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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
class Twig_Tests_NodeVisitor_OptimizerTest extends PHPUnit_Framework_TestCase
{
public function testRenderBlockOptimizer()
{
$env = new Twig_Environment(new Twig_Loader_String(), array('cache' => false, 'autoescape' => false));
$stream = $env->parse($env->tokenize('{{ block("foo") }}', 'index'));
$node = $stream->getNode('body')->getNode(0);
$this->assertEquals('Twig_Node_Expression_BlockReference', get_class($node));
$this->assertTrue($node->getAttribute('output'));
}
public function testRenderParentBlockOptimizer()
{
$env = new Twig_Environment(new Twig_Loader_String(), array('cache' => false, 'autoescape' => false));
$stream = $env->parse($env->tokenize('{% extends "foo" %}{% block content %}{{ parent() }}{% endblock %}', 'index'));
$node = $stream->getNode('blocks')->getNode('content')->getNode(0)->getNode('body');
$this->assertEquals('Twig_Node_Expression_Parent', get_class($node));
$this->assertTrue($node->getAttribute('output'));
}
public function testRenderVariableBlockOptimizer()
{
if (version_compare(phpversion(), '5.4.0RC1', '>=')) {
return;
}
$env = new Twig_Environment(new Twig_Loader_String(), array('cache' => false, 'autoescape' => false));
$stream = $env->parse($env->tokenize('{{ block(name|lower) }}', 'index'));
$node = $stream->getNode('body')->getNode(0)->getNode(1);
$this->assertEquals('Twig_Node_Expression_BlockReference', get_class($node));
$this->assertTrue($node->getAttribute('output'));
}
/**
* @dataProvider getTestsForForOptimizer
*/
public function testForOptimizer($template, $expected)
{
$env = new Twig_Environment(new Twig_Loader_String(), array('cache' => false));
$stream = $env->parse($env->tokenize($template, 'index'));
foreach ($expected as $target => $withLoop) {
$this->assertTrue($this->checkForConfiguration($stream, $target, $withLoop), sprintf('variable %s is %soptimized', $target, $withLoop ? 'not ' : ''));
}
}
public function getTestsForForOptimizer()
{
return array(
array('{% for i in foo %}{% endfor %}', array('i' => false)),
array('{% for i in foo %}{{ loop.index }}{% endfor %}', array('i' => true)),
array('{% for i in foo %}{% for j in foo %}{% endfor %}{% endfor %}', array('i' => false, 'j' => false)),
array('{% for i in foo %}{% include "foo" %}{% endfor %}', array('i' => true)),
array('{% for i in foo %}{% include "foo" only %}{% endfor %}', array('i' => false)),
array('{% for i in foo %}{% include "foo" with { "foo": "bar" } only %}{% endfor %}', array('i' => false)),
array('{% for i in foo %}{% include "foo" with { "foo": loop.index } only %}{% endfor %}', array('i' => true)),
array('{% for i in foo %}{% for j in foo %}{{ loop.index }}{% endfor %}{% endfor %}', array('i' => false, 'j' => true)),
array('{% for i in foo %}{% for j in foo %}{{ loop.parent.loop.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => true)),
array('{% for i in foo %}{% set l = loop %}{% for j in foo %}{{ l.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => false)),
array('{% for i in foo %}{% for j in foo %}{{ foo.parent.loop.index }}{% endfor %}{% endfor %}', array('i' => false, 'j' => false)),
array('{% for i in foo %}{% for j in foo %}{{ loop["parent"].loop.index }}{% endfor %}{% endfor %}', array('i' => true, 'j' => true)),
);
}
public function checkForConfiguration(Twig_NodeInterface $node = null, $target, $withLoop)
{
if (null === $node) {
return;
}
foreach ($node as $n) {
if ($n instanceof Twig_Node_For) {
if ($target === $n->getNode('value_target')->getAttribute('name')) {
return $withLoop == $n->getAttribute('with_loop');
}
}
$ret = $this->checkForConfiguration($n, $target, $withLoop);
if (null !== $ret) {
return $ret;
}
}
}
}
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