Actualización

vendor/symfony/expression-language/.gitignore

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+vendor/
+composer.lock
+phpunit.xml

vendor/symfony/expression-language/CHANGELOG.md

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+CHANGELOG
+=========
+
+2.6.0
+-----
+
+ * Added ExpressionFunction and ExpressionFunctionProviderInterface
+
+2.4.0
+-----
+
+ * added the component

vendor/symfony/expression-language/Compiler.php

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

vendor/symfony/expression-language/Expression.php

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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;
+
+/**
+ * Represents an expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Expression
+{
+    protected $expression;
+
+    /**
+     * @param string $expression An expression
+     */
+    public function __construct($expression)
+    {
+        $this->expression = (string) $expression;
+    }
+
+    /**
+     * Gets the expression.
+     *
+     * @return string The expression
+     */
+    public function __toString()
+    {
+        return $this->expression;
+    }
+}

vendor/symfony/expression-language/ExpressionFunction.php

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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;
+
+/**
+ * Represents a function that can be used in an expression.
+ *
+ * A function is defined by two PHP callables. The callables are used
+ * by the language to compile and/or evaluate the function.
+ *
+ * The "compiler" function is used at compilation time and must return a
+ * PHP representation of the function call (it receives the function
+ * arguments as arguments).
+ *
+ * The "evaluator" function is used for expression evaluation and must return
+ * the value of the function call based on the values defined for the
+ * expression (it receives the values as a first argument and the function
+ * arguments as remaining arguments).
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ExpressionFunction
+{
+    private $name;
+    private $compiler;
+    private $evaluator;
+
+    /**
+     * @param string   $name      The function name
+     * @param callable $compiler  A callable able to compile the function
+     * @param callable $evaluator A callable able to evaluate the function
+     */
+    public function __construct($name, callable $compiler, callable $evaluator)
+    {
+        $this->name = $name;
+        $this->compiler = $compiler;
+        $this->evaluator = $evaluator;
+    }
+
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    public function getCompiler()
+    {
+        return $this->compiler;
+    }
+
+    public function getEvaluator()
+    {
+        return $this->evaluator;
+    }
+
+    /**
+     * Creates an ExpressionFunction from a PHP function name.
+     *
+     * @param string      $phpFunctionName        The PHP function name
+     * @param string|null $expressionFunctionName The expression function name (default: same than the PHP function name)
+     *
+     * @return self
+     *
+     * @throws \InvalidArgumentException if given PHP function name does not exist
+     * @throws \InvalidArgumentException if given PHP function name is in namespace
+     *                                   and expression function name is not defined
+     */
+    public static function fromPhp($phpFunctionName, $expressionFunctionName = null)
+    {
+        $phpFunctionName = ltrim($phpFunctionName, '\\');
+        if (!\function_exists($phpFunctionName)) {
+            throw new \InvalidArgumentException(sprintf('PHP function "%s" does not exist.', $phpFunctionName));
+        }
+
+        $parts = explode('\\', $phpFunctionName);
+        if (!$expressionFunctionName && \count($parts) > 1) {
+            throw new \InvalidArgumentException(sprintf('An expression function name must be defined when PHP function "%s" is namespaced.', $phpFunctionName));
+        }
+
+        $compiler = function () use ($phpFunctionName) {
+            return sprintf('\%s(%s)', $phpFunctionName, implode(', ', \func_get_args()));
+        };
+
+        $evaluator = function () use ($phpFunctionName) {
+            $args = \func_get_args();
+
+            return \call_user_func_array($phpFunctionName, array_splice($args, 1));
+        };
+
+        return new self($expressionFunctionName ?: end($parts), $compiler, $evaluator);
+    }
+}

vendor/symfony/expression-language/ExpressionFunctionProviderInterface.php

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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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface ExpressionFunctionProviderInterface
+{
+    /**
+     * @return ExpressionFunction[] An array of Function instances
+     */
+    public function getFunctions();
+}

vendor/symfony/expression-language/ExpressionLanguage.php

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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;
+
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheAdapter;
+use Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface;
+
+/**
+ * Allows to compile and evaluate expressions written in your own DSL.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ExpressionLanguage
+{
+    private $cache;
+    private $lexer;
+    private $parser;
+    private $compiler;
+
+    protected $functions = [];
+
+    /**
+     * @param CacheItemPoolInterface                $cache
+     * @param ExpressionFunctionProviderInterface[] $providers
+     */
+    public function __construct($cache = null, array $providers = [])
+    {
+        if (null !== $cache) {
+            if ($cache instanceof ParserCacheInterface) {
+                @trigger_error(sprintf('Passing an instance of %s as constructor argument for %s is deprecated as of 3.2 and will be removed in 4.0. Pass an instance of %s instead.', ParserCacheInterface::class, self::class, CacheItemPoolInterface::class), \E_USER_DEPRECATED);
+                $cache = new ParserCacheAdapter($cache);
+            } elseif (!$cache instanceof CacheItemPoolInterface) {
+                throw new \InvalidArgumentException(sprintf('Cache argument has to implement "%s".', CacheItemPoolInterface::class));
+            }
+        }
+
+        $this->cache = $cache ?: new ArrayAdapter();
+        $this->registerFunctions();
+        foreach ($providers as $provider) {
+            $this->registerProvider($provider);
+        }
+    }
+
+    /**
+     * Compiles an expression source code.
+     *
+     * @param Expression|string $expression The expression to compile
+     * @param array             $names      An array of valid names
+     *
+     * @return string The compiled PHP source code
+     */
+    public function compile($expression, $names = [])
+    {
+        return $this->getCompiler()->compile($this->parse($expression, $names)->getNodes())->getSource();
+    }
+
+    /**
+     * Evaluate an expression.
+     *
+     * @param Expression|string $expression The expression to compile
+     * @param array             $values     An array of values
+     *
+     * @return mixed The result of the evaluation of the expression
+     */
+    public function evaluate($expression, $values = [])
+    {
+        return $this->parse($expression, array_keys($values))->getNodes()->evaluate($this->functions, $values);
+    }
+
+    /**
+     * Parses an expression.
+     *
+     * @param Expression|string $expression The expression to parse
+     * @param array             $names      An array of valid names
+     *
+     * @return ParsedExpression A ParsedExpression instance
+     */
+    public function parse($expression, $names)
+    {
+        if ($expression instanceof ParsedExpression) {
+            return $expression;
+        }
+
+        asort($names);
+        $cacheKeyItems = [];
+
+        foreach ($names as $nameKey => $name) {
+            $cacheKeyItems[] = \is_int($nameKey) ? $name : $nameKey.':'.$name;
+        }
+
+        $cacheItem = $this->cache->getItem(rawurlencode($expression.'//'.implode('|', $cacheKeyItems)));
+
+        if (null === $parsedExpression = $cacheItem->get()) {
+            $nodes = $this->getParser()->parse($this->getLexer()->tokenize((string) $expression), $names);
+            $parsedExpression = new ParsedExpression((string) $expression, $nodes);
+
+            $cacheItem->set($parsedExpression);
+            $this->cache->save($cacheItem);
+        }
+
+        return $parsedExpression;
+    }
+
+    /**
+     * Registers a function.
+     *
+     * @param string   $name      The function name
+     * @param callable $compiler  A callable able to compile the function
+     * @param callable $evaluator A callable able to evaluate the function
+     *
+     * @throws \LogicException when registering a function after calling evaluate(), compile() or parse()
+     *
+     * @see ExpressionFunction
+     */
+    public function register($name, callable $compiler, callable $evaluator)
+    {
+        if (null !== $this->parser) {
+            throw new \LogicException('Registering functions after calling evaluate(), compile() or parse() is not supported.');
+        }
+
+        $this->functions[$name] = ['compiler' => $compiler, 'evaluator' => $evaluator];
+    }
+
+    public function addFunction(ExpressionFunction $function)
+    {
+        $this->register($function->getName(), $function->getCompiler(), $function->getEvaluator());
+    }
+
+    public function registerProvider(ExpressionFunctionProviderInterface $provider)
+    {
+        foreach ($provider->getFunctions() as $function) {
+            $this->addFunction($function);
+        }
+    }
+
+    protected function registerFunctions()
+    {
+        $this->addFunction(ExpressionFunction::fromPhp('constant'));
+    }
+
+    private function getLexer()
+    {
+        if (null === $this->lexer) {
+            $this->lexer = new Lexer();
+        }
+
+        return $this->lexer;
+    }
+
+    private function getParser()
+    {
+        if (null === $this->parser) {
+            $this->parser = new Parser($this->functions);
+        }
+
+        return $this->parser;
+    }
+
+    private function getCompiler()
+    {
+        if (null === $this->compiler) {
+            $this->compiler = new Compiler($this->functions);
+        }
+
+        return $this->compiler->reset();
+    }
+}

vendor/symfony/expression-language/LICENSE

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+Copyright (c) 2004-2020 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/symfony/expression-language/Lexer.php

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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;
+
+/**
+ * Lexes an expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Lexer
+{
+    /**
+     * Tokenizes an expression.
+     *
+     * @param string $expression The expression to tokenize
+     *
+     * @return TokenStream A token stream instance
+     *
+     * @throws SyntaxError
+     */
+    public function tokenize($expression)
+    {
+        $expression = str_replace(["\r", "\n", "\t", "\v", "\f"], ' ', $expression);
+        $cursor = 0;
+        $tokens = [];
+        $brackets = [];
+        $end = \strlen($expression);
+
+        while ($cursor < $end) {
+            if (' ' == $expression[$cursor]) {
+                ++$cursor;
+
+                continue;
+            }
+
+            if (preg_match('/[0-9]+(?:\.[0-9]+)?/A', $expression, $match, 0, $cursor)) {
+                // numbers
+                $number = (float) $match[0];  // floats
+                if (preg_match('/^[0-9]+$/', $match[0]) && $number <= \PHP_INT_MAX) {
+                    $number = (int) $match[0]; // integers lower than the maximum
+                }
+                $tokens[] = new Token(Token::NUMBER_TYPE, $number, $cursor + 1);
+                $cursor += \strlen($match[0]);
+            } elseif (false !== strpos('([{', $expression[$cursor])) {
+                // opening bracket
+                $brackets[] = [$expression[$cursor], $cursor];
+
+                $tokens[] = new Token(Token::PUNCTUATION_TYPE, $expression[$cursor], $cursor + 1);
+                ++$cursor;
+            } elseif (false !== strpos(')]}', $expression[$cursor])) {
+                // closing bracket
+                if (empty($brackets)) {
+                    throw new SyntaxError(sprintf('Unexpected "%s".', $expression[$cursor]), $cursor, $expression);
+                }
+
+                list($expect, $cur) = array_pop($brackets);
+                if ($expression[$cursor] != strtr($expect, '([{', ')]}')) {
+                    throw new SyntaxError(sprintf('Unclosed "%s".', $expect), $cur, $expression);
+                }
+
+                $tokens[] = new Token(Token::PUNCTUATION_TYPE, $expression[$cursor], $cursor + 1);
+                ++$cursor;
+            } elseif (preg_match('/"([^"\\\\]*(?:\\\\.[^"\\\\]*)*)"|\'([^\'\\\\]*(?:\\\\.[^\'\\\\]*)*)\'/As', $expression, $match, 0, $cursor)) {
+                // strings
+                $tokens[] = new Token(Token::STRING_TYPE, stripcslashes(substr($match[0], 1, -1)), $cursor + 1);
+                $cursor += \strlen($match[0]);
+            } elseif (preg_match('/(?<=^|[\s(])not in(?=[\s(])|\!\=\=|(?<=^|[\s(])not(?=[\s(])|(?<=^|[\s(])and(?=[\s(])|\=\=\=|\>\=|(?<=^|[\s(])or(?=[\s(])|\<\=|\*\*|\.\.|(?<=^|[\s(])in(?=[\s(])|&&|\|\||(?<=^|[\s(])matches|\=\=|\!\=|\*|~|%|\/|\>|\||\!|\^|&|\+|\<|\-/A', $expression, $match, 0, $cursor)) {
+                // operators
+                $tokens[] = new Token(Token::OPERATOR_TYPE, $match[0], $cursor + 1);
+                $cursor += \strlen($match[0]);
+            } elseif (false !== strpos('.,?:', $expression[$cursor])) {
+                // punctuation
+                $tokens[] = new Token(Token::PUNCTUATION_TYPE, $expression[$cursor], $cursor + 1);
+                ++$cursor;
+            } elseif (preg_match('/[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/A', $expression, $match, 0, $cursor)) {
+                // names
+                $tokens[] = new Token(Token::NAME_TYPE, $match[0], $cursor + 1);
+                $cursor += \strlen($match[0]);
+            } else {
+                // unlexable
+                throw new SyntaxError(sprintf('Unexpected character "%s".', $expression[$cursor]), $cursor, $expression);
+            }
+        }
+
+        $tokens[] = new Token(Token::EOF_TYPE, null, $cursor + 1);
+
+        if (!empty($brackets)) {
+            list($expect, $cur) = array_pop($brackets);
+            throw new SyntaxError(sprintf('Unclosed "%s".', $expect), $cur, $expression);
+        }
+
+        return new TokenStream($tokens, $expression);
+    }
+}

