Matthias Andreas Benkard | 12a5735 | 2021-12-28 18:02:04 +0100 | [diff] [blame^] | 1 | <?php |
| 2 | |
| 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 | */ |
| 11 | |
| 12 | namespace Twig\Node; |
| 13 | |
| 14 | use Twig\Compiler; |
| 15 | use Twig\Node\Expression\ConstantExpression; |
| 16 | |
| 17 | /** |
| 18 | * Represents a set node. |
| 19 | * |
| 20 | * @author Fabien Potencier <fabien@symfony.com> |
| 21 | */ |
| 22 | class SetNode extends Node implements NodeCaptureInterface |
| 23 | { |
| 24 | public function __construct(bool $capture, Node $names, Node $values, int $lineno, string $tag = null) |
| 25 | { |
| 26 | parent::__construct(['names' => $names, 'values' => $values], ['capture' => $capture, 'safe' => false], $lineno, $tag); |
| 27 | |
| 28 | /* |
| 29 | * Optimizes the node when capture is used for a large block of text. |
| 30 | * |
| 31 | * {% set foo %}foo{% endset %} is compiled to $context['foo'] = new Twig\Markup("foo"); |
| 32 | */ |
| 33 | if ($this->getAttribute('capture')) { |
| 34 | $this->setAttribute('safe', true); |
| 35 | |
| 36 | $values = $this->getNode('values'); |
| 37 | if ($values instanceof TextNode) { |
| 38 | $this->setNode('values', new ConstantExpression($values->getAttribute('data'), $values->getTemplateLine())); |
| 39 | $this->setAttribute('capture', false); |
| 40 | } |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | public function compile(Compiler $compiler): void |
| 45 | { |
| 46 | $compiler->addDebugInfo($this); |
| 47 | |
| 48 | if (\count($this->getNode('names')) > 1) { |
| 49 | $compiler->write('list('); |
| 50 | foreach ($this->getNode('names') as $idx => $node) { |
| 51 | if ($idx) { |
| 52 | $compiler->raw(', '); |
| 53 | } |
| 54 | |
| 55 | $compiler->subcompile($node); |
| 56 | } |
| 57 | $compiler->raw(')'); |
| 58 | } else { |
| 59 | if ($this->getAttribute('capture')) { |
| 60 | if ($compiler->getEnvironment()->isDebug()) { |
| 61 | $compiler->write("ob_start();\n"); |
| 62 | } else { |
| 63 | $compiler->write("ob_start(function () { return ''; });\n"); |
| 64 | } |
| 65 | $compiler |
| 66 | ->subcompile($this->getNode('values')) |
| 67 | ; |
| 68 | } |
| 69 | |
| 70 | $compiler->subcompile($this->getNode('names'), false); |
| 71 | |
| 72 | if ($this->getAttribute('capture')) { |
| 73 | $compiler->raw(" = ('' === \$tmp = ob_get_clean()) ? '' : new Markup(\$tmp, \$this->env->getCharset())"); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | if (!$this->getAttribute('capture')) { |
| 78 | $compiler->raw(' = '); |
| 79 | |
| 80 | if (\count($this->getNode('names')) > 1) { |
| 81 | $compiler->write('['); |
| 82 | foreach ($this->getNode('values') as $idx => $value) { |
| 83 | if ($idx) { |
| 84 | $compiler->raw(', '); |
| 85 | } |
| 86 | |
| 87 | $compiler->subcompile($value); |
| 88 | } |
| 89 | $compiler->raw(']'); |
| 90 | } else { |
| 91 | if ($this->getAttribute('safe')) { |
| 92 | $compiler |
| 93 | ->raw("('' === \$tmp = ") |
| 94 | ->subcompile($this->getNode('values')) |
| 95 | ->raw(") ? '' : new Markup(\$tmp, \$this->env->getCharset())") |
| 96 | ; |
| 97 | } else { |
| 98 | $compiler->subcompile($this->getNode('values')); |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | $compiler->raw(";\n"); |
| 104 | } |
| 105 | } |