if (field_info == NULL) {
        *value_p = JSVAL_VOID;
        success = JS_TRUE;
        goto out;
    }

    type_info = g_field_info_get_type(field_info);

    if (!g_field_info_get_field(field_info, priv->gparam, &arg)) {
        gjs_throw(context, "Reading field %s.%s is not supported",
                  g_base_info_get_name(info),
                  g_base_info_get_name((GIBaseInfo*)field_info));
        goto out;
    }

    if (!gjs_value_from_g_argument(context, value_p, type_info, &arg, TRUE))
        goto out;

    success = JS_TRUE;

 out:
    if (field_info != NULL)
        g_base_info_unref((GIBaseInfo*)field_info);
    if (type_info != NULL)
        g_base_info_unref((GIBaseInfo*)type_info);
    if (info != NULL)
        g_base_info_unref((GIBaseInfo*)info);
    if (parent_info != NULL)
        g_base_info_unref((GIBaseInfo*)parent_info);
    g_free(name);

    return success;
}
Exemplo n.º 13
0
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or boxed prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
union_new_resolve(JSContext *context,
                  JS::HandleObject obj,
                  JS::HandleId id,
                  unsigned flags,
                  JS::MutableHandleObject objp)
{
    Union *priv;
    char *name;
    JSBool ret = JS_TRUE;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE; /* not resolved, but no error */

    priv = priv_from_js(context, obj);
    gjs_debug_jsprop(GJS_DEBUG_GBOXED, "Resolve prop '%s' hook obj %p priv %p", name, *obj, priv);

    if (priv == NULL) {
        ret = JS_FALSE; /* wrong class */
        goto out;
    }

    if (priv->gboxed == NULL) {
        /* We are the prototype, so look for methods and other class properties */
        GIFunctionInfo *method_info;

        method_info = g_union_info_find_method((GIUnionInfo*) priv->info,
                                               name);

        if (method_info != NULL) {
            JSObject *union_proto;
            const char *method_name;

#if GJS_VERBOSE_ENABLE_GI_USAGE
            _gjs_log_info_usage((GIBaseInfo*) method_info);
#endif
            if (g_function_info_get_flags (method_info) & GI_FUNCTION_IS_METHOD) {
                method_name = g_base_info_get_name( (GIBaseInfo*) method_info);

                gjs_debug(GJS_DEBUG_GBOXED,
                          "Defining method %s in prototype for %s.%s",
                          method_name,
                          g_base_info_get_namespace( (GIBaseInfo*) priv->info),
                          g_base_info_get_name( (GIBaseInfo*) priv->info));

                union_proto = obj;

                if (gjs_define_function(context, union_proto,
                                        g_registered_type_info_get_g_type(priv->info),
                                        method_info) == NULL) {
                    g_base_info_unref( (GIBaseInfo*) method_info);
                    ret = JS_FALSE;
                    goto out;
                }

                objp.set(union_proto); /* we defined the prop in object_proto */
            }

            g_base_info_unref( (GIBaseInfo*) method_info);
        }
    } else {
        /* We are an instance, not a prototype, so look for
         * per-instance props that we want to define on the
         * JSObject. Generally we do not want to cache these in JS, we
         * want to always pull them from the C object, or JS would not
         * see any changes made from C. So we use the get/set prop
         * hooks, not this resolve hook.
         */
    }

 out:
    g_free(name);
    return ret;
}
Exemplo n.º 14
0
Arquivo: ns.cpp Projeto: dreamsxin/gjs
/*
 * Like JSResolveOp, but flags provide contextual information as follows:
 *
 *  JSRESOLVE_QUALIFIED   a qualified property id: obj.id or obj[id], not id
 *  JSRESOLVE_ASSIGNING   obj[id] is on the left-hand side of an assignment
 *  JSRESOLVE_DETECTING   'if (o.p)...' or similar detection opcode sequence
 *  JSRESOLVE_DECLARING   var, const, or function prolog declaration opcode
 *  JSRESOLVE_CLASSNAME   class name used when constructing
 *
 * The *objp out parameter, on success, should be null to indicate that id
 * was not resolved; and non-null, referring to obj or one of its prototypes,
 * if id was resolved.
 */
static JSBool
ns_new_resolve(JSContext *context,
               JS::HandleObject obj,
               JS::HandleId id,
               unsigned flags,
               JS::MutableHandleObject objp)
{
    Ns *priv;
    char *name;
    GIRepository *repo;
    GIBaseInfo *info;
    JSBool ret = JS_FALSE;
    gboolean defined;

    if (!gjs_get_string_id(context, id, &name))
        return JS_TRUE; /* not resolved, but no error */

    /* let Object.prototype resolve these */
    if (strcmp(name, "valueOf") == 0 ||
        strcmp(name, "toString") == 0) {
        ret = JS_TRUE;
        goto out;
    }

    priv = priv_from_js(context, obj);
    gjs_debug_jsprop(GJS_DEBUG_GNAMESPACE, "Resolve prop '%s' hook obj %p priv %p", name, *obj, priv);

    if (priv == NULL) {
        ret = JS_TRUE; /* we are the prototype, or have the wrong class */
        goto out;
    }

    JS_BeginRequest(context);

    repo = g_irepository_get_default();

    info = g_irepository_find_by_name(repo, priv->gi_namespace, name);
    if (info == NULL) {
        /* No property defined, but no error either, so return TRUE */
        JS_EndRequest(context);
        ret = JS_TRUE;
        goto out;
    }

    gjs_debug(GJS_DEBUG_GNAMESPACE,
              "Found info type %s for '%s' in namespace '%s'",
              gjs_info_type_name(g_base_info_get_type(info)),
              g_base_info_get_name(info),
              g_base_info_get_namespace(info));

    if (gjs_define_info(context, obj, info, &defined)) {
        g_base_info_unref(info);
        if (defined)
            objp.set(obj); /* we defined the property in this object */
        ret = JS_TRUE;
    } else {
        gjs_debug(GJS_DEBUG_GNAMESPACE,
                  "Failed to define info '%s'",
                  g_base_info_get_name(info));

        g_base_info_unref(info);
    }
    JS_EndRequest(context);

 out:
    g_free(name);
    return ret;
}