vendor/symfony/expression-language/Node/ArgumentsNode.php

@@ -0,0 +1,40 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class ArgumentsNode extends ArrayNode
+{
+    public function compile(Compiler $compiler)
+    {
+        $this->compileArguments($compiler, false);
+    }
+
+    public function toArray()
+    {
+        $array = [];
+
+        foreach ($this->getKeyValuePairs() as $pair) {
+            $array[] = $pair['value'];
+            $array[] = ', ';
+        }
+        array_pop($array);
+
+        return $array;
+    }
+}

vendor/symfony/expression-language/Node/ArrayNode.php

@@ -0,0 +1,118 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class ArrayNode extends Node
+{
+    protected $index;
+
+    public function __construct()
+    {
+        $this->index = -1;
+    }
+
+    public function addElement(Node $value, Node $key = null)
+    {
+        if (null === $key) {
+            $key = new ConstantNode(++$this->index);
+        }
+
+        array_push($this->nodes, $key, $value);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     */
+    public function compile(Compiler $compiler)
+    {
+        $compiler->raw('[');
+        $this->compileArguments($compiler);
+        $compiler->raw(']');
+    }
+
+    public function evaluate($functions, $values)
+    {
+        $result = [];
+        foreach ($this->getKeyValuePairs() as $pair) {
+            $result[$pair['key']->evaluate($functions, $values)] = $pair['value']->evaluate($functions, $values);
+        }
+
+        return $result;
+    }
+
+    public function toArray()
+    {
+        $value = [];
+        foreach ($this->getKeyValuePairs() as $pair) {
+            $value[$pair['key']->attributes['value']] = $pair['value'];
+        }
+
+        $array = [];
+
+        if ($this->isHash($value)) {
+            foreach ($value as $k => $v) {
+                $array[] = ', ';
+                $array[] = new ConstantNode($k);
+                $array[] = ': ';
+                $array[] = $v;
+            }
+            $array[0] = '{';
+            $array[] = '}';
+        } else {
+            foreach ($value as $v) {
+                $array[] = ', ';
+                $array[] = $v;
+            }
+            $array[0] = '[';
+            $array[] = ']';
+        }
+
+        return $array;
+    }
+
+    protected function getKeyValuePairs()
+    {
+        $pairs = [];
+        foreach (array_chunk($this->nodes, 2) as $pair) {
+            $pairs[] = ['key' => $pair[0], 'value' => $pair[1]];
+        }
+
+        return $pairs;
+    }
+
+    protected function compileArguments(Compiler $compiler, $withKeys = true)
+    {
+        $first = true;
+        foreach ($this->getKeyValuePairs() as $pair) {
+            if (!$first) {
+                $compiler->raw(', ');
+            }
+            $first = false;
+
+            if ($withKeys) {
+                $compiler
+                    ->compile($pair['key'])
+                    ->raw(' => ')
+                ;
+            }
+
+            $compiler->compile($pair['value']);
+        }
+    }
+}

vendor/symfony/expression-language/Node/BinaryNode.php

@@ -0,0 +1,170 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class BinaryNode extends Node
+{
+    private static $operators = [
+        '~' => '.',
+        'and' => '&&',
+        'or' => '||',
+    ];
+
+    private static $functions = [
+        '**' => 'pow',
+        '..' => 'range',
+        'in' => 'in_array',
+        'not in' => '!in_array',
+    ];
+
+    public function __construct($operator, Node $left, Node $right)
+    {
+        parent::__construct(
+            ['left' => $left, 'right' => $right],
+            ['operator' => $operator]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $operator = $this->attributes['operator'];
+
+        if ('matches' == $operator) {
+            $compiler
+                ->raw('preg_match(')
+                ->compile($this->nodes['right'])
+                ->raw(', ')
+                ->compile($this->nodes['left'])
+                ->raw(')')
+            ;
+
+            return;
+        }
+
+        if (isset(self::$functions[$operator])) {
+            $compiler
+                ->raw(sprintf('%s(', self::$functions[$operator]))
+                ->compile($this->nodes['left'])
+                ->raw(', ')
+                ->compile($this->nodes['right'])
+                ->raw(')')
+            ;
+
+            return;
+        }
+
+        if (isset(self::$operators[$operator])) {
+            $operator = self::$operators[$operator];
+        }
+
+        $compiler
+            ->raw('(')
+            ->compile($this->nodes['left'])
+            ->raw(' ')
+            ->raw($operator)
+            ->raw(' ')
+            ->compile($this->nodes['right'])
+            ->raw(')')
+        ;
+    }
+
+    public function evaluate($functions, $values)
+    {
+        $operator = $this->attributes['operator'];
+        $left = $this->nodes['left']->evaluate($functions, $values);
+
+        if (isset(self::$functions[$operator])) {
+            $right = $this->nodes['right']->evaluate($functions, $values);
+
+            if ('not in' === $operator) {
+                return !\in_array($left, $right);
+            }
+            $f = self::$functions[$operator];
+
+            return $f($left, $right);
+        }
+
+        switch ($operator) {
+            case 'or':
+            case '||':
+                return $left || $this->nodes['right']->evaluate($functions, $values);
+            case 'and':
+            case '&&':
+                return $left && $this->nodes['right']->evaluate($functions, $values);
+        }
+
+        $right = $this->nodes['right']->evaluate($functions, $values);
+
+        switch ($operator) {
+            case '|':
+                return $left | $right;
+            case '^':
+                return $left ^ $right;
+            case '&':
+                return $left & $right;
+            case '==':
+                return $left == $right;
+            case '===':
+                return $left === $right;
+            case '!=':
+                return $left != $right;
+            case '!==':
+                return $left !== $right;
+            case '<':
+                return $left < $right;
+            case '>':
+                return $left > $right;
+            case '>=':
+                return $left >= $right;
+            case '<=':
+                return $left <= $right;
+            case 'not in':
+                return !\in_array($left, $right);
+            case 'in':
+                return \in_array($left, $right);
+            case '+':
+                return $left + $right;
+            case '-':
+                return $left - $right;
+            case '~':
+                return $left.$right;
+            case '*':
+                return $left * $right;
+            case '/':
+                if (0 == $right) {
+                    throw new \DivisionByZeroError('Division by zero.');
+                }
+
+                return $left / $right;
+            case '%':
+                if (0 == $right) {
+                    throw new \DivisionByZeroError('Modulo by zero.');
+                }
+
+                return $left % $right;
+            case 'matches':
+                return preg_match($right, $left);
+        }
+    }
+
+    public function toArray()
+    {
+        return ['(', $this->nodes['left'], ' '.$this->attributes['operator'].' ', $this->nodes['right'], ')'];
+    }
+}

vendor/symfony/expression-language/Node/ConditionalNode.php

@@ -0,0 +1,56 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class ConditionalNode extends Node
+{
+    public function __construct(Node $expr1, Node $expr2, Node $expr3)
+    {
+        parent::__construct(
+            ['expr1' => $expr1, 'expr2' => $expr2, 'expr3' => $expr3]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $compiler
+            ->raw('((')
+            ->compile($this->nodes['expr1'])
+            ->raw(') ? (')
+            ->compile($this->nodes['expr2'])
+            ->raw(') : (')
+            ->compile($this->nodes['expr3'])
+            ->raw('))')
+        ;
+    }
+
+    public function evaluate($functions, $values)
+    {
+        if ($this->nodes['expr1']->evaluate($functions, $values)) {
+            return $this->nodes['expr2']->evaluate($functions, $values);
+        }
+
+        return $this->nodes['expr3']->evaluate($functions, $values);
+    }
+
+    public function toArray()
+    {
+        return ['(', $this->nodes['expr1'], ' ? ', $this->nodes['expr2'], ' : ', $this->nodes['expr3'], ')'];
+    }
+}

vendor/symfony/expression-language/Node/ConstantNode.php

@@ -0,0 +1,81 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class ConstantNode extends Node
+{
+    private $isIdentifier;
+
+    public function __construct($value, $isIdentifier = false)
+    {
+        $this->isIdentifier = $isIdentifier;
+        parent::__construct(
+            [],
+            ['value' => $value]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $compiler->repr($this->attributes['value']);
+    }
+
+    public function evaluate($functions, $values)
+    {
+        return $this->attributes['value'];
+    }
+
+    public function toArray()
+    {
+        $array = [];
+        $value = $this->attributes['value'];
+
+        if ($this->isIdentifier) {
+            $array[] = $value;
+        } elseif (true === $value) {
+            $array[] = 'true';
+        } elseif (false === $value) {
+            $array[] = 'false';
+        } elseif (null === $value) {
+            $array[] = 'null';
+        } elseif (is_numeric($value)) {
+            $array[] = $value;
+        } elseif (!\is_array($value)) {
+            $array[] = $this->dumpString($value);
+        } elseif ($this->isHash($value)) {
+            foreach ($value as $k => $v) {
+                $array[] = ', ';
+                $array[] = new self($k);
+                $array[] = ': ';
+                $array[] = new self($v);
+            }
+            $array[0] = '{';
+            $array[] = '}';
+        } else {
+            foreach ($value as $v) {
+                $array[] = ', ';
+                $array[] = new self($v);
+            }
+            $array[0] = '[';
+            $array[] = ']';
+        }
+
+        return $array;
+    }
+}

vendor/symfony/expression-language/Node/FunctionNode.php

@@ -0,0 +1,67 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class FunctionNode extends Node
+{
+    public function __construct($name, Node $arguments)
+    {
+        parent::__construct(
+            ['arguments' => $arguments],
+            ['name' => $name]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $arguments = [];
+        foreach ($this->nodes['arguments']->nodes as $node) {
+            $arguments[] = $compiler->subcompile($node);
+        }
+
+        $function = $compiler->getFunction($this->attributes['name']);
+
+        $compiler->raw(\call_user_func_array($function['compiler'], $arguments));
+    }
+
+    public function evaluate($functions, $values)
+    {
+        $arguments = [$values];
+        foreach ($this->nodes['arguments']->nodes as $node) {
+            $arguments[] = $node->evaluate($functions, $values);
+        }
+
+        return \call_user_func_array($functions[$this->attributes['name']]['evaluator'], $arguments);
+    }
+
+    public function toArray()
+    {
+        $array = [];
+        $array[] = $this->attributes['name'];
+
+        foreach ($this->nodes['arguments']->nodes as $node) {
+            $array[] = ', ';
+            $array[] = $node;
+        }
+        $array[1] = '(';
+        $array[] = ')';
+
+        return $array;
+    }
+}

vendor/symfony/expression-language/Node/GetAttrNode.php

@@ -0,0 +1,120 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class GetAttrNode extends Node
+{
+    const PROPERTY_CALL = 1;
+    const METHOD_CALL = 2;
+    const ARRAY_CALL = 3;
+
+    public function __construct(Node $node, Node $attribute, ArrayNode $arguments, $type)
+    {
+        parent::__construct(
+            ['node' => $node, 'attribute' => $attribute, 'arguments' => $arguments],
+            ['type' => $type]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        switch ($this->attributes['type']) {
+            case self::PROPERTY_CALL:
+                $compiler
+                    ->compile($this->nodes['node'])
+                    ->raw('->')
+                    ->raw($this->nodes['attribute']->attributes['value'])
+                ;
+                break;
+
+            case self::METHOD_CALL:
+                $compiler
+                    ->compile($this->nodes['node'])
+                    ->raw('->')
+                    ->raw($this->nodes['attribute']->attributes['value'])
+                    ->raw('(')
+                    ->compile($this->nodes['arguments'])
+                    ->raw(')')
+                ;
+                break;
+
+            case self::ARRAY_CALL:
+                $compiler
+                    ->compile($this->nodes['node'])
+                    ->raw('[')
+                    ->compile($this->nodes['attribute'])->raw(']')
+                ;
+                break;
+        }
+    }
+
+    public function evaluate($functions, $values)
+    {
+        switch ($this->attributes['type']) {
+            case self::PROPERTY_CALL:
+                $obj = $this->nodes['node']->evaluate($functions, $values);
+                if (!\is_object($obj)) {
+                    throw new \RuntimeException('Unable to get a property on a non-object.');
+                }
+
+                $property = $this->nodes['attribute']->attributes['value'];
+
+                return $obj->$property;
+
+            case self::METHOD_CALL:
+                $obj = $this->nodes['node']->evaluate($functions, $values);
+                if (!\is_object($obj)) {
+                    throw new \RuntimeException('Unable to get a property on a non-object.');
+                }
+                if (!\is_callable($toCall = [$obj, $this->nodes['attribute']->attributes['value']])) {
+                    throw new \RuntimeException(sprintf('Unable to call method "%s" of object "%s".', $this->nodes['attribute']->attributes['value'], \get_class($obj)));
+                }
+
+                $arguments = $this->nodes['arguments']->evaluate($functions, $values);
+
+                if (\PHP_VERSION_ID >= 80000) {
+                    $arguments = array_values($arguments);
+                }
+
+                return \call_user_func_array($toCall, $arguments);
+
+            case self::ARRAY_CALL:
+                $array = $this->nodes['node']->evaluate($functions, $values);
+                if (!\is_array($array) && !$array instanceof \ArrayAccess) {
+                    throw new \RuntimeException('Unable to get an item on a non-array.');
+                }
+
+                return $array[$this->nodes['attribute']->evaluate($functions, $values)];
+        }
+    }
+
+    public function toArray()
+    {
+        switch ($this->attributes['type']) {
+            case self::PROPERTY_CALL:
+                return [$this->nodes['node'], '.', $this->nodes['attribute']];
+
+            case self::METHOD_CALL:
+                return [$this->nodes['node'], '.', $this->nodes['attribute'], '(', $this->nodes['arguments'], ')'];
+
+            case self::ARRAY_CALL:
+                return [$this->nodes['node'], '[', $this->nodes['attribute'], ']'];
+        }
+    }
+}

