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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. 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
#import <Foundation/Foundation.h>
#import "GPBArray.h"
#import "GPBUnknownFields.h"
@class GPBUnknownFields;
NS_ASSUME_NONNULL_BEGIN
typedef NS_ENUM(uint8_t, GPBUnknownFieldType) {
GPBUnknownFieldTypeVarint,
GPBUnknownFieldTypeFixed32,
GPBUnknownFieldTypeFixed64,
GPBUnknownFieldTypeLengthDelimited, // Length prefixed
GPBUnknownFieldTypeGroup, // Tag delimited
};
/**
* Store an unknown field. These are used in conjunction with GPBUnknownFields.
**/
__attribute__((objc_subclassing_restricted))
@interface GPBUnknownField : NSObject<NSCopying>
/** The field number the data is stored under. */
@property(nonatomic, readonly, assign) int32_t number;
/** The type of the field. */
@property(nonatomic, readonly, assign) GPBUnknownFieldType type;
/**
* Fetch the varint value.
*
* It is a programming error to call this when the `type` is not a varint.
*/
@property(nonatomic, readonly, assign) uint64_t varint;
/**
* Fetch the fixed32 value.
*
* It is a programming error to call this when the `type` is not a fixed32.
*/
@property(nonatomic, readonly, assign) uint32_t fixed32;
/**
* Fetch the fixed64 value.
*
* It is a programming error to call this when the `type` is not a fixed64.
*/
@property(nonatomic, readonly, assign) uint64_t fixed64;
/**
* Fetch the length delimited (length prefixed) value.
*
* It is a programming error to call this when the `type` is not a length
* delimited.
*/
@property(nonatomic, readonly, strong, nonnull) NSData *lengthDelimited;
/**
* Fetch the group (tag delimited) value.
*
* It is a programming error to call this when the `type` is not a group.
*/
@property(nonatomic, readonly, strong, nonnull) GPBUnknownFields *group;
@end
NS_ASSUME_NONNULL_END
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