NoopTracer.php

<?php

declare (strict_types=1);
namespace OpenTelemetry\API\Trace;

use OpenTelemetry\Context\Context;
final class NoopTracer implements TracerInterface {
    private static ?self $instance = null;
    public static function getInstance() : self {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    public function spanBuilder(string $spanName) : SpanBuilderInterface {
        return new NoopSpanBuilder(Context::storage());
    }
    public function isEnabled() : bool {
        return false;
    }

}