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GtkSharp/generator/Signal.cs
Mike Kestner 74105a1c80 2008-11-05 Mike Kestner <mkestner@novell.com> 
* atk/atk-api-2.12.raw: regen
	* gtk/gtk-api-2.12.raw: regen
	* generator/Signal.cs: reinstate old custom marshaler generation and
	generate custom marshaling when 'manual' attr is set.
	* parser/gapi2xml.pl: set manual attr on sigs that have G_TYPE_POINTER
	parameters since the generic closure can't cope with them.

svn path=/trunk/gtk-sharp/; revision=118068
2008-11-06 02:23:21 +00:00

601 lines
22 KiB
C#
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// GtkSharp.Generation.Signal.cs - The Signal Generatable.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// Copyright (c) 2001-2003 Mike Kestner
// Copyright (c) 2003-2005 Novell, Inc.
// Copyright (c) 2007 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.Collections;
using System.IO;
using System.Xml;
public class Signal {
bool marshaled;
string name;
XmlElement elem;
ReturnValue retval;
Parameters parms;
ClassBase container_type;
public Signal (XmlElement elem, ClassBase container_type)
{
this.elem = elem;
name = elem.GetAttribute ("name");
marshaled = elem.GetAttribute ("manual") == "true";
retval = new ReturnValue (elem ["return-type"]);
parms = new Parameters (elem["parameters"]);
this.container_type = container_type;
}
bool Marshaled {
get { return marshaled; }
}
public string Name {
get {
return name;
}
set {
name = value;
}
}
public bool Validate ()
{
if (Name == "") {
Console.Write ("Nameless signal ");
Statistics.ThrottledCount++;
return false;
}
if (!parms.Validate () || !retval.Validate ()) {
Console.Write (" in signal " + Name + " ");
Statistics.ThrottledCount++;
return false;
}
return true;
}
public void GenerateDecl (StreamWriter sw)
{
if (elem.HasAttribute("new_flag") || (container_type != null && container_type.GetSignalRecursively (Name) != null))
sw.Write("new ");
sw.WriteLine ("\t\tevent " + EventHandlerQualifiedName + " " + Name + ";");
}
public string CName {
get {
return "\"" + elem.GetAttribute("cname") + "\"";
}
}
string CallbackSig {
get {
string result = "";
for (int i = 0; i < parms.Count; i++) {
if (i > 0)
result += ", ";
Parameter p = parms [i];
if (p.PassAs != "" && !(p.Generatable is StructBase))
result += p.PassAs + " ";
result += (p.MarshalType + " arg" + i);
}
return result;
}
}
string CallbackName {
get { return Name + "SignalCallback"; }
}
string DelegateName {
get { return Name + "SignalDelegate"; }
}
private string EventArgsName {
get {
if (IsEventHandler)
return "EventArgs";
else
return Name + "Args";
}
}
private string EventArgsQualifiedName {
get {
if (IsEventHandler)
return "System.EventArgs";
else
return container_type.NS + "." + Name + "Args";
}
}
private string EventHandlerName {
get {
if (IsEventHandler)
return "EventHandler";
else if (SymbolTable.Table [container_type.NS + Name + "Handler"] != null)
return Name + "EventHandler";
else
return Name + "Handler";
}
}
private string EventHandlerQualifiedName {
get {
if (IsEventHandler)
return "System.EventHandler";
else
return container_type.NS + "." + EventHandlerName;
}
}
string ClassFieldName {
get {
