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Timofey Solomko
49 lines
2.0 KiB
Swift
49 lines
2.0 KiB
Swift
// Copyright (c) 2021 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 while unarchiving an XZ archive.
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It may indicate that either archive is damaged or it might not be XZ archive at all.
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*/
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public enum XZError: Error {
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/// Either 'magic' number in header or footer isn't equal to a predefined value.
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case wrongMagic
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/**
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One of the special fields in archive has an incorrect value,
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which can mean both damaged archive or that archive uses a newer version of XZ format.
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*/
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case wrongField
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/// Checksum of one of the fields of archive doesn't match the value stored in archive.
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case wrongInfoCRC
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/// Filter used in archive is unsupported.
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case wrongFilterID
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/**
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Archive uses SHA-256 checksum which is unsupported.
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- Note: This error is never thrown and will be removed in the next major update.
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*/
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case checkTypeSHA256
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/**
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Either size of decompressed data isn't equal to the one specified in archive or
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amount of compressed data read is different from the one stored in archive.
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*/
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case wrongDataSize
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/**
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Computed checksum of uncompressed data doesn't match the value stored in the archive.
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Associated value of the error contains already decompressed data:
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+ if `unarchive` function was called then associated array will have only one element
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with combined data for all already decompressed streams, including the one with mismatching checksum.
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+ if `splitUnarchive` function was called then associated array will have an element
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for each already decompressed stream, including the one with mismatching checksum.
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*/
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case wrongCheck([Data])
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/// Padding (null-bytes appended to an archive's structure) is incorrect.
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case wrongPadding
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/// Either null byte encountered or exceeded maximum amount bytes while reading multi byte number.
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case multiByteIntegerError
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}
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