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![Bertrand Lorentz](/assets/img/avatar_default.png)
The additional type information makes the code a bit more safe and readable. At least one bug is fixed by this: in ObjectGen, an invalid child property could still be generated, as it was not removed from the hash table. This should cause no real change to the generated code, except maybe in the order of some members.
165 lines
5.1 KiB
C#
165 lines
5.1 KiB
C#
// GtkSharp.Generation.Ctor.cs - The Constructor Generation Class.
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//
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// Author: Mike Kestner <mkestner@novell.com>
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//
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// Copyright (c) 2001-2003 Mike Kestner
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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.Collections.Generic;
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using System.IO;
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using System.Xml;
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public class Ctor : MethodBase {
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private bool preferred;
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private string name;
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private bool needs_chaining = false;
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public Ctor (XmlElement elem, ClassBase implementor) : base (elem, implementor)
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{
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preferred = elem.GetAttributeAsBoolean ("preferred");
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if (implementor is ObjectGen)
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needs_chaining = true;
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name = implementor.Name;
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}
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public bool Preferred {
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get { return preferred; }
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set { preferred = value; }
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}
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public string StaticName {
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get {
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if (!IsStatic)
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return String.Empty;
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if (Name != null && Name != String.Empty)
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return Name;
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string[] toks = CName.Substring(CName.IndexOf("new")).Split ('_');
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string result = String.Empty;
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foreach (string tok in toks)
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result += tok.Substring(0,1).ToUpper() + tok.Substring(1);
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return result;
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}
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}
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void GenerateImport (StreamWriter sw)
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{
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sw.WriteLine("\t\t[DllImport(\"" + LibraryName + "\", CallingConvention = CallingConvention.Cdecl)]");
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sw.WriteLine("\t\tstatic extern " + Safety + "IntPtr " + CName + "(" + Parameters.ImportSignature + ");");
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sw.WriteLine();
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}
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void GenerateStatic (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine("\t\t" + Protection + " static " + Safety + Modifiers + name + " " + StaticName + "(" + Signature + ")");
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sw.WriteLine("\t\t{");
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Body.Initialize(gen_info, false, false, "");
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sw.Write("\t\t\t" + name + " result = ");
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if (container_type is StructBase)
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sw.Write ("{0}.New (", name);
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else
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sw.Write ("new {0} (", name);
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sw.WriteLine (CName + "(" + Body.GetCallString (false) + "));");
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Body.Finish (sw, "");
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Body.HandleException (sw, "");
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sw.WriteLine ("\t\t\treturn result;");
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}
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public void Generate (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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gen_info.CurrentMember = CName;
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GenerateImport (sw);
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if (IsStatic)
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GenerateStatic (gen_info);
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else {
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sw.WriteLine("\t\t{0} {1}{2} ({3}) {4}", Protection, Safety, name, Signature.ToString(), needs_chaining ? ": base (IntPtr.Zero)" : "");
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sw.WriteLine("\t\t{");
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if (needs_chaining) {
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sw.WriteLine ("\t\t\tif (GetType () != typeof (" + name + ")) {");
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if (Parameters.Count == 0) {
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sw.WriteLine ("\t\t\t\tCreateNativeObject (new string [0], new GLib.Value[0]);");
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sw.WriteLine ("\t\t\t\treturn;");
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} else {
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var names = new List<string> ();
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var values = new List<string> ();
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for (int i = 0; i < Parameters.Count; i++) {
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Parameter p = Parameters[i];
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if (container_type.GetPropertyRecursively (p.StudlyName) != null) {
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names.Add (p.Name);
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values.Add (p.Name);
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} else if (p.PropertyName != String.Empty) {
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names.Add (p.PropertyName);
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values.Add (p.Name);
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}
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}
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if (names.Count == Parameters.Count) {
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sw.WriteLine ("\t\t\t\tArrayList vals = new ArrayList();");
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sw.WriteLine ("\t\t\t\tArrayList names = new ArrayList();");
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for (int i = 0; i < names.Count; i++) {
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Parameter p = Parameters [i];
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string indent = "\t\t\t\t";
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if (p.Generatable is ClassBase && !(p.Generatable is StructBase)) {
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sw.WriteLine (indent + "if (" + p.Name + " != null) {");
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indent += "\t";
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}
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sw.WriteLine (indent + "names.Add (\"" + names [i] + "\");");
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sw.WriteLine (indent + "vals.Add (new GLib.Value (" + values[i] + "));");
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if (p.Generatable is ClassBase && !(p.Generatable is StructBase))
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sw.WriteLine ("\t\t\t\t}");
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}
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sw.WriteLine ("\t\t\t\tCreateNativeObject ((string[])names.ToArray (typeof (string)), (GLib.Value[])vals.ToArray (typeof (GLib.Value)));");
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sw.WriteLine ("\t\t\t\treturn;");
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} else
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sw.WriteLine ("\t\t\t\tthrow new InvalidOperationException (\"Can't override this constructor.\");");
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}
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sw.WriteLine ("\t\t\t}");
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}
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Body.Initialize(gen_info, false, false, "");
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sw.WriteLine("\t\t\t{0} = {1}({2});", container_type.AssignToName, CName, Body.GetCallString (false));
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Body.Finish (sw, "");
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Body.HandleException (sw, "");
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}
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sw.WriteLine("\t\t}");
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sw.WriteLine();
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Statistics.CtorCount++;
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}
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}
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}
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