mirror of
https://github.com/Ryujinx/GtkSharp.git
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2ba496479f
* generator/*.cs: Add a LogWriter class which formats warnings consistently on the console. Supports the concept of non-fatal validation warnings, since it doesn't rely on the unrolling of the validation stack to associate a warning to a given type. Main purpose was to add a non-fatal warning for missing element_type attributes on list return values, though it results in cleaner log output, and also updates some warning messages to be more helpful in how to resolve them.
275 lines
9 KiB
C#
275 lines
9 KiB
C#
// GtkSharp.Generation.FieldBase.cs - base class for struct and object
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// fields
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//
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// Copyright (c) 2004 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.Collections;
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using System.IO;
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using System.Xml;
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public abstract class FieldBase : PropertyBase {
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public FieldBase (XmlElement elem, ClassBase container_type) : base (elem, container_type) {}
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public virtual bool Validate (LogWriter log)
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{
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log.Member = Name;
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if (!Ignored && !Hidden && CSType == "") {
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log.Warn ("field has unknown type: " + CType);
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Statistics.ThrottledCount++;
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return false;
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}
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return true;
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}
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protected virtual bool Readable {
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get {
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return elem.GetAttribute ("readable") != "false";
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}
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}
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protected virtual bool Writable {
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get {
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return elem.GetAttribute ("writeable") != "false";
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}
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}
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protected abstract string DefaultAccess { get; }
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protected string Access {
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get {
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return elem.HasAttribute ("access") ? elem.GetAttribute ("access") : DefaultAccess;
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}
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}
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public bool IsArray {
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get {
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return elem.HasAttribute("array_len") || elem.HasAttribute("array");
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}
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}
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public bool IsBitfield {
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get {
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return elem.HasAttribute("bits");
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}
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}
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public bool Ignored {
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get {
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if (container_type.GetProperty (Name) != null)
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return true;
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if (IsArray)
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return true;
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if (Access == "private" && (Getter == null) && (Setter == null))
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return true;
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return false;
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}
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}
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string getterName, setterName;
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string getOffsetName, offsetName;
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void CheckGlue ()
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{
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getterName = setterName = getOffsetName = null;
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if (Access != "public")
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return;
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string prefix = (container_type.NS + "Sharp_" + container_type.NS + "_" + container_type.Name).Replace(".", "__").ToLower ();
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if (IsBitfield) {
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if (Readable && Getter == null)
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getterName = prefix + "_get_" + CName;
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if (Writable && Setter == null)
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setterName = prefix + "_set_" + CName;
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} else {
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if ((Readable && Getter == null) || (Writable && Setter == null)) {
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offsetName = CName + "_offset";
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getOffsetName = prefix + "_get_" + offsetName;
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}
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}
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}
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protected override void GenerateImports (GenerationInfo gen_info, string indent)
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{
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StreamWriter sw = gen_info.Writer;
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SymbolTable table = SymbolTable.Table;
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if (getterName != null) {
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sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
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sw.WriteLine (indent + "extern static {0} {1} ({2} raw);",
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table.GetMarshalType (CType), getterName,
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container_type.MarshalType);
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}
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if (setterName != null) {
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sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
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sw.WriteLine (indent + "extern static void {0} ({1} raw, {2} value);",
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setterName, container_type.MarshalType, table.GetMarshalType (CType));
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}
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if (getOffsetName != null) {
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sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
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sw.WriteLine (indent + "extern static uint {0} ();", getOffsetName);
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sw.WriteLine ();
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sw.WriteLine (indent + "static uint " + offsetName + " = " + getOffsetName + " ();");
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}
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base.GenerateImports (gen_info, indent);
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}
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public virtual void Generate (GenerationInfo gen_info, string indent)
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{
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if (Ignored || Hidden)
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return;
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CheckGlue ();
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if ((getterName != null || setterName != null || getOffsetName != null) && gen_info.GlueWriter == null) {
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LogWriter log = new LogWriter (container_type.QualifiedName);
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log.Member = Name;
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log.Warn ("needs glue for field access. Specify --glue-filename");
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return;
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}
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GenerateImports (gen_info, indent);
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SymbolTable table = SymbolTable.Table;
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StreamWriter sw = gen_info.Writer;
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string modifiers = elem.HasAttribute ("new_flag") ? "new " : "";
