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fab4c3eed1
* generator/MethodBody.cs : handle set method conversion to property for array parameters with preceding count params. svn path=/trunk/gtk-sharp/; revision=73613
223 lines
8.3 KiB
C#
223 lines
8.3 KiB
C#
// GtkSharp.Generation.MethodBody.cs - The MethodBody Generation 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) 2001-2003 Mike Kestner
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// Copyright (c) 2003-2004 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;
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using System.IO;
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public class MethodBody {
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Parameters parameters;
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public MethodBody (Parameters parms)
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{
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parameters = parms;
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}
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private string CastFromInt (string type)
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{
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return type != "int" ? "(" + type + ") " : "";
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}
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private string CallArrayLength (string array_name, Parameter length)
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{
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string result = array_name + " != null ? ";
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result += CastFromInt (length.CSType) + array_name + ".Length";
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result += ": 0";
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return length.Generatable.CallByName (result);
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}
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public string GetCallString (bool is_set)
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{
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if (parameters.Count == 0)
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return "";
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string[] result = new string [parameters.Count];
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for (int i = 0; i < parameters.Count; i++) {
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Parameter p = parameters [i];
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IGeneratable igen = p.Generatable;
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bool is_prop = is_set && (i == 0 || (i == 1 && p.IsArray && parameters[0].IsCount));
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string name = is_prop ? "value" : p.Name;
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if (p.IsCount) {
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if (i > 0 && parameters [i - 1].IsArray) {
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string array_name = (i == 1 && is_set) ? "value" : parameters [i - 1].Name;
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result[i] = CallArrayLength (array_name, p);
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continue;
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} else if (i < parameters.Count - 1 && parameters [i + 1].IsArray) {
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string array_name = (i == 0 && is_set) ? "value" : parameters [i + 1].Name;
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result[i] = CallArrayLength (array_name, p);
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continue;
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}
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} else if (i > 0 && parameters [i - 1].IsString && p.IsLength) {
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string string_name = (i == 1 && is_set) ? "value" : parameters [i - 1].Name;
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result[i] = igen.CallByName (CastFromInt (p.CSType) + "System.Text.Encoding.UTF8.GetByteCount (" + string_name + ")");
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continue;
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} else if (p.IsArray && p.MarshalType != p.CSType) {
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result[i] = "native_" + p.Name;
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continue;
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}
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string call_parm = p.CallByName (name);
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if (p.CType == "GError**") {
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result [i] += "out ";
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} else if (p.PassAs != "") {
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result [i] += p.PassAs + " ";
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if (p.CSType != p.MarshalType && !(igen is StructBase || igen is ByRefGen))
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call_parm = p.Name + "_as_native";
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} else if (igen is IManualMarshaler)
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call_parm = p.Name + "_as_native";
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if (p.CType == "GError**") {
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call_parm = call_parm.Replace (p.Name, "error");
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} else if (p.IsUserData && parameters.IsHidden (p) && !parameters.HideData &&
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(i == 0 || parameters [i - 1].Scope != "notified")) {
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call_parm = "IntPtr.Zero";
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}
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result [i] += call_parm;
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}
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string call_string = String.Join (", ", result);
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call_string = call_string.Replace ("out ref", "out");
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call_string = call_string.Replace ("out out ", "out ");
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call_string = call_string.Replace ("ref ref", "ref");
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return call_string;
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}
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public void Initialize (GenerationInfo gen_info, bool is_get, bool is_set, string indent)
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{
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if (parameters.Count == 0)
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return;
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StreamWriter sw = gen_info.Writer;
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for (int i = 0; i < parameters.Count; i++) {
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Parameter p = parameters [i];
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IGeneratable gen = p.Generatable;
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string name = p.Name;
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if (is_set)
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name = "value";
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if ((is_get || p.PassAs == "out") && p.CSType != p.MarshalType && !(gen is StructBase || gen is ByRefGen))
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sw.WriteLine(indent + "\t\t\t" + gen.MarshalType + " " + name + "_as_native;");
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else if (p.IsArray && p.MarshalType != p.CSType) {
