Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
So funktioniert es
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SearchAndRenderBlockNode.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Bridge\Twig\Node;
013
014 /**
015 * @author Bernhard Schussek <bschussek@gmail.com>
016 */
017 class SearchAndRenderBlockNode extends \Twig_Node_Expression_Function
018 {
019 public function compile(\Twig_Compiler $compiler)
020 {
021 $compiler->addDebugInfo($this);
022 $compiler->raw('$this->env->getExtension(\'form\')->renderer->searchAndRenderBlock(');
023
024 preg_match('/_([^_]+)$/', $this->getAttribute('name'), $matches);
025
026 $label = null;
027 $arguments = iterator_to_array($this->getNode('arguments'));
028 $blockNameSuffix = $matches[1];
029
030 if (isset($arguments[0])) {
031 $compiler->subcompile($arguments[0]);
032 $compiler->raw(', \''.$blockNameSuffix.'\'');
033
034 if (isset($arguments[1])) {
035 if ('label' === $blockNameSuffix) {
036 // The "label" function expects the label in the second and
037 // the variables in the third argument
038 $label = $arguments[1];
039 $variables = isset($arguments[2]) ? $arguments[2] : null;
040 $lineno = $label->getLine();
041
042 if ($label instanceof \Twig_Node_Expression_Constant) {
043 // If the label argument is given as a constant, we can either
044 // strip it away if it is empty, or integrate it into the array
045 // of variables at compile time.
046 $labelIsExpression = false;
047
048 // Only insert the label into the array if it is not empty
049 if (!twig_test_empty($label->getAttribute('value'))) {
050 $originalVariables = $variables;
051 $variables = new \Twig_Node_Expression_Array(array(), $lineno);
052 $labelKey = new \Twig_Node_Expression_Constant('label', $lineno);
053
054 if (null !== $originalVariables) {
055 foreach ($originalVariables->getKeyValuePairs() as $pair) {
056 // Don't copy the original label attribute over if it exists
057 if ((string) $labelKey !== (string) $pair['key']) {
058 $variables->addElement($pair['value'], $pair['key']);
059 }
060 }
061 }
062
063 // Insert the label argument into the array
064 $variables->addElement($label, $labelKey);
065 }
066 } else {
067 // The label argument is not a constant, but some kind of
068 // expression. This expression needs to be evaluated at runtime.
069 // Depending on the result (whether it is null or not), the
070 // label in the arguments should take precedence over the label
071 // in the attributes or not.
072 $labelIsExpression = true;
073 }
074 } else {
075 // All other functions than "label" expect the variables
076 // in the second argument
077 $label = null;
078 $variables = $arguments[1];
079 $labelIsExpression = false;
080 }
081
082 if (null !== $variables || $labelIsExpression) {
083 $compiler->raw(', ');
084
085 if (null !== $variables) {
086 $compiler->subcompile($variables);
087 }
088
089 if ($labelIsExpression) {
090 if (null !== $variables) {
091 $compiler->raw(' + ');
092 }
093
094 // Check at runtime whether the label is empty.
095 // If not, add it to the array at runtime.
096 $compiler->raw('(twig_test_empty($_label_ = ');
097 $compiler->subcompile($label);
098 $compiler->raw(') ? array() : array("label" => $_label_))');
099 }
100 }
101 }
102 }
103
104 $compiler->raw(')');
105 }
106 }
107