2002-11-10 11:03:51 +01:00
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// GtkSharp.Generation.CallbackGen.cs - The Callback Generatable.
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// (c) 2002 Mike Kestner
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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 CallbackGen : GenBase, IGeneratable {
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private Parameters parms;
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public CallbackGen (XmlElement ns, XmlElement elem) : base (ns, elem)
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{
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if (elem ["parameters"] != null)
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2003-06-14 19:30:32 +02:00
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parms = new Parameters (elem ["parameters"], NS);
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2002-11-10 11:03:51 +01:00
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}
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2003-06-14 19:30:32 +02:00
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public string MarshalType {
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2002-11-10 11:03:51 +01:00
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get
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{
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return NS + "Sharp." + Name + "Native";
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}
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}
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2003-06-14 19:30:32 +02:00
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public string MarshalReturnType {
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2002-11-10 11:03:51 +01:00
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get
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{
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return MarshalType;
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}
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}
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2003-06-14 19:30:32 +02:00
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public string CallByName (string var_name)
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2002-11-10 11:03:51 +01:00
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{
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return var_name + ".NativeDelegate";
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}
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2003-06-14 19:30:32 +02:00
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public string FromNative(string var)
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2002-11-10 11:03:51 +01:00
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{
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return var;
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}
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2003-06-14 19:30:32 +02:00
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public string FromNativeReturn(string var)
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2002-11-10 11:03:51 +01:00
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{
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return FromNative (var);
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}
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2003-06-14 19:30:32 +02:00
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public virtual string ToNativeReturn(string var)
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2003-05-29 Rachel Hestilow <rachel@nullenvoid.com>
* gconf/Value.cs: Update to use new string marshalling.
* generator/StringGen.cs, ConstStringGen.cs: Added.
* generator/IGeneratable.cs: Add new method ToNativeReturn.
* generator/CallbackGen.cs: Implement ToNativeReturn. Call
ToNativeReturn for the return statement. Fix a couple of
places where s_ret was being used incorrectly for m_ret.
* generator/ClassGen.cs, EnumGen.cs, ManualGen.cs,
SimpleGen.cs, StructBase.cs: Implement ToNativeReturn.
* generator/SignalHandler.cs: Call ToNativeReturn for the
return statement, instead of CallByName.
* generator/SymbolTable.cs: Use StringGen for gchar, char,
and gunichar, and ConstStringGen for their const variants.
Add a new method wrapper for ToNativeReturn.
(Trim): Add a special-case for const strings so that the
const is not stripped. Otherwise there is no way of
resolving the const case.
* glade/XML.custom: Update to use new string marshalling.
* glib/Marshaller.cs: Added.
* glib/GException.cs, Markup.cs, ObjectManager.cs,
Value.cs: Update to use new string marshalling.
* glib/Object.cs: Remove old g_type_name DllImport
as it is no longer used.
* glue/fileselection.c (gtksharp_file_selection_get_fileop_entry):
Mark this as const return.
* gtk/ColorSelection.custom, FileSelection.custom,
SelectionData.custom: Update to use new string marshalling.
