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
|
//
// Identifier.cs
//
// Author:
// Mike Krüger <mkrueger@novell.com>
//
// Copyright (c) 2009 Novell, Inc (http://www.novell.com)
//
// 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;
namespace ICSharpCode.NRefactory.CSharp
{
public class Identifier : AstNode
{
public new static readonly Identifier Null = new NullIdentifier ();
sealed class NullIdentifier : Identifier
{
public override bool IsNull {
get {
return true;
}
}
public override void AcceptVisitor (IAstVisitor visitor)
{
}
public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
{
return default (T);
}
public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
{
return default (S);
}
protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
{
return other == null || other.IsNull;
}
}
public override NodeType NodeType {
get {
return NodeType.Token;
}
}
string name;
public string Name {
get { return this.name; }
set {
if (value == null)
throw new ArgumentNullException("value");
ThrowIfFrozen();
this.name = value;
}
}
TextLocation startLocation;
public override TextLocation StartLocation {
get {
return startLocation;
}
}
const uint verbatimBit = 1u << AstNodeFlagsUsedBits;
public bool IsVerbatim {
get {
return (flags & verbatimBit) != 0;
}
set {
ThrowIfFrozen();
if (value)
flags |= verbatimBit;
else
flags &= ~verbatimBit;
}
}
public override TextLocation EndLocation {
get {
return new TextLocation (StartLocation.Line, StartLocation.Column + (Name ?? "").Length + (IsVerbatim ? 1 : 0));
}
}
Identifier ()
{
this.name = string.Empty;
}
protected Identifier (string name, TextLocation location)
{
if (name == null)
throw new ArgumentNullException("name");
this.Name = name;
this.startLocation = location;
}
public static Identifier Create (string name)
{
return Create (name, TextLocation.Empty);
}
public static Identifier Create (string name, TextLocation location)
{
if (string.IsNullOrEmpty(name))
return Identifier.Null;
if (name[0] == '@')
return new Identifier (name.Substring (1), new TextLocation (location.Line, location.Column + 1)) { IsVerbatim = true };
else
return new Identifier (name, location);
}
public static Identifier Create (string name, TextLocation location, bool isVerbatim)
{
if (string.IsNullOrEmpty (name))
return Identifier.Null;
if (isVerbatim)
return new Identifier (name, location) { IsVerbatim = true };
return new Identifier (name, location);
}
public override void AcceptVisitor (IAstVisitor visitor)
{
visitor.VisitIdentifier (this);
}
public override T AcceptVisitor<T> (IAstVisitor<T> visitor)
{
return visitor.VisitIdentifier (this);
}
public override S AcceptVisitor<T, S> (IAstVisitor<T, S> visitor, T data)
{
return visitor.VisitIdentifier (this, data);
}
protected internal override bool DoMatch(AstNode other, PatternMatching.Match match)
{
Identifier o = other as Identifier;
return o != null && !o.IsNull && MatchString(this.Name, o.Name);
}
}
}
|
