1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// 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;
}
}
}
}
|