return elem.HasAttribute ("field_name") ? elem.GetAttribute("field_name") : String.Empty;
}
}
private bool HasOutParams {
get {
foreach (Parameter p in parms) {
if (p.PassAs == "out")
return true;
}
return false;
}
}
private bool IsEventHandler {
get {
return retval.CSType == "void" && parms.Count == 1 && (parms [0].Generatable is ObjectGen || parms [0].Generatable is InterfaceGen);
}
}
private bool IsVoid {
get {
return retval.CSType == "void";
}
}
private string ReturnGType {
get {
IGeneratable igen = SymbolTable.Table [retval.CType];
if (igen is ObjectGen)
return "GLib.GType.Object";
if (igen is BoxedGen)
return retval.CSType + ".GType";
if (igen is EnumGen)
return retval.CSType + "GType.GType";
switch (retval.CSType) {
case "bool":
return "GLib.GType.Boolean";
case "string":
return "GLib.GType.String";
case "int":
return "GLib.GType.Int";
default:
throw new Exception (retval.CSType);
}
}
}
public string GenArgsInitialization (StreamWriter sw)
{
if (parms.Count > 1)
sw.WriteLine("\t\t\t\targs.Args = new object[" + (parms.Count - 1) + "];");
string finish = "";
for (int idx = 1; idx < parms.Count; idx++) {
Parameter p = parms [idx];
IGeneratable igen = p.Generatable;
if (p.PassAs != "out") {
if (igen is ManualGen) {
sw.WriteLine("\t\t\t\tif (arg{0} == IntPtr.Zero)", idx);
sw.WriteLine("\t\t\t\t\targs.Args[{0}] = null;", idx - 1);
sw.WriteLine("\t\t\t\telse {");
sw.WriteLine("\t\t\t\t\targs.Args[" + (idx - 1) + "] = " + p.FromNative ("arg" + idx) + ";");
sw.WriteLine("\t\t\t\t}");
} else
sw.WriteLine("\t\t\t\targs.Args[" + (idx - 1) + "] = " + p.FromNative ("arg" + idx) + ";");
}
if (igen is StructBase && p.PassAs == "ref")
finish += "\t\t\t\tif (arg" + idx + " != IntPtr.Zero) System.Runtime.InteropServices.Marshal.StructureToPtr (args.Args[" + (idx-1) + "], arg" + idx + ", false);\n";
else if (p.PassAs != "")
finish += "\t\t\t\targ" + idx + " = " + igen.ToNativeReturn ("((" + p.CSType + ")args.Args[" + (idx - 1) + "])") + ";\n";
}
return finish;
}
public void GenArgsCleanup (StreamWriter sw, string finish)
{
if (IsVoid && finish.Length == 0)
return;
sw.WriteLine("\n\t\t\ttry {");
sw.Write (finish);
if (!IsVoid) {
if (retval.CSType == "bool") {
sw.WriteLine ("\t\t\t\tif (args.RetVal == null)");
sw.WriteLine ("\t\t\t\t\treturn false;");
}
sw.WriteLine("\t\t\t\treturn " + SymbolTable.Table.ToNativeReturn (retval.CType, "((" + retval.CSType + ")args.RetVal)") + ";");
}
sw.WriteLine("\t\t\t} catch (Exception) {");
sw.WriteLine ("\t\t\t\tException ex = new Exception (\"args.RetVal or 'out' property unset or set to incorrect type in " + EventHandlerQualifiedName + " callback\");");
sw.WriteLine("\t\t\t\tGLib.ExceptionManager.RaiseUnhandledException (ex, true);");
sw.WriteLine ("\t\t\t\t// NOTREACHED: above call doesn't return.");
sw.WriteLine ("\t\t\t\tthrow ex;");
sw.WriteLine("\t\t\t}");
}
public void GenCallback (StreamWriter sw)
{
if (IsEventHandler)
return;
sw.WriteLine ("\t\t[GLib.CDeclCallback]");
sw.WriteLine ("\t\tdelegate " + retval.ToNativeType + " " + DelegateName + " (" + CallbackSig + ", IntPtr gch);");
sw.WriteLine ();
sw.WriteLine ("\t\tstatic " + retval.ToNativeType + " " + CallbackName + " (" + CallbackSig + ", IntPtr gch)");
sw.WriteLine("\t\t{");