vendor/symfony/expression-language/Node/NameNode.php

@@ -0,0 +1,45 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class NameNode extends Node
+{
+    public function __construct($name)
+    {
+        parent::__construct(
+            [],
+            ['name' => $name]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $compiler->raw('$'.$this->attributes['name']);
+    }
+
+    public function evaluate($functions, $values)
+    {
+        return $values[$this->attributes['name']];
+    }
+
+    public function toArray()
+    {
+        return [$this->attributes['name']];
+    }
+}

vendor/symfony/expression-language/Node/Node.php

@@ -0,0 +1,110 @@
+<?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;
+    }
+
+    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($functions, $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 $dump;
+    }
+
+    protected function dumpString($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;
+    }
+}

vendor/symfony/expression-language/Node/UnaryNode.php

@@ -0,0 +1,66 @@
+<?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;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @internal
+ */
+class UnaryNode extends Node
+{
+    private static $operators = [
+        '!' => '!',
+        'not' => '!',
+        '+' => '+',
+        '-' => '-',
+    ];
+
+    public function __construct($operator, Node $node)
+    {
+        parent::__construct(
+            ['node' => $node],
+            ['operator' => $operator]
+        );
+    }
+
+    public function compile(Compiler $compiler)
+    {
+        $compiler
+            ->raw('(')
+            ->raw(self::$operators[$this->attributes['operator']])
+            ->compile($this->nodes['node'])
+            ->raw(')')
+        ;
+    }
+
+    public function evaluate($functions, $values)
+    {
+        $value = $this->nodes['node']->evaluate($functions, $values);
+        switch ($this->attributes['operator']) {
+            case 'not':
+            case '!':
+                return !$value;
+            case '-':
+                return -$value;
+        }
+
+        return $value;
+    }
+
+    public function toArray()
+    {
+        return ['(', $this->attributes['operator'].' ', $this->nodes['node'], ')'];
+    }
+}

vendor/symfony/expression-language/ParsedExpression.php

@@ -0,0 +1,40 @@
+<?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;
+
+use Symfony\Component\ExpressionLanguage\Node\Node;
+
+/**
+ * Represents an already parsed expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ParsedExpression extends Expression
+{
+    private $nodes;
+
+    /**
+     * @param string $expression An expression
+     * @param Node   $nodes      A Node representing the expression
+     */
+    public function __construct($expression, Node $nodes)
+    {
+        parent::__construct($expression);
+
+        $this->nodes = $nodes;
+    }
+
+    public function getNodes()
+    {
+        return $this->nodes;
+    }
+}

vendor/symfony/expression-language/Parser.php

@@ -0,0 +1,380 @@
+<?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;
+
+/**
+ * Parsers a token stream.
+ *
+ * This parser implements a "Precedence climbing" algorithm.
+ *
+ * @see http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm
+ * @see http://en.wikipedia.org/wiki/Operator-precedence_parser
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Parser
+{
+    const OPERATOR_LEFT = 1;
+    const OPERATOR_RIGHT = 2;
+
+    private $stream;
+    private $unaryOperators;
+    private $binaryOperators;
+    private $functions;
+    private $names;
+
+    public function __construct(array $functions)
+    {
+        $this->functions = $functions;
+
+        $this->unaryOperators = [
+            'not' => ['precedence' => 50],
+            '!' => ['precedence' => 50],
+            '-' => ['precedence' => 500],
+            '+' => ['precedence' => 500],
+        ];
+        $this->binaryOperators = [
+            'or' => ['precedence' => 10, 'associativity' => self::OPERATOR_LEFT],
+            '||' => ['precedence' => 10, 'associativity' => self::OPERATOR_LEFT],
+            'and' => ['precedence' => 15, 'associativity' => self::OPERATOR_LEFT],
+            '&&' => ['precedence' => 15, 'associativity' => self::OPERATOR_LEFT],
+            '|' => ['precedence' => 16, 'associativity' => self::OPERATOR_LEFT],
+            '^' => ['precedence' => 17, 'associativity' => self::OPERATOR_LEFT],
+            '&' => ['precedence' => 18, 'associativity' => self::OPERATOR_LEFT],
+            '==' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '===' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '!=' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '!==' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '<' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '>' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '>=' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '<=' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            'not in' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            'in' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            'matches' => ['precedence' => 20, 'associativity' => self::OPERATOR_LEFT],
+            '..' => ['precedence' => 25, 'associativity' => self::OPERATOR_LEFT],
+            '+' => ['precedence' => 30, 'associativity' => self::OPERATOR_LEFT],
+            '-' => ['precedence' => 30, 'associativity' => self::OPERATOR_LEFT],
+            '~' => ['precedence' => 40, 'associativity' => self::OPERATOR_LEFT],
+            '*' => ['precedence' => 60, 'associativity' => self::OPERATOR_LEFT],
+            '/' => ['precedence' => 60, 'associativity' => self::OPERATOR_LEFT],
+            '%' => ['precedence' => 60, 'associativity' => self::OPERATOR_LEFT],
+            '**' => ['precedence' => 200, 'associativity' => self::OPERATOR_RIGHT],
+        ];
+    }
+
+    /**
+     * Converts a token stream to a node tree.
+     *
+     * The valid names is an array where the values
+     * are the names that the user can use in an expression.
+     *
+     * If the variable name in the compiled PHP code must be
+     * different, define it as the key.
+     *
+     * For instance, ['this' => 'container'] means that the
+     * variable 'container' can be used in the expression
+     * but the compiled code will use 'this'.
+     *
+     * @param TokenStream $stream A token stream instance
+     * @param array       $names  An array of valid names
+     *
+     * @return Node\Node A node tree
+     *
+     * @throws SyntaxError
+     */
+    public function parse(TokenStream $stream, $names = [])
+    {
+        $this->stream = $stream;
+        $this->names = $names;
+
+        $node = $this->parseExpression();
+        if (!$stream->isEOF()) {
+            throw new SyntaxError(sprintf('Unexpected token "%s" of value "%s".', $stream->current->type, $stream->current->value), $stream->current->cursor, $stream->getExpression());
+        }
+
+        return $node;
+    }
+
+    public function parseExpression($precedence = 0)
+    {
+        $expr = $this->getPrimary();
+        $token = $this->stream->current;
+        while ($token->test(Token::OPERATOR_TYPE) && isset($this->binaryOperators[$token->value]) && $this->binaryOperators[$token->value]['precedence'] >= $precedence) {
+            $op = $this->binaryOperators[$token->value];
+            $this->stream->next();
+
+            $expr1 = $this->parseExpression(self::OPERATOR_LEFT === $op['associativity'] ? $op['precedence'] + 1 : $op['precedence']);
+            $expr = new Node\BinaryNode($token->value, $expr, $expr1);
+
+            $token = $this->stream->current;
+        }
+
+        if (0 === $precedence) {
+            return $this->parseConditionalExpression($expr);
+        }
+
+        return $expr;
+    }
+
+    protected function getPrimary()
+    {
+        $token = $this->stream->current;
+
+        if ($token->test(Token::OPERATOR_TYPE) && isset($this->unaryOperators[$token->value])) {
+            $operator = $this->unaryOperators[$token->value];
+            $this->stream->next();
+            $expr = $this->parseExpression($operator['precedence']);
+
+            return $this->parsePostfixExpression(new Node\UnaryNode($token->value, $expr));
+        }
+
+        if ($token->test(Token::PUNCTUATION_TYPE, '(')) {
+            $this->stream->next();
+            $expr = $this->parseExpression();
+            $this->stream->expect(Token::PUNCTUATION_TYPE, ')', 'An opened parenthesis is not properly closed');
+
+            return $this->parsePostfixExpression($expr);
+        }
+
+        return $this->parsePrimaryExpression();
+    }
+
+    protected function parseConditionalExpression($expr)
+    {
+        while ($this->stream->current->test(Token::PUNCTUATION_TYPE, '?')) {
+            $this->stream->next();
+            if (!$this->stream->current->test(Token::PUNCTUATION_TYPE, ':')) {
+                $expr2 = $this->parseExpression();
+                if ($this->stream->current->test(Token::PUNCTUATION_TYPE, ':')) {
+                    $this->stream->next();
+                    $expr3 = $this->parseExpression();
+                } else {
+                    $expr3 = new Node\ConstantNode(null);
+                }
+            } else {
+                $this->stream->next();
+                $expr2 = $expr;
+                $expr3 = $this->parseExpression();
+            }
+
+            $expr = new Node\ConditionalNode($expr, $expr2, $expr3);
+        }
+
+        return $expr;
+    }
+
+    public function parsePrimaryExpression()
+    {
+        $token = $this->stream->current;
+        switch ($token->type) {
+            case Token::NAME_TYPE:
+                $this->stream->next();
+                switch ($token->value) {
+                    case 'true':
+                    case 'TRUE':
+                        return new Node\ConstantNode(true);
+
+                    case 'false':
+                    case 'FALSE':
+                        return new Node\ConstantNode(false);
+
+                    case 'null':
+                    case 'NULL':
+                        return new Node\ConstantNode(null);
+
+                    default:
+                        if ('(' === $this->stream->current->value) {
+                            if (false === isset($this->functions[$token->value])) {
+                                throw new SyntaxError(sprintf('The function "%s" does not exist.', $token->value), $token->cursor, $this->stream->getExpression(), $token->value, array_keys($this->functions));
+                            }
+
+                            $node = new Node\FunctionNode($token->value, $this->parseArguments());
+                        } else {
+                            if (!\in_array($token->value, $this->names, true)) {
+                                throw new SyntaxError(sprintf('Variable "%s" is not valid.', $token->value), $token->cursor, $this->stream->getExpression(), $token->value, $this->names);
+                            }
+
+                            // is the name used in the compiled code different
+                            // from the name used in the expression?
+                            if (\is_int($name = array_search($token->value, $this->names))) {
+                                $name = $token->value;
+                            }
+
+                            $node = new Node\NameNode($name);
+                        }
+                }
+                break;
+
+            case Token::NUMBER_TYPE:
+            case Token::STRING_TYPE:
+                $this->stream->next();
+
+                return new Node\ConstantNode($token->value);
+
+            default:
+                if ($token->test(Token::PUNCTUATION_TYPE, '[')) {
+                    $node = $this->parseArrayExpression();
+                } elseif ($token->test(Token::PUNCTUATION_TYPE, '{')) {
+                    $node = $this->parseHashExpression();
+                } else {
+                    throw new SyntaxError(sprintf('Unexpected token "%s" of value "%s".', $token->type, $token->value), $token->cursor, $this->stream->getExpression());
+                }
+        }
+
+        return $this->parsePostfixExpression($node);
+    }
+
+    public function parseArrayExpression()
+    {
+        $this->stream->expect(Token::PUNCTUATION_TYPE, '[', 'An array element was expected');
+
+        $node = new Node\ArrayNode();
+        $first = true;
+        while (!$this->stream->current->test(Token::PUNCTUATION_TYPE, ']')) {
+            if (!$first) {
+                $this->stream->expect(Token::PUNCTUATION_TYPE, ',', 'An array element must be followed by a comma');
+
+                // trailing ,?
+                if ($this->stream->current->test(Token::PUNCTUATION_TYPE, ']')) {
+                    break;
+                }
+            }
+            $first = false;
+
+            $node->addElement($this->parseExpression());
+        }
+        $this->stream->expect(Token::PUNCTUATION_TYPE, ']', 'An opened array is not properly closed');
+
+        return $node;
+    }
+
+    public function parseHashExpression()
+    {
+        $this->stream->expect(Token::PUNCTUATION_TYPE, '{', 'A hash element was expected');
+
+        $node = new Node\ArrayNode();
+        $first = true;
+        while (!$this->stream->current->test(Token::PUNCTUATION_TYPE, '}')) {
+            if (!$first) {
+                $this->stream->expect(Token::PUNCTUATION_TYPE, ',', 'A hash value must be followed by a comma');
+
+                // trailing ,?
+                if ($this->stream->current->test(Token::PUNCTUATION_TYPE, '}')) {
+                    break;
+                }
+            }
+            $first = false;
+
+            // a hash key can be:
+            //
+            //  * a number -- 12
+            //  * a string -- 'a'
+            //  * a name, which is equivalent to a string -- a
+            //  * an expression, which must be enclosed in parentheses -- (1 + 2)
+            if ($this->stream->current->test(Token::STRING_TYPE) || $this->stream->current->test(Token::NAME_TYPE) || $this->stream->current->test(Token::NUMBER_TYPE)) {
+                $key = new Node\ConstantNode($this->stream->current->value);
+                $this->stream->next();
+            } elseif ($this->stream->current->test(Token::PUNCTUATION_TYPE, '(')) {
+                $key = $this->parseExpression();
+            } else {
+                $current = $this->stream->current;
+
+                throw new SyntaxError(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s".', $current->type, $current->value), $current->cursor, $this->stream->getExpression());
+            }
+
+            $this->stream->expect(Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)');
+            $value = $this->parseExpression();
+
+            $node->addElement($value, $key);
+        }
+        $this->stream->expect(Token::PUNCTUATION_TYPE, '}', 'An opened hash is not properly closed');
+
+        return $node;
+    }
+
+    public function parsePostfixExpression($node)
+    {
+        $token = $this->stream->current;
+        while (Token::PUNCTUATION_TYPE == $token->type) {
+            if ('.' === $token->value) {
+                $this->stream->next();
+                $token = $this->stream->current;
+                $this->stream->next();
+
+                if (
+                    Token::NAME_TYPE !== $token->type
+                    &&
+                    // Operators like "not" and "matches" are valid method or property names,
+                    //
+                    // In other words, besides NAME_TYPE, OPERATOR_TYPE could also be parsed as a property or method.
+                    // This is because operators are processed by the lexer prior to names. So "not" in "foo.not()" or "matches" in "foo.matches" will be recognized as an operator first.
+                    // But in fact, "not" and "matches" in such expressions shall be parsed as method or property names.
+                    //
+                    // And this ONLY works if the operator consists of valid characters for a property or method name.
+                    //
+                    // Other types, such as STRING_TYPE and NUMBER_TYPE, can't be parsed as property nor method names.
+                    //
+                    // As a result, if $token is NOT an operator OR $token->value is NOT a valid property or method name, an exception shall be thrown.
+                    (Token::OPERATOR_TYPE !== $token->type || !preg_match('/[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/A', $token->value))
+                ) {
+                    throw new SyntaxError('Expected name.', $token->cursor, $this->stream->getExpression());
+                }
+
+                $arg = new Node\ConstantNode($token->value, true);
+
+                $arguments = new Node\ArgumentsNode();
+                if ($this->stream->current->test(Token::PUNCTUATION_TYPE, '(')) {
+                    $type = Node\GetAttrNode::METHOD_CALL;
+                    foreach ($this->parseArguments()->nodes as $n) {
+                        $arguments->addElement($n);
+                    }
+                } else {
+                    $type = Node\GetAttrNode::PROPERTY_CALL;
+                }
+
+                $node = new Node\GetAttrNode($node, $arg, $arguments, $type);
+            } elseif ('[' === $token->value) {
+                $this->stream->next();
+                $arg = $this->parseExpression();
+                $this->stream->expect(Token::PUNCTUATION_TYPE, ']');
+
+                $node = new Node\GetAttrNode($node, $arg, new Node\ArgumentsNode(), Node\GetAttrNode::ARRAY_CALL);
+            } else {
+                break;
+            }
+
+            $token = $this->stream->current;
+        }
+
+        return $node;
+    }
+
+    /**
+     * Parses arguments.
+     */
+    public function parseArguments()
+    {
+        $args = [];
+        $this->stream->expect(Token::PUNCTUATION_TYPE, '(', 'A list of arguments must begin with an opening parenthesis');
+        while (!$this->stream->current->test(Token::PUNCTUATION_TYPE, ')')) {
+            if (!empty($args)) {
+                $this->stream->expect(Token::PUNCTUATION_TYPE, ',', 'Arguments must be separated by a comma');
+            }
+
+            $args[] = $this->parseExpression();
+        }
+        $this->stream->expect(Token::PUNCTUATION_TYPE, ')', 'A list of arguments must be closed by a parenthesis');
+
+        return new Node\Node($args);
+    }
+}

