no more submodule
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275
GtkSharp/Source/Tools/GapiCodegen/StructField.cs
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275
GtkSharp/Source/Tools/GapiCodegen/StructField.cs
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// GtkSharp.Generation.StructField.cs - The Structure Field generation
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// Class.
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//
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// Author: Mike Kestner <mkestner@ximian.com>
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//
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// Copyright (c) 2004-2005 Novell, Inc.
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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.IO;
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using System.Xml;
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public class StructField : FieldBase {
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public static int bitfields;
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public StructField (XmlElement elem, ClassBase container_type) : base (elem, container_type) {}
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protected override string DefaultAccess {
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get {
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if (IsPadding)
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return "private";
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return "public";
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}
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}
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public int ArrayLength {
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get {
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if (!IsArray)
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return 0;
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int result;
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try {
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result = Int32.Parse (elem.GetAttribute("array_len"));
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} catch (Exception) {
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LogWriter log = new LogWriter (container_type.Name + "." + Name);
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log.Warn("Non-numeric array_len: \"" + elem.GetAttribute("array_len") +
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"\" incorrectly generated");
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result = 0;
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}
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return result;
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}
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}
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public bool IsNullTermArray {
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get { return elem.GetAttributeAsBoolean ("null_term_array"); }
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}
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public new string CSType {
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get {
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string type = base.CSType;
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if (IsArray)
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type += "[]";
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else if ((IsPointer || SymbolTable.Table.IsOpaque (CType)) && type != "string")
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type = "IntPtr";
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return type;
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}
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}
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bool visible = false;
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internal bool Visible {
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get {
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return visible;
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}
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}
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public string EqualityName {
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get {
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SymbolTable table = SymbolTable.Table;
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string wrapped_name = SymbolTable.Table.MangleName (CName);
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IGeneratable gen = table [CType];
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if (IsArray && IsNullTermArray)
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return StudlyName + "Ptr";
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else if (IsArray || gen is IAccessor)
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return Access == "public" ? StudlyName : Name;
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else if (IsBitfield)
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return Name;
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else if (IsPointer && (gen is StructGen || gen is BoxedGen || gen is UnionGen))
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return Access != "private" ? wrapped_name : Name;
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else if (IsPointer && CSType != "string")
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return Name;
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else
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return Access == "public" ? StudlyName : Name;
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}
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}
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bool IsFixedSizeArray() {
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return IsArray && !IsNullTermArray && ArrayLength != 0;
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}
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public virtual bool IsCPointer() {
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IGeneratable gen = SymbolTable.Table[CType];
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return (CType.EndsWith("*") ||
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CType.EndsWith ("pointer") ||
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gen is CallbackGen ||
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cstype == "string" ||
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(CType == "guint8" && (IsArray && IsNullTermArray)) ||
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elem.GetAttributeAsBoolean("is_callback"));
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}
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public virtual string GenerateGetSizeOf(string indent) {
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string cstype = SymbolTable.Table.GetCSType(CType, true);
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string res = "";
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IGeneratable gen = SymbolTable.Table[CType];
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var is_pointer = false;
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if (IsCPointer()) {
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is_pointer = true;
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cstype = "IntPtr";
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} else if (gen != null) {
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res = gen.GenerateGetSizeOf();
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}
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if (res != null && res != "") {
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if (IsFixedSizeArray())
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res += " * " + ArrayLength;
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return indent + res;
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}
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var _enum = gen as EnumGen;
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if (_enum != null && !is_pointer)
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res = "(uint) sizeof(" + cstype + ")";
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else
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res = "(uint) " + GenerationInfo.GetSizeOfExpression(cstype);
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if (IsFixedSizeArray())
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res += " * " + ArrayLength;
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return res;