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bool is_struct = table.IsStruct (CType) || table.IsBoxed (CType);
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sw.WriteLine (indent + "public " + modifiers + CSType + " " + Name + " {");
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if (Getter != null) {
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sw.Write (indent + "\tget ");
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Getter.GenerateBody (gen_info, container_type, "\t");
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sw.WriteLine ("");
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} else if (getterName != null) {
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sw.WriteLine (indent + "\tget {");
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container_type.Prepare (sw, indent + "\t\t");
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sw.WriteLine (indent + "\t\t" + CSType + " result = " + table.FromNative (ctype, getterName + " (" + container_type.CallByName () + ")") + ";");
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container_type.Finish (sw, indent + "\t\t");
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sw.WriteLine (indent + "\t\treturn result;");
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sw.WriteLine (indent + "\t}");
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} else if (Readable && offsetName != null) {
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sw.WriteLine (indent + "\tget {");
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sw.WriteLine (indent + "\t\tunsafe {");
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if (is_struct) {
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sw.WriteLine (indent + "\t\t\t" + CSType + "* raw_ptr = (" + CSType + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
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sw.WriteLine (indent + "\t\t\treturn *raw_ptr;");
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} else {
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sw.WriteLine (indent + "\t\t\t" + table.GetMarshalType (CType) + "* raw_ptr = (" + table.GetMarshalType (CType) + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
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sw.WriteLine (indent + "\t\t\treturn " + table.FromNative (ctype, "(*raw_ptr)") + ";");
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}
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sw.WriteLine (indent + "\t\t}");
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sw.WriteLine (indent + "\t}");
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}
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IGeneratable gen = table [CType];
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string to_native = (gen is IManualMarshaler) ? (gen as IManualMarshaler).AllocNative ("value") : gen.CallByName ("value");
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if (Setter != null) {
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sw.Write (indent + "\tset ");
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Setter.GenerateBody (gen_info, container_type, "\t");
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sw.WriteLine ("");
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} else if (setterName != null) {
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sw.WriteLine (indent + "\tset {");
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container_type.Prepare (sw, indent + "\t\t");
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sw.WriteLine (indent + "\t\t" + setterName + " (" + container_type.CallByName () + ", " + to_native + ");");
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container_type.Finish (sw, indent + "\t\t");
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sw.WriteLine (indent + "\t}");
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} else if (Writable && offsetName != null) {
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sw.WriteLine (indent + "\tset {");
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sw.WriteLine (indent + "\t\tunsafe {");
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if (is_struct) {
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sw.WriteLine (indent + "\t\t\t" + CSType + "* raw_ptr = (" + CSType + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
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sw.WriteLine (indent + "\t\t\t*raw_ptr = value;");
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} else {
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sw.WriteLine (indent + "\t\t\t" + table.GetMarshalType (CType) + "* raw_ptr = (" + table.GetMarshalType (CType) + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
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sw.WriteLine (indent + "\t\t\t*raw_ptr = " + to_native + ";");
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}
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sw.WriteLine (indent + "\t\t}");
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sw.WriteLine (indent + "\t}");
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}
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sw.WriteLine (indent + "}");
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sw.WriteLine ("");
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if (getterName != null || setterName != null || getOffsetName != null)
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GenerateGlue (gen_info);
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}
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protected void GenerateGlue (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.GlueWriter;
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SymbolTable table = SymbolTable.Table;
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string FieldCType = CType.Replace ("-", " ");
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bool byref = table[CType] is ByRefGen || table[CType] is StructGen;
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string GlueCType = byref ? FieldCType + " *" : FieldCType;
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string ContainerCType = container_type.CName;
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string ContainerCName = container_type.Name.ToLower ();
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if (getterName != null) {
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sw.WriteLine ("{0} {1} ({2} *{3});",
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GlueCType, getterName, ContainerCType, ContainerCName);
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}
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if (setterName != null) {
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sw.WriteLine ("void {0} ({1} *{2}, {3} value);",
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setterName, ContainerCType, ContainerCName, GlueCType);
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}
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if (getOffsetName != null)
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sw.WriteLine ("guint {0} (void);", getOffsetName);
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sw.WriteLine ("");
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if (getterName != null) {
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sw.WriteLine (GlueCType);
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sw.WriteLine ("{0} ({1} *{2})", getterName, ContainerCType, ContainerCName);
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sw.WriteLine ("{");
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sw.WriteLine ("\treturn ({0}){1}{2}->{3};", GlueCType,
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byref ? "&" : "", ContainerCName, CName);
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sw.WriteLine ("}");
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sw.WriteLine ("");
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}
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if (setterName != null) {
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sw.WriteLine ("void");
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sw.WriteLine ("{0} ({1} *{2}, {3} value)",
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setterName, ContainerCType, ContainerCName, GlueCType);
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sw.WriteLine ("{");
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sw.WriteLine ("\t{0}->{1} = ({2}){3}value;", ContainerCName, CName,
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FieldCType, byref ? "*" : "");
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sw.WriteLine ("}");
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sw.WriteLine ("");
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}
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if (getOffsetName != null) {
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sw.WriteLine ("guint");
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sw.WriteLine ("{0} (void)", getOffsetName);
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sw.WriteLine ("{");
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sw.WriteLine ("\treturn (guint)G_STRUCT_OFFSET ({0}, {1});",
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ContainerCType, CName);
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sw.WriteLine ("}");
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sw.WriteLine ("");
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}
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}
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}
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}
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