Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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Name.php
01 <?php
02
03 /*
04 * This file is part of Twig.
05 *
06 * (c) 2009 Fabien Potencier
07 * (c) 2009 Armin Ronacher
08 *
09 * For the full copyright and license information, please view the LICENSE
10 * file that was distributed with this source code.
11 */
12 class Twig_Node_Expression_Name extends Twig_Node_Expression
13 {
14 protected $specialVars = array(
15 '_self' => '$this',
16 '_context' => '$context',
17 '_charset' => '$this->env->getCharset()',
18 );
19
20 public function __construct($name, $lineno)
21 {
22 parent::__construct(array(), array('name' => $name, 'is_defined_test' => false, 'ignore_strict_check' => false, 'always_defined' => false), $lineno);
23 }
24
25 public function compile(Twig_Compiler $compiler)
26 {
27 $name = $this->getAttribute('name');
28
29 $compiler->addDebugInfo($this);
30
31 if ($this->getAttribute('is_defined_test')) {
32 if ($this->isSpecial()) {
33 $compiler->repr(true);
34 } else {
35 $compiler->raw('array_key_exists(')->repr($name)->raw(', $context)');
36 }
37 } elseif ($this->isSpecial()) {
38 $compiler->raw($this->specialVars[$name]);
39 } elseif ($this->getAttribute('always_defined')) {
40 $compiler
41 ->raw('$context[')
42 ->string($name)
43 ->raw(']')
44 ;
45 } else {
46 // remove the non-PHP 5.4 version when PHP 5.3 support is dropped
47 // as the non-optimized version is just a workaround for slow ternary operator
48 // when the context has a lot of variables
49 if (PHP_VERSION_ID >= 50400) {
50 // PHP 5.4 ternary operator performance was optimized
51 $compiler
52 ->raw('(isset($context[')
53 ->string($name)
54 ->raw(']) ? $context[')
55 ->string($name)
56 ->raw('] : ')
57 ;
58
59 if ($this->getAttribute('ignore_strict_check') || !$compiler->getEnvironment()->isStrictVariables()) {
60 $compiler->raw('null)');
61 } else {
62 $compiler->raw('$this->getContext($context, ')->string($name)->raw('))');
63 }
64 } else {
65 $compiler
66 ->raw('$this->getContext($context, ')
67 ->string($name)
68 ;
69
70 if ($this->getAttribute('ignore_strict_check')) {
71 $compiler->raw(', true');
72 }
73
74 $compiler
75 ->raw(')')
76 ;
77 }
78 }
79 }
80
81 public function isSpecial()
82 {
83 return isset($this->specialVars[$this->getAttribute('name')]);
84 }
85
86 public function isSimple()
87 {
88 return !$this->isSpecial() && !$this->getAttribute('is_defined_test');
89 }
90 }
91