vendor/symfony/expression-language/ParserCache/ArrayParserCache.php

@@ -0,0 +1,42 @@
+<?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\ParserCache;
+
+@trigger_error('The '.__NAMESPACE__.'\ArrayParserCache class is deprecated since Symfony 3.2 and will be removed in 4.0. Use the Symfony\Component\Cache\Adapter\ArrayAdapter class instead.', \E_USER_DEPRECATED);
+
+use Symfony\Component\ExpressionLanguage\ParsedExpression;
+
+/**
+ * @author Adrien Brault <adrien.brault@gmail.com>
+ *
+ * @deprecated ArrayParserCache class is deprecated since version 3.2 and will be removed in 4.0. Use the Symfony\Component\Cache\Adapter\ArrayAdapter class instead.
+ */
+class ArrayParserCache implements ParserCacheInterface
+{
+    private $cache = [];
+
+    /**
+     * {@inheritdoc}
+     */
+    public function fetch($key)
+    {
+        return isset($this->cache[$key]) ? $this->cache[$key] : null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save($key, ParsedExpression $expression)
+    {
+        $this->cache[$key] = $expression;
+    }
+}

vendor/symfony/expression-language/ParserCache/ParserCacheAdapter.php

@@ -0,0 +1,120 @@
+<?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\ParserCache;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Symfony\Component\Cache\CacheItem;
+
+/**
+ * @author Alexandre GESLIN <alexandre@gesl.in>
+ *
+ * @internal and will be removed in Symfony 4.0.
+ */
+class ParserCacheAdapter implements CacheItemPoolInterface
+{
+    private $pool;
+    private $createCacheItem;
+
+    public function __construct(ParserCacheInterface $pool)
+    {
+        $this->pool = $pool;
+
+        $this->createCacheItem = \Closure::bind(
+            static function ($key, $value, $isHit) {
+                $item = new CacheItem();
+                $item->key = $key;
+                $item->value = $value;
+                $item->isHit = $isHit;
+
+                return $item;
+            },
+            null,
+            CacheItem::class
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        $value = $this->pool->fetch($key);
+        $f = $this->createCacheItem;
+
+        return $f($key, $value, null !== $value);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $this->pool->save($item->getKey(), $item->get());
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        throw new \BadMethodCallException('Not implemented.');
+    }
+}

vendor/symfony/expression-language/ParserCache/ParserCacheInterface.php

@@ -0,0 +1,41 @@
+<?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\ParserCache;
+
+@trigger_error('The '.__NAMESPACE__.'\ParserCacheInterface interface is deprecated since Symfony 3.2 and will be removed in 4.0. Use Psr\Cache\CacheItemPoolInterface instead.', \E_USER_DEPRECATED);
+
+use Symfony\Component\ExpressionLanguage\ParsedExpression;
+
+/**
+ * @author Adrien Brault <adrien.brault@gmail.com>
+ *
+ * @deprecated since version 3.2, to be removed in 4.0. Use Psr\Cache\CacheItemPoolInterface instead.
+ */
+interface ParserCacheInterface
+{
+    /**
+     * Saves an expression in the cache.
+     *
+     * @param string           $key        The cache key
+     * @param ParsedExpression $expression A ParsedExpression instance to store in the cache
+     */
+    public function save($key, ParsedExpression $expression);
+
+    /**
+     * Fetches an expression from the cache.
+     *
+     * @param string $key The cache key
+     *
+     * @return ParsedExpression|null
+     */
+    public function fetch($key);
+}

vendor/symfony/expression-language/README.md

@@ -0,0 +1,15 @@
+ExpressionLanguage Component
+============================
+
+The ExpressionLanguage component provides an engine that can compile and
+evaluate expressions. An expression is a one-liner that returns a value
+(mostly, but not limited to, Booleans).
+
+Resources
+---------
+
+  * [Documentation](https://symfony.com/doc/current/components/expression_language/introduction.html)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)

vendor/symfony/expression-language/Resources/bin/generate_operator_regex.php

@@ -0,0 +1,27 @@
+<?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.
+ */
+
+$operators = ['not', '!', 'or', '||', '&&', 'and', '|', '^', '&', '==', '===', '!=', '!==', '<', '>', '>=', '<=', 'not in', 'in', '..', '+', '-', '~', '*', '/', '%', 'matches', '**'];
+$operators = array_combine($operators, array_map('strlen', $operators));
+arsort($operators);
+
+$regex = [];
+foreach ($operators as $operator => $length) {
+    // Collisions of character operators:
+    // - an operator that begins with a character must have a space or a parenthesis before or starting at the beginning of a string
+    // - an operator that ends with a character must be followed by a whitespace or a parenthesis
+    $regex[] =
+        (ctype_alpha($operator[0]) ? '(?<=^|[\s(])' : '')
+        .preg_quote($operator, '/')
+        .(ctype_alpha($operator[$length - 1]) ? '(?=[\s(])' : '');
+}
+
+echo '/'.implode('|', $regex).'/A';

vendor/symfony/expression-language/SerializedParsedExpression.php

@@ -0,0 +1,37 @@
+<?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;
+
+/**
+ * Represents an already parsed expression.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class SerializedParsedExpression extends ParsedExpression
+{
+    private $nodes;
+
+    /**
+     * @param string $expression An expression
+     * @param string $nodes      The serialized nodes for the expression
+     */
+    public function __construct($expression, $nodes)
+    {
+        $this->expression = (string) $expression;
+        $this->nodes = $nodes;
+    }
+
+    public function getNodes()
+    {
+        return unserialize($this->nodes);
+    }
+}

vendor/symfony/expression-language/SyntaxError.php

@@ -0,0 +1,41 @@
+<?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;
+
+class SyntaxError extends \LogicException
+{
+    public function __construct($message, $cursor = 0, $expression = '', $subject = null, array $proposals = null)
+    {
+        $message = sprintf('%s around position %d', rtrim($message, '.'), $cursor);
+        if ($expression) {
+            $message = sprintf('%s for expression `%s`', $message, $expression);
+        }
+        $message .= '.';
+
+        if (null !== $subject && null !== $proposals) {
+            $minScore = \INF;
+            foreach ($proposals as $proposal) {
+                $distance = levenshtein($subject, $proposal);
+                if ($distance < $minScore) {
+                    $guess = $proposal;
+                    $minScore = $distance;
+                }
+            }
+
+            if (isset($guess) && $minScore < 3) {
+                $message .= sprintf(' Did you mean "%s"?', $guess);
+            }
+        }
+
+        parent::__construct($message);
+    }
+}

vendor/symfony/expression-language/Tests/ExpressionFunctionTest.php

@@ -0,0 +1,41 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+
+/**
+ * Tests ExpressionFunction.
+ *
+ * @author Dany Maillard <danymaillard93b@gmail.com>
+ */
+class ExpressionFunctionTest extends TestCase
+{
+    public function testFunctionDoesNotExist()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('PHP function "fn_does_not_exist" does not exist.');
+        ExpressionFunction::fromPhp('fn_does_not_exist');
+    }
+
+    public function testFunctionNamespaced()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('An expression function name must be defined when PHP function "Symfony\Component\ExpressionLanguage\Tests\fn_namespaced" is namespaced.');
+        ExpressionFunction::fromPhp('Symfony\Component\ExpressionLanguage\Tests\fn_namespaced');
+    }
+}
+
+function fn_namespaced()
+{
+}

