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<?php |
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/** |
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* @author CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @copyright CONTENT CONTROL http://www.contentcontrol-berlin.de/ |
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* @license http://www.gnu.org/licenses/gpl.html GNU General Public License |
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*/ |
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namespace midgard\portable\mgdschema; |
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use midgard\portable\xmlreader; |
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use midgard\portable\storage\connection; |
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class manager |
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{ |
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/** |
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* @var type[] |
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*/ |
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private $types; |
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/** |
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* @var string[] |
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*/ |
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private $schemadirs; |
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/** |
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* @var string |
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*/ |
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private $namespace; |
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/** |
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* @var array |
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*/ |
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private $merged_types = []; |
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/** |
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* |
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* @var array |
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*/ |
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private $child_classes = []; |
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public function __construct(array $schemadirs, string $namespace) |
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{ |
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$this->schemadirs = $schemadirs; |
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$this->namespace = $namespace; |
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} |
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/** |
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* @return type[] |
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*/ |
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public function get_types() : array |
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{ |
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$this->initialize(); |
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return $this->types; |
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} |
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public function get_inherited_mapping() : array |
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{ |
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$this->initialize(); |
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return $this->merged_types; |
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} |
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public function get_child_classes(string $typename) : array |
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{ |
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$this->initialize(); |
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return $this->child_classes[$typename] ?? []; |
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} |
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public function resolve_targetclass(property $property) : string |
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{ |
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$this->initialize(); |
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$fqcn = $this->get_fcqn($property->link['target']); |
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if ( isset($this->types[$fqcn]) |
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|| $property->link['target'] === $property->get_parent()->name) { |
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return $property->link['target']; |
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} |
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if (!isset($this->merged_types[$property->link['target']])) { |
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throw new \Exception('Link to unknown class ' . $property->link['target']); |
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} |
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return $this->merged_types[$property->link['target']]; |
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} |
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private function initialize() |
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{ |
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if ($this->types !== null) { |
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return; |
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} |
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$reader = new xmlreader; |
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$types = $reader->parse(dirname(__DIR__, 2) . '/xml/core.xml'); |
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foreach ($this->schemadirs as $schemadir) { |
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foreach (glob($schemadir . '*.xml') as $filename) { |
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if (!file_exists($filename)) { |
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connection::log()->warning('File exists check for ' . $filename . ' returned false, skipping'); |
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continue; |
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} |
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$types = array_merge($types, $reader->parse($filename)); |
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} |
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} |
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$tablemap = []; |
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foreach ($types as $name => $type) { |
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if ($type->parent) { |
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$this->register_child_class($type); |
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} |
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if (!isset($tablemap[$type->table])) { |
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$tablemap[$type->table] = []; |
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} |
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$tablemap[$type->table][] = $type; |
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} |
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foreach ($tablemap as $name => $types) { |
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if (count($types) == 1) { |
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$this->add_type($types[0]); |
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unset($tablemap[$name]); |
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} |
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} |
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// We need to process those separately, to be sure the targets for rewriting links are present |
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while ($types = array_pop($tablemap)) { |
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if (!$this->create_merged_types($types)) { |
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array_push($types, $tablemap); |
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} |
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} |
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} |
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private function register_child_class(type $type) |
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{ |
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if (!isset($this->child_classes[$type->parent])) { |
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$this->child_classes[$type->parent] = []; |
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} |
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$this->child_classes[$type->parent][$type->name] = $type->parentfield; |
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} |
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/** |
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* This sort of provides a workaround for situations where two tables use the same name |
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* |
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* @param type[] $types |
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*/ |
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private function create_merged_types(array $types) : bool |
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{ |
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usort($types, function(type $a, type $b) { |
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return strcasecmp($a->name, $b->name); |
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}); |
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$root_type = null; |
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foreach ($types as $i => $type) { |
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// TODO: We should have a second pass here that prefers classnames starting with midgard_ |
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if ($type->extends === '\\midgard\\portable\\api\\mgdobject') { |
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$root_type = $type; |
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unset($types[$i]); |
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break; |
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} |
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} |
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if (empty($root_type)) { |
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throw new \Exception('could not determine root type of merged group'); |
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} |
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foreach ($types as $type) { |
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foreach ($type->get_properties() as $property) { |
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if ($root_type->has_property($property->name)) { |
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$root_property = $root_type->get_property($property->name); |
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if ($root_property->field !== $property->field) { |
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connection::log()->error('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use column ' . $property->field); |
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} |
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if ($root_property->type !== $property->type) { |
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connection::log()->warning('Naming collision in ' . $root_type->name . ': Field ' . $type->name . '.' . $property->name . ' cannot use type ' . $property->type); |
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} |
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continue; |
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} |
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$root_type->add_property($property); |
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} |
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if (isset($this->child_classes[$type->name])) { |
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foreach ($this->child_classes[$type->name] as $childname => $parentfield) { |
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$child_type = $this->get_type_by_shortname($childname); |
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if ($child_type === null) { |
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return false; |
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} |
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$child_type->parent = $root_type->name; |
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$this->register_child_class($child_type); |
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} |
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unset($this->child_classes[$type->name]); |
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} |
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$this->merged_types[$type->name] = $root_type->name; |
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} |
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$this->add_type($root_type); |
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return true; |
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} |
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private function get_type_by_shortname(string $classname) : type |
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{ |
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$fqcn = $this->get_fcqn($classname); |
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if (!isset($this->types[$fqcn])) { |
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if (!isset($this->merged_types[$classname])) { |
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return null; |
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} |
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$fqcn = $this->get_fcqn($this->merged_types[$classname]); |
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} |
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return $this->types[$fqcn]; |
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} |
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private function add_type(type $type) |
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{ |
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$classname = $type->name; |
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// TODO: This should probably be in classgenerator |
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if ($classname === 'midgard_user') { |
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$type->extends = 'base_user'; |
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} |
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if ($classname === 'midgard_person') { |
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$type->extends = 'base_person'; |
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} |
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if ($classname === 'midgard_parameter') { |
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$type->extends = 'base_parameter'; |
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} |
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if ($classname === 'midgard_repligard') { |
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$type->extends = 'base_repligard'; |
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} |
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if ($classname === 'midgard_attachment') { |
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$type->extends = 'base_attachment'; |
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} |
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$this->types[$this->get_fcqn($classname)] = $type; |
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} |
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private function get_fcqn(string $classname) : string |
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{ |
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if (!empty($this->namespace)) { |
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return $this->namespace . '\\' . $classname; |
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} |
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return $classname; |
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} |
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} |
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flack /
midgard-portable
