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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
* (c) Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Node;
use Twig\Compiler;
use Twig\Source;
/**
* Represents a node in the AST.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Node implements \Countable, \IteratorAggregate
{
protected $nodes;
protected $attributes;
protected $lineno;
protected $tag;
private $name;
private $sourceContext;
/**
* @param array $nodes An array of named nodes
* @param array $attributes An array of attributes (should not be nodes)
* @param int $lineno The line number
* @param string $tag The tag name associated with the Node
*/
public function __construct(array $nodes = [], array $attributes = [], int $lineno = 0, string $tag = null)
{
foreach ($nodes as $name => $node) {
if (!$node instanceof self) {
throw new \InvalidArgumentException(sprintf('Using "%s" for the value of node "%s" of "%s" is not supported. You must pass a \Twig\Node\Node instance.', \is_object($node) ? \get_class($node) : (null === $node ? 'null' : \gettype($node)), $name, \get_class($this)));
}
}
$this->nodes = $nodes;
$this->attributes = $attributes;
$this->lineno = $lineno;
$this->tag = $tag;
}
public function __toString()
{
$attributes = [];
foreach ($this->attributes as $name => $value) {
$attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true)));
}
$repr = [\get_class($this).'('.implode(', ', $attributes)];
if (\count($this->nodes)) {
foreach ($this->nodes as $name => $node) {
$len = \strlen($name) + 4;
$noderepr = [];
foreach (explode("\n", (string) $node) as $line) {
$noderepr[] = str_repeat(' ', $len).$line;
}
$repr[] = sprintf(' %s: %s', $name, ltrim(implode("\n", $noderepr)));
}
$repr[] = ')';
} else {
$repr[0] .= ')';
}
return implode("\n", $repr);
}
public function compile(Compiler $compiler)
{
foreach ($this->nodes as $node) {
$node->compile($compiler);
}
}
public function getTemplateLine()
{
return $this->lineno;
}
public function getNodeTag()
{
return $this->tag;
}
/**
* @return bool
*/
public function hasAttribute($name)
{
return \array_key_exists($name, $this->attributes);
}
/**
* @return mixed
*/
public function getAttribute($name)
{
if (!\array_key_exists($name, $this->attributes)) {
throw new \LogicException(sprintf('Attribute "%s" does not exist for Node "%s".', $name, \get_class($this)));
}
return $this->attributes[$name];
}
/**
* @param string $name
* @param mixed $value
*/
public function setAttribute($name, $value)
{
$this->attributes[$name] = $value;
}
public function removeAttribute($name)
{
unset($this->attributes[$name]);
}
/**
* @return bool
*/
public function hasNode($name)
{
return isset($this->nodes[$name]);
}
/**
* @return Node
*/
public function getNode($name)
{
if (!isset($this->nodes[$name])) {
throw new \LogicException(sprintf('Node "%s" does not exist for Node "%s".', $name, \get_class($this)));
}
return $this->nodes[$name];
}
public function setNode($name, self $node)
{
$this->nodes[$name] = $node;
}
public function removeNode($name)
{
unset($this->nodes[$name]);
}
public function count()
{
return \count($this->nodes);
}
public function getIterator()
{
return new \ArrayIterator($this->nodes);
}
/**
* @deprecated since 2.8 (to be removed in 3.0)
*/
public function setTemplateName($name/*, $triggerDeprecation = true */)
{
$triggerDeprecation = 2 > \func_num_args() || \func_get_arg(1);
if ($triggerDeprecation) {
@trigger_error('The '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0. Use setSourceContext() instead.', E_USER_DEPRECATED);
}
$this->name = $name;
foreach ($this->nodes as $node) {
$node->setTemplateName($name, $triggerDeprecation);
}
}
public function getTemplateName()
{
return $this->sourceContext ? $this->sourceContext->getName() : null;
}
public function setSourceContext(Source $source)
{
$this->sourceContext = $source;
foreach ($this->nodes as $node) {
$node->setSourceContext($source);
}
$this->setTemplateName($source->getName(), false);
}
public function getSourceContext()
{
return $this->sourceContext;
}
}
class_alias('Twig\Node\Node', 'Twig_Node');
// Ensure that the aliased name is loaded to keep BC for classes implementing the typehint with the old aliased name.
class_exists('Twig\Compiler');
|
