mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-09-09 00:13:20 +02:00
![Mike Kestner](/assets/img/avatar_default.png)
* generator/MethodBody.cs: avoid null ref when passing null to destroy notified callback parameters. [Fixes #464120] svn path=/trunk/gtk-sharp/; revision=122677
178 lines
5.4 KiB
C#
178 lines
5.4 KiB
C#
// GtkSharp.Generation.MethodBody.cs - The MethodBody Generation Class.
|
|
//
|
|
// Author: Mike Kestner <mkestner@speakeasy.net>
|
|
//
|
|
// Copyright (c) 2001-2003 Mike Kestner
|
|
// Copyright (c) 2003-2004 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;
|
|
|
|
public class MethodBody {
|
|
|
|
Parameters parameters;
|
|
|
|
public MethodBody (Parameters parms)
|
|
{
|
|
parameters = parms;
|
|
}
|
|
|
|
private string CastFromInt (string type)
|
|
{
|
|
return type != "int" ? "(" + type + ") " : "";
|
|
}
|
|
|
|
public string GetCallString (bool is_set)
|
|
{
|
|
if (parameters.Count == 0)
|
|
return String.Empty;
|
|
|
|
string[] result = new string [parameters.Count];
|
|
for (int i = 0; i < parameters.Count; i++) {
|
|
Parameter p = parameters [i];
|
|
IGeneratable igen = p.Generatable;
|
|
|
|
bool is_prop = is_set && i == 0;
|
|
|
|
if (i > 0 && parameters [i - 1].IsString && p.IsLength && p.PassAs == String.Empty) {
|
|
string string_name = (i == 1 && is_set) ? "value" : parameters [i - 1].Name;
|
|
result[i] = igen.CallByName (CastFromInt (p.CSType) + "System.Text.Encoding.UTF8.GetByteCount (" + string_name + ")");
|
|
continue;
|
|
}
|
|
|
|
if (is_prop)
|
|
p.CallName = "value";
|
|
else
|
|
p.CallName = p.Name;
|
|
string call_parm = p.CallString;
|
|
|
|
if (p.IsUserData && parameters.IsHidden (p) && !parameters.HideData &&
|
|
(i == 0 || parameters [i - 1].Scope != "notified")) {
|
|
call_parm = "IntPtr.Zero";
|
|
}
|
|
|
|
result [i] += call_parm;
|
|
}
|
|
|
|
return String.Join (", ", result);
|
|
}
|
|
|
|
public void Initialize (GenerationInfo gen_info)
|
|
{
|
|
Initialize (gen_info, false, false, String.Empty);
|
|
}
|
|
|
|
public void Initialize (GenerationInfo gen_info, bool is_get, bool is_set, string indent)
|
|
{
|
|
if (parameters.Count == 0)
|
|
return;
|
|
|
|
StreamWriter sw = gen_info.Writer;
|
|
for (int i = 0; i < parameters.Count; i++) {
|
|
Parameter p = parameters [i];
|
|
|
|
IGeneratable gen = p.Generatable;
|
|
string name = p.Name;
|
|
if (is_set)
|
|
name = "value";
|
|
|
|
p.CallName = name;
|
|
foreach (string prep in p.Prepare)
|
|
sw.WriteLine (indent + "\t\t\t" + prep);
|
|
|
|
if (gen is CallbackGen) {
|
|
CallbackGen cbgen = gen as CallbackGen;
|
|
string wrapper = cbgen.GenWrapper(gen_info);
|
|
switch (p.Scope) {
|
|
case "notified":
|
|
sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper = new {0} ({1});", wrapper, name);
|
|
sw.WriteLine (indent + "\t\t\tIntPtr {0};", parameters [i + 1].Name);
|
|
sw.WriteLine (indent + "\t\t\t{0} {1};", parameters [i + 2].CSType, parameters [i + 2].Name);
|
|
sw.WriteLine (indent + "\t\t\tif ({0} == null) {{", name);
|
|
sw.WriteLine (indent + "\t\t\t\t{0} = IntPtr.Zero;", parameters [i + 1].Name);
|
|
sw.WriteLine (indent + "\t\t\t\t{0} = null;", parameters [i + 2].Name);
|
|
sw.WriteLine (indent + "\t\t\t} else {");
|
|
sw.WriteLine (indent + "\t\t\t\t{0} = (IntPtr) GCHandle.Alloc ({1}_wrapper);", parameters [i + 1].Name, name);
|
|
sw.WriteLine (indent + "\t\t\t\t{0} = GLib.DestroyHelper.NotifyHandler;", parameters [i + 2].Name, parameters [i + 2].CSType);
|
|
sw.WriteLine (indent + "\t\t\t}");
|
|
break;
|
|
|
|
case "async":
|
|
sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper = new {0} ({1});", wrapper, name);
|
|
sw.WriteLine (indent + "\t\t\t{0}_wrapper.PersistUntilCalled ();", name);
|
|
break;
|
|
case "call":
|
|
default:
|
|
if (p.Scope == String.Empty)
|
|
Console.WriteLine ("Defaulting " + gen.Name + " param to 'call' scope in method " + gen_info.CurrentMember);
|
|
sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper = new {0} ({1});", wrapper, name);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ThrowsException)
|
|
sw.WriteLine (indent + "\t\t\tIntPtr error = IntPtr.Zero;");
|
|
}
|
|
|
|
public void InitAccessor (StreamWriter sw, Signature sig, string indent)
|
|
{
|
|
sw.WriteLine (indent + "\t\t\t" + sig.AccessorType + " " + sig.AccessorName + ";");
|
|
}
|
|
|
|
public void Finish (StreamWriter sw, string indent)
|
|
{
|
|
foreach (Parameter p in parameters)
|
|
foreach (string s in p.Finish)
|
|
sw.WriteLine(indent + "\t\t\t" + s);
|
|
}
|
|
|
|
public void FinishAccessor (StreamWriter sw, Signature sig, string indent)
|
|
{
|
|
sw.WriteLine (indent + "\t\t\treturn " + sig.AccessorName + ";");
|
|
}
|
|
|
|
public void HandleException (StreamWriter sw, string indent)
|
|
{
|
|
if (!ThrowsException)
|
|
return;
|
|
sw.WriteLine (indent + "\t\t\tif (error != IntPtr.Zero) throw new GLib.GException (error);");
|
|
}
|
|
|
|
public bool ThrowsException {
|
|
get {
|
|
int idx = parameters.Count - 1;
|
|
|
|
while (idx >= 0) {
|
|
if (parameters [idx].IsUserData)
|
|
idx--;
|
|
else if (parameters [idx].CType == "GError**")
|
|
return true;
|
|
else
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|