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<?php
namespace Wikimedia\Telemetry;
/**
* An unsampled span that does nothing and persists no data.
*
* @since 1.43
* @internal
*/
class NoopSpan implements SpanInterface {
private SpanContext $context;
private TracerState $tracerState;
public function __construct(
TracerState $tracerState,
SpanContext $context
) {
$this->tracerState = $tracerState;
$this->context = $context;
}
/** @inheritDoc */
public function getContext(): SpanContext {
return $this->context;
}
/** @inheritDoc */
public function setAttributes( array $attributes ): SpanInterface {
return $this;
}
/** @inheritDoc */
public function setSpanKind( int $spanKind ): SpanInterface {
return $this;
}
/** @inheritDoc */
public function setSpanStatus( int $status ): SpanInterface {
return $this;
}
/** @inheritDoc */
public function start( ?int $epochNanos = null ): SpanInterface {
return $this;
}
/** @inheritDoc */
public function end( ?int $epochNanos = null ): void {
// no-op
}
/** @inheritDoc */
public function activate(): SpanInterface {
$this->tracerState->activateSpan( $this->context );
return $this;
}
/** @inheritDoc */
public function deactivate(): SpanInterface {
$this->tracerState->deactivateSpan( $this->context );
return $this;
}
}
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