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.
// https://developers.google.com/protocol-buffers/
///
// 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
#ifndef UPB_MINI_TABLE_INTERNAL_SIZE_LOG2_H_
#define UPB_MINI_TABLE_INTERNAL_SIZE_LOG2_H_
#include <stddef.h>
#include <stdint.h>
#include "upb/base/descriptor_constants.h"
// Must be last.
#include "upb/port/def.inc"
#ifdef __cplusplus
extern "C" {
#endif
// Return the log2 of the storage size in bytes for a upb_CType
UPB_INLINE int UPB_PRIVATE(_upb_CType_SizeLg2)(upb_CType c_type) {
static const int8_t size[] = {
0, // kUpb_CType_Bool
2, // kUpb_CType_Float
2, // kUpb_CType_Int32
2, // kUpb_CType_UInt32
2, // kUpb_CType_Enum
UPB_SIZE(2, 3), // kUpb_CType_Message
3, // kUpb_CType_Double
3, // kUpb_CType_Int64
3, // kUpb_CType_UInt64
UPB_SIZE(3, 4), // kUpb_CType_String
UPB_SIZE(3, 4), // kUpb_CType_Bytes
};
// -1 here because the enum is one-based but the table is zero-based.
return size[c_type - 1];
}
// Return the log2 of the storage size in bytes for a upb_FieldType
UPB_INLINE int UPB_PRIVATE(_upb_FieldType_SizeLg2)(upb_FieldType field_type) {
static const int8_t size[] = {
3, // kUpb_FieldType_Double
2, // kUpb_FieldType_Float
3, // kUpb_FieldType_Int64
3, // kUpb_FieldType_UInt64
2, // kUpb_FieldType_Int32
3, // kUpb_FieldType_Fixed64
2, // kUpb_FieldType_Fixed32
0, // kUpb_FieldType_Bool
UPB_SIZE(3, 4), // kUpb_FieldType_String
UPB_SIZE(2, 3), // kUpb_FieldType_Group
UPB_SIZE(2, 3), // kUpb_FieldType_Message
UPB_SIZE(3, 4), // kUpb_FieldType_Bytes
2, // kUpb_FieldType_UInt32
2, // kUpb_FieldType_Enum
2, // kUpb_FieldType_SFixed32
3, // kUpb_FieldType_SFixed64
2, // kUpb_FieldType_SInt32
3, // kUpb_FieldType_SInt64
};
// -1 here because the enum is one-based but the table is zero-based.
return size[field_type - 1];
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#include "upb/port/undef.inc"
#endif /* UPB_MINI_TABLE_INTERNAL_SIZE_LOG2_H_ */