no more submodule
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254
GtkSharp/Source/Tools/GapiCodegen/OpaqueGen.cs
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254
GtkSharp/Source/Tools/GapiCodegen/OpaqueGen.cs
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// GtkSharp.Generation.OpaqueGen.cs - The Opaque Generatable.
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// Copyright (c) 2001-2003 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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namespace GtkSharp.Generation {
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using System;
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using System.Collections;
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using System.IO;
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using System.Xml;
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public class OpaqueGen : HandleBase {
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public OpaqueGen (XmlElement ns, XmlElement elem) : base (ns, elem) {}
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public override string FromNative(string var, bool owned)
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{
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return var + " == IntPtr.Zero ? null : (" + QualifiedName + ") GLib.Opaque.GetOpaque (" + var + ", typeof (" + QualifiedName + "), " + (owned ? "true" : "false") + ")";
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}
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private bool DisableRawCtor {
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get {
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return Elem.GetAttributeAsBoolean ("disable_raw_ctor");
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}
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}
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public override void Generate (GenerationInfo gen_info)
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{
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gen_info.CurrentType = QualifiedName;
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StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name, NS);
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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 ("\tusing System.Collections;");
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sw.WriteLine ("\tusing System.Collections.Generic;");
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sw.WriteLine ("\tusing System.Runtime.InteropServices;");
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sw.WriteLine ();
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sw.WriteLine ("#region Autogenerated code");
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SymbolTable table = SymbolTable.Table;
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Method ref_, unref, dispose, set_gvalue;
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GetSpecialMethods (out ref_, out unref, out dispose, out set_gvalue);
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if (IsDeprecated)
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sw.WriteLine ("\t[Obsolete]");
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sw.Write ("\t{0} partial {1}class " + Name, IsInternal ? "internal" : "public", IsAbstract ? "abstract " : String.Empty);
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string cs_parent = table.GetCSType(Elem.GetAttribute("parent"));
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if (cs_parent != "")
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sw.Write (" : " + cs_parent);
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else
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sw.Write (" : GLib.Opaque");
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foreach (string iface in managed_interfaces) {
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if (Parent != null && Parent.Implements (iface))
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continue;
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sw.Write (", " + iface);
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}
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sw.WriteLine (" {");
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sw.WriteLine ();
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GenConstants (gen_info);
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GenFields (gen_info);
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GenMethods (gen_info, null, null);
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GenCtors (gen_info);
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if (ref_ != null) {
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ref_.GenerateImport (sw);
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sw.WriteLine ("\t\tprotected override void Ref (IntPtr raw)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (!Owned) {");
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sw.WriteLine ("\t\t\t\t" + ref_.CName + " (raw);");
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sw.WriteLine ("\t\t\t\tOwned = true;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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if (ref_.IsDeprecated) {
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sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now refcounted automatically\")]");
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if (ref_.ReturnType == "void")
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sw.WriteLine ("\t\tpublic void Ref () {}");
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else
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sw.WriteLine ("\t\tpublic " + Name + " Ref () { return this; }");
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sw.WriteLine ();
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}
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}
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bool finalizer_needed = false;
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if (unref != null) {
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unref.GenerateImport (sw);
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sw.WriteLine ("\t\tprotected override void Unref (IntPtr raw)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (Owned) {");
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sw.WriteLine ("\t\t\t\t" + unref.CName + " (raw);");
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sw.WriteLine ("\t\t\t\tOwned = false;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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if (unref.IsDeprecated) {
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sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now refcounted automatically\")]");
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sw.WriteLine ("\t\tpublic void Unref () {}");
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sw.WriteLine ();
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}
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finalizer_needed = true;
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}
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if (dispose != null) {
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dispose.GenerateImport (sw);
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sw.WriteLine ("\t\tprotected override void Free (IntPtr raw)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\t" + dispose.CName + " (raw);");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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if (dispose.IsDeprecated) {
