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<?php
declare(strict_types=1);
namespace OpenTracing;
final class NoopTracer implements Tracer
{
/**
* {@inheritdoc}
*/
public function getActiveSpan(): ?Span
{
return new NoopSpan();
}
/**
* {@inheritdoc}
*/
public function getScopeManager(): ScopeManager
{
return new NoopScopeManager();
}
/**
* {@inheritdoc}
*/
public function startSpan(string $operationName, $options = []): Span
{
return new NoopSpan();
}
/**
* {@inheritdoc}
*/
public function startActiveSpan(string $operationName, $options = []): Scope
{
return new NoopScope();
}
/**
* {@inheritdoc}
*/
public function inject(SpanContext $spanContext, string $format, &$carrier): void
{
}
/**
* {@inheritdoc}
*/
public function extract(string $format, $carrier): ?SpanContext
{
return new NoopSpanContext();
}
/**
* {@inheritdoc}
*/
public function flush(): void
{
}
}
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