protobuf/upb/mini_table/field.h

/*
 * Copyright (c) 2009-2022, 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
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 */

#ifndef UPB_MINI_TABLE_FIELD_H_
#define UPB_MINI_TABLE_FIELD_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) {
  switch (upb_MiniTableField_Type(f)) {
    case kUpb_FieldType_Double:
      return kUpb_CType_Double;
    case kUpb_FieldType_Float:
      return kUpb_CType_Float;
    case kUpb_FieldType_Int64:
    case kUpb_FieldType_SInt64:
    case kUpb_FieldType_SFixed64:
      return kUpb_CType_Int64;
    case kUpb_FieldType_Int32:
    case kUpb_FieldType_SFixed32:
    case kUpb_FieldType_SInt32:
      return kUpb_CType_Int32;
    case kUpb_FieldType_UInt64:
    case kUpb_FieldType_Fixed64:
      return kUpb_CType_UInt64;
    case kUpb_FieldType_UInt32:
    case kUpb_FieldType_Fixed32:
      return kUpb_CType_UInt32;
    case kUpb_FieldType_Enum:
      return kUpb_CType_Enum;
    case kUpb_FieldType_Bool:
      return kUpb_CType_Bool;
    case kUpb_FieldType_String:
      return kUpb_CType_String;
    case kUpb_FieldType_Bytes:
      return kUpb_CType_Bytes;
    case kUpb_FieldType_Group:
    case kUpb_FieldType_Message:
      return kUpb_CType_Message;
  }
  UPB_UNREACHABLE();
}

UPB_API_INLINE bool upb_MiniTableField_IsExtension(
    const upb_MiniTableField* field) {
  return field->mode & kUpb_LabelFlags_IsExtension;
}

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_HasPresence(
    const upb_MiniTableField* field) {
  if (upb_MiniTableField_IsExtension(field)) {
    return !upb_IsRepeatedOrMap(field);
  } else {
    return field->presence != 0;
  }
}

#ifdef __cplusplus
} /* extern "C" */
#endif

#include "upb/port/undef.inc"

#endif /* UPB_MINI_TABLE_FIELD_H_ */