sw.WriteLine("\t\t\t{0} args = new {0} ();", EventArgsQualifiedName);
sw.WriteLine("\t\t\ttry {");
sw.WriteLine("\t\t\t\tGLib.Signal sig = ((GCHandle) gch).Target as GLib.Signal;");
sw.WriteLine("\t\t\t\tif (sig == null)");
sw.WriteLine("\t\t\t\t\tthrow new Exception(\"Unknown signal GC handle received \" + gch);");
sw.WriteLine();
string finish = GenArgsInitialization (sw);
sw.WriteLine("\t\t\t\t{0} handler = ({0}) sig.Handler;", EventHandlerQualifiedName);
sw.WriteLine("\t\t\t\thandler (GLib.Object.GetObject (arg0), args);");
sw.WriteLine("\t\t\t} catch (Exception e) {");
sw.WriteLine("\t\t\t\tGLib.ExceptionManager.RaiseUnhandledException (e, false);");
sw.WriteLine("\t\t\t}");
GenArgsCleanup (sw, finish);
sw.WriteLine("\t\t}");
sw.WriteLine();
}
private bool NeedNew (ClassBase implementor)
{
return elem.HasAttribute ("new_flag") ||
(container_type != null && container_type.GetSignalRecursively (Name) != null) ||
(implementor != null && implementor.GetSignalRecursively (Name) != null);
}
public void GenEventHandler (GenerationInfo gen_info)
{
if (IsEventHandler)
return;
string ns = container_type.NS;
StreamWriter sw = gen_info.OpenStream (EventHandlerName);
sw.WriteLine ("namespace " + ns + " {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ();
sw.WriteLine ("\tpublic delegate void " + EventHandlerName + "(object o, " + EventArgsName + " args);");
sw.WriteLine ();
sw.WriteLine ("\tpublic class " + EventArgsName + " : GLib.SignalArgs {");
for (int i = 1; i < parms.Count; i++) {
sw.WriteLine ("\t\tpublic " + parms[i].CSType + " " + parms[i].StudlyName + "{");
if (parms[i].PassAs == "ref" && parms[i].CSType == "int") {
// Special hack around GtkEditable::text_inserted G_TYPE_POINTER usage
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn System.Runtime.InteropServices.Marshal.ReadInt32 ((IntPtr) Args[" + (i - 1) + "]);");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t\tset {");
sw.WriteLine ("\t\t\t\tSystem.Runtime.InteropServices.Marshal.WriteInt32 ((IntPtr) Args[" + (i - 1) + "], value);");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
continue;
}
if (parms[i].PassAs != "out") {
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn (" + parms[i].CSType + ") Args[" + (i - 1) + "];");
sw.WriteLine ("\t\t\t}");
}
if (parms[i].PassAs != "") {
sw.WriteLine ("\t\t\tset {");
sw.WriteLine ("\t\t\t\tArgs[" + (i - 1) + "] = (" + parms[i].CSType + ")value;");
sw.WriteLine ("\t\t\t}");
}
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
sw.WriteLine ("\t}");
sw.WriteLine ("}");
sw.Close ();
}
private void GenVMDeclaration (StreamWriter sw, ClassBase implementor)
{
VMSignature vmsig = new VMSignature (parms);
sw.WriteLine ("\t\t[GLib.DefaultSignalHandler(Type=typeof(" + (implementor != null ? implementor.QualifiedName : container_type.QualifiedName) + "), ConnectionMethod=\"Override" + Name +"\")]");
sw.Write ("\t\tprotected ");
if (NeedNew (implementor))
sw.Write ("new ");
sw.WriteLine ("virtual {0} {1} ({2})", retval.CSType, "On" + Name, vmsig.ToString ());
}
private string CastFromInt (string type)
{
return type != "int" ? "(" + type + ") " : "";
}
private string GlueCallString {
get {
string result = "Handle";
