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Fabien Potencier
96 lines
3.2 KiB
ReStructuredText
96 lines
3.2 KiB
ReStructuredText
Deprecated Features
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===================
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This document lists deprecated features in Twig 2.x. Deprecated features are
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kept for backward compatibility and removed in the next major release (a
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feature that was deprecated in Twig 2.x is removed in Twig 3.0).
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PSR-0
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-----
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* PSR-0 classes are deprecated in favor of namespaced ones since Twig 2.7.
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Inheritance
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-----------
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* Defining a "block" definition in a non-capturing block in a child template is
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deprecated since Twig 2.5.0. In Twig 3.0, it will throw a
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``Twig\Error\SyntaxError`` exception. It does not work anyway, so most
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projects won't need to do anything to upgrade.
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Errors
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------
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* Passing a string as the ``$source`` argument on ``\Twig\Error\Error`` /
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``Twig\Error\Error`` constructor is deprecated since Twig 2.6.1. Pass an
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instance of ``Twig\Source`` instead.
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Tags
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----
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* The ``spaceless`` tag is deprecated in Twig 2.7. Use the ``spaceless`` filter
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instead or ``{% filter spaceless %}`` (the ``Twig\Node\SpacelessNode`` and
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``Twig\TokenParser\SpacelessTokenParser`` classes are also deprecated).
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* Using the ``spaceless`` tag at the root level of a child template is
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deprecated in Twig 2.5.0. This does not work as one would expect it to work
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anyway. In Twig 3.0, it will throw a ``Twig\Error\SyntaxError`` exception.
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Final Classes
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-------------
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The following classes are marked as ``@final`` in Twig 2 and will be final in
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3.0:
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* ``Twig\Node\ModuleNode``
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* ``Twig\TwigFilter``
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* ``Twig\TwigFunction``
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* ``Twig\TwigTest``
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* ``Twig\Profiler\Profile``
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Parser
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------
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* As of Twig 2.7, the ``\Twig\Parser::isReservedMacroName()`` / ``Twig\Parser``
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function is deprecated and will be removed in Twig 3.0. It always returns
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``false`` anyway as Twig 2 does not have any reserved macro names.
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Environment
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-----------
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* As of Twig 2.7, the ``base_template_class`` option on ``Twig\Environment`` is
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deprecated and will be removed in Twig 3.0.
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* As of Twig 2.7, the ``Twig\Environment::getBaseTemplateClass()`` and
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``Twig\Environment::setBaseTemplateClass()`` methods are deprecated and will
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be removed in Twig 3.0.
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* As of Twig 2.7, the ``Twig\Environment::getTemplateClass()`` is marked as
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being internal and should not be used.
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* As of Twig 2.7, passing a ``Twig\Template`` instance to the
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``Twig\Environment::load()`` and ``Twig\Environment::resolveTemplate()`` is
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deprecated.
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* Depending on the input, ``Twig\Environment::resolveTemplate()`` can return
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a ``Twig\Template`` or a ``Twig\TemplateWrapper`` instance. In Twig 3.0, this
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method will **always** return a ``Twig\TemplateWrapper`` instance. You should
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only rely on the methods of this class if you want to be forward-compatible.
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Interfaces
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----------
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* As of Twig 2.7, the empty ``Twig\Loader\ExistsLoaderInterface`` interface is
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deprecated and will be removed in Twig 3.0.
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* As of Twig 2.7, the ``Twig\Extension\InitRuntimeInterface`` interface is
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deprecated and will be removed in Twig 3.0.
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Miscellaneous
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-------------
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* As of Twig 2.7, the ``Twig_SimpleFilter``, ``Twig_SimpleFunction``, and
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``Twig_SimpleTest`` empty classes are deprecated and will be removed in Twig
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3.0. Use ``Twig\TwigFilter``, ``Twig\TwigFunction``, and ``Twig\TwigTest``
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respectively.
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