2002-11-10 10:03:51 +00:00
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// GtkSharp.Generation.CallbackGen.cs - The Callback Generatable.
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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2004-06-25 16:35:15 +00:00
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// Copyright (c) 2002-2003 Mike Kestner
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the GNU General Public
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// License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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2002-11-10 10:03:51 +00:00
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namespace GtkSharp.Generation {
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using System;
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using System.IO;
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using System.Xml;
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public class CallbackGen : GenBase, IGeneratable {
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private Parameters parms;
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2003-12-03 23:08:14 +00:00
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private Signature sig = null;
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private ImportSignature isig = null;
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2002-11-10 10:03:51 +00:00
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public CallbackGen (XmlElement ns, XmlElement elem) : base (ns, elem)
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{
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2003-12-03 23:08:14 +00:00
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if (elem ["parameters"] != null) {
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2003-06-14 17:30:32 +00:00
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parms = new Parameters (elem ["parameters"], NS);
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2003-12-03 23:08:14 +00:00
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parms.HideData = true;
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}
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2002-11-10 10:03:51 +00:00
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}
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2003-06-14 17:30:32 +00:00
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public string MarshalType {
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2002-11-10 10:03:51 +00:00
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get
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{
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return NS + "Sharp." + Name + "Native";
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}
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}
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2003-06-14 17:30:32 +00:00
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public string MarshalReturnType {
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2002-11-10 10:03:51 +00:00
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get
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{
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return MarshalType;
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}
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}
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2004-11-18 22:19:31 +00:00
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public string ToNativeReturnType {
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get
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{
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return MarshalType;
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}
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}
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2003-06-14 17:30:32 +00:00
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public string CallByName (string var_name)
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2002-11-10 10:03:51 +00:00
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{
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return var_name + ".NativeDelegate";
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}
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2003-06-14 17:30:32 +00:00
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public string FromNative(string var)
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2002-11-10 10:03:51 +00:00
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{
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return var;
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}
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2003-06-14 17:30:32 +00:00
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public string FromNativeReturn(string var)
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2002-11-10 10:03:51 +00:00
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{
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return FromNative (var);
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}
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2003-06-14 17:30:32 +00:00
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public virtual string ToNativeReturn(string var)
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2003-05-29 Rachel Hestilow <rachel@nullenvoid.com>
* gconf/Value.cs: Update to use new string marshalling.
* generator/StringGen.cs, ConstStringGen.cs: Added.
* generator/IGeneratable.cs: Add new method ToNativeReturn.
* generator/CallbackGen.cs: Implement ToNativeReturn. Call
ToNativeReturn for the return statement. Fix a couple of
places where s_ret was being used incorrectly for m_ret.
* generator/ClassGen.cs, EnumGen.cs, ManualGen.cs,
SimpleGen.cs, StructBase.cs: Implement ToNativeReturn.
* generator/SignalHandler.cs: Call ToNativeReturn for the
return statement, instead of CallByName.
* generator/SymbolTable.cs: Use StringGen for gchar, char,
and gunichar, and ConstStringGen for their const variants.
Add a new method wrapper for ToNativeReturn.
(Trim): Add a special-case for const strings so that the
const is not stripped. Otherwise there is no way of
resolving the const case.
* glade/XML.custom: Update to use new string marshalling.
* glib/Marshaller.cs: Added.
* glib/GException.cs, Markup.cs, ObjectManager.cs,
Value.cs: Update to use new string marshalling.
* glib/Object.cs: Remove old g_type_name DllImport
as it is no longer used.
* glue/fileselection.c (gtksharp_file_selection_get_fileop_entry):
Mark this as const return.
* gtk/ColorSelection.custom, FileSelection.custom,
SelectionData.custom: Update to use new string marshalling.
