public function __construct(Twig_Node $node, $name, Twig_Node $arguments = null, $lineno)
{
if ($node instanceof Twig_Node_Expression_Name) {
$node->setAttribute('is_defined_test', true);
} elseif ($node instanceof Twig_Node_Expression_GetAttr) {
$node->setAttribute('is_defined_test', true);
$this->changeIgnoreStrictCheck($node);
} elseif ($node instanceof Twig_Node_Expression_Constant || $node instanceof Twig_Node_Expression_Array || $node instanceof Twig_Node_Expression_GetProperty || $node instanceof Twig_Node_Expression_MethodCall) {
$node = new Twig_Node_Expression_Constant(true, $node->getLine());
} else {
throw new Twig_Error_Syntax('The "defined" test only works with simple variables.', $this->getLine());
}
parent::__construct($node, $name, $arguments, $lineno);
}
protected function doLeaveNode(\Twig_Node $node, \Twig_Environment $env)
{
if ($node instanceof WhitespaceCollapse || $node instanceof \Twig_Node_Block || $node instanceof \Twig_Node_AutoEscape) {
array_pop($this->statusStack);
} elseif ($node instanceof \Twig_Node_BlockReference) {
$this->blocks[$node->getAttribute('name')] = $this->needCollapsing();
} elseif ($node instanceof \Twig_Node_Text && $this->needCollapsing()) {
$text = $node->getAttribute('data');
if ($this->previousNode instanceof \Twig_Node_Text && ctype_space(substr($this->previousNode->getAttribute('data'), -1))) {
$text = ltrim($text);
}
if ($text === '') {
return false;
}
$node->setAttribute('data', preg_replace(array('/\\s{2,}/', '/<\\s/', '/\\s>/'), array(' ', '<', '>'), $text));
}
$this->previousNode = $node;
return $node;
}
/**
* Optimizes "for" tag by removing the "loop" variable creation whenever possible.
*
* @param Twig_Node $node A Node
* @param Twig_Environment $env The current Twig environment
*/
protected function enterOptimizeFor(Twig_Node $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;
} elseif ($node instanceof Twig_Node_Expression_Name && 'loop' === $node->getAttribute('name')) {
$node->setAttribute('always_defined', true);
$this->addLoopToCurrent();
} elseif ($node instanceof Twig_Node_Expression_Name && in_array($node->getAttribute('name'), $this->loopsTargets)) {
$node->setAttribute('always_defined', true);
} elseif ($node instanceof Twig_Node_BlockReference || $node instanceof Twig_Node_Expression_BlockReference) {
$this->addLoopToCurrent();
} elseif ($node instanceof Twig_Node_Include && !$node->getAttribute('only')) {
$this->addLoopToAll();
} elseif ($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'))) {
$this->addLoopToAll();
} elseif ($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();
}
}
public function enterNode(Twig_Node $node, Twig_Environment $env)
{
if ($node instanceof Twig_Node_Expression_GetAttr) {
$node->setAttribute('disable_c_ext', true);
}
return $node;
}
