107 lines
4.4 KiB
PHP
107 lines
4.4 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Bridge\Twig\Node;
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/**
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class SearchAndRenderBlockNode extends \Twig_Node_Expression_Function
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{
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public function compile(\Twig_Compiler $compiler)
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{
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$compiler->addDebugInfo($this);
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$compiler->raw('$this->env->getExtension(\'form\')->renderer->searchAndRenderBlock(');
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preg_match('/_([^_]+)$/', $this->getAttribute('name'), $matches);
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$label = null;
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$arguments = iterator_to_array($this->getNode('arguments'));
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$blockNameSuffix = $matches[1];
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if (isset($arguments[0])) {
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$compiler->subcompile($arguments[0]);
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$compiler->raw(', \''.$blockNameSuffix.'\'');
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if (isset($arguments[1])) {
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if ('label' === $blockNameSuffix) {
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// The "label" function expects the label in the second and
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// the variables in the third argument
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$label = $arguments[1];
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$variables = isset($arguments[2]) ? $arguments[2] : null;
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$lineno = $label->getLine();
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if ($label instanceof \Twig_Node_Expression_Constant) {
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// If the label argument is given as a constant, we can either
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// strip it away if it is empty, or integrate it into the array
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// of variables at compile time.
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$labelIsExpression = false;
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// Only insert the label into the array if it is not empty
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if (!twig_test_empty($label->getAttribute('value'))) {
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$originalVariables = $variables;
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$variables = new \Twig_Node_Expression_Array(array(), $lineno);
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$labelKey = new \Twig_Node_Expression_Constant('label', $lineno);
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if (null !== $originalVariables) {
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foreach ($originalVariables->getKeyValuePairs() as $pair) {
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// Don't copy the original label attribute over if it exists
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if ((string) $labelKey !== (string) $pair['key']) {
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$variables->addElement($pair['value'], $pair['key']);
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}
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}
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}
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// Insert the label argument into the array
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$variables->addElement($label, $labelKey);
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}
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} else {
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// The label argument is not a constant, but some kind of
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// expression. This expression needs to be evaluated at runtime.
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// Depending on the result (whether it is null or not), the
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// label in the arguments should take precedence over the label
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// in the attributes or not.
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$labelIsExpression = true;
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}
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} else {
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// All other functions than "label" expect the variables
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// in the second argument
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$label = null;
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$variables = $arguments[1];
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$labelIsExpression = false;
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}
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if (null !== $variables || $labelIsExpression) {
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$compiler->raw(', ');
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if (null !== $variables) {
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$compiler->subcompile($variables);
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}
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if ($labelIsExpression) {
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if (null !== $variables) {
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$compiler->raw(' + ');
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}
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// Check at runtime whether the label is empty.
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// If not, add it to the array at runtime.
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$compiler->raw('(twig_test_empty($_label_ = ');
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$compiler->subcompile($label);
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$compiler->raw(') ? array() : array("label" => $_label_))');
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}
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}
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}
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}
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$compiler->raw(')');
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}
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}
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