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}
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public bool IsPadding {
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get {
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if (elem.GetAttributeAsBoolean ("padding"))
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return elem.GetAttributeAsBoolean ("padding");
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return (elem.GetAttribute ("access") == "private" && (
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CName.StartsWith ("dummy") || CName.StartsWith ("padding")));
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}
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}
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public bool IsPointer {
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get {
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return IsCPointer();
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}
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}
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public new string Name {
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get {
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string result = "";
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if ((IsPointer || SymbolTable.Table.IsOpaque (CType)) && CSType != "string")
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result = "_";
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result += SymbolTable.Table.MangleName (CName);
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return result;
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}
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}
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public virtual string StudlyName {
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get {
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string studly = base.Name;
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if (studly == "")
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throw new Exception (CName + "API file must be regenerated with a current version of the GAPI parser. It is incompatible with this version of the GAPI code generator.");
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return studly;
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}
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}
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public override void Generate (GenerationInfo gen_info, string indent)
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{
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Generate(gen_info, indent, false, gen_info.Writer);
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}
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public void Generate (GenerationInfo gen_info, string indent, bool use_cnames,
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TextWriter sw)
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{
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if (Hidden && !use_cnames)
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return;
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visible = Access != "private";
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SymbolTable table = SymbolTable.Table;
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string wrapped = table.GetCSType (CType);
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string wrapped_name = SymbolTable.Table.MangleName (CName);
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string name = Name;
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string studly_name = StudlyName;
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string cstype = CSType;
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IGeneratable gen = table [CType];
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if (use_cnames) {
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name = studly_name = wrapped_name = SymbolTable.Table.MangleName (CName).Replace(".", "_");
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var mangen = gen as ManualGen;
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if (mangen != null) {
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if (mangen.AbiType != null)
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cstype = mangen.AbiType;
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}
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if (IsCPointer())
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cstype = "IntPtr";
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}
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if (IsArray && !IsNullTermArray) {
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sw.WriteLine (indent + "[MarshalAs (UnmanagedType.ByValArray, SizeConst=" + ArrayLength + ")]");
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sw.WriteLine (indent + "{0} {1} {2};", Access, cstype, studly_name);
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} else if (IsArray && IsNullTermArray) {
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sw.WriteLine (indent + "private {0} {1};", "IntPtr", studly_name+ "Ptr");
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if ((Readable || Writable) && Access == "public") {
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sw.WriteLine (indent + "public {0} {1} {{", cstype, studly_name);
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if (Readable)
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sw.WriteLine (indent + "\tget {{ return GLib.Marshaller.StructArrayFromNullTerminatedIntPtr<{0}> ({1}); }}",
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base.CSType, studly_name + "Ptr");
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if (Writable)
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sw.WriteLine (indent + "\tset {{ {0} = GLib.Marshaller.StructArrayToNullTerminatedStructArrayIntPtr<{1}> (value); }}",
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studly_name + "Ptr", base.CSType);
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sw.WriteLine (indent + "}");
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}
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} else if (IsBitfield) {
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base.Generate (gen_info, indent);
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} else if (gen is IAccessor) {
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sw.WriteLine (indent + "private {0} {1};", gen.MarshalType, name);
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if (Access != "private") {
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IAccessor acc = table [CType] as IAccessor;
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sw.WriteLine (indent + Access + " " + wrapped + " " + studly_name + " {");
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acc.WriteAccessors (sw, indent + "\t", name);
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sw.WriteLine (indent + "}");
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}
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} else if (IsPointer && (gen is StructGen || gen is BoxedGen || gen is UnionGen)) {
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sw.WriteLine (indent + "private {0} {1};", cstype, name);
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sw.WriteLine ();
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if (Access != "private") {
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sw.WriteLine (indent + Access + " " + wrapped + " " + wrapped_name + " {");
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sw.WriteLine (indent + "\tget { return " + table.FromNative (CType, name) + "; }");
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sw.WriteLine (indent + "}");
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}
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} else if (IsPointer && cstype != "string") {
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// FIXME: probably some fields here which should be visible.
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visible = false;
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sw.WriteLine (indent + "private {0} {1};", cstype, name);
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} else {
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sw.WriteLine (indent + "{0} {1} {2};", Access, cstype, Access == "public" ? studly_name : name);
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}
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}
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}
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}
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