GtkSharp/generator/ReturnValue.cs
Mike Kestner c93ecb7f88 2007-09-11 Mike Kestner <mkestner@novell.com>
* gtk/Gtk.metadata: virtual_method rules for GInterface generation.
	* generator/ReturnValue.cs (ToNative): new method for the virtual
	method generation.
	* generator/Parameters.cs (FromNative): null guarding.
	* generator/ManagedCallString.cs: rework for interface method
	generation including callback and error param support.
	* generator/CallbackGen.cs: Invoker support. new class that deals
	with persistence of native and wrapper delegates in native to managed
	callback method signatures.
	* generator/VirtualMethod.cs: support for generation of interface
	methods, and all the funky parameters that come with that.
	* generator/InterfaceGen.cs: Fill out the adapter implementation.
	* generator/MethodBody.cs: Initialize overload. Extend ThrowsException
	to support GError outside the last parameter slot.
	* glib/GInterfaceAttribute.cs: New attribute to mark interfaces and
	obtain adapter type.
	* glib/Object.cs (AddInterfaces): interface registration method.
	* glib/GInterfaceAdapter.cs: New abstract class for interface
	adapter generation.
	* glib/Makefile.am: add new files.

svn path=/trunk/gtk-sharp/; revision=85658
2007-09-11 20:34:24 +00:00

168 lines
3.8 KiB
C#

// GtkSharp.Generation.ReturnValue.cs - The ReturnValue Generatable.
//
// Author: Mike Kestner <mkestner@novell.com>
//
// Copyright (c) 2004-2005 Novell, Inc.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the GNU General Public
// License as published by the Free Software Foundation.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace GtkSharp.Generation {
using System;
using System.Xml;
public class ReturnValue {
private XmlElement elem;
public ReturnValue (XmlElement elem)
{
this.elem = elem;
}
public string CType {
get {
return elem == null ? String.Empty : elem.GetAttribute("type");
}
}
public string CSType {
get {
if (IGen == null)
return String.Empty;
if (ElementType != String.Empty)
return ElementType + "[]";
return IGen.QualifiedName + (IsArray ? "[]" : String.Empty);
}
}
string ElementCType {
get {
if (elem != null && elem.HasAttribute ("element_type"))
return elem.GetAttribute ("element_type");
return String.Empty;
}
}
bool ElementsOwned {
get {
if (elem != null && elem.GetAttribute ("elements_owned") == "true")
return true;
return false;
}
}
string ElementType {
get {
if (ElementCType.Length > 0)
return SymbolTable.Table.GetCSType (ElementCType);
return String.Empty;
}
}
IGeneratable igen;
IGeneratable IGen {
get {
if (igen == null)
igen = SymbolTable.Table [CType];
return igen;
}
}
bool IsArray {
get {
return elem == null ? false : elem.HasAttribute ("array");
}
}
public bool IsVoid {
get {
return CSType == "void";
}
}
public string MarshalType {
get {
if (IGen == null)
return String.Empty;
return IGen.MarshalReturnType + (IsArray ? "[]" : String.Empty);
}
}
bool Owned {
get {
return elem.GetAttribute ("owned") == "true";
}
}
public string ToNativeType {
get {
if (IGen == null)
return String.Empty;
return IGen.ToNativeReturnType + (IsArray ? "[]" : String.Empty);
}
}
public string FromNative (string var)
{
if (IGen == null)
return String.Empty;
if (ElementType != String.Empty) {
string type_str = "typeof (" + ElementType + ")";
string args = type_str + ", " + (Owned ? "true" : "false") + ", " + (ElementsOwned ? "true" : "false");
return String.Format ("({0}[]) GLib.Marshaller.ListToArray ({1}, {2})", ElementType, IGen.FromNativeReturn (var + ", " + args), type_str);
} else if (IGen is HandleBase)
return ((HandleBase)IGen).FromNative (var, Owned);
else
return IGen.FromNativeReturn (var);
}
public string ToNative (string var)
{
if (IGen == null)
return String.Empty;
if (ElementType.Length > 0) {
string args = ", typeof (" + ElementType + "), " + (Owned ? "true" : "false") + ", " + (ElementsOwned ? "true" : "false");
var = "new " + IGen.QualifiedName + "(" + var + args + ")";
}
if (IGen is IManualMarshaler)
return (IGen as IManualMarshaler).AllocNative (var);
else
return IGen.ToNativeReturn (var);
}
public bool Validate ()
{
if (MarshalType == "" || CSType == "") {
Console.Write("rettype: " + CType);
return false;
}
return true;
}
}
}