9.2/includes/opentelemetry/common/attribute_value.h

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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
 
#pragma once
 
#include <cstdint>
 
#include "opentelemetry/nostd/span.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/nostd/variant.h"
#include "opentelemetry/version.h"
 
OPENTELEMETRY_BEGIN_NAMESPACE
namespace common
{
using AttributeValue =
    nostd::variant<bool,
                   int32_t,
                   int64_t,
                   uint32_t,
                   double,
                   const char *,
                   nostd::string_view,
                   nostd::span<const bool>,
                   nostd::span<const int32_t>,
                   nostd::span<const int64_t>,
                   nostd::span<const uint32_t>,
                   nostd::span<const double>,
                   nostd::span<const nostd::string_view>,
                   // Not currently supported by the specification, but reserved for future use.
                   // Added to provide support for all primitive C++ types.
                   uint64_t,
                   // Not currently supported by the specification, but reserved for future use.
                   // Added to provide support for all primitive C++ types.
                   nostd::span<const uint64_t>,
                   nostd::span<const uint8_t>>;
 
enum AttributeType
{
  kTypeBool,
  kTypeInt,
  kTypeInt64,
  kTypeUInt,
  kTypeDouble,
  kTypeCString,
  kTypeString,
  kTypeSpanBool,
  kTypeSpanInt,
  kTypeSpanInt64,
  kTypeSpanUInt,
  kTypeSpanDouble,
  kTypeSpanString,
  kTypeUInt64,
  kTypeSpanUInt64,
  kTypeSpanByte
};
 
}  // namespace common
OPENTELEMETRY_END_NAMESPACE