Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
// Users should include array.h or map.h instead.
// IWYU pragma: private, include "upb/message/array.h"
#ifndef UPB_MESSAGE_VALUE_H_
#define UPB_MESSAGE_VALUE_H_
#include <stdint.h>
#include <string.h>
#include "upb/base/string_view.h"
// Must be last.
#include "upb/port/def.inc"
#ifdef __cplusplus
extern "C" {
#endif
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 struct upb_Array* array_val;
const struct upb_Map* map_val;
const struct upb_Message* msg_val;
upb_StringView str_val;
// EXPERIMENTAL: A tagged upb_Message*. Users must use this instead of
// msg_val if unlinked sub-messages may possibly be in use. See the
// documentation in kUpb_DecodeOption_ExperimentalAllowUnlinked for more
// information.
uintptr_t tagged_msg_val; // upb_TaggedMessagePtr
} upb_MessageValue;
UPB_API_INLINE upb_MessageValue upb_MessageValue_Zero(void) {
upb_MessageValue zero;
memset(&zero, 0, sizeof(zero));
return zero;
}
typedef union {
struct upb_Array* array;
struct upb_Map* map;
struct upb_Message* msg;
} upb_MutableMessageValue;
UPB_API_INLINE upb_MutableMessageValue upb_MutableMessageValue_Zero(void) {
upb_MutableMessageValue zero;
memset(&zero, 0, sizeof(zero));
return zero;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#include "upb/port/undef.inc"
#endif /* UPB_MESSAGE_VALUE_H_ */