/**
* Returns the string object class name of $property on $instanceOrClassName - or NULL if target $property is not of type object.
*
* @param mixed $instanceOrClassName
* @param string $propertyName
* @return string|NULL
*/
protected function assertTargetInstanceClassName($instanceOrClassName, $propertyName)
{
$className = TRUE === is_object($instanceOrClassName) ? get_class($instanceOrClassName) : $instanceOrClassName;
$type = $this->reflectionService->getPropertyTagValues($className, $propertyName, 'var');
$bracketPosition = strpos($type, '<');
if (FALSE !== $bracketPosition) {
$type = substr($type, $bracketPosition + 1);
$type = substr($type, 0, -1);
}
$squareBracketPosition = strpos($type, '[');
if (FALSE !== $squareBracketPosition) {
$type = substr($type, 0, $squareBracketPosition);
}
return class_exists($type) ? $type : NULL;
}
