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