/**
* @param string $class
* @param null|string $alias
* @param bool $checkClassExists Use FALSE when you want to use a namespace instead of a class
*
* @return $this
* @throws Exception\ClassUse When the given class does not exists
*/
public function addUse($class, $alias = null, $checkClassExists = true)
{
if ($checkClassExists === true && $this->classFile->isClassDefined("\\{$class}") === false && $this->classFile->isInterfaceDefined("\\{$class}") === false && $this->classFile->isTraitDefined("\\{$class}") === false) {
throw Exception\ClassUse::classUseNotFound($class);
}
$use = new ClassUse($class, $alias);
$this->append($use);
return $this;
}
/**
* Checks if the interface is defined or not
*
* @param string $interface
*
* @return boolean
*/
protected function isInterfaceDefined($interface)
{
return $this->classFile->isInterfaceDefined($interface);
}