for (int i = 1; i < parms.Count; i++) {
Parameter p = parms [i];
IGeneratable igen = p.Generatable;
if (i > 1 && parms [i - 1].IsString && p.IsLength && p.PassAs == String.Empty) {
string string_name = parms [i - 1].Name;
result += ", " + igen.CallByName (CastFromInt (p.CSType) + "System.Text.Encoding.UTF8.GetByteCount (" + string_name + ")");
continue;
}
p.CallName = p.Name;
string call_parm = p.CallString;
if (p.IsUserData && parms.IsHidden (p) && !parms.HideData && (i == 1 || parms [i - 1].Scope != "notified")) {
call_parm = "IntPtr.Zero";
}
result += ", " + call_parm;
}
return result;
}
}
private string GlueSignature {
get {
string result = String.Empty;
for (int i = 0; i < parms.Count; i++)
result += parms[i].CType.Replace ("const-", "const ") + " " + parms[i].Name + (i == parms.Count-1 ? "" : ", ");
return result;
}
}
private string DefaultGlueValue {
get {
string val = retval.DefaultValue;
switch (val) {
case "null":
return "NULL";
case "false":
return "FALSE";
case "true":
return "TRUE";
default:
return val;
}
}
}
private void GenGlueVirtualMethod (GenerationInfo gen_info)
{
StreamWriter glue = gen_info.GlueWriter;
string glue_name = String.Format ("{0}sharp_{1}_base_{2}", container_type.NS.ToLower ().Replace (".", "_"), container_type.Name.ToLower (), ClassFieldName);
glue.WriteLine ("{0} {1} ({2});\n", retval.CType, glue_name, GlueSignature);
glue.WriteLine ("{0}\n{1} ({2})", retval.CType, glue_name, GlueSignature);
glue.WriteLine ("{");
glue.WriteLine ("\t{0}Class *klass = ({0}Class *) get_threshold_class (G_OBJECT ({1}));", container_type.CName, parms[0].Name);
glue.Write ("\tif (klass->{0})\n\t\t", ClassFieldName);
if (!IsVoid)
glue.Write ("return ");
glue.Write ("(* klass->{0}) (", ClassFieldName);
for (int i = 0; i < parms.Count; i++)
glue.Write (parms[i].Name + (i == parms.Count - 1 ? "" : ", "));
glue.WriteLine (");");
if (!IsVoid)
glue.WriteLine ("\treturn " + DefaultGlueValue + ";");
glue.WriteLine ("}");
StreamWriter sw = gen_info.Writer;
sw.WriteLine ("\t\t[DllImport (\"{0}\")]", gen_info.GluelibName);
sw.WriteLine ("\t\tstatic extern {0} {1} ({2});\n", retval.MarshalType, glue_name, parms.ImportSignature);
GenVMDeclaration (sw, null);
sw.WriteLine ("\t\t{");
MethodBody body = new MethodBody (parms);
body.Initialize (gen_info, false, false, String.Empty);
sw.WriteLine ("\t\t\t{0}{1} ({2});", IsVoid ? "" : retval.MarshalType + " __ret = ", glue_name, GlueCallString);
body.Finish (sw, "");
if (!IsVoid)
sw.WriteLine ("\t\t\treturn {0};", retval.FromNative ("__ret"));
sw.WriteLine ("\t\t}\n");
}
private void GenChainVirtualMethod (StreamWriter sw, ClassBase implementor)
{
GenVMDeclaration (sw, implementor);
sw.WriteLine ("\t\t{");
if (IsVoid)
sw.WriteLine ("\t\t\tGLib.Value ret = GLib.Value.Empty;");
else
sw.WriteLine ("\t\t\tGLib.Value ret = new GLib.Value (" + ReturnGType + ");");
sw.WriteLine ("\t\t\tGLib.ValueArray inst_and_params = new GLib.ValueArray (" + parms.Count + ");");
sw.WriteLine ("\t\t\tGLib.Value[] vals = new GLib.Value [" + parms.Count + "];");
sw.WriteLine ("\t\t\tvals [0] = new GLib.Value (this);");
sw.WriteLine ("\t\t\tinst_and_params.Append (vals [0]);");
string cleanup = "";
for (int i = 1; i < parms.Count; i++) {
