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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\ExpressionLanguage\Node;
- use Symfony\Component\ExpressionLanguage\Compiler;
- /**
- * Represents a node in the AST.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class Node
- {
- public $nodes = [];
- public $attributes = [];
- /**
- * @param array $nodes An array of nodes
- * @param array $attributes An array of attributes
- */
- public function __construct(array $nodes = [], array $attributes = [])
- {
- $this->nodes = $nodes;
- $this->attributes = $attributes;
- }
- /**
- * @return string
- */
- public function __toString()
- {
- $attributes = [];
- foreach ($this->attributes as $name => $value) {
- $attributes[] = sprintf('%s: %s', $name, str_replace("\n", '', var_export($value, true)));
- }
- $repr = [str_replace('Symfony\Component\ExpressionLanguage\Node\\', '', static::class).'('.implode(', ', $attributes)];
- if (\count($this->nodes)) {
- foreach ($this->nodes as $node) {
- foreach (explode("\n", (string) $node) as $line) {
- $repr[] = ' '.$line;
- }
- }
- $repr[] = ')';
- } else {
- $repr[0] .= ')';
- }
- return implode("\n", $repr);
- }
- public function compile(Compiler $compiler)
- {
- foreach ($this->nodes as $node) {
- $node->compile($compiler);
- }
- }
- public function evaluate(array $functions, array $values)
- {
- $results = [];
- foreach ($this->nodes as $node) {
- $results[] = $node->evaluate($functions, $values);
- }
- return $results;
- }
- public function toArray()
- {
- throw new \BadMethodCallException(sprintf('Dumping a "%s" instance is not supported yet.', static::class));
- }
- public function dump()
- {
- $dump = '';
- foreach ($this->toArray() as $v) {
- $dump .= is_scalar($v) ? $v : $v->dump();
- }
- return $dump;
- }
- protected function dumpString(string $value)
- {
- return sprintf('"%s"', addcslashes($value, "\0\t\"\\"));
- }
- protected function isHash(array $value)
- {
- $expectedKey = 0;
- foreach ($value as $key => $val) {
- if ($key !== $expectedKey++) {
- return true;
- }
- }
- return false;
- }
- }
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