blob: fb80c8308b55f7da63efbb7bebcb3a225a9c849e (
plain)
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
|
/* valacodenode.vala
*
* Copyright (C) 2006-2007 Jürg Billeter
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
*/
using GLib;
/**
* Represents a part of the parsed source code.
*
* Code nodes get created by the parser and are used throughout the whole
* compilation process.
*/
public abstract class Vala.CodeNode : Object {
/**
* Parent of this code node.
*/
public weak CodeNode parent_node { get; set; }
/**
* References the location in the source file where this code node has
* been written.
*/
public SourceReference source_reference { get; set; }
/**
* Contains all attributes that have been specified for this code node.
*/
public List<Attribute> attributes;
/**
* Generated CCodeNode that corresponds to this code node.
*/
public CCodeNode ccodenode {
get {
return _ccodenode;
}
set {
if (source_reference != null) {
value.line = new CCodeLineDirective (
Path.build_filename (Environment.get_current_dir (), source_reference.file.filename),
source_reference.first_line);
}
_ccodenode = value;
}
}
/**
* Specifies whether a fatal error has been detected in this code node.
*/
public bool error { get; set; }
/**
* Specifies that this node or a child node may throw an exception.
*/
public bool tree_can_fail { get; set; }
/**
* Visits this code node with the specified CodeVisitor.
*
* @param visitor the visitor to be called while traversing
*/
public virtual void accept (CodeVisitor! visitor) {
}
/**
* Visits all children of this code node with the specified CodeVisitor.
*
* @param visitor the visitor to be called while traversing
*/
public virtual void accept_children (CodeVisitor! visitor) {
}
public virtual void replace (CodeNode! old_node, CodeNode! new_node) {
}
/**
* Returns the specified attribute.
*
* @param name attribute name
* @return attribute
*/
public Attribute get_attribute (string! name) {
// FIXME: use hash table
foreach (Attribute a in attributes) {
if (a.name == name) {
return a;
}
}
return null;
}
private CCodeNode _ccodenode;
/**
* Returns a string that represents this code node.
*
* @return a string representation
*/
public virtual string! to_string () {
var str = new String ();
str.append ("/* ").append (get_type ().name ());
if (source_reference != null) {
str.append ("@").append (source_reference.to_string ());
}
return str.append (" */").str;
}
}
|
