/**
* Store newly defined function names on the way in, to allow recursion.
*
* @param Node $node
*/
public function enterNode(Node $node)
{
parent::enterNode($node);
if ($node instanceof FunctionStmt) {
$name = $this->getFullyQualifiedName($node->name);
if (function_exists($name) || isset($this->currentScope[strtolower($name)])) {
throw new FatalErrorException(sprintf('Cannot redeclare %s()', $name), 0, 1, null, $node->getLine());
}
$this->currentScope[strtolower($name)] = true;
}
}
/**
* Validate class, interface and trait definitions.
*
* Validate them upon entering the node, so that we know about their
* presence and can validate constant fetches and static calls in class or
* trait methods.
*
* @param Node
*/
public function enterNode(Node $node)
{
parent::enterNode($node);
if ($node instanceof ClassStmt) {
$this->validateClassStatement($node);
} elseif ($node instanceof InterfaceStmt) {
$this->validateInterfaceStatement($node);
} elseif ($node instanceof TraitStmt) {
$this->validateTraitStatement($node);
}
}