svn path=/trunk/gtk-sharp/; revision=15286
2003-06-10 18:09:47 +00:00
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{
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return CallByName (var);
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}
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2003-10-05 00:20:17 +00:00
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public string GenWrapper (string ns, GenerationInfo gen_info)
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2002-11-10 10:03:51 +00:00
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{
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string wrapper = Name + "Native";
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2003-10-05 00:20:17 +00:00
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string qualname = ns + "Sharp." + wrapper;
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2002-11-10 10:03:51 +00:00
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2003-12-03 23:08:14 +00:00
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isig = new ImportSignature (parms, NS);
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2003-10-05 00:20:17 +00:00
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StreamWriter sw = gen_info.OpenStream (qualname);
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2002-11-10 10:03:51 +00:00
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2003-05-14 00:27:00 +00:00
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sw.WriteLine ("namespace " + ns + "Sharp {");
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ();
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2003-01-05 23:51:37 +00:00
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sw.WriteLine ("#region Autogenerated code");
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2002-11-10 10:03:51 +00:00
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2003-05-19 02:45:17 +00:00
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SymbolTable table = SymbolTable.Table;
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2002-11-10 10:03:51 +00:00
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XmlElement ret_elem = Elem["return-type"];
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string rettype = ret_elem.GetAttribute("type");
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2003-05-19 02:45:17 +00:00
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string m_ret = table.GetMarshalReturnType (rettype);
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string s_ret = table.GetCSType (rettype);
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ClassBase ret_wrapper = table.GetClassGen (rettype);
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2002-11-10 10:03:51 +00:00
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2003-12-03 23:08:14 +00:00
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sw.WriteLine ("\tinternal delegate " + m_ret + " " + wrapper + "(" + isig.ToString() + ");");
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ();
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2003-06-14 17:30:32 +00:00
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sw.WriteLine ("\tinternal class " + Name + "Wrapper : GLib.DelegateWrapper {");
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2003-04-06 09:21:15 +00:00
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if (m_ret != "void") {
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2003-05-19 02:45:17 +00:00
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if (table.IsEnum (rettype)) {
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2003-04-06 09:21:15 +00:00
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sw.WriteLine ("\t\tstatic int _dummy;");
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} else if (ret_wrapper != null && (ret_wrapper is ObjectGen || ret_wrapper is OpaqueGen)) {
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// Do nothing
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2003-05-19 02:45:17 +00:00
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} else if (!table.IsStruct (rettype) && !table.IsBoxed (rettype)) {
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2003-05-29 Rachel Hestilow <rachel@nullenvoid.com>
* gconf/Value.cs: Update to use new string marshalling.
* generator/StringGen.cs, ConstStringGen.cs: Added.
* generator/IGeneratable.cs: Add new method ToNativeReturn.
* generator/CallbackGen.cs: Implement ToNativeReturn. Call
ToNativeReturn for the return statement. Fix a couple of
places where s_ret was being used incorrectly for m_ret.
* generator/ClassGen.cs, EnumGen.cs, ManualGen.cs,
SimpleGen.cs, StructBase.cs: Implement ToNativeReturn.
* generator/SignalHandler.cs: Call ToNativeReturn for the
return statement, instead of CallByName.
* generator/SymbolTable.cs: Use StringGen for gchar, char,
and gunichar, and ConstStringGen for their const variants.
Add a new method wrapper for ToNativeReturn.
(Trim): Add a special-case for const strings so that the
const is not stripped. Otherwise there is no way of
resolving the const case.
* glade/XML.custom: Update to use new string marshalling.
* glib/Marshaller.cs: Added.
* glib/GException.cs, Markup.cs, ObjectManager.cs,
Value.cs: Update to use new string marshalling.
* glib/Object.cs: Remove old g_type_name DllImport
as it is no longer used.
* glue/fileselection.c (gtksharp_file_selection_get_fileop_entry):
Mark this as const return.
* gtk/ColorSelection.custom, FileSelection.custom,
SelectionData.custom: Update to use new string marshalling.
svn path=/trunk/gtk-sharp/; revision=15286
2003-06-10 18:09:47 +00:00
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sw.WriteLine ("\t\tstatic {0} _dummy;", m_ret);
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2003-04-06 09:21:15 +00:00
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}
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}
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ();
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2003-12-03 23:08:14 +00:00
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sw.WriteLine ("\t\tpublic " + m_ret + " NativeCallback (" + isig.ToString() + ")");
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ("\t\t{");
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2003-04-06 09:21:15 +00:00
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2002-11-10 10:03:51 +00:00
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int count = (parms != null) ? parms.Count : 0;
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int idx = 0;
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bool need_sep = false;
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string call_str = "";
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2003-10-13 21:53:40 +00:00
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string cleanup_str = "";
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2002-11-10 10:03:51 +00:00
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for (int i = 0; i < count; i++)
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{
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string parm_name = parms[i].Name;
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string ctype = parms[i].CType;
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2003-02-24 03:13:08 +00:00
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if (i > 0 && parms[i].IsLength && parms[i-1].IsString)
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continue;
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2002-11-10 10:03:51 +00:00
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if ((i == count - 1) && ctype == "gpointer" && (parm_name.EndsWith ("data") || parm_name.EndsWith ("data_or_owner")))
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continue;
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2003-02-24 03:13:08 +00:00
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2004-05-11 20:56:24 +00:00
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if (ctype == "GError**") {
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sw.WriteLine ("\t\t\t" + parm_name + " = IntPtr.Zero;");
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continue;
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}
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2002-11-10 10:03:51 +00:00
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string cstype = parms[i].CSType;
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2003-10-13 21:53:40 +00:00
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sw.Write("\t\t\t" + cstype + " _arg" + idx);
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if (parms[i].PassAs == "out") {
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sw.WriteLine(";");
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cleanup_str += "\t\t\t" + parm_name + " = " + table.CallByName (ctype, "_arg" + idx) + ";\n";
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} else
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sw.WriteLine(" = " + table.FromNative (ctype, parm_name) + ";");
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2002-11-10 10:03:51 +00:00
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if (need_sep)
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call_str += ", ";
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else
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need_sep = true;
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2003-10-13 21:53:40 +00:00
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call_str += String.Format ("{0} _arg{1}", parms[i].PassAs, idx);
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2002-11-10 10:03:51 +00:00
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idx++;
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}
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sw.Write ("\t\t\t");
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string invoke = "_managed (" + call_str + ")";
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if (m_ret != "void") {
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2003-11-03 01:36:55 +00:00
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if (cleanup_str == "")
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sw.Write ("return ");
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else {
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sw.Write (m_ret + " ret = ");
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cleanup_str += "\t\t\treturn ret;\n";
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}
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if (ret_wrapper != null && (ret_wrapper is ObjectGen || ret_wrapper is OpaqueGen))
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sw.WriteLine ("(({0}) {1}).Handle;", s_ret, invoke);
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else if (table.IsStruct (rettype) || table.IsBoxed (rettype)) {
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// Shoot. I have no idea what to do here.