svn path=/trunk/gtk-sharp/; revision=15286
2003-06-10 20:09:47 +02:00
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{
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return CallByName (var);
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}
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2003-06-14 19:30:32 +02:00
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public string GenWrapper (string ns)
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2002-11-10 11:03:51 +01:00
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{
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char sep = Path.DirectorySeparatorChar;
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2003-05-14 02:27:00 +02:00
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string dir = ".." + sep + ns.ToLower() + sep + "generated";
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2002-11-10 11:03:51 +01:00
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if (!Directory.Exists (dir))
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Directory.CreateDirectory (dir);
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string wrapper = Name + "Native";
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2003-05-14 02:27:00 +02:00
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string filename = dir + sep + ns + "Sharp." + wrapper + ".cs";
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2002-11-10 11:03:51 +01:00
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FileStream stream = new FileStream (filename, FileMode.Create, FileAccess.Write);
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StreamWriter sw = new StreamWriter (stream);
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2003-05-14 02:27:00 +02:00
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sw.WriteLine ("// This file was generated by the Gtk# code generator.");
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sw.WriteLine ("// Any changes made will be lost on regeneration.");
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ();
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2003-05-14 02:27:00 +02:00
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sw.WriteLine ("namespace " + ns + "Sharp {");
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ();
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2003-01-06 00:51:37 +01:00
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sw.WriteLine ("#region Autogenerated code");
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2003-05-14 02:27:00 +02:00
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string import_sig = "";
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string sig = "";
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2002-11-10 11:03:51 +01:00
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if (parms != null)
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{
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2003-05-14 02:27:00 +02:00
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parms.HideData = true;
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2002-11-10 11:03:51 +01:00
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parms.CreateSignature (false);
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import_sig = parms.ImportSig;
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2003-05-14 02:27:00 +02:00
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sig = parms.Signature;
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}
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2002-11-10 11:03:51 +01:00
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2003-05-19 04:45:17 +02:00
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SymbolTable table = SymbolTable.Table;
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2002-11-10 11:03:51 +01:00
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XmlElement ret_elem = Elem["return-type"];
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string rettype = ret_elem.GetAttribute("type");
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2003-05-19 04:45:17 +02:00
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string m_ret = table.GetMarshalReturnType (rettype);
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string s_ret = table.GetCSType (rettype);
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ClassBase ret_wrapper = table.GetClassGen (rettype);
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2002-11-10 11:03:51 +01:00
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2003-05-14 02:27:00 +02:00
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sw.WriteLine ("\tinternal delegate " + m_ret + " " + wrapper + "(" + import_sig + ");");
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ();
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2003-06-14 19:30:32 +02:00
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sw.WriteLine ("\tinternal class " + Name + "Wrapper : GLib.DelegateWrapper {");
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2003-04-06 11:21:15 +02:00
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if (m_ret != "void") {
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2003-05-19 04:45:17 +02:00
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if (table.IsEnum (rettype)) {
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2003-04-06 11:21:15 +02:00
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sw.WriteLine ("\t\tstatic int _dummy;");
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} else if (ret_wrapper != null && (ret_wrapper is ObjectGen || ret_wrapper is OpaqueGen)) {
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// Do nothing
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2003-05-19 04:45:17 +02:00
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} else if (!table.IsStruct (rettype) && !table.IsBoxed (rettype)) {
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2003-05-29 Rachel Hestilow <rachel@nullenvoid.com>
* gconf/Value.cs: Update to use new string marshalling.
* generator/StringGen.cs, ConstStringGen.cs: Added.
* generator/IGeneratable.cs: Add new method ToNativeReturn.
* generator/CallbackGen.cs: Implement ToNativeReturn. Call
ToNativeReturn for the return statement. Fix a couple of
places where s_ret was being used incorrectly for m_ret.
* generator/ClassGen.cs, EnumGen.cs, ManualGen.cs,
SimpleGen.cs, StructBase.cs: Implement ToNativeReturn.
* generator/SignalHandler.cs: Call ToNativeReturn for the
return statement, instead of CallByName.
* generator/SymbolTable.cs: Use StringGen for gchar, char,
and gunichar, and ConstStringGen for their const variants.
Add a new method wrapper for ToNativeReturn.
(Trim): Add a special-case for const strings so that the
const is not stripped. Otherwise there is no way of
resolving the const case.
* glade/XML.custom: Update to use new string marshalling.
* glib/Marshaller.cs: Added.
* glib/GException.cs, Markup.cs, ObjectManager.cs,
Value.cs: Update to use new string marshalling.
* glib/Object.cs: Remove old g_type_name DllImport
as it is no longer used.
* glue/fileselection.c (gtksharp_file_selection_get_fileop_entry):
Mark this as const return.
