vendor/twig/twig/src/Node/Expression/ArrayExpression.php line 59

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  1. <?php
  3. /*
  4. * This file is part of Twig.
  5. *
  6. * (c) 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. */
  12. namespace Twig\Node\Expression;
  14. use Twig\Compiler;
  16. class ArrayExpression extends AbstractExpression
  17. {
  18. private $index;
  20. public function __construct(array $elements, int $lineno)
  21. {
  22. parent::__construct($elements, [], $lineno);
  24. $this->index = -1;
  25. foreach ($this->getKeyValuePairs() as $pair) {
  26. if ($pair['key'] instanceof ConstantExpression && ctype_digit((string) $pair['key']->getAttribute('value')) && $pair['key']->getAttribute('value') > $this->index) {
  27. $this->index = $pair['key']->getAttribute('value');
  28. }
  29. }
  30. }
  32. public function getKeyValuePairs()
  33. {
  34. $pairs = [];
  36. foreach (array_chunk($this->nodes, 2) as $pair) {
  37. $pairs[] = [
  38. 'key' => $pair[0],
  39. 'value' => $pair[1],
  40. ];
  41. }
  43. return $pairs;
  44. }
  46. public function hasElement(AbstractExpression $key)
  47. {
  48. foreach ($this->getKeyValuePairs() as $pair) {
  49. // we compare the string representation of the keys
  50. // to avoid comparing the line numbers which are not relevant here.
  51. if ((string) $key === (string) $pair['key']) {
  52. return true;
  53. }
  54. }
  56. return false;
  57. }
  59. public function addElement(AbstractExpression $value, AbstractExpression $key = null)
  60. {
  61. if (null === $key) {
  62. $key = new ConstantExpression(++$this->index, $value->getTemplateLine());
  63. }
  65. array_push($this->nodes, $key, $value);
  66. }
  68. public function compile(Compiler $compiler)
  69. {
  70. $compiler->raw('[');
  71. $first = true;
  72. foreach ($this->getKeyValuePairs() as $pair) {
  73. if (!$first) {
  74. $compiler->raw(', ');
  75. }
  76. $first = false;
  78. $compiler
  79. ->subcompile($pair['key'])
  80. ->raw(' => ')
  81. ->subcompile($pair['value'])
  82. ;
  83. }
  84. $compiler->raw(']');
  85. }
  86. }
  88. class_alias('Twig\Node\Expression\ArrayExpression', 'Twig_Node_Expression_Array');