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/* valaclassregisterfunction.vala
*
* Copyright (C) 2006-2008 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;
/**
* C function to register a class at runtime.
*/
public class Vala.ClassRegisterFunction : TypeRegisterFunction {
/**
* Specifies the class to be registered.
*/
public weak Class class_reference { get; set; }
/**
* Creates a new C function to register the specified class at runtime.
*
* @param cl a class
* @return newly created class register function
*/
public ClassRegisterFunction (Class cl) {
class_reference = cl;
}
public override TypeSymbol get_type_declaration () {
return class_reference;
}
public override string get_type_struct_name () {
return "%sClass".printf (class_reference.get_cname ());
}
public override string get_base_init_func_name () {
if (class_reference.class_constructor != null) {
return "%s_base_init".printf (class_reference.get_lower_case_cname (null));
} else {
return "NULL";
}
}
public override string get_class_init_func_name () {
return "%s_class_init".printf (class_reference.get_lower_case_cname (null));
}
public override string get_instance_struct_size () {
return "sizeof (%s)".printf (class_reference.get_cname ());
}
public override string get_instance_init_func_name () {
return "%s_instance_init".printf (class_reference.get_lower_case_cname (null));
}
public override string get_parent_type_name () {
return class_reference.base_class.get_type_id ();
}
public override string get_type_flags () {
if (class_reference.is_abstract) {
return "G_TYPE_FLAG_ABSTRACT";
} else {
return "0";
}
}
public override SymbolAccessibility get_accessibility () {
return class_reference.access;
}
public override CCodeFragment get_type_interface_init_declaration () {
var frag = new CCodeFragment ();
foreach (DataType base_type in class_reference.get_base_types ()) {
if (!(base_type.data_type is Interface)) {
continue;
}
var iface = (Interface) base_type.data_type;
var iface_info_name = "%s_info".printf (iface.get_lower_case_cname (null));
var ctypedecl = new CCodeDeclaration ("const GInterfaceInfo");
ctypedecl.modifiers = CCodeModifiers.STATIC;
ctypedecl.add_declarator (new CCodeVariableDeclarator.with_initializer (iface_info_name, new CCodeConstant ("{ (GInterfaceInitFunc) %s_%s_interface_init, (GInterfaceFinalizeFunc) NULL, NULL}".printf (class_reference.get_lower_case_cname (null), iface.get_lower_case_cname (null)))));
frag.append (ctypedecl);
}
return frag;
}
public override CCodeFragment get_type_interface_init_statements () {
var frag = new CCodeFragment ();
foreach (DataType base_type in class_reference.get_base_types ()) {
if (!(base_type.data_type is Interface)) {
continue;
}
var iface = (Interface) base_type.data_type;
var iface_info_name = "%s_info".printf (iface.get_lower_case_cname (null));
var reg_call = new CCodeFunctionCall (new CCodeIdentifier ("g_type_add_interface_static"));
reg_call.add_argument (new CCodeIdentifier ("%s_type_id".printf (class_reference.get_lower_case_cname (null))));
reg_call.add_argument (new CCodeIdentifier (iface.get_type_id ()));
reg_call.add_argument (new CCodeIdentifier ("&%s".printf (iface_info_name)));
frag.append (new CCodeExpressionStatement (reg_call));
}
return frag;
}
}
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