class NoopSpanBuilder

final class NoopSpanBuilder implements SpanBuilderInterface {
    private ContextInterface|false|null $parentContext = null;
    public function __construct(ContextStorageInterface $contextStorage) {
    }
    public function setParent(ContextInterface|false|null $context) : SpanBuilderInterface {
        $this->parentContext = $context;
        return $this;
    }
    public function addLink(SpanContextInterface $context, iterable $attributes = []) : SpanBuilderInterface {
        return $this;
    }
    public function setAttribute(string $key, mixed $value) : SpanBuilderInterface {
        return $this;
    }
    public function setAttributes(iterable $attributes) : SpanBuilderInterface {
        return $this;
    }
    public function setStartTimestamp(int $timestampNanos) : SpanBuilderInterface {
        return $this;
    }
    public function setSpanKind(int $spanKind) : SpanBuilderInterface {
        return $this;
    }
    public function startSpan() : SpanInterface {
        $parentContext = Context::resolve($this->parentContext, $this->contextStorage);
        $span = Span::fromContext($parentContext);
        if ($span->isRecording()) {
            $span = Span::wrap($span->getContext());
        }
        return $span;
    }

}