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2004-12-21 18:46:42 +00:00
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Console.WriteLine ("Struct return type {0} in callback {1}", rettype, CName);
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2003-11-03 01:36:55 +00:00
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sw.WriteLine ("IntPtr.Zero;");
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} else if (table.IsEnum (rettype))
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sw.WriteLine ("(int) {0};", invoke);
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else
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sw.WriteLine ("({0}) {1};", m_ret, table.ToNativeReturn (rettype, invoke));
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2003-10-13 21:53:40 +00:00
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} else
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2002-11-10 10:03:51 +00:00
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sw.WriteLine (invoke + ";");
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2003-10-13 21:53:40 +00:00
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if (cleanup_str != "")
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sw.Write (cleanup_str);
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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2003-06-14 17:30:32 +00:00
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sw.WriteLine ("\t\tinternal {0} NativeDelegate;", wrapper);
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ("\t\tprotected {0} _managed;", NS + "." + Name);
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sw.WriteLine ();
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2003-04-06 09:21:15 +00:00
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sw.WriteLine ("\t\tpublic {0} ({1} managed, object o) : base (o)", Name + "Wrapper", NS + "." + Name);
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2002-11-10 10:03:51 +00:00
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tNativeDelegate = new {0} (NativeCallback);", wrapper);
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sw.WriteLine ("\t\t\t_managed = managed;");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ("\t}");
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2003-01-05 23:51:37 +00:00
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sw.WriteLine ("#endregion");
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2003-10-05 00:37:24 +00:00
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sw.WriteLine ("}");
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sw.Close ();
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2003-06-14 17:30:32 +00:00
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return ns + "Sharp." + Name + "Wrapper";
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2002-11-10 10:03:51 +00:00
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}
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public void Generate ()
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2003-10-05 00:20:17 +00:00
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{
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GenerationInfo gen_info = new GenerationInfo (NSElem);
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Generate (gen_info);
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}
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public void Generate (GenerationInfo gen_info)
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2002-11-10 10:03:51 +00:00
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{
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XmlElement ret_elem = Elem["return-type"];
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if (ret_elem == null) {
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Console.WriteLine("No return type in callback " + CName);
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Statistics.ThrottledCount++;
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return;
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}
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2003-05-19 02:45:17 +00:00
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SymbolTable table = SymbolTable.Table;
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2002-11-10 10:03:51 +00:00
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string rettype = ret_elem.GetAttribute("type");
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2003-05-19 02:45:17 +00:00
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string s_ret = table.GetCSType (rettype);
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2002-11-10 10:03:51 +00:00
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if (s_ret == "") {
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Console.WriteLine("rettype: " + rettype + " in callback " + CName);
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Statistics.ThrottledCount++;
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return;
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}
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if ((parms != null) && !parms.Validate ()) {
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Console.WriteLine(" in callback " + CName + " **** Stubbing it out ****");
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Statistics.ThrottledCount++;
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parms = null;
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}
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2003-12-03 23:08:14 +00:00
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sig = new Signature (parms);
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2002-11-10 10:03:51 +00:00
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2003-12-03 23:08:14 +00:00
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StreamWriter sw = gen_info.OpenStream (Name);
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2002-11-10 10:03:51 +00:00
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2003-10-05 00:20:17 +00:00
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sw.WriteLine ("namespace " + NS + " {");
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ();
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2003-12-03 23:08:14 +00:00
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sw.WriteLine ("\tpublic delegate " + s_ret + " " + Name + "(" + sig.ToString() + ");");
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2003-10-05 00:20:17 +00:00
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sw.WriteLine ();
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sw.WriteLine ("}");
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2002-11-10 10:03:51 +00:00
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2003-10-05 00:20:17 +00:00
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sw.Close ();
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2002-11-10 10:03:51 +00:00
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2003-10-05 00:20:17 +00:00
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GenWrapper (NS, gen_info);
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2002-11-10 10:03:51 +00:00
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Statistics.CBCount++;
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}
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}
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}
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