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<?php |
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namespace Onoi\CallbackContainer; |
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/** |
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* @license GNU GPL v2+ |
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* @since 2.0 |
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*/ |
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class BacktraceSniffer { |
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/** |
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* @var integer |
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*/ |
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private $depth = 1; |
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/** |
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* @since 2.0 |
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* |
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* @param integer $depth |
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*/ |
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public function __construct( $depth = 1 ) { |
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$this->depth = $depth; |
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} |
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/** |
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* @see MediaWiki::wfGetCaller |
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* @since 2.0 |
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* |
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* @return $string |
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*/ |
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public function getCaller( $depth = null ) { |
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$depth = $depth === null ? $this->depth : $depth; |
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$backtrace = $this->getBackTrace( $depth + 1 ); |
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if ( isset( $backtrace[$depth] ) ) { |
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return $this->doFormatStackFrame( $backtrace[$depth] ); |
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} |
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return 'unknown'; |
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} |
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/** |
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* @see MediaWiki::wfGetCallers |
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* @since 2.0 |
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* |
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* @return array |
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*/ |
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public function getCallers( $depth = null ) { |
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$depth = $depth === null ? $this->depth : $depth; |
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$backtrace = array_reverse( $this->getBackTrace() ); |
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if ( !$depth || $depth > count( $backtrace ) - 1 ) { |
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$depth = count( $backtrace ) - 1; |
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} |
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$backtrace = array_slice( $backtrace, -$depth - 1, $depth ); |
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return array_map( array( $this, 'doFormatStackFrame' ), $backtrace ); |
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} |
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private function doFormatStackFrame( $frame ) { |
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return isset( $frame['class'] ) ? $frame['class'] . '::' . $frame['function'] : $frame['function']; |
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} |
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private function getBackTrace( $limit = 0 ) { |
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static $disabled = null; |
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if ( $disabled || ( $disabled = !function_exists( 'debug_backtrace' ) ) === true ) { |
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return array(); |
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} |
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if ( $limit && version_compare( PHP_VERSION, '5.4.0', '>=' ) ) { |
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return array_slice( debug_backtrace( DEBUG_BACKTRACE_PROVIDE_OBJECT, $limit + 1 ), 1 ); |
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} else { |
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return array_slice( debug_backtrace(), 1 ); |
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} |
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} |
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} |
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This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types.