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![Bertrand Lorentz](/assets/img/avatar_default.png)
Use a single dictionary to hold the parameters and mark them as special, instead of maintaining two lists in parallel.
156 lines
4.2 KiB
C#
156 lines
4.2 KiB
C#
// GtkSharp.Generation.ManagedCallString.cs - The ManagedCallString Class.
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// Copyright (c) 2003 Mike Kestner
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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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public class ManagedCallString {
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IDictionary<Parameter, bool> parms = new Dictionary<Parameter, bool> ();
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string error_param = null;
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string user_data_param = null;
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string destroy_param = null;
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public ManagedCallString (Parameters parms)
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{
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for (int i = 0; i < parms.Count; i ++) {
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Parameter p = parms [i];
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if (p.IsLength && i > 0 && parms [i-1].IsString)
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continue;
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else if (p.Scope == "notified") {
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user_data_param = parms[i+1].Name;
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destroy_param = parms[i+2].Name;
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i += 2;
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} else if ((p.IsCount || p.IsUserData) && parms.IsHidden (p)) {
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user_data_param = p.Name;
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continue;
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} else if (p is ErrorParameter) {
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error_param = p.Name;
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continue;
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}
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bool special = false;
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if (p.PassAs != String.Empty && (p.Name != p.FromNative (p.Name)))
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special = true;
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else if (p.Generatable is CallbackGen)
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special = true;
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this.parms.Add (p, special);
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}
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}
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public bool HasOutParam {
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get {
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foreach (Parameter p in parms.Keys) {
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if (p.PassAs == "out")
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return true;
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}
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return false;
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}
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}
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public string Unconditional (string indent) {
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string ret = "";
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if (error_param != null)
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ret = indent + error_param + " = IntPtr.Zero;\n";
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return ret;
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}
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public string Setup (string indent)
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{
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string ret = "";
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foreach (Parameter p in parms.Keys) {
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if (parms [p] == false) {
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continue;
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}
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IGeneratable igen = p.Generatable;
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if (igen is CallbackGen) {
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if (user_data_param == null)
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ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1});\n", (igen as CallbackGen).InvokerName, p.Name);
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else if (destroy_param == null)
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ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1}, {2});\n", (igen as CallbackGen).InvokerName, p.Name, user_data_param);
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else
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ret += indent + String.Format ("{0} {1}_invoker = new {0} ({1}, {2}, {3});\n", (igen as CallbackGen).InvokerName, p.Name, user_data_param, destroy_param);
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} else {
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ret += indent + igen.QualifiedName + " my" + p.Name;
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if (p.PassAs == "ref")
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ret += " = " + p.FromNative (p.Name);
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ret += ";\n";
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}
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}
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return ret;
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}
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public override string ToString ()
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{
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if (parms.Count < 1)
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return "";
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string[] result = new string [parms.Count];
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int i = 0;
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foreach (Parameter p in parms.Keys) {
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result [i] = p.PassAs == "" ? "" : p.PassAs + " ";
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if (p.Generatable is CallbackGen) {
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result [i] += p.Name + "_invoker.Handler";
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} else {
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result [i] += (parms [p]) ? "my" + p.Name : p.FromNative (p.Name);
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}
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i++;
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}
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return String.Join (", ", result);
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}
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public string Finish (string indent)
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{
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string ret = "";
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foreach (Parameter p in parms.Keys) {
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if (parms [p] == false) {
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continue;
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}
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IGeneratable igen = p.Generatable;
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if (igen is CallbackGen)
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continue;
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else if (igen is StructBase || igen is ByRefGen)
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ret += indent + String.Format ("if ({0} != IntPtr.Zero) System.Runtime.InteropServices.Marshal.StructureToPtr (my{0}, {0}, false);\n", p.Name);
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else if (igen is IManualMarshaler)
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ret += String.Format ("{0}{1} = {2};", indent, p.Name, (igen as IManualMarshaler).AllocNative ("my" + p.Name));
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else
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ret += indent + p.Name + " = " + igen.CallByName ("my" + p.Name) + ";\n";
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}
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return ret;
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}
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}
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}
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