vendor/symfony/expression-language/Tests/ExpressionLanguageTest.php

@@ -0,0 +1,308 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
+use Symfony\Component\ExpressionLanguage\ParsedExpression;
+use Symfony\Component\ExpressionLanguage\Tests\Fixtures\TestProvider;
+
+class ExpressionLanguageTest extends TestCase
+{
+    public function testCachedParse()
+    {
+        $cacheMock = $this->getMockBuilder('Psr\Cache\CacheItemPoolInterface')->getMock();
+        $cacheItemMock = $this->getMockBuilder('Psr\Cache\CacheItemInterface')->getMock();
+        $savedParsedExpression = null;
+        $expressionLanguage = new ExpressionLanguage($cacheMock);
+
+        $cacheMock
+            ->expects($this->exactly(2))
+            ->method('getItem')
+            ->with('1%20%2B%201%2F%2F')
+            ->willReturn($cacheItemMock)
+        ;
+
+        $cacheItemMock
+            ->expects($this->exactly(2))
+            ->method('get')
+            ->willReturnCallback(function () use (&$savedParsedExpression) {
+                return $savedParsedExpression;
+            })
+        ;
+
+        $cacheItemMock
+            ->expects($this->exactly(1))
+            ->method('set')
+            ->with($this->isInstanceOf(ParsedExpression::class))
+            ->willReturnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
+                $savedParsedExpression = $parsedExpression;
+            })
+        ;
+
+        $cacheMock
+            ->expects($this->exactly(1))
+            ->method('save')
+            ->with($cacheItemMock)
+        ;
+
+        $parsedExpression = $expressionLanguage->parse('1 + 1', []);
+        $this->assertSame($savedParsedExpression, $parsedExpression);
+
+        $parsedExpression = $expressionLanguage->parse('1 + 1', []);
+        $this->assertSame($savedParsedExpression, $parsedExpression);
+    }
+
+    /**
+     * @group legacy
+     */
+    public function testCachedParseWithDeprecatedParserCacheInterface()
+    {
+        $cacheMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+
+        $savedParsedExpression = null;
+        $expressionLanguage = new ExpressionLanguage($cacheMock);
+
+        $cacheMock
+            ->expects($this->exactly(1))
+            ->method('fetch')
+            ->with('1%20%2B%201%2F%2F')
+            ->willReturn($savedParsedExpression)
+        ;
+
+        $cacheMock
+            ->expects($this->exactly(1))
+            ->method('save')
+            ->with('1%20%2B%201%2F%2F', $this->isInstanceOf(ParsedExpression::class))
+            ->willReturnCallback(function ($key, $expression) use (&$savedParsedExpression) {
+                $savedParsedExpression = $expression;
+            })
+        ;
+
+        $parsedExpression = $expressionLanguage->parse('1 + 1', []);
+        $this->assertSame($savedParsedExpression, $parsedExpression);
+    }
+
+    public function testWrongCacheImplementation()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('Cache argument has to implement "Psr\Cache\CacheItemPoolInterface".');
+        $cacheMock = $this->getMockBuilder('Psr\Cache\CacheItemSpoolInterface')->getMock();
+        new ExpressionLanguage($cacheMock);
+    }
+
+    public function testConstantFunction()
+    {
+        $expressionLanguage = new ExpressionLanguage();
+        $this->assertEquals(\PHP_VERSION, $expressionLanguage->evaluate('constant("PHP_VERSION")'));
+
+        $expressionLanguage = new ExpressionLanguage();
+        $this->assertEquals('\constant("PHP_VERSION")', $expressionLanguage->compile('constant("PHP_VERSION")'));
+    }
+
+    public function testProviders()
+    {
+        $expressionLanguage = new ExpressionLanguage(null, [new TestProvider()]);
+        $this->assertEquals('foo', $expressionLanguage->evaluate('identity("foo")'));
+        $this->assertEquals('"foo"', $expressionLanguage->compile('identity("foo")'));
+        $this->assertEquals('FOO', $expressionLanguage->evaluate('strtoupper("foo")'));
+        $this->assertEquals('\strtoupper("foo")', $expressionLanguage->compile('strtoupper("foo")'));
+        $this->assertEquals('foo', $expressionLanguage->evaluate('strtolower("FOO")'));
+        $this->assertEquals('\strtolower("FOO")', $expressionLanguage->compile('strtolower("FOO")'));
+        $this->assertTrue($expressionLanguage->evaluate('fn_namespaced()'));
+        $this->assertEquals('\Symfony\Component\ExpressionLanguage\Tests\Fixtures\fn_namespaced()', $expressionLanguage->compile('fn_namespaced()'));
+    }
+
+    /**
+     * @dataProvider shortCircuitProviderEvaluate
+     */
+    public function testShortCircuitOperatorsEvaluate($expression, array $values, $expected)
+    {
+        $expressionLanguage = new ExpressionLanguage();
+        $this->assertEquals($expected, $expressionLanguage->evaluate($expression, $values));
+    }
+
+    /**
+     * @dataProvider shortCircuitProviderCompile
+     */
+    public function testShortCircuitOperatorsCompile($expression, array $names, $expected)
+    {
+        $result = null;
+        $expressionLanguage = new ExpressionLanguage();
+        eval(sprintf('$result = %s;', $expressionLanguage->compile($expression, $names)));
+        $this->assertSame($expected, $result);
+    }
+
+    public function testParseThrowsInsteadOfNotice()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Unexpected end of expression around position 6 for expression `node.`.');
+        $expressionLanguage = new ExpressionLanguage();
+        $expressionLanguage->parse('node.', ['node']);
+    }
+
+    public function shortCircuitProviderEvaluate()
+    {
+        $object = $this->getMockBuilder('stdClass')->setMethods(['foo'])->getMock();
+        $object->expects($this->never())->method('foo');
+
+        return [
+            ['false and object.foo()', ['object' => $object], false],
+            ['false && object.foo()', ['object' => $object], false],
+            ['true || object.foo()', ['object' => $object], true],
+            ['true or object.foo()', ['object' => $object], true],
+        ];
+    }
+
+    public function shortCircuitProviderCompile()
+    {
+        return [
+            ['false and foo', ['foo' => 'foo'], false],
+            ['false && foo', ['foo' => 'foo'], false],
+            ['true || foo', ['foo' => 'foo'], true],
+            ['true or foo', ['foo' => 'foo'], true],
+        ];
+    }
+
+    public function testCachingForOverriddenVariableNames()
+    {
+        $expressionLanguage = new ExpressionLanguage();
+        $expression = 'a + b';
+        $expressionLanguage->evaluate($expression, ['a' => 1, 'b' => 1]);
+        $result = $expressionLanguage->compile($expression, ['a', 'B' => 'b']);
+        $this->assertSame('($a + $B)', $result);
+    }
+
+    public function testStrictEquality()
+    {
+        $expressionLanguage = new ExpressionLanguage();
+        $expression = '123 === a';
+        $result = $expressionLanguage->compile($expression, ['a']);
+        $this->assertSame('(123 === $a)', $result);
+    }
+
+    public function testCachingWithDifferentNamesOrder()
+    {
+        $cacheMock = $this->getMockBuilder('Psr\Cache\CacheItemPoolInterface')->getMock();
+        $cacheItemMock = $this->getMockBuilder('Psr\Cache\CacheItemInterface')->getMock();
+        $expressionLanguage = new ExpressionLanguage($cacheMock);
+        $savedParsedExpression = null;
+
+        $cacheMock
+            ->expects($this->exactly(2))
+            ->method('getItem')
+            ->with('a%20%2B%20b%2F%2Fa%7CB%3Ab')
+            ->willReturn($cacheItemMock)
+        ;
+
+        $cacheItemMock
+            ->expects($this->exactly(2))
+            ->method('get')
+            ->willReturnCallback(function () use (&$savedParsedExpression) {
+                return $savedParsedExpression;
+            })
+        ;
+
+        $cacheItemMock
+            ->expects($this->exactly(1))
+            ->method('set')
+            ->with($this->isInstanceOf(ParsedExpression::class))
+            ->willReturnCallback(function ($parsedExpression) use (&$savedParsedExpression) {
+                $savedParsedExpression = $parsedExpression;
+            })
+        ;
+
+        $cacheMock
+            ->expects($this->exactly(1))
+            ->method('save')
+            ->with($cacheItemMock)
+        ;
+
+        $expression = 'a + b';
+        $expressionLanguage->compile($expression, ['a', 'B' => 'b']);
+        $expressionLanguage->compile($expression, ['B' => 'b', 'a']);
+    }
+
+    public function testOperatorCollisions()
+    {
+        $expressionLanguage = new ExpressionLanguage();
+        $expression = 'foo.not in [bar]';
+        $compiled = $expressionLanguage->compile($expression, ['foo', 'bar']);
+        $this->assertSame('in_array($foo->not, [0 => $bar])', $compiled);
+
+        $result = $expressionLanguage->evaluate($expression, ['foo' => (object) ['not' => 'test'], 'bar' => 'test']);
+        $this->assertTrue($result);
+    }
+
+    /**
+     * @dataProvider getRegisterCallbacks
+     */
+    public function testRegisterAfterParse($registerCallback)
+    {
+        $this->expectException('LogicException');
+        $el = new ExpressionLanguage();
+        $el->parse('1 + 1', []);
+        $registerCallback($el);
+    }
+
+    /**
+     * @dataProvider getRegisterCallbacks
+     */
+    public function testRegisterAfterEval($registerCallback)
+    {
+        $this->expectException('LogicException');
+        $el = new ExpressionLanguage();
+        $el->evaluate('1 + 1');
+        $registerCallback($el);
+    }
+
+    public function testCallBadCallable()
+    {
+        $this->expectException('RuntimeException');
+        $this->expectExceptionMessageMatches('/Unable to call method "\w+" of object "\w+"./');
+        $el = new ExpressionLanguage();
+        $el->evaluate('foo.myfunction()', ['foo' => new \stdClass()]);
+    }
+
+    /**
+     * @dataProvider getRegisterCallbacks
+     */
+    public function testRegisterAfterCompile($registerCallback)
+    {
+        $this->expectException('LogicException');
+        $el = new ExpressionLanguage();
+        $el->compile('1 + 1');
+        $registerCallback($el);
+    }
+
+    public function getRegisterCallbacks()
+    {
+        return [
+            [
+                function (ExpressionLanguage $el) {
+                    $el->register('fn', function () {}, function () {});
+                },
+            ],
+            [
+                function (ExpressionLanguage $el) {
+                    $el->addFunction(new ExpressionFunction('fn', function () {}, function () {}));
+                },
+            ],
+            [
+                function (ExpressionLanguage $el) {
+                    $el->registerProvider(new TestProvider());
+                },
+            ],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/ExpressionTest.php

@@ -0,0 +1,28 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Expression;
+
+class ExpressionTest extends TestCase
+{
+    public function testSerialization()
+    {
+        $expression = new Expression('kernel.boot()');
+
+        $serializedExpression = serialize($expression);
+        $unserializedExpression = unserialize($serializedExpression);
+
+        $this->assertEquals($expression, $unserializedExpression);
+    }
+}

vendor/symfony/expression-language/Tests/Fixtures/TestProvider.php

@@ -0,0 +1,41 @@
+<?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\Tests\Fixtures;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+use Symfony\Component\ExpressionLanguage\ExpressionPhpFunction;
+
+class TestProvider implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            new ExpressionFunction('identity', function ($input) {
+                return $input;
+            }, function (array $values, $input) {
+                return $input;
+            }),
+
+            ExpressionFunction::fromPhp('strtoupper'),
+
+            ExpressionFunction::fromPhp('\strtolower'),
+
+            ExpressionFunction::fromPhp('Symfony\Component\ExpressionLanguage\Tests\Fixtures\fn_namespaced', 'fn_namespaced'),
+        ];
+    }
+}
+
+function fn_namespaced()
+{
+    return true;
+}

