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/* valadbusbindingprovider.vala
*
* Copyright (C) 2007 Jürg Billeter
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
*/
using GLib;
using Gee;
/**
* Dynamic binding provider for DBus objects.
*/
public class Vala.DBusBindingProvider : Object, BindingProvider {
public CodeContext context {
set {
_context = value;
string_type = (DataType) _context.root.scope.lookup ("string");
var dbus_ns = _context.root.scope.lookup ("DBus");
if (dbus_ns != null) {
connection_type = (DataType) dbus_ns.scope.lookup ("Connection");
dbus_error_type = (DataType) dbus_ns.scope.lookup ("Error");
}
}
}
private CodeContext _context;
private DataType string_type;
private DataType connection_type;
private DataType dbus_error_type;
private Collection<Symbol> symbols = new ArrayList<Symbol> ();
public DBusBindingProvider () {
}
public Symbol get_binding (MemberAccess! ma) {
if (connection_type != null && ma.inner != null && ma.inner.static_type != null && ma.inner.static_type.data_type == connection_type) {
var type_args = ma.get_type_arguments ();
if (type_args.size != 1) {
return null;
}
Iterator<TypeReference> type_args_it = type_args.iterator ();
type_args_it.next ();
var ret_type = new TypeReference ();
ret_type.data_type = type_args_it.get ().data_type;
if (!is_dbus_interface (ret_type.data_type)) {
return null;
}
var m = new Method ("get_object", ret_type, ma.source_reference);
m.set_cname ("dbus_g_proxy_new_for_name");
m.add_cheader_filename ("dbus/dbus-glib.h");
m.access = SymbolAccessibility.PUBLIC;
var string_type_ref = new TypeReference ();
string_type_ref.data_type = string_type;
m.add_parameter (new FormalParameter ("name", string_type_ref));
m.add_parameter (new FormalParameter ("path", string_type_ref));
symbols.add (m);
return m;
} else if (ma.inner != null && ma.inner.static_type != null && is_dbus_interface (ma.inner.static_type.data_type)) {
if (ma.parent_node is InvocationExpression) {
var expr = (InvocationExpression) ma.parent_node;
var ret_type = new TypeReference ();
if (expr.expected_type != null) {
ret_type.data_type = expr.expected_type.data_type;
ret_type.transfers_ownership = ret_type.data_type.is_reference_type ();
}
var m = new DBusMethod (ma.member_name, ret_type, ma.source_reference);
if (expr.expected_type != null) {
var error_type = new TypeReference ();
error_type.data_type = dbus_error_type;
m.add_error_domain (error_type);
}
m.access = SymbolAccessibility.PUBLIC;
m.add_parameter (new FormalParameter.with_ellipsis ());
symbols.add (m);
return m;
} else if (ma.parent_node is Assignment) {
var a = (Assignment) ma.parent_node;
if (a.left != ma) {
return null;
}
var s = new DBusSignal (ma.member_name, new TypeReference (), ma.source_reference);
s.access = SymbolAccessibility.PUBLIC;
symbols.add (s);
return s;
}
}
return null;
}
private bool is_dbus_interface (DataType! t) {
if (!(t is Interface)) {
return false;
}
return (t.get_attribute ("DBusInterface") != null);
}
}
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