Pinq\Parsing\PhpParser\Visitors\FunctionLocatorVisitor::enterNode PHP Method

    public function enterNode(Node $node)
    {
        switch (true) {
            case $node instanceof Node\Stmt\Namespace_:
                $this->namespace = (string) $node->name;
                break;
            case $node instanceof Node\Stmt\Class_:
                $this->class = $node->name;
                break;
            case $node instanceof Node\Stmt\Trait_:
                $this->trait = $node->name;
                break;
            case $node instanceof Node\Stmt\Function_:
                $signature = $this->getFunctionNodeSignature($node);
                $this->foundFunctionNode($this->getLocatedFunctionNode($node, $signature));
                $this->function = $node->name;
                break;
            case $node instanceof Node\Stmt\ClassMethod:
                $signature = $this->getMethodNodeSignature($node);
                $this->foundFunctionNode($this->getLocatedFunctionNode($node, $signature));
                $this->function = $node->name;
                break;
            case $node instanceof Node\Expr\Closure:
                $signature = $this->getClosureNodeSignature($node);
                $this->foundFunctionNode($this->getLocatedFunctionNode($node, $signature));
                $this->closureNestingLevel++;
                break;
            default:
                break;
        }
    }