mirror of
https://github.com/tsolomko/SWCompression.git
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Timofey Solomko
39eea7c42a
Overtime size of source files became unmanageble, so it is better to split them. Also internal zip structure have been renamed to include word zip.
34 lines
1.3 KiB
Swift
34 lines
1.3 KiB
Swift
// Copyright (c) 2017 Timofey Solomko
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// Licensed under MIT License
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//
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// See LICENSE for license information
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import Foundation
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/**
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Represents an error, which happened during processing GZip archive.
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It may indicate that either archive is damaged or it might not be GZip archive at all.
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*/
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public enum GzipError: Error {
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/// First two bytes ('magic' number) of archive isn't 31 and 139.
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case wrongMagic
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/// Compression method used in archive is different from Deflate, which is the only supported one.
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case wrongCompressionMethod
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/**
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One of the reserved fields in archive has an unexpected value, which can also mean (apart from damaged archive),
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that archive uses a newer version of GZip format.
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*/
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case wrongFlags
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/// Computed CRC of archive's header doesn't match the value stored in archive.
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case wrongHeaderCRC
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/**
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Computed checksum of uncompressed data doesn't match the value stored in archive.
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Associated value of the error contains already decompressed data.
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*/
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case wrongCRC(Data)
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/// Computed 'isize' didn't match the value stored in the archive.
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case wrongISize
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/// Either specified file name or comment cannot be encoded using ISO Latin-1 encoding.
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case cannotEncodeISOLatin1
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}
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