* gtk/ColorSelection.custom, FileSelection.custom,
SelectionData.custom: Update to use new string marshalling.
svn path=/trunk/gtk-sharp/; revision=15286
2003-06-10 20:09:47 +02:00
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sw.WriteLine ("\t\tstatic {0} _dummy;", m_ret);
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2003-04-06 11:21:15 +02:00
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}
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}
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic " + m_ret + " NativeCallback (" + import_sig + ")");
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sw.WriteLine ("\t\t{");
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2003-04-06 11:21:15 +02:00
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sw.Write ("\t\t\tif (RemoveIfNotAlive ()) return ");
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2003-05-19 04:45:17 +02:00
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if (table.IsStruct (rettype) || table.IsBoxed (rettype))
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2003-04-06 11:21:15 +02:00
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sw.WriteLine ("IntPtr.Zero;");
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else if (ret_wrapper != null && (ret_wrapper is ObjectGen || ret_wrapper is OpaqueGen))
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sw.WriteLine ("IntPtr.Zero;");
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else
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sw.WriteLine (m_ret != "void" ? "_dummy;" : ";");
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2002-11-10 11:03:51 +01:00
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int count = (parms != null) ? parms.Count : 0;
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if (count > 0)
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sw.WriteLine ("\t\t\tobject[] _args = new object[{0}];", count);
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int idx = 0;
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bool need_sep = false;
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2003-07-23 19:19:21 +02:00
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bool need_ref_owned = true;
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2002-11-10 11:03:51 +01:00
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string call_str = "";
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for (int i = 0; i < count; i++)
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{
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string parm_name = parms[i].Name;
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string ctype = parms[i].CType;
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2003-02-24 04:13:08 +01:00
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if (i > 0 && parms[i].IsLength && parms[i-1].IsString)
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continue;
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2002-11-10 11:03:51 +01:00
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if ((i == count - 1) && ctype == "gpointer" && (parm_name.EndsWith ("data") || parm_name.EndsWith ("data_or_owner")))
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continue;
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2003-02-24 04:13:08 +01:00
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2002-11-10 11:03:51 +01:00
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string cstype = parms[i].CSType;
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// FIXME: Too much code copy/pasted here. Refactor?
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2003-05-19 04:45:17 +02:00
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ClassBase parm_wrapper = table.GetClassGen (ctype);
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2003-07-23 19:19:21 +02:00
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if (need_ref_owned && parm_wrapper != null && ((parm_wrapper is ObjectGen) || (parm_wrapper is InterfaceGen))) {
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need_ref_owned = false;
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sw.WriteLine("\t\t\tbool ref_owned = false;");
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}
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2003-05-19 04:45:17 +02:00
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sw.WriteLine("\t\t\t_args[" + idx + "] = " + table.FromNative (ctype, parm_name) + ";");
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if ((parm_wrapper != null && ((parm_wrapper is OpaqueGen))) || table.IsManuallyWrapped (ctype)) {
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2002-11-10 11:03:51 +01:00
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sw.WriteLine("\t\t\tif (_args[" + idx + "] == null)");
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sw.WriteLine("\t\t\t\t_args[{0}] = new {1}({2});", idx, cstype, parm_name);
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}
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if (need_sep)
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call_str += ", ";
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else
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need_sep = true;
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call_str += String.Format ("({0}) _args[{1}]", cstype, idx);
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idx++;
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}
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sw.Write ("\t\t\t");
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string invoke = "_managed (" + call_str + ")";
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if (m_ret != "void") {
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2003-04-06 11:21:15 +02:00
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if (ret_wrapper != null && (ret_wrapper is ObjectGen || ret_wrapper is OpaqueGen))
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ("return (({0}) {1}).Handle;", s_ret, invoke);
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2003-05-19 04:45:17 +02:00
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else if (table.IsStruct (rettype) || table.IsBoxed (rettype)) {
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2002-11-10 11:03:51 +01:00
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// Shoot. I have no idea what to do here.
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sw.WriteLine ("return IntPtr.Zero;");
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}
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2003-05-19 04:45:17 +02:00
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else if (table.IsEnum (rettype))
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ("return (int) {0};", invoke);
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else
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2003-05-29 Rachel Hestilow <rachel@nullenvoid.com>
* gconf/Value.cs: Update to use new string marshalling.
* generator/StringGen.cs, ConstStringGen.cs: Added.
* generator/IGeneratable.cs: Add new method ToNativeReturn.
