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
#ifndef UPB_MINI_TABLE_FIELD_H_
#define UPB_MINI_TABLE_FIELD_H_
#include "upb/base/descriptor_constants.h"
#include "upb/mini_table/internal/field.h"
#include "upb/mini_table/internal/message.h"
#include "upb/mini_table/internal/sub.h"
// Must be last.
#include "upb/port/def.inc"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct upb_MiniTableField upb_MiniTableField;
UPB_API_INLINE upb_FieldType
upb_MiniTableField_Type(const upb_MiniTableField* field) {
if (field->mode & kUpb_LabelFlags_IsAlternate) {
if (field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Int32) {
return kUpb_FieldType_Enum;
} else if (field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Bytes) {
return kUpb_FieldType_String;
} else {
UPB_ASSERT(false);
}
}
return (upb_FieldType)field->UPB_PRIVATE(descriptortype);
}
UPB_API_INLINE upb_CType upb_MiniTableField_CType(const upb_MiniTableField* f) {
return upb_FieldType_CType(upb_MiniTableField_Type(f));
}
UPB_API_INLINE bool upb_MiniTableField_IsClosedEnum(
const upb_MiniTableField* field) {
return field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Enum;
}
UPB_API_INLINE bool upb_MiniTableField_IsExtension(
const upb_MiniTableField* field) {
return field->mode & kUpb_LabelFlags_IsExtension;
}
UPB_API_INLINE bool upb_MiniTableField_IsRepeatedOrMap(
const upb_MiniTableField* field) {
// This works because upb_FieldMode has no value 3.
return !(field->mode & kUpb_FieldMode_Scalar);
}
UPB_API_INLINE bool upb_MiniTableField_IsSubMessage(
const upb_MiniTableField* field) {
return field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Message ||
field->UPB_PRIVATE(descriptortype) == kUpb_FieldType_Group;
}
UPB_API_INLINE bool upb_MiniTableField_HasPresence(
const upb_MiniTableField* field) {
if (upb_MiniTableField_IsExtension(field)) {
return !upb_MiniTableField_IsRepeatedOrMap(field);
} else {
return field->presence != 0;
}
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#include "upb/port/undef.inc"
#endif /* UPB_MINI_TABLE_FIELD_H_ */