vendor/symfony/expression-language/Tests/LexerTest.php

@@ -0,0 +1,129 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Lexer;
+use Symfony\Component\ExpressionLanguage\Token;
+use Symfony\Component\ExpressionLanguage\TokenStream;
+
+class LexerTest extends TestCase
+{
+    /**
+     * @var Lexer
+     */
+    private $lexer;
+
+    protected function setUp()
+    {
+        $this->lexer = new Lexer();
+    }
+
+    /**
+     * @dataProvider getTokenizeData
+     */
+    public function testTokenize($tokens, $expression)
+    {
+        $tokens[] = new Token('end of expression', null, \strlen($expression) + 1);
+        $this->assertEquals(new TokenStream($tokens, $expression), $this->lexer->tokenize($expression));
+    }
+
+    public function testTokenizeThrowsErrorWithMessage()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Unexpected character "\'" around position 33 for expression `service(faulty.expression.example\').dummyMethod()`.');
+        $expression = "service(faulty.expression.example').dummyMethod()";
+        $this->lexer->tokenize($expression);
+    }
+
+    public function testTokenizeThrowsErrorOnUnclosedBrace()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Unclosed "(" around position 7 for expression `service(unclosed.expression.dummyMethod()`.');
+        $expression = 'service(unclosed.expression.dummyMethod()';
+        $this->lexer->tokenize($expression);
+    }
+
+    public function getTokenizeData()
+    {
+        return [
+            [
+                [new Token('name', 'a', 3)],
+                '  a  ',
+            ],
+            [
+                [new Token('name', 'a', 1)],
+                'a',
+            ],
+            [
+                [new Token('string', 'foo', 1)],
+                '"foo"',
+            ],
+            [
+                [new Token('number', '3', 1)],
+                '3',
+            ],
+            [
+                [new Token('operator', '+', 1)],
+                '+',
+            ],
+            [
+                [new Token('punctuation', '.', 1)],
+                '.',
+            ],
+            [
+                [
+                    new Token('punctuation', '(', 1),
+                    new Token('number', '3', 2),
+                    new Token('operator', '+', 4),
+                    new Token('number', '5', 6),
+                    new Token('punctuation', ')', 7),
+                    new Token('operator', '~', 9),
+                    new Token('name', 'foo', 11),
+                    new Token('punctuation', '(', 14),
+                    new Token('string', 'bar', 15),
+                    new Token('punctuation', ')', 20),
+                    new Token('punctuation', '.', 21),
+                    new Token('name', 'baz', 22),
+                    new Token('punctuation', '[', 25),
+                    new Token('number', '4', 26),
+                    new Token('punctuation', ']', 27),
+                ],
+                '(3 + 5) ~ foo("bar").baz[4]',
+            ],
+            [
+                [new Token('operator', '..', 1)],
+                '..',
+            ],
+            [
+                [new Token('string', '#foo', 1)],
+                "'#foo'",
+            ],
+            [
+                [new Token('string', '#foo', 1)],
+                '"#foo"',
+            ],
+            [
+                [
+                    new Token('name', 'foo', 1),
+                    new Token('punctuation', '.', 4),
+                    new Token('name', 'not', 5),
+                    new Token('operator', 'in', 9),
+                    new Token('punctuation', '[', 12),
+                    new Token('name', 'bar', 13),
+                    new Token('punctuation', ']', 16),
+                ],
+                'foo.not in [bar]',
+            ],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/AbstractNodeTest.php

@@ -0,0 +1,50 @@
+<?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\Tests\Node;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Compiler;
+
+abstract class AbstractNodeTest extends TestCase
+{
+    /**
+     * @dataProvider getEvaluateData
+     */
+    public function testEvaluate($expected, $node, $variables = [], $functions = [])
+    {
+        $this->assertSame($expected, $node->evaluate($functions, $variables));
+    }
+
+    abstract public function getEvaluateData();
+
+    /**
+     * @dataProvider getCompileData
+     */
+    public function testCompile($expected, $node, $functions = [])
+    {
+        $compiler = new Compiler($functions);
+        $node->compile($compiler);
+        $this->assertSame($expected, $compiler->getSource());
+    }
+
+    abstract public function getCompileData();
+
+    /**
+     * @dataProvider getDumpData
+     */
+    public function testDump($expected, $node)
+    {
+        $this->assertSame($expected, $node->dump());
+    }
+
+    abstract public function getDumpData();
+}

vendor/symfony/expression-language/Tests/Node/ArgumentsNodeTest.php

@@ -0,0 +1,36 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ArgumentsNode;
+
+class ArgumentsNodeTest extends ArrayNodeTest
+{
+    public function getCompileData()
+    {
+        return [
+            ['"a", "b"', $this->getArrayNode()],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['"a", "b"', $this->getArrayNode()],
+        ];
+    }
+
+    protected function createArrayNode()
+    {
+        return new ArgumentsNode();
+    }
+}

vendor/symfony/expression-language/Tests/Node/ArrayNodeTest.php

@@ -0,0 +1,73 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ArrayNode;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+
+class ArrayNodeTest extends AbstractNodeTest
+{
+    public function testSerialization()
+    {
+        $node = $this->createArrayNode();
+        $node->addElement(new ConstantNode('foo'));
+
+        $serializedNode = serialize($node);
+        $unserializedNode = unserialize($serializedNode);
+
+        $this->assertEquals($node, $unserializedNode);
+        $this->assertNotEquals($this->createArrayNode(), $unserializedNode);
+    }
+
+    public function getEvaluateData()
+    {
+        return [
+            [['b' => 'a', 'b'], $this->getArrayNode()],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['["b" => "a", 0 => "b"]', $this->getArrayNode()],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        yield ['{"b": "a", 0: "b"}', $this->getArrayNode()];
+
+        $array = $this->createArrayNode();
+        $array->addElement(new ConstantNode('c'), new ConstantNode('a"b'));
+        $array->addElement(new ConstantNode('d'), new ConstantNode('a\b'));
+        yield ['{"a\\"b": "c", "a\\\\b": "d"}', $array];
+
+        $array = $this->createArrayNode();
+        $array->addElement(new ConstantNode('c'));
+        $array->addElement(new ConstantNode('d'));
+        yield ['["c", "d"]', $array];
+    }
+
+    protected function getArrayNode()
+    {
+        $array = $this->createArrayNode();
+        $array->addElement(new ConstantNode('a'), new ConstantNode('b'));
+        $array->addElement(new ConstantNode('b'));
+
+        return $array;
+    }
+
+    protected function createArrayNode()
+    {
+        return new ArrayNode();
+    }
+}

vendor/symfony/expression-language/Tests/Node/BinaryNodeTest.php

@@ -0,0 +1,166 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ArrayNode;
+use Symfony\Component\ExpressionLanguage\Node\BinaryNode;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+
+class BinaryNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        $array = new ArrayNode();
+        $array->addElement(new ConstantNode('a'));
+        $array->addElement(new ConstantNode('b'));
+
+        return [
+            [true, new BinaryNode('or', new ConstantNode(true), new ConstantNode(false))],
+            [true, new BinaryNode('||', new ConstantNode(true), new ConstantNode(false))],
+            [false, new BinaryNode('and', new ConstantNode(true), new ConstantNode(false))],
+            [false, new BinaryNode('&&', new ConstantNode(true), new ConstantNode(false))],
+
+            [0, new BinaryNode('&', new ConstantNode(2), new ConstantNode(4))],
+            [6, new BinaryNode('|', new ConstantNode(2), new ConstantNode(4))],
+            [6, new BinaryNode('^', new ConstantNode(2), new ConstantNode(4))],
+
+            [true, new BinaryNode('<', new ConstantNode(1), new ConstantNode(2))],
+            [true, new BinaryNode('<=', new ConstantNode(1), new ConstantNode(2))],
+            [true, new BinaryNode('<=', new ConstantNode(1), new ConstantNode(1))],
+
+            [false, new BinaryNode('>', new ConstantNode(1), new ConstantNode(2))],
+            [false, new BinaryNode('>=', new ConstantNode(1), new ConstantNode(2))],
+            [true, new BinaryNode('>=', new ConstantNode(1), new ConstantNode(1))],
+
+            [true, new BinaryNode('===', new ConstantNode(true), new ConstantNode(true))],
+            [false, new BinaryNode('!==', new ConstantNode(true), new ConstantNode(true))],
+
+            [false, new BinaryNode('==', new ConstantNode(2), new ConstantNode(1))],
+            [true, new BinaryNode('!=', new ConstantNode(2), new ConstantNode(1))],
+
+            [-1, new BinaryNode('-', new ConstantNode(1), new ConstantNode(2))],
+            [3, new BinaryNode('+', new ConstantNode(1), new ConstantNode(2))],
+            [4, new BinaryNode('*', new ConstantNode(2), new ConstantNode(2))],
+            [1, new BinaryNode('/', new ConstantNode(2), new ConstantNode(2))],
+            [1, new BinaryNode('%', new ConstantNode(5), new ConstantNode(2))],
+            [25, new BinaryNode('**', new ConstantNode(5), new ConstantNode(2))],
+            ['ab', new BinaryNode('~', new ConstantNode('a'), new ConstantNode('b'))],
+
+            [true, new BinaryNode('in', new ConstantNode('a'), $array)],
+            [false, new BinaryNode('in', new ConstantNode('c'), $array)],
+            [true, new BinaryNode('not in', new ConstantNode('c'), $array)],
+            [false, new BinaryNode('not in', new ConstantNode('a'), $array)],
+
+            [[1, 2, 3], new BinaryNode('..', new ConstantNode(1), new ConstantNode(3))],
+
+            [1, new BinaryNode('matches', new ConstantNode('abc'), new ConstantNode('/^[a-z]+$/'))],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        $array = new ArrayNode();
+        $array->addElement(new ConstantNode('a'));
+        $array->addElement(new ConstantNode('b'));
+
+        return [
+            ['(true || false)', new BinaryNode('or', new ConstantNode(true), new ConstantNode(false))],
+            ['(true || false)', new BinaryNode('||', new ConstantNode(true), new ConstantNode(false))],
+            ['(true && false)', new BinaryNode('and', new ConstantNode(true), new ConstantNode(false))],
+            ['(true && false)', new BinaryNode('&&', new ConstantNode(true), new ConstantNode(false))],
+
+            ['(2 & 4)', new BinaryNode('&', new ConstantNode(2), new ConstantNode(4))],
+            ['(2 | 4)', new BinaryNode('|', new ConstantNode(2), new ConstantNode(4))],
+            ['(2 ^ 4)', new BinaryNode('^', new ConstantNode(2), new ConstantNode(4))],
+
+            ['(1 < 2)', new BinaryNode('<', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 <= 2)', new BinaryNode('<=', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 <= 1)', new BinaryNode('<=', new ConstantNode(1), new ConstantNode(1))],
+
+            ['(1 > 2)', new BinaryNode('>', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 >= 2)', new BinaryNode('>=', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 >= 1)', new BinaryNode('>=', new ConstantNode(1), new ConstantNode(1))],
+
+            ['(true === true)', new BinaryNode('===', new ConstantNode(true), new ConstantNode(true))],
+            ['(true !== true)', new BinaryNode('!==', new ConstantNode(true), new ConstantNode(true))],
+
+            ['(2 == 1)', new BinaryNode('==', new ConstantNode(2), new ConstantNode(1))],
+            ['(2 != 1)', new BinaryNode('!=', new ConstantNode(2), new ConstantNode(1))],
+
+            ['(1 - 2)', new BinaryNode('-', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 + 2)', new BinaryNode('+', new ConstantNode(1), new ConstantNode(2))],
+            ['(2 * 2)', new BinaryNode('*', new ConstantNode(2), new ConstantNode(2))],
+            ['(2 / 2)', new BinaryNode('/', new ConstantNode(2), new ConstantNode(2))],
+            ['(5 % 2)', new BinaryNode('%', new ConstantNode(5), new ConstantNode(2))],
+            ['pow(5, 2)', new BinaryNode('**', new ConstantNode(5), new ConstantNode(2))],
+            ['("a" . "b")', new BinaryNode('~', new ConstantNode('a'), new ConstantNode('b'))],
+
+            ['in_array("a", [0 => "a", 1 => "b"])', new BinaryNode('in', new ConstantNode('a'), $array)],
+            ['in_array("c", [0 => "a", 1 => "b"])', new BinaryNode('in', new ConstantNode('c'), $array)],
+            ['!in_array("c", [0 => "a", 1 => "b"])', new BinaryNode('not in', new ConstantNode('c'), $array)],
+            ['!in_array("a", [0 => "a", 1 => "b"])', new BinaryNode('not in', new ConstantNode('a'), $array)],
+
+            ['range(1, 3)', new BinaryNode('..', new ConstantNode(1), new ConstantNode(3))],
+
+            ['preg_match("/^[a-z]+/i\$/", "abc")', new BinaryNode('matches', new ConstantNode('abc'), new ConstantNode('/^[a-z]+/i$/'))],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        $array = new ArrayNode();
+        $array->addElement(new ConstantNode('a'));
+        $array->addElement(new ConstantNode('b'));
+
+        return [
+            ['(true or false)', new BinaryNode('or', new ConstantNode(true), new ConstantNode(false))],
+            ['(true || false)', new BinaryNode('||', new ConstantNode(true), new ConstantNode(false))],
+            ['(true and false)', new BinaryNode('and', new ConstantNode(true), new ConstantNode(false))],
+            ['(true && false)', new BinaryNode('&&', new ConstantNode(true), new ConstantNode(false))],
+
+            ['(2 & 4)', new BinaryNode('&', new ConstantNode(2), new ConstantNode(4))],
+            ['(2 | 4)', new BinaryNode('|', new ConstantNode(2), new ConstantNode(4))],
+            ['(2 ^ 4)', new BinaryNode('^', new ConstantNode(2), new ConstantNode(4))],
+
+            ['(1 < 2)', new BinaryNode('<', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 <= 2)', new BinaryNode('<=', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 <= 1)', new BinaryNode('<=', new ConstantNode(1), new ConstantNode(1))],
+
+            ['(1 > 2)', new BinaryNode('>', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 >= 2)', new BinaryNode('>=', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 >= 1)', new BinaryNode('>=', new ConstantNode(1), new ConstantNode(1))],
+
+            ['(true === true)', new BinaryNode('===', new ConstantNode(true), new ConstantNode(true))],
+            ['(true !== true)', new BinaryNode('!==', new ConstantNode(true), new ConstantNode(true))],
+
+            ['(2 == 1)', new BinaryNode('==', new ConstantNode(2), new ConstantNode(1))],
+            ['(2 != 1)', new BinaryNode('!=', new ConstantNode(2), new ConstantNode(1))],
+
+            ['(1 - 2)', new BinaryNode('-', new ConstantNode(1), new ConstantNode(2))],
+            ['(1 + 2)', new BinaryNode('+', new ConstantNode(1), new ConstantNode(2))],
+            ['(2 * 2)', new BinaryNode('*', new ConstantNode(2), new ConstantNode(2))],
+            ['(2 / 2)', new BinaryNode('/', new ConstantNode(2), new ConstantNode(2))],
+            ['(5 % 2)', new BinaryNode('%', new ConstantNode(5), new ConstantNode(2))],
+            ['(5 ** 2)', new BinaryNode('**', new ConstantNode(5), new ConstantNode(2))],
+            ['("a" ~ "b")', new BinaryNode('~', new ConstantNode('a'), new ConstantNode('b'))],
+
+            ['("a" in ["a", "b"])', new BinaryNode('in', new ConstantNode('a'), $array)],
+            ['("c" in ["a", "b"])', new BinaryNode('in', new ConstantNode('c'), $array)],
+            ['("c" not in ["a", "b"])', new BinaryNode('not in', new ConstantNode('c'), $array)],
+            ['("a" not in ["a", "b"])', new BinaryNode('not in', new ConstantNode('a'), $array)],
+
+            ['(1 .. 3)', new BinaryNode('..', new ConstantNode(1), new ConstantNode(3))],
+
+            ['("abc" matches "/^[a-z]+/i$/")', new BinaryNode('matches', new ConstantNode('abc'), new ConstantNode('/^[a-z]+/i$/'))],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/ConditionalNodeTest.php

