blob: db2e8de45636957ac269747b613cdcd822066605 (
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
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
212
213
214
215
216
217
218
219
|
<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
* (c) 2009 Armin Ronacher
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Compiles a node to PHP code.
*
* @package twig
* @author Fabien Potencier <fabien@symfony.com>
*/
class Twig_Compiler implements Twig_CompilerInterface
{
protected $lastLine;
protected $source;
protected $indentation;
protected $env;
/**
* Constructor.
*
* @param Twig_Environment $env The twig environment instance
*/
public function __construct(Twig_Environment $env)
{
$this->env = $env;
}
/**
* Returns the environment instance related to this compiler.
*
* @return Twig_Environment The environment instance
*/
public function getEnvironment()
{
return $this->env;
}
/**
* Gets the current PHP code after compilation.
*
* @return string The PHP code
*/
public function getSource()
{
return $this->source;
}
/**
* Compiles a node.
*
* @param Twig_NodeInterface $node The node to compile
* @param integer $indent The current indentation
*
* @return Twig_Compiler The current compiler instance
*/
public function compile(Twig_NodeInterface $node, $indentation = 0)
{
$this->lastLine = null;
$this->source = '';
$this->indentation = $indentation;
$node->compile($this);
return $this;
}
public function subcompile(Twig_NodeInterface $node, $raw = true)
{
if (false === $raw) {
$this->addIndentation();
}
$node->compile($this);
return $this;
}
/**
* Adds a raw string to the compiled code.
*
* @param string $string The string
*
* @return Twig_Compiler The current compiler instance
*/
public function raw($string)
{
$this->source .= $string;
return $this;
}
/**
* Writes a string to the compiled code by adding indentation.
*
* @return Twig_Compiler The current compiler instance
*/
public function write()
{
$strings = func_get_args();
foreach ($strings as $string) {
$this->addIndentation();
$this->source .= $string;
}
return $this;
}
public function addIndentation()
{
$this->source .= str_repeat(' ', $this->indentation * 4);
return $this;
}
/**
* Adds a quoted string to the compiled code.
*
* @param string $string The string
*
* @return Twig_Compiler The current compiler instance
*/
public function string($value)
{
$this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
return $this;
}
/**
* Returns a PHP representation of a given value.
*
* @param mixed $value The value to convert
*
* @return Twig_Compiler The current compiler instance
*/
public function repr($value)
{
if (is_int($value) || is_float($value)) {
$this->raw($value);
} else if (null === $value) {
$this->raw('null');
} else if (is_bool($value)) {
$this->raw($value ? 'true' : 'false');
} else if (is_array($value)) {
$this->raw('array(');
$i = 0;
foreach ($value as $key => $value) {
if ($i++) {
$this->raw(', ');
}
$this->repr($key);
$this->raw(' => ');
$this->repr($value);
}
$this->raw(')');
} else {
$this->string($value);
}
return $this;
}
/**
* Adds debugging information.
*
* @param Twig_NodeInterface $node The related twig node
*
* @return Twig_Compiler The current compiler instance
*/
public function addDebugInfo(Twig_NodeInterface $node)
{
if ($node->getLine() != $this->lastLine) {
$this->lastLine = $node->getLine();
$this->write("// line {$node->getLine()}\n");
}
return $this;
}
/**
* Indents the generated code.
*
* @param integer $indent The number of indentation to add
*
* @return Twig_Compiler The current compiler instance
*/
public function indent($step = 1)
{
$this->indentation += $step;
return $this;
}
/**
* Outdents the generated code.
*
* @param integer $indent The number of indentation to remove
*
* @return Twig_Compiler The current compiler instance
*/
public function outdent($step = 1)
{
$this->indentation -= $step;
if ($this->indentation < 0) {
throw new Twig_Error('Unable to call outdent() as the indentation would become negative');
}
return $this;
}
}
|