Parameter p = parms [i];
if (p.PassAs != "") {
if (SymbolTable.Table.IsBoxed (p.CType)) {
if (p.PassAs == "ref")
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (" + p.Name + ");");
else
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value ((GLib.GType)typeof (" + p.CSType + "));");
cleanup += "\t\t\t" + p.Name + " = (" + p.CSType + ") vals [" + i + "];\n";
} else {
if (p.PassAs == "ref")
sw.WriteLine ("\t\t\tIntPtr " + p.Name + "_ptr = GLib.Marshaller.StructureToPtrAlloc (" + p.Generatable.CallByName (p.Name) + ");");
else
sw.WriteLine ("\t\t\tIntPtr " + p.Name + "_ptr = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (" + p.MarshalType + ")));");
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (" + p.Name + "_ptr);");
cleanup += "\t\t\t" + p.Name + " = " + p.FromNative ("(" + p.MarshalType + ") Marshal.PtrToStructure (" + p.Name + "_ptr, typeof (" + p.MarshalType + "))") + ";\n";
cleanup += "\t\t\tMarshal.FreeHGlobal (" + p.Name + "_ptr);\n";
}
} else if (p.IsLength && parms [i - 1].IsString)
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (System.Text.Encoding.UTF8.GetByteCount (" + parms [i-1].Name + "));");
else
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (" + p.Name + ");");
sw.WriteLine ("\t\t\tinst_and_params.Append (vals [" + i + "]);");
}
sw.WriteLine ("\t\t\tg_signal_chain_from_overridden (inst_and_params.ArrayPtr, ref ret);");
if (cleanup != "")
sw.WriteLine (cleanup);
sw.WriteLine ("\t\t\tforeach (GLib.Value v in vals)");
sw.WriteLine ("\t\t\t\tv.Dispose ();");
if (!IsVoid) {
IGeneratable igen = SymbolTable.Table [retval.CType];
sw.WriteLine ("\t\t\t" + retval.CSType + " result = (" + (igen is EnumGen ? retval.CSType + ") (Enum" : retval.CSType) + ") ret;");
sw.WriteLine ("\t\t\tret.Dispose ();");
sw.WriteLine ("\t\t\treturn result;");
}
sw.WriteLine ("\t\t}\n");
}
private void GenDefaultHandlerDelegate (GenerationInfo gen_info, ClassBase implementor)
{
StreamWriter sw = gen_info.Writer;
StreamWriter glue;
bool use_glue = gen_info.GlueEnabled && implementor == null && ClassFieldName.Length > 0;
string glue_name = String.Empty;
ManagedCallString call = new ManagedCallString (parms, true);
sw.WriteLine ("\t\t[GLib.CDeclCallback]");
sw.WriteLine ("\t\tdelegate " + retval.ToNativeType + " " + Name + "VMDelegate (" + parms.ImportSignature + ");\n");
if (use_glue) {
glue = gen_info.GlueWriter;
glue_name = String.Format ("{0}sharp_{1}_override_{2}", container_type.NS.ToLower ().Replace (".", "_"), container_type.Name.ToLower (), ClassFieldName);
sw.WriteLine ("\t\t[DllImport (\"{0}\")]", gen_info.GluelibName);
sw.WriteLine ("\t\tstatic extern void {0} (IntPtr gtype, {1}VMDelegate cb);\n", glue_name, Name);
glue.WriteLine ("void {0} (GType gtype, gpointer cb);\n", glue_name);
glue.WriteLine ("void\n{0} (GType gtype, gpointer cb)", glue_name);
glue.WriteLine ("{");
glue.WriteLine ("\tGObjectClass *klass = g_type_class_peek (gtype);");
glue.WriteLine ("\tif (klass == NULL)");
glue.WriteLine ("\t\tklass = g_type_class_ref (gtype);");
glue.WriteLine ("\t(({0} *)klass)->{1} = cb;", container_type.CName + "Class", ClassFieldName);
glue.WriteLine ("}\n");
}
sw.WriteLine ("\t\tstatic {0} {1};\n", Name + "VMDelegate", Name + "VMCallback");
