147 lines
3.0 KiB
PHP
147 lines
3.0 KiB
PHP
<?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;
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/**
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* Compiles a node to PHP code.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Compiler
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{
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private $source;
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private $functions;
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public function __construct(array $functions)
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{
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$this->functions = $functions;
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}
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public function getFunction($name)
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{
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return $this->functions[$name];
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}
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/**
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* Gets the current PHP code after compilation.
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*
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* @return string The PHP code
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*/
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public function getSource()
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{
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return $this->source;
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}
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public function reset()
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{
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$this->source = '';
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return $this;
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}
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/**
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* Compiles a node.
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*
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* @return $this
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*/
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public function compile(Node\Node $node)
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{
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$node->compile($this);
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return $this;
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}
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public function subcompile(Node\Node $node)
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{
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$current = $this->source;
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$this->source = '';
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$node->compile($this);
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$source = $this->source;
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$this->source = $current;
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return $source;
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}
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/**
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* Adds a raw string to the compiled code.
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*
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* @param string $string The string
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*
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* @return $this
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*/
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public function raw($string)
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{
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$this->source .= $string;
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return $this;
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}
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/**
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* Adds a quoted string to the compiled code.
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*
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* @param string $value The string
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*
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* @return $this
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*/
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public function string($value)
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{
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$this->source .= sprintf('"%s"', addcslashes($value, "\0\t\"\$\\"));
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return $this;
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}
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/**
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* Returns a PHP representation of a given value.
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*
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* @param mixed $value The value to convert
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*
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* @return $this
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*/
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public function repr($value)
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{
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if (\is_int($value) || \is_float($value)) {
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if (false !== $locale = setlocale(\LC_NUMERIC, 0)) {
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setlocale(\LC_NUMERIC, 'C');
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}
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$this->raw($value);
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if (false !== $locale) {
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setlocale(\LC_NUMERIC, $locale);
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}
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} elseif (null === $value) {
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$this->raw('null');
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} elseif (\is_bool($value)) {
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$this->raw($value ? 'true' : 'false');
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} elseif (\is_array($value)) {
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$this->raw('[');
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$first = true;
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foreach ($value as $key => $value) {
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if (!$first) {
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$this->raw(', ');
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}
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$first = false;
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$this->repr($key);
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$this->raw(' => ');
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$this->repr($value);
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}
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$this->raw(']');
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} else {
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$this->string($value);
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}
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return $this;
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}
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}
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