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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Foundation/Foundation.h>
#import "FIRStorageConstants.h"
NS_ASSUME_NONNULL_BEGIN
@class FIRStorageMetadata;
@class FIRStorageReference;
@class FIRStorageTask;
/**
* FIRStorageTaskSnapshot represents an immutable view of a task.
* A Snapshot contains a task, storage reference, metadata (if it exists),
* progress, and an error (if one occurred).
*/
NS_SWIFT_NAME(StorageTaskSnapshot)
@interface FIRStorageTaskSnapshot : NSObject
/**
* Subclass of FIRStorageTask this snapshot represents.
*/
@property(readonly, copy, nonatomic) __kindof FIRStorageTask *task;
/**
* Metadata returned by the task, or nil if no metadata returned.
*/
@property(readonly, copy, nonatomic, nullable) FIRStorageMetadata *metadata;
/**
* FIRStorageReference this task is operates on.
*/
@property(readonly, copy, nonatomic) FIRStorageReference *reference;
/**
* NSProgress object which tracks the progess of an upload or download.
*/
@property(readonly, strong, nonatomic, nullable) NSProgress *progress;
/**
* Error during task execution, or nil if no error occurred.
*/
@property(readonly, copy, nonatomic, nullable) NSError *error;
/**
* Status of the task.
*/
@property(readonly, nonatomic) FIRStorageTaskStatus status;
@end
NS_ASSUME_NONNULL_END
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