mirror of
https://github.com/slawkens/myaac.git
synced 2025-10-16 10:44:55 +02:00
* some changes
* moved some admin html code from php to twig templates (.html files) * minimum PHP version required by installer is now 5.1.2, cause of spl_autoload_register functon. * depracated Twig to version 1.20.0 cause of Autoloader * removed unused admin stylish template
This commit is contained in:
slawkens
271
system/libs/twig/NodeVisitor/Optimizer.php
Executable file
271
system/libs/twig/NodeVisitor/Optimizer.php
Executable file
@@ -0,0 +1,271 @@
|
||||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of Twig.
|
||||
*
|
||||
* (c) 2010 Fabien Potencier
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Twig_NodeVisitor_Optimizer tries to optimizes the AST.
|
||||
*
|
||||
* This visitor is always the last registered one.
|
||||
*
|
||||
* You can configure which optimizations you want to activate via the
|
||||
* optimizer mode.
|
||||
*
|
||||
* @author Fabien Potencier <fabien@symfony.com>
|
||||
*/
|
||||
class Twig_NodeVisitor_Optimizer extends Twig_BaseNodeVisitor
|
||||
{
|
||||
const OPTIMIZE_ALL = -1;
|
||||
const OPTIMIZE_NONE = 0;
|
||||
const OPTIMIZE_FOR = 2;
|
||||
const OPTIMIZE_RAW_FILTER = 4;
|
||||
const OPTIMIZE_VAR_ACCESS = 8;
|
||||
|
||||
protected $loops = array();
|
||||
protected $loopsTargets = array();
|
||||
protected $optimizers;
|
||||
protected $prependedNodes = array();
|
||||
protected $inABody = false;
|
||||
|
||||
/**
|
||||
* Constructor.
|
||||
*
|
||||
* @param int $optimizers The optimizer mode
|
||||
*/
|
||||
public function __construct($optimizers = -1)
|
||||
{
|
||||
if (!is_int($optimizers) || $optimizers > (self::OPTIMIZE_FOR | self::OPTIMIZE_RAW_FILTER | self::OPTIMIZE_VAR_ACCESS)) {
|
||||
throw new InvalidArgumentException(sprintf('Optimizer mode "%s" is not valid.', $optimizers));
|
||||
}
|
||||
|
||||
$this->optimizers = $optimizers;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
|
||||
{
|
||||
if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) {
|
||||
$this->enterOptimizeFor($node, $env);
|
||||
}
|
||||
|
||||
if (PHP_VERSION_ID < 50400 && self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) {
|
||||
if ($this->inABody) {
|
||||
if (!$node instanceof Twig_Node_Expression) {
|
||||
if (get_class($node) !== 'Twig_Node') {
|
||||
array_unshift($this->prependedNodes, array());
|
||||
}
|
||||
} else {
|
||||
$node = $this->optimizeVariables($node, $env);
|
||||
}
|
||||
} elseif ($node instanceof Twig_Node_Body) {
|
||||
$this->inABody = true;
|
||||
}
|
||||
}
|
||||
|
||||
return $node;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
|
||||
{
|
||||
$expression = $node instanceof Twig_Node_Expression;
|
||||
|
||||
if (self::OPTIMIZE_FOR === (self::OPTIMIZE_FOR & $this->optimizers)) {
|
||||
$this->leaveOptimizeFor($node, $env);
|
||||
}
|
||||
|
||||
if (self::OPTIMIZE_RAW_FILTER === (self::OPTIMIZE_RAW_FILTER & $this->optimizers)) {
|
||||
$node = $this->optimizeRawFilter($node, $env);
|
||||
}
|
||||
|
||||
$node = $this->optimizePrintNode($node, $env);
|
||||
|
||||
if (self::OPTIMIZE_VAR_ACCESS === (self::OPTIMIZE_VAR_ACCESS & $this->optimizers) && !$env->isStrictVariables() && !$env->hasExtension('sandbox')) {
|
||||
if ($node instanceof Twig_Node_Body) {
|
||||
$this->inABody = false;
|
||||
} elseif ($this->inABody) {
|
||||
if (!$expression && get_class($node) !== 'Twig_Node' && $prependedNodes = array_shift($this->prependedNodes)) {
|
||||
$nodes = array();
|
||||
foreach (array_unique($prependedNodes) as $name) {
|
||||
$nodes[] = new Twig_Node_SetTemp($name, $node->getLine());
|
||||
}
|
||||
|
||||
$nodes[] = $node;
|
||||
$node = new Twig_Node($nodes);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $node;
|
||||
}
|
||||
|
||||
protected function optimizeVariables(Twig_NodeInterface $node, Twig_Environment $env)
|
||||
{
|
||||
if ('Twig_Node_Expression_Name' === get_class($node) && $node->isSimple()) {
|
||||
$this->prependedNodes[0][] = $node->getAttribute('name');
|
||||
|
||||
return new Twig_Node_Expression_TempName($node->getAttribute('name'), $node->getLine());
|
||||
}
|
||||
|
||||
return $node;
|
||||
}
|
||||
|
||||
/**
|
||||
* Optimizes print nodes.