@@ -0,0 +1,42 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ConditionalNode;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+
+class ConditionalNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            [1, new ConditionalNode(new ConstantNode(true), new ConstantNode(1), new ConstantNode(2))],
+            [2, new ConditionalNode(new ConstantNode(false), new ConstantNode(1), new ConstantNode(2))],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['((true) ? (1) : (2))', new ConditionalNode(new ConstantNode(true), new ConstantNode(1), new ConstantNode(2))],
+            ['((false) ? (1) : (2))', new ConditionalNode(new ConstantNode(false), new ConstantNode(1), new ConstantNode(2))],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['(true ? 1 : 2)', new ConditionalNode(new ConstantNode(true), new ConstantNode(1), new ConstantNode(2))],
+            ['(false ? 1 : 2)', new ConditionalNode(new ConstantNode(false), new ConstantNode(1), new ConstantNode(2))],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/ConstantNodeTest.php

@@ -0,0 +1,60 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+
+class ConstantNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            [false, new ConstantNode(false)],
+            [true, new ConstantNode(true)],
+            [null, new ConstantNode(null)],
+            [3, new ConstantNode(3)],
+            [3.3, new ConstantNode(3.3)],
+            ['foo', new ConstantNode('foo')],
+            [[1, 'b' => 'a'], new ConstantNode([1, 'b' => 'a'])],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['false', new ConstantNode(false)],
+            ['true', new ConstantNode(true)],
+            ['null', new ConstantNode(null)],
+            ['3', new ConstantNode(3)],
+            ['3.3', new ConstantNode(3.3)],
+            ['"foo"', new ConstantNode('foo')],
+            ['[0 => 1, "b" => "a"]', new ConstantNode([1, 'b' => 'a'])],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['false', new ConstantNode(false)],
+            ['true', new ConstantNode(true)],
+            ['null', new ConstantNode(null)],
+            ['3', new ConstantNode(3)],
+            ['3.3', new ConstantNode(3.3)],
+            ['"foo"', new ConstantNode('foo')],
+            ['foo', new ConstantNode('foo', true)],
+            ['{0: 1, "b": "a", 1: true}', new ConstantNode([1, 'b' => 'a', true])],
+            ['{"a\\"b": "c", "a\\\\b": "d"}', new ConstantNode(['a"b' => 'c', 'a\\b' => 'd'])],
+            ['["c", "d"]', new ConstantNode(['c', 'd'])],
+            ['{"a": ["b"]}', new ConstantNode(['a' => ['b']])],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/FunctionNodeTest.php

@@ -0,0 +1,52 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+use Symfony\Component\ExpressionLanguage\Node\FunctionNode;
+use Symfony\Component\ExpressionLanguage\Node\Node;
+
+class FunctionNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            ['bar', new FunctionNode('foo', new Node([new ConstantNode('bar')])), [], ['foo' => $this->getCallables()]],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['foo("bar")', new FunctionNode('foo', new Node([new ConstantNode('bar')])), ['foo' => $this->getCallables()]],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['foo("bar")', new FunctionNode('foo', new Node([new ConstantNode('bar')])), ['foo' => $this->getCallables()]],
+        ];
+    }
+
+    protected function getCallables()
+    {
+        return [
+            'compiler' => function ($arg) {
+                return sprintf('foo(%s)', $arg);
+            },
+            'evaluator' => function ($variables, $arg) {
+                return $arg;
+            },
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/GetAttrNodeTest.php

@@ -0,0 +1,78 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ArrayNode;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+use Symfony\Component\ExpressionLanguage\Node\GetAttrNode;
+use Symfony\Component\ExpressionLanguage\Node\NameNode;
+
+class GetAttrNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            ['b', new GetAttrNode(new NameNode('foo'), new ConstantNode(0), $this->getArrayNode(), GetAttrNode::ARRAY_CALL), ['foo' => ['b' => 'a', 'b']]],
+            ['a', new GetAttrNode(new NameNode('foo'), new ConstantNode('b'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL), ['foo' => ['b' => 'a', 'b']]],
+
+            ['bar', new GetAttrNode(new NameNode('foo'), new ConstantNode('foo'), $this->getArrayNode(), GetAttrNode::PROPERTY_CALL), ['foo' => new Obj()]],
+
+            ['baz', new GetAttrNode(new NameNode('foo'), new ConstantNode('foo'), $this->getArrayNode(), GetAttrNode::METHOD_CALL), ['foo' => new Obj()]],
+            ['a', new GetAttrNode(new NameNode('foo'), new NameNode('index'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL), ['foo' => ['b' => 'a', 'b'], 'index' => 'b']],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['$foo[0]', new GetAttrNode(new NameNode('foo'), new ConstantNode(0), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+            ['$foo["b"]', new GetAttrNode(new NameNode('foo'), new ConstantNode('b'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+
+            ['$foo->foo', new GetAttrNode(new NameNode('foo'), new ConstantNode('foo'), $this->getArrayNode(), GetAttrNode::PROPERTY_CALL), ['foo' => new Obj()]],
+
+            ['$foo->foo(["b" => "a", 0 => "b"])', new GetAttrNode(new NameNode('foo'), new ConstantNode('foo'), $this->getArrayNode(), GetAttrNode::METHOD_CALL), ['foo' => new Obj()]],
+            ['$foo[$index]', new GetAttrNode(new NameNode('foo'), new NameNode('index'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['foo[0]', new GetAttrNode(new NameNode('foo'), new ConstantNode(0), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+            ['foo["b"]', new GetAttrNode(new NameNode('foo'), new ConstantNode('b'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+
+            ['foo.foo', new GetAttrNode(new NameNode('foo'), new NameNode('foo'), $this->getArrayNode(), GetAttrNode::PROPERTY_CALL), ['foo' => new Obj()]],
+
+            ['foo.foo({"b": "a", 0: "b"})', new GetAttrNode(new NameNode('foo'), new NameNode('foo'), $this->getArrayNode(), GetAttrNode::METHOD_CALL), ['foo' => new Obj()]],
+            ['foo[index]', new GetAttrNode(new NameNode('foo'), new NameNode('index'), $this->getArrayNode(), GetAttrNode::ARRAY_CALL)],
+        ];
+    }
+
+    protected function getArrayNode()
+    {
+        $array = new ArrayNode();
+        $array->addElement(new ConstantNode('a'), new ConstantNode('b'));
+        $array->addElement(new ConstantNode('b'));
+
+        return $array;
+    }
+}
+
+class Obj
+{
+    public $foo = 'bar';
+
+    public function foo()
+    {
+        return 'baz';
+    }
+}

vendor/symfony/expression-language/Tests/Node/NameNodeTest.php

@@ -0,0 +1,38 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\NameNode;
+
+class NameNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            ['bar', new NameNode('foo'), ['foo' => 'bar']],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['$foo', new NameNode('foo')],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['foo', new NameNode('foo')],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/Node/NodeTest.php

@@ -0,0 +1,41 @@
+<?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\Tests\Node;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+use Symfony\Component\ExpressionLanguage\Node\Node;
+
+class NodeTest extends TestCase
+{
+    public function testToString()
+    {
+        $node = new Node([new ConstantNode('foo')]);
+
+        $this->assertEquals(<<<'EOF'
+Node(
+    ConstantNode(value: 'foo')
+)
+EOF
+        , (string) $node);
+    }
+
+    public function testSerialization()
+    {
+        $node = new Node(['foo' => 'bar'], ['bar' => 'foo']);
+
+        $serializedNode = serialize($node);
+        $unserializedNode = unserialize($serializedNode);
+
+        $this->assertEquals($node, $unserializedNode);
+    }
+}

vendor/symfony/expression-language/Tests/Node/UnaryNodeTest.php

@@ -0,0 +1,48 @@
+<?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\Tests\Node;
+
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+use Symfony\Component\ExpressionLanguage\Node\UnaryNode;
+
+class UnaryNodeTest extends AbstractNodeTest
+{
+    public function getEvaluateData()
+    {
+        return [
+            [-1, new UnaryNode('-', new ConstantNode(1))],
+            [3, new UnaryNode('+', new ConstantNode(3))],
+            [false, new UnaryNode('!', new ConstantNode(true))],
+            [false, new UnaryNode('not', new ConstantNode(true))],
+        ];
+    }
+
+    public function getCompileData()
+    {
+        return [
+            ['(-1)', new UnaryNode('-', new ConstantNode(1))],
+            ['(+3)', new UnaryNode('+', new ConstantNode(3))],
+            ['(!true)', new UnaryNode('!', new ConstantNode(true))],
+            ['(!true)', new UnaryNode('not', new ConstantNode(true))],
+        ];
+    }
+
+    public function getDumpData()
+    {
+        return [
+            ['(- 1)', new UnaryNode('-', new ConstantNode(1))],
+            ['(+ 3)', new UnaryNode('+', new ConstantNode(3))],
+            ['(! true)', new UnaryNode('!', new ConstantNode(true))],
+            ['(not true)', new UnaryNode('not', new ConstantNode(true))],
+        ];
+    }
+}

vendor/symfony/expression-language/Tests/ParsedExpressionTest.php

@@ -0,0 +1,29 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Node\ConstantNode;
+use Symfony\Component\ExpressionLanguage\ParsedExpression;
+
+class ParsedExpressionTest extends TestCase
+{
+    public function testSerialization()
+    {
+        $expression = new ParsedExpression('25', new ConstantNode('25'));
+
+        $serializedExpression = serialize($expression);
+        $unserializedExpression = unserialize($serializedExpression);
+
+        $this->assertEquals($expression, $unserializedExpression);
+    }
+}

