no more submodule

GtkSharp/Source/Tools/GapiCodegen/ManagedCallString.cs

@@ -0,0 +1,193 @@
+// GtkSharp.Generation.ManagedCallString.cs - The ManagedCallString Class.
+//
+// Author: Mike Kestner <mkestner@speakeasy.net>
+//
+// Copyright (c) 2003 Mike Kestner
+//
+// 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.Generic;
+	using System.IO;
+
+	public class ManagedCallString {
+		
+		IDictionary<Parameter, bool> parms = new Dictionary<Parameter, bool> ();
+		IList<Parameter> dispose_params = new List<Parameter> ();
+		string error_param = null;
+		string user_data_param = null;
+		string destroy_param = null;
+
+		public ManagedCallString (Parameters parms)
+		{
+			for (int i = 0; i < parms.Count; i ++) {
+				Parameter p = parms [i];
+				if (p.IsLength && i > 0 && parms [i-1].IsString) 
+					continue;
+				else if (p.Scope == "notified") {
+					user_data_param = parms[i+1].Name;
+					destroy_param = parms[i+2].Name;
+					i += 2;
+				} else if ((p.IsCount || p.IsUserData) && parms.IsHidden (p)) {
+					user_data_param = p.Name;
+					continue;
+				} else if (p is ErrorParameter) {
+					error_param = p.Name;
+					continue;
+				}
+
+				bool special = false;
+				if (p.PassAs != String.Empty && (p.Name != p.FromNative (p.Name)))
+					special = true;
+				else if (p.Generatable is CallbackGen)
+					special = true;
+
+				this.parms.Add (p, special);
+
+				if (p.IsOwnable) {
+					dispose_params.Add (p);
+				}
+			}
+		}
+
+		public bool HasOutParam {
+			get {
+				foreach (Parameter p in parms.Keys) {
+					if (p.PassAs == "out")
+						return true;
+				}
+				return false;
+			}
+		}
+
+		public bool HasDisposeParam {
+			get { return dispose_params.Count > 0; }
+		}
+
+		public string Unconditional (string indent) {
+			string ret = "";
+			if (error_param != null)
+				ret = indent + error_param + " = IntPtr.Zero;\n";
+
+			foreach (Parameter p in dispose_params) {
+				ret += indent + p.CSType + " my" + p.Name + " = null;\n";
+			}
+			return ret;
+		}
+
+		public string Setup (string indent)
+		{
+			string ret = "";
+
+			foreach (Parameter p in parms.Keys) {
+				if (parms [p] == false) {
+					continue;
+				}
+
+				IGeneratable igen = p.Generatable;
+
+				if (igen is CallbackGen) {
+					if (user_data_param == null)
+						ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1});\n", (igen as CallbackGen).InvokerName, p.Name);
+					else if (destroy_param == null)
+						ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1}, {2});\n", (igen as CallbackGen).InvokerName, p.Name, user_data_param);
+					else
+						ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1}, {2}, {3});\n", (igen as CallbackGen).InvokerName, p.Name, user_data_param, destroy_param);
+				} else {
+					ret += indent + igen.QualifiedName + " my" + p.Name;
+					if (p.PassAs == "ref")
+						ret += " = " + p.FromNative (p.Name);
+					ret += ";\n";
+				}
+			}
+
+			foreach (Parameter p in dispose_params) {
+				ret += indent + "my" + p.Name + " = " + p.FromNative (p.Name) + ";\n";
+			}
+
+			return ret;
+		}
+
+		public override string ToString ()
+		{
+			if (parms.Count < 1)
+				return "";
+
+			string[] result = new string [parms.Count];
+
+			int i = 0;
+			foreach (Parameter p in parms.Keys) {
+				result [i] = p.PassAs == "" ? "" : p.PassAs + " ";
+				if (p.Generatable is CallbackGen) {
+					result [i] += p.Name + "_invoker.Handler";
+				} else {
+					if (parms [p] || dispose_params.Contains(p)) {
+						// Parameter was declared and marshalled earlier
+						result [i] +=  "my" + p.Name;
+					} else {
+						result [i] +=  p.FromNative (p.Name);
+					}
+				}
+				i++;
+			}
+
+			return String.Join (", ", result);
+		}
+
+		public string Finish (string indent)
+		{
+			string ret = "";
+
+			foreach (Parameter p in parms.Keys) {
+				if (parms [p] == false) {
+					continue;
+				}
+
+				IGeneratable igen = p.Generatable;
+
+				if (igen is CallbackGen)
+					continue;
+				else if (igen is StructBase || igen is ByRefGen)
+					ret += indent + String.Format ("if ({0} != IntPtr.Zero) System.Runtime.InteropServices.Marshal.StructureToPtr (my{0}, {0}, false);\n", p.Name);
+				else if (igen is IManualMarshaler)
+					ret += String.Format ("{0}{1} = {2};", indent, p.Name, (igen as IManualMarshaler).AllocNative ("my" + p.Name));
+				else
+					ret += indent + p.Name + " = " + igen.CallByName ("my" + p.Name) + ";\n";
+			}
+
+			return ret;
+		}
+
+		public string DisposeParams (string indent)
+		{
+			string ret = "";
+
+			foreach (Parameter p in dispose_params) {
+				string name = "my" + p.Name;
+				string disp_name = "disposable_" + p.Name;
+
+				ret += indent + "var " + disp_name + " = " + name + " as IDisposable;\n";
+				ret += indent + "if (" + disp_name + " != null)\n";
+				ret += indent + "\t" + disp_name + ".Dispose ();\n";
+			}
+
+			return ret;
+		}
+	}
+}
+