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<?php |
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namespace ConfigToken\TreeCompiler; |
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use ConfigToken\Exception\AlreadyRegisteredException; |
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class XrefCollection implements \IteratorAggregate, \ArrayAccess |
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{ |
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/** @var Xref[] */ |
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protected $collection; |
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public function __construct() |
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{ |
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$this->clear(); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Retrieve an external iterator |
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* @link http://php.net/manual/en/iteratoraggregate.getiterator.php |
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* @return \Traversable An instance of an object implementing <b>Iterator</b> or <b>Traversable</b> |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->collection); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Whether a offset exists |
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* @link http://php.net/manual/en/arrayaccess.offsetexists.php |
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* @param mixed $offset <p> |
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* An offset to check for. |
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* </p> |
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* @return boolean true on success or false on failure. |
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* </p> |
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* <p> |
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* The return value will be casted to boolean if non-boolean was returned. |
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*/ |
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public function offsetExists($offset) |
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{ |
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return $this->hasById($offset); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Offset to retrieve |
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* @link http://php.net/manual/en/arrayaccess.offsetget.php |
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* @param mixed $offset <p> |
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* The offset to retrieve. |
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* </p> |
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* @return mixed Can return all value types. |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->getById($offset); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Offset to set |
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* @link http://php.net/manual/en/arrayaccess.offsetset.php |
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* @param mixed $offset <p> |
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* The offset to assign the value to. |
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* </p> |
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* @param mixed $value <p> |
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* The value to set. |
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* </p> |
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* @return void |
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* @throws \Exception |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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if (!$value instanceof Xref) { |
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throw new \Exception('Value is not an Xref.'); |
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} |
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if (!isset($offset)) { |
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$this->add($value); |
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return; |
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} |
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$this->collection[$offset] = $value; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Offset to unset |
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* @link http://php.net/manual/en/arrayaccess.offsetunset.php |
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* @param mixed $offset <p> |
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* The offset to unset. |
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* </p> |
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* @return void |
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*/ |
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public function offsetUnset($offset) |
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{ |
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if (!isset($offset)) { |
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return; |
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} |
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if ($this->hasById($offset)) { |
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$this->removeById($offset); |
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return; |
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} |
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trigger_error(sprintf('Xref with id "%s" not in collection.', $offset), E_USER_WARNING); |
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} |
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public function isEmpty() |
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{ |
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return empty($this->collection); |
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} |
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public function clear() |
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{ |
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$this->collection = array(); |
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return $this; |
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} |
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public function add(Xref $xref) |
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{ |
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$xrefId = $xref->getId(); |
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if ($this->hasById($xrefId)) { |
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return $this->getById($xrefId); |
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} |
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$this->collection[] = $xref; |
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return $xref; |
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} |
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public function removeById($xrefId) |
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{ |
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$xref = null; |
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if ($this->hasById($xrefId)) { |
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foreach ($this->collection as $key => $xref) { |
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if ($xref->getId() == $xrefId) { |
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unset($this->collection[$key]); |
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} |
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} |
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} else { |
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throw new \Exception( |
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sprintf( |
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'Xref with id "%s" not in collection.', |
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$xrefId |
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) |
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); |
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} |
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return $xref; |
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} |
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public function remove(Xref $xref) |
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{ |
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try { |
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$this->removeById($xref->getId()); |
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} catch (\Exception $e) { |
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if (strpos($e->getMessage(), $xref->getId())) { |
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throw new \Exception( |
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sprintf( |
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'Xref of type "%s" with location "%s" not in collection.', |
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$xref->getType(), |
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$xref->getLocation() |
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) |
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); |
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} |
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throw $e; |
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} |
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} |
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public function hasById($xrefId) |
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{ |
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foreach ($this->collection as $xref) { |
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if ($xref->getId() == $xrefId) { |
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return true; |
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} |
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} |
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return false; |
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} |
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public function has(Xref $xref) |
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{ |
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return $this->hasById($xref->getId()); |
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} |
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public function getById($xrefId) |
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{ |
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foreach ($this->collection as $xref) { |
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if ($xref->getId() == $xrefId) { |
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return $xref; |
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} |
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} |
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throw new \Exception(sprintf('Xref with Id "%s" not in collection.', $xrefId)); |
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} |
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public function parse($xrefs, $typeDelimiter, $overwrite = False, $ignore = True) |
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{ |
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if (!is_array($xrefs)) { |
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$xrefs = array($xrefs); |
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} |
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$parsed = array(); |
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foreach ($xrefs as $key => $value) { |
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$xref = Xref::makeFromDefinitionString($value, $typeDelimiter); |
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if ($this->has($xref)) { |
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if (!$ignore) { |
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throw new AlreadyRegisteredException( |
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sprintf( |
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'Not allowed to overwrite Xref of type "%s" with location "%s" already in collection.', |
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$xref->getType(), |
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$xref->getLocation() |
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) |
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); |
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} |
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if ($overwrite && (!$ignore)) { |
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$this->add($xref); |
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} |
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} else { |
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$this->add($xref); |
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} |
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$parsed[$key] = $xref; |
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} |
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return $parsed; |
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} |
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public function hasUnresolved() |
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{ |
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foreach($this->collection as $xref) { |
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if (!$xref->isResolved()) { |
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return true; |
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} |
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} |
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return false; |
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} |
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public function resolve($force = false) |
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{ |
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foreach($this->collection as $xref) { |
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$xref->resolve($force); |
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} |
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} |
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} |
liutec /
cfgtokenlib