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sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now freed automatically\")]");
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sw.WriteLine ("\t\tpublic void " + dispose.Name + " () {}");
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sw.WriteLine ();
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}
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finalizer_needed = true;
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}
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if (finalizer_needed) {
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sw.WriteLine ("\t\tclass FinalizerInfo {");
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sw.WriteLine ("\t\t\tIntPtr handle;");
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sw.WriteLine ("\t\t\tpublic uint timeoutHandlerId;");
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sw.WriteLine ();
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sw.WriteLine ("\t\t\tpublic FinalizerInfo (IntPtr handle)");
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sw.WriteLine ("\t\t\t{");
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sw.WriteLine ("\t\t\t\tthis.handle = handle;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\t\tpublic bool Handler ()");
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sw.WriteLine ("\t\t\t{");
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if (dispose != null)
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sw.WriteLine ("\t\t\t\t{0} (handle);", dispose.CName);
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else if (unref != null)
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sw.WriteLine ("\t\t\t\t{0} (handle);", unref.CName);
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sw.WriteLine ("\t\t\t\tGLib.Timeout.Remove(timeoutHandlerId);");
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sw.WriteLine ("\t\t\t\treturn false;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\t~{0} ()", Name);
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (!Owned)");
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sw.WriteLine ("\t\t\t\treturn;");
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sw.WriteLine ("\t\t\tFinalizerInfo info = new FinalizerInfo (Handle);");
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sw.WriteLine ("\t\t\tinfo.timeoutHandlerId = GLib.Timeout.Add (50, new GLib.TimeoutHandler (info.Handler));");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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#if false
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Method copy = Methods ["Copy"] as Method;
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if (copy != null && copy.Parameters.Count == 0) {
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sw.WriteLine ("\t\tprotected override GLib.Opaque Copy (IntPtr raw)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tGLib.Opaque result = new " + QualifiedName + " (" + copy.CName + " (raw));");
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sw.WriteLine ("\t\t\tresult.Owned = true;");
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sw.WriteLine ("\t\t\treturn result;");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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#endif
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if (set_gvalue != null) {
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sw.WriteLine("\t\tdelegate IntPtr d_{0}(ref GLib.Value val, IntPtr obj);", set_gvalue.CName);
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sw.WriteLine("\t\tstatic d_{0} {0} = FuncLoader.LoadFunction<d_{0}>(FuncLoader.GetProcAddress(GLibrary.Load({1}), \"{0}\"));", set_gvalue.CName, LibraryName);
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic void SetGValue (ref GLib.Value val)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\t{0} (ref val, Handle);", set_gvalue.CName);
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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GenerateStructureABI(gen_info);
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sw.WriteLine ("#endregion");
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sw.WriteLine ("\t}");
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sw.WriteLine ("}");
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sw.Close ();
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gen_info.Writer = null;
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Statistics.OpaqueCount++;
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}
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void GetSpecialMethods (out Method ref_, out Method unref, out Method dispose, out Method set_gvalue)
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{
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ref_ = CheckSpecialMethod (GetMethod ("Ref"));
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unref = CheckSpecialMethod (GetMethod ("Unref"));
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dispose = GetMethod ("Free");
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if (dispose == null) {
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dispose = GetMethod ("Destroy");
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if (dispose == null)
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dispose = GetMethod ("Dispose");
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}
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dispose = CheckSpecialMethod (dispose);
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set_gvalue = GetMethod ("SetGValue");
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Methods.Remove ("SetGValue");
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}
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Method CheckSpecialMethod (Method method)
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{
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if (method == null)
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return null;
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if (method.ReturnType != "void" &&
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method.ReturnType != QualifiedName)
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return null;
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if (method.Signature.ToString () != "")
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return null;
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Methods.Remove (method.Name);
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return method;
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}
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protected override void GenCtors (GenerationInfo gen_info)
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{
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if (!DisableRawCtor) {
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gen_info.Writer.WriteLine("\t\tpublic " + Name + "(IntPtr raw) : base(raw) {}");
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gen_info.Writer.WriteLine();
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}
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base.GenCtors (gen_info);
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}
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}
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}
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