/**
* Adds debugging information.
*
* @param Apishka_Templater_Node $node The related twig node
*
* @return Apishka_Templater_Compiler The current compiler instance
*/
public function addDebugInfo(Apishka_Templater_NodeAbstract $node)
{
if ($node->getLine() != $this->_last_line) {
$this->write(sprintf("// line %d\n", $node->getLine()));
// when mbstring.func_overload is set to 2
// mb_substr_count() replaces substr_count()
// but they have different signatures!
if ((int) ini_get('mbstring.func_overload') & 2) {
// this is much slower than the "right" version
$this->_source_line += mb_substr_count(mb_substr($this->_source, $this->_source_offset), "\n");
} else {
$this->_source_line += substr_count($this->_source, "\n", $this->_source_offset);
}
$this->_source_offset = strlen($this->_source);
$this->_debug_info[$this->_source_line] = $node->getLine();
$this->_last_line = $node->getLine();
}
return $this;
}
private function getEscaperFilter($type, Apishka_Templater_NodeAbstract $node)
{
$line = $node->getLine();
$name = Apishka_Templater_Node_Expression_Constant::apishka('escape', $line);
$args = Apishka_Templater_Node::apishka(array(Apishka_Templater_Node_Expression_Constant::apishka((string) $type, $line), Apishka_Templater_Node_Expression_Constant::apishka(null, $line), Apishka_Templater_Node_Expression_Constant::apishka(true, $line)));
return Apishka_Templater_Node_Expression_Filter::apishka($node, $name, $args, $line);
}
private function filterBodyNodes(Apishka_Templater_NodeAbstract $node)
{
// check that the body does not contain non-empty output nodes
if ($node instanceof Apishka_Templater_Node_Text && !ctype_space($node->getAttribute('data')) || !$node instanceof Apishka_Templater_Node_Text && !$node instanceof Apishka_Templater_Node_BlockReference && $node instanceof Apishka_Templater_NodeOutputInterface) {
if (false !== strpos((string) $node, chr(0xef) . chr(0xbb) . chr(0xbf))) {
throw new Apishka_Templater_Error_Syntax('A template that extends another one cannot have a body but a byte order mark (BOM) has been detected; it must be removed.', $node->getLine(), $this->getFilename());
}
throw new Apishka_Templater_Error_Syntax('A template that extends another one cannot have a body.', $node->getLine(), $this->getFilename());
}
// bypass "set" nodes as they "capture" the output
if ($node instanceof Apishka_Templater_Node_Set) {
return $node;
}
if ($node instanceof Apishka_Templater_NodeOutputInterface) {
return;
}
foreach ($node as $k => $n) {
if (null !== $n && null === $this->filterBodyNodes($n)) {
$node->removeNode($k);
}
}
return $node;
}
private function checkLoopUsageBody(Apishka_Templater_TokenStream $stream, Apishka_Templater_NodeAbstract $node)
{
if ($node instanceof Apishka_Templater_Node_Expression_GetAttr && $node->getNode('node') instanceof Apishka_Templater_Node_Expression_Name && 'loop' == $node->getNode('node')->getAttribute('name')) {
$attribute = $node->getNode('attribute');
if ($attribute instanceof Apishka_Templater_Node_Expression_Constant && in_array($attribute->getAttribute('value'), array('length', 'revindex0', 'revindex', 'last'))) {
throw new Apishka_Templater_Error_Syntax(sprintf('The "loop.%s" variable is not defined when looping with a condition.', $attribute->getAttribute('value')), $node->getLine(), $stream->getFilename());
}
}
// should check for parent.loop.XXX usage
if ($node instanceof Apishka_Templater_Node_For) {
return;
}
foreach ($node as $n) {
if (!$n) {
continue;
}
$this->checkLoopUsageBody($stream, $n);
}
}
