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
|
// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Windows.Forms;
using ICSharpCode.NRefactory.VB;
using ICSharpCode.NRefactory.VB.Ast;
using ICSharpCode.NRefactory.VB.Parser;
namespace ICSharpCode.NRefactory.Demo
{
/// <summary>
/// Description of VBDemo.
/// </summary>
public partial class VBDemo : UserControl
{
public VBDemo()
{
//
// The InitializeComponent() call is required for Windows Forms designer support.
//
InitializeComponent();
}
CompilationUnit compilationUnit;
void CSharpParseButtonClick(object sender, EventArgs e)
{
var parser = new VBParser();
compilationUnit = parser.Parse(new StringReader(codeView.Text));
if (parser.HasErrors)
MessageBox.Show(parser.Errors.ErrorOutput);
treeView.Nodes.Clear();
foreach (var element in compilationUnit.Children) {
treeView.Nodes.Add(MakeTreeNode(element));
}
SelectCurrentNode(treeView.Nodes);
}
TreeNode MakeTreeNode(AstNode node)
{
TreeNode t = new TreeNode(GetNodeTitle(node));
t.Tag = node;
foreach (AstNode child in node.Children) {
t.Nodes.Add(MakeTreeNode(child));
}
return t;
}
string GetNodeTitle(AstNode node)
{
StringBuilder b = new StringBuilder();
b.Append(node.Role.ToString());
b.Append(": ");
b.Append(node.GetType().Name);
bool hasProperties = false;
foreach (PropertyInfo p in node.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance)) {
if (p.Name == "NodeType" || p.Name == "IsNull")
continue;
if (p.PropertyType == typeof(string) || p.PropertyType.IsEnum || p.PropertyType == typeof(bool)) {
if (!hasProperties) {
hasProperties = true;
b.Append(" (");
} else {
b.Append(", ");
}
b.Append(p.Name);
b.Append(" = ");
try {
object val = p.GetValue(node, null);
b.Append(val != null ? val.ToString() : "**null**");
} catch (TargetInvocationException ex) {
b.Append("**" + ex.InnerException.GetType().Name + "**");
}
}
}
if (hasProperties)
b.Append(")");
return b.ToString();
}
bool SelectCurrentNode(TreeNodeCollection c)
{
int selectionStart = codeView.SelectionStart;
int selectionEnd = selectionStart + codeView.SelectionLength;
foreach (TreeNode t in c) {
AstNode node = t.Tag as AstNode;
if (node != null
&& selectionStart >= GetOffset(codeView, node.StartLocation)
&& selectionEnd <= GetOffset(codeView, node.EndLocation))
{
if (selectionStart == selectionEnd
&& (selectionStart == GetOffset(codeView, node.StartLocation)
|| selectionStart == GetOffset(codeView, node.EndLocation)))
{
// caret is on border of this node; don't expand
treeView.SelectedNode = t;
} else {
t.Expand();
if (!SelectCurrentNode(t.Nodes))
treeView.SelectedNode = t;
}
return true;
}
}
return false;
}
void CSharpGenerateCodeButtonClick(object sender, EventArgs e)
{
StringWriter w = new StringWriter();
OutputVisitor output = new OutputVisitor(w, new VBFormattingOptions());
compilationUnit.AcceptVisitor(output, null);
codeView.Text = w.ToString();
}
int GetOffset(TextBox textBox, TextLocation location)
{
return textBox.GetFirstCharIndexFromLine(location.Line - 1) + location.Column - 1;
}
void CSharpTreeViewAfterSelect(object sender, TreeViewEventArgs e)
{
AstNode node = e.Node.Tag as AstNode;
if (node != null) {
int startOffset = GetOffset(codeView, node.StartLocation);
int endOffset = GetOffset(codeView, node.EndLocation);
codeView.Select(startOffset, endOffset - startOffset);
}
}
}
}
|
