private function getCallingInfo(Node $node)
    {
        return coroutine(function () use ($node) {
            $fqn = null;
            $callingNode = null;
            if ($node instanceof Node\DelimitedList\ArgumentExpressionList) {
                // Cursor is already inside a (
                $argumentExpressionList = $node;
                if ($node->parent instanceof Node\Expression\ObjectCreationExpression) {
                    // Constructing something
                    $callingNode = $node->parent->classTypeDesignator;
                    if (!$callingNode instanceof Node\QualifiedName) {
                        // We only support constructing from a QualifiedName
                        return null;
                    }
                    $fqn = $this->definitionResolver->resolveReferenceNodeToFqn($callingNode);
                    $fqn = "{$fqn}->__construct()";
                } else {
                    $callingNode = $node->parent->getFirstChildNode(
                        Node\Expression\MemberAccessExpression::class,
                        Node\Expression\ScopedPropertyAccessExpression::class,
                        Node\QualifiedName::class
                    );
                }
            } elseif ($node instanceof Node\Expression\CallExpression) {
                $argumentExpressionList = $node->getFirstChildNode(Node\DelimitedList\ArgumentExpressionList::class);
                $callingNode = $node->getFirstChildNode(
                    Node\Expression\MemberAccessExpression::class,
                    Node\Expression\ScopedPropertyAccessExpression::class,
                    Node\QualifiedName::class
                );
            } elseif ($node instanceof Node\Expression\ObjectCreationExpression) {
                $argumentExpressionList = $node->getFirstChildNode(Node\DelimitedList\ArgumentExpressionList::class);
                $callingNode = $node->classTypeDesignator;
                if (!$callingNode instanceof Node\QualifiedName) {
                    // We only support constructing from a QualifiedName
                    return null;
                }
                // Manually build the __construct fqn
                $fqn = $this->definitionResolver->resolveReferenceNodeToFqn($callingNode);
                $fqn = "{$fqn}->__construct()";
            }

            if (!$callingNode) {
                return null;
            }

            // Now find the definition of the call
            $fqn = $fqn ?: DefinitionResolver::getDefinedFqn($callingNode);
            while (true) {
                if ($fqn) {
                    $def = $this->index->getDefinition($fqn);
                } else {
                    $def = $this->definitionResolver->resolveReferenceNodeToDefinition($callingNode);
                }
                if ($def !== null || $this->index->isComplete()) {
                    break;
                }
                yield waitForEvent($this->index, 'definition-added');
            }

            if (!$def) {
                return null;
            }

            return [$def, $argumentExpressionList];
        });
    }