public function accept(Ast\Visitor $visitor)
{
$visitor->visitEnter($this);
$visitor->visit($this);
$this->sequence->accept($visitor);
$visitor->visitLeave($this);
}
public function accept(Ast\Visitor $visitor)
{
if ($this->parameter instanceof Ast) {
if ($visitor->visitEnter($this)) {
$this->parameter->accept($visitor);
$visitor->visitLeave($this);
}
} else {
$visitor->visit($this);
}
}
/**
* Accept visitors, because this element has children, enter and leave are called.
*
* @param Ast\Visitor $visitor
* @return null|void
*/
public function accept(Ast\Visitor $visitor)
{
if ($visitor->visitEnter($this)) {
foreach ($this->simples as $simple) {
/**
* @var Simple $simple
*/
$simple->accept($visitor);
}
if (isset($this->combinator)) {
$this->combinator->accept($visitor);
}
return $visitor->visitLeave($this);
}
return NULL;
}
/**
* Accept visitors, because this element has children, enter and leave are called.
*
* @param Ast\Visitor $visitor
* @return null|void
*/
public function accept(Ast\Visitor $visitor)
{
if ($visitor->visitEnter($this)) {
/**
* @var Sequence $sequence
*/
foreach ($this as $sequence) {
$sequence->accept($visitor);
}
return $visitor->visitLeave($this);
}
return NULL;
}