* generator/CallbackGen.cs: Implement ToNativeReturn. Call
ToNativeReturn for the return statement. Fix a couple of
places where s_ret was being used incorrectly for m_ret.
* generator/ClassGen.cs, EnumGen.cs, ManualGen.cs,
SimpleGen.cs, StructBase.cs: Implement ToNativeReturn.
* generator/SignalHandler.cs: Call ToNativeReturn for the
return statement, instead of CallByName.
* generator/SymbolTable.cs: Use StringGen for gchar, char,
and gunichar, and ConstStringGen for their const variants.
Add a new method wrapper for ToNativeReturn.
(Trim): Add a special-case for const strings so that the
const is not stripped. Otherwise there is no way of
resolving the const case.
* glade/XML.custom: Update to use new string marshalling.
* glib/Marshaller.cs: Added.
* glib/GException.cs, Markup.cs, ObjectManager.cs,
Value.cs: Update to use new string marshalling.
* glib/Object.cs: Remove old g_type_name DllImport
as it is no longer used.
* glue/fileselection.c (gtksharp_file_selection_get_fileop_entry):
Mark this as const return.
* gtk/ColorSelection.custom, FileSelection.custom,
SelectionData.custom: Update to use new string marshalling.
svn path=/trunk/gtk-sharp/; revision=15286
2003-06-10 20:09:47 +02:00
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sw.WriteLine ("return ({0}) {1};", m_ret, table.ToNativeReturn (rettype, invoke));
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2002-11-10 11:03:51 +01:00
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}
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else
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sw.WriteLine (invoke + ";");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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2003-06-14 19:30:32 +02:00
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sw.WriteLine ("\t\tinternal {0} NativeDelegate;", wrapper);
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ("\t\tprotected {0} _managed;", NS + "." + Name);
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sw.WriteLine ();
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2003-04-06 11:21:15 +02:00
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sw.WriteLine ("\t\tpublic {0} ({1} managed, object o) : base (o)", Name + "Wrapper", NS + "." + Name);
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2002-11-10 11:03:51 +01:00
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tNativeDelegate = new {0} (NativeCallback);", wrapper);
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sw.WriteLine ("\t\t\t_managed = managed;");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ("\t}");
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2003-01-06 00:51:37 +01:00
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sw.WriteLine ("#endregion");
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2002-11-10 11:03:51 +01:00
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CloseWriter (sw);
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2003-06-14 19:30:32 +02:00
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return ns + "Sharp." + Name + "Wrapper";
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2002-11-10 11:03:51 +01:00
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}
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public void Generate ()
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{
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if (!DoGenerate)
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return;
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XmlElement ret_elem = Elem["return-type"];
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if (ret_elem == null) {
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Console.WriteLine("No return type in callback " + CName);
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Statistics.ThrottledCount++;
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return;
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}
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2003-05-19 04:45:17 +02:00
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SymbolTable table = SymbolTable.Table;
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2002-11-10 11:03:51 +01:00
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string rettype = ret_elem.GetAttribute("type");
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2003-05-19 04:45:17 +02:00
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string s_ret = table.GetCSType (rettype);
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2002-11-10 11:03:51 +01:00
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if (s_ret == "") {
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Console.WriteLine("rettype: " + rettype + " in callback " + CName);
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Statistics.ThrottledCount++;
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return;
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}
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if ((parms != null) && !parms.Validate ()) {
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Console.WriteLine(" in callback " + CName + " **** Stubbing it out ****");
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Statistics.ThrottledCount++;
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parms = null;
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}
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StreamWriter sw = CreateWriter ();
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string sig = "";
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if (parms != null) {
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parms.HideData = true;
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parms.CreateSignature (false);
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sig = parms.Signature;
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}
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sw.WriteLine ("\tpublic delegate " + s_ret + " " + Name + "(" + sig + ");");
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CloseWriter (sw);
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2003-05-14 02:27:00 +02:00
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GenWrapper (NS);
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2002-11-10 11:03:51 +01:00
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Statistics.CBCount++;
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}
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}
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}
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