Nov 10, 2016 · Oct 17, 2016 · Nov 8, 2016 · Nov 8, 2016
diff --git a/components/expression_language/caching.rst b/components/expression_language/caching.rst

 To save time, the ``ExpressionLanguage`` caches the ``ParsedExpression`` so
 it can skip the tokenize and parse steps with duplicate expressions.
 The caching is done by a
 :class:`Symfony\\Component\\ExpressionLanguage\\ParserCache\\ParserCacheInterface`
 instance (by default, it uses an
 :class:`Symfony\\Component\\ExpressionLanguage\\ParserCache\\ArrayParserCache`).
 You can customize this by creating a custom ``ParserCache`` and injecting this
 The caching is done by a `CacheItemPoolInterface`_ instance (by default, it uses an
 :class:`Symfony\\Component\\Cache\\Adapter\\ArrayAdapter`).
 You can customize this by creating a custom ``Cache`` and injecting this
 in the object using the constructor::

    use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
    useAcme\ExpressionLanguage\ParserCache\MyDatabaseParserCache;
    useSymfony\Component\Cache\Adapter\RedisAdapter;

    $cache = newMyDatabaseParserCache(...);
    $cache = newRedisAdapter(...);
    $language = new ExpressionLanguage($cache);

 ..note::
 ..seealso::

    The `DoctrineBridge`_ provides a Parser Cache implementation using the
    `doctrine cache library`_, which gives you caching for all sorts of cache
    strategies, like Apc, Filesystem and Memcached.
    See the :doc:`/components/cache` documentation for more information about
    available cache adapters.

 Using Parsed and Serialized Expressions
 ---------------------------------------

    var_dump($language->evaluate($expression)); // prints 5

 .. _DoctrineBridge: https://github.com/symfony/doctrine-bridge
 .. _`doctrine cache library`: http://docs.doctrine-project.org/projects/doctrine-common/en/latest/reference/caching.html
 .. _`CacheItemPoolInterface`: https://github.com/php-fig/cache/blob/master/src/CacheItemPoolInterface.php
Original file line number	Diff line number	Diff line change
Expand Up		@@ -26,24 +26,21 @@ expression saved in the ``ParsedExpression``) and evaluate them on the fly.

		To save time, the ``ExpressionLanguage`` caches the ``ParsedExpression`` so
		it can skip the tokenize and parse steps with duplicate expressions.
		The caching is done by a
		:class:`Symfony\\Component\\ExpressionLanguage\\ParserCache\\ParserCacheInterface`
		instance (by default, it uses an
		:class:`Symfony\\Component\\ExpressionLanguage\\ParserCache\\ArrayParserCache`).
		You can customize this by creating a custom ``ParserCache`` and injecting this
		The caching is done by a `CacheItemPoolInterface`_ instance (by default, it uses an
		:class:`Symfony\\Component\\Cache\\Adapter\\ArrayAdapter`).
		You can customize this by creating a custom ``Cache`` and injecting this
		in the object using the constructor::

		use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
		useAcme\ExpressionLanguage\ParserCache\MyDatabaseParserCache;
		useSymfony\Component\Cache\Adapter\RedisAdapter;

		$cache = newMyDatabaseParserCache(...);
		$cache = newRedisAdapter(...);
		$language = new ExpressionLanguage($cache);
Copy link Member wouterjNov 8, 2016 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. Can we maybe enhance this a bit, to show we're really doing PSR-6 here? E.g. by showing something like: useSymfony\Component\ExpressionLanguage\ExpressionLanguage;useSymfony\Component\Cache\RedisAdapter;$cache =newRedisAdapter(...);$language =newExpressionLanguage($cache); Then, we can add a small "seealso" box pointing to the cache component: ..seealso:: See the:doc:`/components/cache` documentation for more information about available cache adapters. Copy link ContributorAuthor ReDnAxENov 8, 2016 Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. Thank you for your help, I agree, I'll do it as soon as possible :) wouterj reacted with thumbs up emoji

		..note::
		..seealso::

		The `DoctrineBridge`_ provides a Parser Cache implementation using the
		`doctrine cache library`_, which gives you caching for all sorts of cache
		strategies, like Apc, Filesystem and Memcached.
		See the :doc:`/components/cache` documentation for more information about
		available cache adapters.

		Using Parsed and Serialized Expressions
		---------------------------------------
Expand All		@@ -70,5 +67,4 @@ Both ``evaluate()`` and ``compile()`` can handle ``ParsedExpression`` and

		var_dump($language->evaluate($expression)); // prints 5

		.. _DoctrineBridge: https://github.com/symfony/doctrine-bridge
		.. _`doctrine cache library`: http://docs.doctrine-project.org/projects/doctrine-common/en/latest/reference/caching.html
		.. _`CacheItemPoolInterface`: https://github.com/php-fig/cache/blob/master/src/CacheItemPoolInterface.php