Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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/*
* Copyright (c) 2009-2021, Google LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Google LLC nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Users should include array.h or map.h instead.
// IWYU pragma: private, include "third_party/upb/upb/collections/array.h"
#ifndef UPB_MESSAGE_VALUE_H_
#define UPB_MESSAGE_VALUE_H_
#include "upb/base/string_view.h"
#include "upb/mini_table/types.h"
// Must be last.
#include "upb/port/def.inc"
typedef struct upb_Array upb_Array;
typedef struct upb_Map upb_Map;
typedef union {
bool bool_val;
float float_val;
double double_val;
int32_t int32_val;
int64_t int64_val;
uint32_t uint32_val;
uint64_t uint64_val;
const upb_Array* array_val;
const upb_Map* map_val;
const upb_Message* msg_val;
upb_StringView str_val;
} upb_MessageValue;
typedef union {
upb_Array* array;
upb_Map* map;
upb_Message* msg;
} upb_MutableMessageValue;
#include "upb/port/undef.inc"
#endif /* UPB_MESSAGE_VALUE_H_ */