vendor/symfony/expression-language/Tests/ParserCache/ParserCacheAdapterTest.php

@@ -0,0 +1,140 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Node\Node;
+use Symfony\Component\ExpressionLanguage\ParsedExpression;
+use Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheAdapter;
+
+/**
+ * @group legacy
+ */
+class ParserCacheAdapterTest extends TestCase
+{
+    public function testGetItem()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+
+        $key = 'key';
+        $value = 'value';
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+
+        $poolMock
+            ->expects($this->once())
+            ->method('fetch')
+            ->with($key)
+            ->willReturn($value)
+        ;
+
+        $cacheItem = $parserCacheAdapter->getItem($key);
+
+        $this->assertEquals($value, $cacheItem->get());
+        $this->assertTrue($cacheItem->isHit());
+    }
+
+    public function testSave()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $cacheItemMock = $this->getMockBuilder('Psr\Cache\CacheItemInterface')->getMock();
+        $key = 'key';
+        $value = new ParsedExpression('1 + 1', new Node([], []));
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+
+        $poolMock
+            ->expects($this->once())
+            ->method('save')
+            ->with($key, $value)
+        ;
+
+        $cacheItemMock
+            ->expects($this->once())
+            ->method('getKey')
+            ->willReturn($key)
+        ;
+
+        $cacheItemMock
+            ->expects($this->once())
+            ->method('get')
+            ->willReturn($value)
+        ;
+
+        $parserCacheAdapter->save($cacheItemMock);
+    }
+
+    public function testGetItems()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->getItems();
+    }
+
+    public function testHasItem()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $key = 'key';
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->hasItem($key);
+    }
+
+    public function testClear()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->clear();
+    }
+
+    public function testDeleteItem()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $key = 'key';
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->deleteItem($key);
+    }
+
+    public function testDeleteItems()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $keys = ['key'];
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->deleteItems($keys);
+    }
+
+    public function testSaveDeferred()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $cacheItemMock = $this->getMockBuilder('Psr\Cache\CacheItemInterface')->getMock();
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->saveDeferred($cacheItemMock);
+    }
+
+    public function testCommit()
+    {
+        $poolMock = $this->getMockBuilder('Symfony\Component\ExpressionLanguage\ParserCache\ParserCacheInterface')->getMock();
+        $parserCacheAdapter = new ParserCacheAdapter($poolMock);
+        $this->expectException(\BadMethodCallException::class);
+
+        $parserCacheAdapter->commit();
+    }
+}

vendor/symfony/expression-language/Tests/ParserTest.php

@@ -0,0 +1,237 @@
+<?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\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\ExpressionLanguage\Lexer;
+use Symfony\Component\ExpressionLanguage\Node;
+use Symfony\Component\ExpressionLanguage\Parser;
+
+class ParserTest extends TestCase
+{
+    public function testParseWithInvalidName()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Variable "foo" is not valid around position 1 for expression `foo`.');
+        $lexer = new Lexer();
+        $parser = new Parser([]);
+        $parser->parse($lexer->tokenize('foo'));
+    }
+
+    public function testParseWithZeroInNames()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Variable "foo" is not valid around position 1 for expression `foo`.');
+        $lexer = new Lexer();
+        $parser = new Parser([]);
+        $parser->parse($lexer->tokenize('foo'), [0]);
+    }
+
+    /**
+     * @dataProvider getParseData
+     */
+    public function testParse($node, $expression, $names = [])
+    {
+        $lexer = new Lexer();
+        $parser = new Parser([]);
+        $this->assertEquals($node, $parser->parse($lexer->tokenize($expression), $names));
+    }
+
+    public function getParseData()
+    {
+        $arguments = new Node\ArgumentsNode();
+        $arguments->addElement(new Node\ConstantNode('arg1'));
+        $arguments->addElement(new Node\ConstantNode(2));
+        $arguments->addElement(new Node\ConstantNode(true));
+
+        $arrayNode = new Node\ArrayNode();
+        $arrayNode->addElement(new Node\NameNode('bar'));
+
+        return [
+            [
+                new Node\NameNode('a'),
+                'a',
+                ['a'],
+            ],
+            [
+                new Node\ConstantNode('a'),
+                '"a"',
+            ],
+            [
+                new Node\ConstantNode(3),
+                '3',
+            ],
+            [
+                new Node\ConstantNode(false),
+                'false',
+            ],
+            [
+                new Node\ConstantNode(true),
+                'true',
+            ],
+            [
+                new Node\ConstantNode(null),
+                'null',
+            ],
+            [
+                new Node\UnaryNode('-', new Node\ConstantNode(3)),
+                '-3',
+            ],
+            [
+                new Node\BinaryNode('-', new Node\ConstantNode(3), new Node\ConstantNode(3)),
+                '3 - 3',
+            ],
+            [
+                new Node\BinaryNode('*',
+                    new Node\BinaryNode('-', new Node\ConstantNode(3), new Node\ConstantNode(3)),
+                    new Node\ConstantNode(2)
+                ),
+                '(3 - 3) * 2',
+            ],
+            [
+                new Node\GetAttrNode(new Node\NameNode('foo'), new Node\ConstantNode('bar', true), new Node\ArgumentsNode(), Node\GetAttrNode::PROPERTY_CALL),
+                'foo.bar',
+                ['foo'],
+            ],
+            [
+                new Node\GetAttrNode(new Node\NameNode('foo'), new Node\ConstantNode('bar', true), new Node\ArgumentsNode(), Node\GetAttrNode::METHOD_CALL),
+                'foo.bar()',
+                ['foo'],
+            ],
+            [
+                new Node\GetAttrNode(new Node\NameNode('foo'), new Node\ConstantNode('not', true), new Node\ArgumentsNode(), Node\GetAttrNode::METHOD_CALL),
+                'foo.not()',
+                ['foo'],
+            ],
+            [
+                new Node\GetAttrNode(
+                    new Node\NameNode('foo'),
+                    new Node\ConstantNode('bar', true),
+                    $arguments,
+                    Node\GetAttrNode::METHOD_CALL
+                ),
+                'foo.bar("arg1", 2, true)',
+                ['foo'],
+            ],
+            [
+                new Node\GetAttrNode(new Node\NameNode('foo'), new Node\ConstantNode(3), new Node\ArgumentsNode(), Node\GetAttrNode::ARRAY_CALL),
+                'foo[3]',
+                ['foo'],
+            ],
+            [
+                new Node\ConditionalNode(new Node\ConstantNode(true), new Node\ConstantNode(true), new Node\ConstantNode(false)),
+                'true ? true : false',
+            ],
+            [
+                new Node\BinaryNode('matches', new Node\ConstantNode('foo'), new Node\ConstantNode('/foo/')),
+                '"foo" matches "/foo/"',
+            ],
+
+            // chained calls
+            [
+                $this->createGetAttrNode(
+                    $this->createGetAttrNode(
+                        $this->createGetAttrNode(
+                            $this->createGetAttrNode(new Node\NameNode('foo'), 'bar', Node\GetAttrNode::METHOD_CALL),
+                            'foo', Node\GetAttrNode::METHOD_CALL),
+                        'baz', Node\GetAttrNode::PROPERTY_CALL),
+                    '3', Node\GetAttrNode::ARRAY_CALL),
+                'foo.bar().foo().baz[3]',
+                ['foo'],
+            ],
+
+            [
+                new Node\NameNode('foo'),
+                'bar',
+                ['foo' => 'bar'],
+            ],
+
+            // Operators collisions
+            [
+                new Node\BinaryNode(
+                    'in',
+                    new Node\GetAttrNode(
+                        new Node\NameNode('foo'),
+                        new Node\ConstantNode('not', true),
+                        new Node\ArgumentsNode(),
+                        Node\GetAttrNode::PROPERTY_CALL
+                    ),
+                    $arrayNode
+                ),
+                'foo.not in [bar]',
+                ['foo', 'bar'],
+            ],
+            [
+                new Node\BinaryNode(
+                    'or',
+                    new Node\UnaryNode('not', new Node\NameNode('foo')),
+                    new Node\GetAttrNode(
+                        new Node\NameNode('foo'),
+                        new Node\ConstantNode('not', true),
+                        new Node\ArgumentsNode(),
+                        Node\GetAttrNode::PROPERTY_CALL
+                    )
+                ),
+                'not foo or foo.not',
+                ['foo'],
+            ],
+        ];
+    }
+
+    private function createGetAttrNode($node, $item, $type)
+    {
+        return new Node\GetAttrNode($node, new Node\ConstantNode($item, Node\GetAttrNode::ARRAY_CALL !== $type), new Node\ArgumentsNode(), $type);
+    }
+
+    /**
+     * @dataProvider getInvalidPostfixData
+     */
+    public function testParseWithInvalidPostfixData($expr, $names = [])
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $lexer = new Lexer();
+        $parser = new Parser([]);
+        $parser->parse($lexer->tokenize($expr), $names);
+    }
+
+    public function getInvalidPostfixData()
+    {
+        return [
+            [
+                'foo."#"',
+                ['foo'],
+            ],
+            [
+                'foo."bar"',
+                ['foo'],
+            ],
+            [
+                'foo.**',
+                ['foo'],
+            ],
+            [
+                'foo.123',
+                ['foo'],
+            ],
+        ];
+    }
+
+    public function testNameProposal()
+    {
+        $this->expectException('Symfony\Component\ExpressionLanguage\SyntaxError');
+        $this->expectExceptionMessage('Did you mean "baz"?');
+        $lexer = new Lexer();
+        $parser = new Parser([]);
+
+        $parser->parse($lexer->tokenize('foo > bar'), ['foo', 'baz']);
+    }
+}

vendor/symfony/expression-language/Token.php

@@ -0,0 +1,66 @@
+<?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;
+
+/**
+ * Represents a Token.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class Token
+{
+    public $value;
+    public $type;
+    public $cursor;
+
+    const EOF_TYPE = 'end of expression';
+    const NAME_TYPE = 'name';
+    const NUMBER_TYPE = 'number';
+    const STRING_TYPE = 'string';
+    const OPERATOR_TYPE = 'operator';
+    const PUNCTUATION_TYPE = 'punctuation';
+
+    /**
+     * @param string                $type   The type of the token (self::*_TYPE)
+     * @param string|int|float|null $value  The token value
+     * @param int                   $cursor The cursor position in the source
+     */
+    public function __construct($type, $value, $cursor)
+    {
+        $this->type = $type;
+        $this->value = $value;
+        $this->cursor = $cursor;
+    }
+
+    /**
+     * Returns a string representation of the token.
+     *
+     * @return string A string representation of the token
+     */
+    public function __toString()
+    {
+        return sprintf('%3d %-11s %s', $this->cursor, strtoupper($this->type), $this->value);
+    }
+
+    /**
+     * Tests the current token for a type and/or a value.
+     *
+     * @param string      $type  The type to test
+     * @param string|null $value The token value
+     *
+     * @return bool
+     */
+    public function test($type, $value = null)
+    {
+        return $this->type === $type && (null === $value || $this->value == $value);
+    }
+}

vendor/symfony/expression-language/TokenStream.php

@@ -0,0 +1,97 @@
+<?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;
+
+/**
+ * Represents a token stream.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class TokenStream
+{
+    public $current;
+
+    private $tokens;
+    private $position = 0;
+    private $expression;
+
+    /**
+     * @param array  $tokens     An array of tokens
+     * @param string $expression
+     */
+    public function __construct(array $tokens, $expression = '')
+    {
+        $this->tokens = $tokens;
+        $this->current = $tokens[0];
+        $this->expression = $expression;
+    }
+
+    /**
+     * Returns a string representation of the token stream.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        return implode("\n", $this->tokens);
+    }
+
+    /**
+     * Sets the pointer to the next token and returns the old one.
+     */
+    public function next()
+    {
+        ++$this->position;
+
+        if (!isset($this->tokens[$this->position])) {
+            throw new SyntaxError('Unexpected end of expression.', $this->current->cursor, $this->expression);
+        }
+
+        $this->current = $this->tokens[$this->position];
+    }
+
+    /**
+     * Tests a token.
+     *
+     * @param array|int   $type    The type to test
+     * @param string|null $value   The token value
+     * @param string|null $message The syntax error message
+     */
+    public function expect($type, $value = null, $message = null)
+    {
+        $token = $this->current;
+        if (!$token->test($type, $value)) {
+            throw new SyntaxError(sprintf('%sUnexpected token "%s" of value "%s" ("%s" expected%s).', $message ? $message.'. ' : '', $token->type, $token->value, $type, $value ? sprintf(' with value "%s"', $value) : ''), $token->cursor, $this->expression);
+        }
+        $this->next();
+    }
+
+    /**
+     * Checks if end of stream was reached.
+     *
+     * @return bool
+     */
+    public function isEOF()
+    {
+        return Token::EOF_TYPE === $this->current->type;
+    }
+
+    /**
+     * @internal
+     *
+     * @return string
+     */
+    public function getExpression()
+    {
+        return $this->expression;
+    }
+}

vendor/symfony/expression-language/composer.json

@@ -0,0 +1,30 @@
+{
+    "name": "symfony/expression-language",
+    "type": "library",
+    "description": "Symfony ExpressionLanguage Component",
+    "keywords": [],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": "^5.5.9|>=7.0.8",
+        "symfony/cache": "~3.1|~4.0",
+        "symfony/polyfill-php70": "~1.6"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\ExpressionLanguage\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}

vendor/symfony/expression-language/phpunit.xml.dist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/5.2/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="vendor/autoload.php"
+         failOnRisky="true"
+         failOnWarning="true"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Symfony ExpressionLanguage Component Test Suite">
+            <directory>./Tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>./</directory>
+            <exclude>
+                <directory>./Tests</directory>
+                <directory>./vendor</directory>
+            </exclude>
+        </whitelist>
+    </filter>
+</phpunit>