/**
* @param GroupNode $astNode
*
* @return bool
*/
public function postVisitGroupNode(GroupNode $astNode)
{
if (0 < $astNode->countChildren()) {
$this->visitContext->popParentId();
}
return true;
}
/**
* @param CommentNode $astNode
* @return bool
*/
public function visitCommentNode(CommentNode $astNode)
{
$increment = $this->visitContext->countParentIds();
$this->formatter->indent($increment, $this->dotWriter);
$nodeId = $this->buildNumberedDOTIdentifier('"comment[%s]"', $this->visitContext);
$parentId = $this->visitContext->peekParentId();
$this->dotWriter->writeEdgeStatement($parentId, $nodeId);
$this->formatter->whitespace(1, $this->dotWriter);
//formatting options
$this->dotWriter->writeStatementTerminator();
return true;
}
/**
* @param RuleNode $astNode
* @return bool
*/
public function postVisitRuleNode(RuleNode $astNode)
{
$this->visitContext->popParentId();
return true;
}
/**
* @param SyntaxNode $astNode
* @return bool
*/
public function postVisitSyntaxNode(SyntaxNode $astNode)
{
$this->dotWriter->closeGraph();
$this->visitContext->popParentId();
return true;
}
protected function buildNumberedDOTIdentifier($sprintfPattern, VisitContext $visitContext)
{
$idNumber = $visitContext->getNodeCount();
return sprintf($sprintfPattern, $idNumber);
}