sw.WriteLine ("\t\tstatic " + retval.ToNativeType + " " + Name.ToLower() + "_cb (" + parms.ImportSignature + ")");
sw.WriteLine ("\t\t{");
string unconditional = call.Unconditional ("\t\t\t");
if (unconditional.Length > 0)
sw.WriteLine (unconditional);
sw.WriteLine ("\t\t\ttry {");
sw.WriteLine ("\t\t\t\t{0} {1}_managed = GLib.Object.GetObject ({1}, false) as {0};", implementor != null ? implementor.Name : container_type.Name, parms[0].Name);
sw.Write (call.Setup ("\t\t\t\t"));
sw.Write ("\t\t\t\t{0}", IsVoid ? "" : retval.CSType == retval.ToNativeType ? "return " : retval.CSType + " raw_ret = ");
sw.WriteLine ("{2}_managed.{0} ({1});", "On" + Name, call.ToString (), parms[0].Name);
sw.Write (call.Finish ("\t\t\t\t"));
if (!IsVoid && retval.CSType != retval.ToNativeType)
sw.WriteLine ("\t\t\t\treturn {0};", SymbolTable.Table.ToNativeReturn (retval.CType, "raw_ret"));
sw.WriteLine ("\t\t\t} catch (Exception e) {");
bool fatal = HasOutParams || !IsVoid;
sw.WriteLine ("\t\t\t\tGLib.ExceptionManager.RaiseUnhandledException (e, " + (fatal ? "true" : "false") + ");");
if (fatal) {
sw.WriteLine ("\t\t\t\t// NOTREACHED: above call doesn't return");
sw.WriteLine ("\t\t\t\tthrow e;");
}
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}\n");
sw.WriteLine ("\t\tprivate static void Override" + Name + " (GLib.GType gtype)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tif (" + Name + "VMCallback == null)");
sw.WriteLine ("\t\t\t\t" + Name + "VMCallback = new " + Name + "VMDelegate (" + Name.ToLower() + "_cb);");
if (use_glue)
sw.WriteLine ("\t\t\t{0} (gtype.Val, {1}VMCallback);", glue_name, Name);
else
sw.WriteLine ("\t\t\tOverrideVirtualMethod (gtype, " + CName + ", " + Name + "VMCallback);");
sw.WriteLine ("\t\t}\n");
}
public void GenEvent (StreamWriter sw, ClassBase implementor, string target)
{
string args_type = IsEventHandler ? "" : ", typeof (" + EventArgsQualifiedName + ")";
if (Marshaled) {
GenCallback (sw);
args_type = ", new " + DelegateName + "(" + CallbackName + ")";
}
sw.WriteLine("\t\t[GLib.Signal("+ CName + ")]");
sw.Write("\t\tpublic ");
if (NeedNew (implementor))
sw.Write("new ");
sw.WriteLine("event " + EventHandlerQualifiedName + " " + Name + " {");
sw.WriteLine("\t\t\tadd {");
sw.WriteLine("\t\t\t\tGLib.Signal sig = GLib.Signal.Lookup (" + target + ", " + CName + args_type + ");");
sw.WriteLine("\t\t\t\tsig.AddDelegate (value);");
sw.WriteLine("\t\t\t}");
sw.WriteLine("\t\t\tremove {");
sw.WriteLine("\t\t\t\tGLib.Signal sig = GLib.Signal.Lookup (" + target + ", " + CName + args_type + ");");
sw.WriteLine("\t\t\t\tsig.RemoveDelegate (value);");
sw.WriteLine("\t\t\t}");
sw.WriteLine("\t\t}");
sw.WriteLine();
}
public void Generate (GenerationInfo gen_info, ClassBase implementor)
{
StreamWriter sw = gen_info.Writer;
if (implementor == null)
GenEventHandler (gen_info);
GenDefaultHandlerDelegate (gen_info, implementor);
if (gen_info.GlueEnabled && implementor == null && ClassFieldName.Length > 0)
GenGlueVirtualMethod (gen_info);
else
GenChainVirtualMethod (sw, implementor);
GenEvent (sw, implementor, "this");
Statistics.SignalCount++;
}
}
}
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