|
||||
*
|
||||
* It replaces:
|
||||
*
|
||||
* * "echo $this->render(Parent)Block()" with "$this->display(Parent)Block()"
|
||||
*
|
||||
* @param Twig_NodeInterface $node A Node
|
||||
* @param Twig_Environment $env The current Twig environment
|
||||
*
|
||||
* @return Twig_NodeInterface
|
||||
*/
|
||||
protected function optimizePrintNode(Twig_NodeInterface $node, Twig_Environment $env)
|
||||
{
|
||||
if (!$node instanceof Twig_Node_Print) {
|
||||
return $node;
|
||||
}
|
||||
|
||||
if (
|
||||
$node->getNode('expr') instanceof Twig_Node_Expression_BlockReference ||
|
||||
$node->getNode('expr') instanceof Twig_Node_Expression_Parent
|
||||
) {
|
||||
$node->getNode('expr')->setAttribute('output', true);
|
||||
|
||||
return $node->getNode('expr');
|
||||
}
|
||||
|
||||
return $node;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes "raw" filters.
|
||||
*
|
||||
* @param Twig_NodeInterface $node A Node
|
||||
* @param Twig_Environment $env The current Twig environment
|
||||
*
|
||||
* @return Twig_NodeInterface
|
||||
*/
|
||||
protected function optimizeRawFilter(Twig_NodeInterface $node, Twig_Environment $env)
|
||||
{
|
||||
if ($node instanceof Twig_Node_Expression_Filter && 'raw' == $node->getNode('filter')->getAttribute('value')) {
|
||||
return $node->getNode('node');
|
||||
}
|
||||
|
||||
return $node;
|
||||
}
|
||||
|
||||
/**
|
||||
* Optimizes "for" tag by removing the "loop" variable creation whenever possible.
|
||||
*
|
||||
* @param Twig_NodeInterface $node A Node
|
||||
* @param Twig_Environment $env The current Twig environment
|
||||
*/
|
||||
protected function enterOptimizeFor(Twig_NodeInterface $node, Twig_Environment $env)
|
||||
{
|
||||
if ($node instanceof Twig_Node_For) {
|
||||
// disable the loop variable by default
|
||||
$node->setAttribute('with_loop', false);
|
||||
array_unshift($this->loops, $node);
|
||||
array_unshift($this->loopsTargets, $node->getNode('value_target')->getAttribute('name'));
|
||||
array_unshift($this->loopsTargets, $node->getNode('key_target')->getAttribute('name'));
|
||||
} elseif (!$this->loops) {
|
||||
// we are outside a loop
|
||||
return;
|
||||
}
|
||||
|
||||
// when do we need to add the loop variable back?
|
||||
|
||||
// the loop variable is referenced for the current loop
|
||||
elseif ($node instanceof Twig_Node_Expression_Name && 'loop' === $node->getAttribute('name')) {
|
||||
$node->setAttribute('always_defined', true);
|
||||
$this->addLoopToCurrent();
|
||||
}
|
||||
|
||||
// optimize access to loop targets
|
||||
elseif ($node instanceof Twig_Node_Expression_Name && in_array($node->getAttribute('name'), $this->loopsTargets)) {
|
||||
$node->setAttribute('always_defined', true);
|
||||
}
|
||||
|
||||
// block reference
|
||||
elseif ($node instanceof Twig_Node_BlockReference || $node instanceof Twig_Node_Expression_BlockReference) {
|
||||
$this->addLoopToCurrent();
|
||||
}
|
||||
|
||||
// include without the only attribute
|
||||
elseif ($node instanceof Twig_Node_Include && !$node->getAttribute('only')) {
|
||||
$this->addLoopToAll();
|
||||
}
|
||||
|
||||
// include function without the with_context=false parameter
|
||||
elseif ($node instanceof Twig_Node_Expression_Function
|
||||
&& 'include' === $node->getAttribute('name')
|
||||
&& (!$node->getNode('arguments')->hasNode('with_context')
|
||||
|| false !== $node->getNode('arguments')->getNode('with_context')->getAttribute('value')
|
||||
)
|
||||
) {
|
||||
$this->addLoopToAll();
|
||||
}
|
||||
|
||||
// the loop variable is referenced via an attribute
|
||||
elseif ($node instanceof Twig_Node_Expression_GetAttr
|
||||
&& (!$node->getNode('attribute') instanceof Twig_Node_Expression_Constant
|
||||
|| 'parent' === $node->getNode('attribute')->getAttribute('value')
|
||||
)
|
||||
&& (true === $this->loops[0]->getAttribute('with_loop')
|
||||
|| ($node->getNode('node') instanceof Twig_Node_Expression_Name
|
||||
&& 'loop' === $node->getNode('node')->getAttribute('name')
|
||||
)
|
||||
)
|
||||
) {
|
||||
$this->addLoopToAll();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Optimizes "for" tag by removing the "loop" variable creation whenever possible.
|
||||
*
|
||||
* @param Twig_NodeInterface $node A Node
|
||||
* @param Twig_Environment $env The current Twig environment
|
||||
*/
|
||||
protected function leaveOptimizeFor(Twig_NodeInterface $node, Twig_Environment $env)
|
||||
{
|
||||
if ($node instanceof Twig_Node_For) {
|
||||
array_shift($this->loops);
|
||||
array_shift($this->loopsTargets);
|
||||
array_shift($this->loopsTargets);
|
||||
}
|
||||
}
|
||||
|
||||
protected function addLoopToCurrent()
|
||||
{
|
||||
$this->loops[0]->setAttribute('with_loop', true);
|
||||
}
|
||||
|
||||
protected function addLoopToAll()
|
||||
{
|
||||
foreach ($this->loops as $loop) {
|
||||
$loop->setAttribute('with_loop', true);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function getPriority()
|
||||
{
|
||||
return 255;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user