/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef DDLogValue_h_
#define DDLogValue_h_

#include "DDLogObject.h"
#include "MediaResult.h"
#include "mozilla/Variant.h"
#include "nsString.h"

namespace mozilla {

// Placeholder when no value is needed.
struct DDNoValue {};

// Value capturing a range (typically an offset and a number of bytes in a
// resource).
struct DDRange {
  const int64_t mOffset;
  const int64_t mBytes;
  DDRange(int64_t aOffset, int64_t aBytes) : mOffset(aOffset), mBytes(aBytes) {}
};

// Value associated with a log message.
using DDLogValue = Variant<DDNoValue, DDLogObject,
                           const char*,  // Assumed to be a literal string.
                           const nsCString, bool, int8_t, uint8_t, int16_t,
                           uint16_t, int32_t, uint32_t, int64_t, uint64_t,
                           double, DDRange, nsresult, MediaResult>;

void AppendToString(const DDLogValue& aValue, nsCString& aString);

class JSONWriter;
void ToJSON(const DDLogValue& aValue, JSONWriter& aJSONWriter,
            const char* aPropertyName);

}  // namespace mozilla

#endif  // DDLogValue_h_