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vichan/inc/lib/Twig/Node/Expression/Array.php
2013-09-19 16:09:35 +10:00

87 lines
2.3 KiB
PHP

<?php
/*
* This file is part of Twig.
*
* (c) 2009 Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
class Twig_Node_Expression_Array extends Twig_Node_Expression
{
protected $index;
public function __construct(array $elements, $lineno)
{
parent::__construct($elements, array(), $lineno);
$this->index = -1;
foreach ($this->getKeyValuePairs() as $pair) {
if ($pair['key'] instanceof Twig_Node_Expression_Constant && ctype_digit((string) $pair['key']->getAttribute('value')) && $pair['key']->getAttribute('value') > $this->index) {
$this->index = $pair['key']->getAttribute('value');
}
}
}
public function getKeyValuePairs()
{
$pairs = array();
foreach (array_chunk($this->nodes, 2) as $pair) {
$pairs[] = array(
'key' => $pair[0],
'value' => $pair[1],
);
}
return $pairs;
}
public function hasElement(Twig_Node_Expression $key)
{
foreach ($this->getKeyValuePairs() as $pair) {
// we compare the string representation of the keys
// to avoid comparing the line numbers which are not relevant here.
if ((string) $key == (string) $pair['key']) {
return true;
}
}
return false;
}
public function addElement(Twig_Node_Expression $value, Twig_Node_Expression $key = null)
{
if (null === $key) {
$key = new Twig_Node_Expression_Constant(++$this->index, $value->getLine());
}
array_push($this->nodes, $key, $value);
}
/**
* Compiles the node to PHP.
*
* @param Twig_Compiler A Twig_Compiler instance
*/
public function compile(Twig_Compiler $compiler)
{
$compiler->raw('array(');
$first = true;
foreach ($this->getKeyValuePairs() as $pair) {
if (!$first) {
$compiler->raw(', ');
}
$first = false;
$compiler
->subcompile($pair['key'])
->raw(' => ')
->subcompile($pair['value'])
;
}
$compiler->raw(')');
}
}