default_span.h - mozsearch

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// Copyright The OpenTelemetry Authors

// SPDX-License-Identifier: Apache-2.0

#pragma once

#include "opentelemetry/common/attribute_value.h"

#include "opentelemetry/nostd/string_view.h"

#include "opentelemetry/trace/span.h"

#include "opentelemetry/trace/span_context.h"

#include "opentelemetry/version.h"

OPENTELEMETRY_BEGIN_NAMESPACE

namespace trace

/**

 * DefaultSpan provides a non-operational Span that propagates

 * the tracer context by wrapping it inside the Span object.

*/

class DefaultSpan : public Span

public:

  ~DefaultSpan() noexcept override = default;

  // Returns an invalid span.

  static DefaultSpan GetInvalid() { return DefaultSpan(SpanContext::GetInvalid()); }

  trace::SpanContext GetContext() const noexcept override { return span_context_; }

  bool IsRecording() const noexcept override { return false; }

  void SetAttribute(nostd::string_view /* key */,

                    const common::AttributeValue & /* value */) noexcept override

{}

  void AddEvent(nostd::string_view /* name */) noexcept override {}

  void AddEvent(nostd::string_view /* name */,

                common::SystemTimestamp /* timestamp */) noexcept override

{}

  void AddEvent(nostd::string_view /* name */,

                const common::KeyValueIterable & /* attributes */) noexcept override

{}

  void AddEvent(nostd::string_view /* name */,

                common::SystemTimestamp /* timestamp */,

                const common::KeyValueIterable & /* attributes */) noexcept override

{}

#if OPENTELEMETRY_ABI_VERSION_NO >= 2

  void AddLink(const SpanContext & /* target */,

               const common::KeyValueIterable & /* attrs */) noexcept override

{}

  void AddLinks(const SpanContextKeyValueIterable & /* links */) noexcept override {}

#endif

  void SetStatus(StatusCode /* status */, nostd::string_view /* description */) noexcept override {}

  void UpdateName(nostd::string_view /* name */) noexcept override {}

  void End(const EndSpanOptions & /* options */) noexcept override {}

  nostd::string_view ToString() const noexcept { return "DefaultSpan"; }

  DefaultSpan(SpanContext span_context) noexcept : span_context_(std::move(span_context)) {}

  // movable and copiable

  DefaultSpan(const DefaultSpan &other) noexcept : span_context_(other.span_context_) {}

  DefaultSpan &operator=(const DefaultSpan &other) noexcept

    if (this == &other)

      return *this;

    span_context_ = other.span_context_;

    return *this;

  DefaultSpan(DefaultSpan &&other) noexcept : span_context_(std::move(other.span_context_)) {}

  DefaultSpan &operator=(DefaultSpan &&other) noexcept

    if (this == &other)

      return *this;

    span_context_ = std::move(other.span_context_);

    return *this;

private:

  SpanContext span_context_;

};

}  // namespace trace

OPENTELEMETRY_END_NAMESPACE