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Timofey Solomko
38 lines
1.3 KiB
Swift
38 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 BZip2 decompression.
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It may indicate that either data is damaged or it might not be compressed with BZip2 at all.
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*/
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public enum BZip2Error: Error {
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/// 'Magic' number is not 0x425a.
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case wrongMagic
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// TODO: Rename to `wrongVersion` in 4.0.
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/// Compression method is not type 'h' (not Huffman).
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case wrongCompressionMethod
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/// Unsupported block size (not from '0' to '9').
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case wrongBlockSize
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/// Unsupported block type (is neither 'pi' nor 'sqrt(pi)').
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case wrongBlockType
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/// Block is randomized.
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case randomizedBlock
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/// Wrong number of Huffman tables/groups (should be between 2 and 6).
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case wrongHuffmanGroups
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/// Selector is greater than the total number of Huffman tables/groups.
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case wrongSelector
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/// Wrong code of Huffman length (should be between 0 and 20).
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case wrongHuffmanLengthCode
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/// Symbol wasn't found in Huffman tree.
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case symbolNotFound
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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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}
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