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sw.WriteLine(indent + "\t\t\tint cnt_" + p.Name + " = {0} == null ? 0 : {0}.Length;", name);
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sw.WriteLine(indent + "\t\t\t{0}[] native_" + p.Name + " = new {0} [cnt_{1}];", p.MarshalType.TrimEnd('[', ']'), p.Name);
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sw.WriteLine(indent + "\t\t\tfor (int i = 0; i < cnt_{0}; i++)", p.Name);
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if (gen is IManualMarshaler)
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sw.WriteLine(indent + "\t\t\t\tnative_{0} [i] = {1};", p.Name, (gen as IManualMarshaler).AllocNative (name + "[i]"));
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else
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sw.WriteLine(indent + "\t\t\t\tnative_{0} [i] = {1};", p.Name, p.CallByName (name + "[i]"));
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} else if (gen is IManualMarshaler)
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sw.WriteLine(indent + "\t\t\t" + gen.MarshalType + " " + p.Name + "_as_native = " + (gen as IManualMarshaler).AllocNative (name) + ";");
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if (gen is CallbackGen) {
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CallbackGen cbgen = gen as CallbackGen;
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string wrapper = cbgen.GenWrapper(gen_info);
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switch (p.Scope) {
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case "notified":
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sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper;", wrapper, name);
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sw.WriteLine (indent + "\t\t\tIntPtr {0};", parameters [i + 1].Name);
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sw.WriteLine (indent + "\t\t\t{0} {1};", parameters [i + 2].CSType, parameters [i + 2].Name);
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sw.WriteLine (indent + "\t\t\tif ({0} == null) {{", name);
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sw.WriteLine (indent + "\t\t\t\t{0}_wrapper = null;", name);
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sw.WriteLine (indent + "\t\t\t\t{0} = IntPtr.Zero;", parameters [i + 1].Name);
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sw.WriteLine (indent + "\t\t\t\t{0} = null;", parameters [i + 2].Name);
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sw.WriteLine (indent + "\t\t\t} else {");
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sw.WriteLine (indent + "\t\t\t\t{0}_wrapper = new {1} ({0});", name, wrapper);
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sw.WriteLine (indent + "\t\t\t\t{0} = (IntPtr) GCHandle.Alloc ({1}_wrapper);", parameters [i + 1].Name, name);
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sw.WriteLine (indent + "\t\t\t\t{0} = GLib.DestroyHelper.NotifyHandler;", parameters [i + 2].Name, parameters [i + 2].CSType);
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sw.WriteLine (indent + "\t\t\t}");
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break;
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case "async":
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sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper = new {0} ({1});", wrapper, name);
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sw.WriteLine (indent + "\t\t\t{0}_wrapper.PersistUntilCalled ();", name);
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break;
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case "call":
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default:
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if (p.Scope == String.Empty)
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Console.WriteLine ("Defaulting " + gen.Name + " param to 'call' scope in method " + gen_info.CurrentMember);
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sw.WriteLine (indent + "\t\t\t{0} {1}_wrapper = new {0} ({1});", wrapper, name);
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break;
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}
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}
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}
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if (ThrowsException)
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sw.WriteLine (indent + "\t\t\tIntPtr error = IntPtr.Zero;");
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}
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public void InitAccessor (StreamWriter sw, Signature sig, string indent)
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{
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sw.WriteLine (indent + "\t\t\t" + sig.AccessorType + " " + sig.AccessorName + ";");
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}
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public void Finish (StreamWriter sw, string indent)
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{
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for (int i = 0; i < parameters.Count; i++) {
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Parameter p = parameters [i];
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IGeneratable gen = p.Generatable;
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if (p.PassAs == "out" && p.CSType != p.MarshalType && !(gen is StructBase || gen is ByRefGen))
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sw.WriteLine(indent + "\t\t\t" + p.Name + " = " + p.FromNative (p.Name + "_as_native") + ";");
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else if (p.IsArray && gen is IManualMarshaler) {
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sw.WriteLine(indent + "\t\t\tfor (int i = 0; i < native_" + p.Name + ".Length; i++)");
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sw.WriteLine(indent + "\t\t\t\t" + (gen as IManualMarshaler).ReleaseNative ("native_" + p.Name + "[i]") + ";");
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} else if (gen is IManualMarshaler)
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sw.WriteLine(indent + "\t\t\t" + (gen as IManualMarshaler).ReleaseNative (p.Name + "_as_native") + ";");
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}
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}
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public void FinishAccessor (StreamWriter sw, Signature sig, string indent)
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{
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sw.WriteLine (indent + "\t\t\treturn " + sig.AccessorName + ";");
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}
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public void HandleException (StreamWriter sw, string indent)
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{
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if (!ThrowsException)
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return;
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sw.WriteLine (indent + "\t\t\tif (error != IntPtr.Zero) throw new GLib.GException (error);");
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}
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public bool ThrowsException {
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get {
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if (parameters.Count < 1)
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return false;
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return parameters [parameters.Count - 1].CType == "GError**";
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}
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}
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}
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}
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