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-rw-r--r--inc/Twig/Node/Expression/Array.php86
1 files changed, 86 insertions, 0 deletions
diff --git a/inc/Twig/Node/Expression/Array.php b/inc/Twig/Node/Expression/Array.php
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1<?php
2
3/*
4 * This file is part of Twig.
5 *
6 * (c) 2009 Fabien Potencier
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11class Twig_Node_Expression_Array extends Twig_Node_Expression
12{
13 protected $index;
14
15 public function __construct(array $elements, $lineno)
16 {
17 parent::__construct($elements, array(), $lineno);
18
19 $this->index = -1;
20 foreach ($this->getKeyValuePairs() as $pair) {
21 if ($pair['key'] instanceof Twig_Node_Expression_Constant && ctype_digit((string) $pair['key']->getAttribute('value')) && $pair['key']->getAttribute('value') > $this->index) {
22 $this->index = $pair['key']->getAttribute('value');
23 }
24 }
25 }
26
27 public function getKeyValuePairs()
28 {
29 $pairs = array();
30
31 foreach (array_chunk($this->nodes, 2) as $pair) {
32 $pairs[] = array(
33 'key' => $pair[0],
34 'value' => $pair[1],
35 );
36 }
37
38 return $pairs;
39 }
40
41 public function hasElement(Twig_Node_Expression $key)
42 {
43 foreach ($this->getKeyValuePairs() as $pair) {
44 // we compare the string representation of the keys
45 // to avoid comparing the line numbers which are not relevant here.
46 if ((string) $key == (string) $pair['key']) {
47 return true;
48 }
49 }
50
51 return false;
52 }
53
54 public function addElement(Twig_Node_Expression $value, Twig_Node_Expression $key = null)
55 {
56 if (null === $key) {
57 $key = new Twig_Node_Expression_Constant(++$this->index, $value->getLine());
58 }
59
60 array_push($this->nodes, $key, $value);
61 }
62
63 /**
64 * Compiles the node to PHP.
65 *
66 * @param Twig_Compiler A Twig_Compiler instance
67 */
68 public function compile(Twig_Compiler $compiler)
69 {
70 $compiler->raw('array(');
71 $first = true;
72 foreach ($this->getKeyValuePairs() as $pair) {
73 if (!$first) {
74 $compiler->raw(', ');
75 }
76 $first = false;
77
78 $compiler
79 ->subcompile($pair['key'])
80 ->raw(' => ')
81 ->subcompile($pair['value'])
82 ;
83 }
84 $compiler->raw(')');
85 }
86}