Attempt to check if a class exists or not. This never goes through the PHP autoloading mechanism but uses the {@link AnnotationRegistry} to load classes.
string $fqcn:
boolean
private function classExists($fqcn) {
if (isset($this->classExists[$fqcn])) {
return $this->classExists[$fqcn];
}
// first check if the class already exists, maybe loaded through another AnnotationReader
if (class_exists($fqcn, false)) {
return $this->classExists[$fqcn] = true;
}
// final check, does this class exist?
return $this->classExists[$fqcn] = AnnotationRegistry::loadAnnotationClass($fqcn);
}