96 lines
3.2 KiB
Swift
Executable File
96 lines
3.2 KiB
Swift
Executable File
// MIT License
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//
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// Copyright (c) 2017 Milen Dzhumerov
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import Foundation
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public enum HeaderMapError: LocalizedError {
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case unencodableString
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}
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public enum HeaderMapParseError: LocalizedError {
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case missingDataHeader
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case unknownFileMagic
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case invalidVersion(expected: UInt16, found: UInt16)
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case reservedValueMismatch(expected: UInt16, found: UInt16)
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case outOfBoundsStringSectionOffset
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case bucketCountNotPowerOf2(found: UInt32)
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case bucketsSectionOverflow
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case invalidStringSectionOffset
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}
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public enum HeaderMapCreateError: LocalizedError {
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case invalidStringSectionOffset
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case noEntries
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case stringWithoutOffsetInTable
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case hashTableFull
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case unhashableKey
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}
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extension HeaderMapError {
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public var errorDescription: String? {
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switch self {
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case .unencodableString:
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return "String cannot be encoded"
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}
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}
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}
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extension HeaderMapParseError {
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public var errorDescription: String? {
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switch self {
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case .missingDataHeader:
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return "File is missing a header section"
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case .unknownFileMagic:
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return "File magic is unknown"
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case .invalidVersion(let expected, let found):
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return "Found invalid version \(found), expected \(expected)"
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case .reservedValueMismatch(let expected, let found):
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return "Found invalid reserved value \(found), expected \(expected)"
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case .outOfBoundsStringSectionOffset:
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return "String offset is out of bounds"
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case .bucketCountNotPowerOf2(let buckets):
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return "Bucket count is not a power of 2, found \(buckets) buckets"
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case .bucketsSectionOverflow:
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return "Bucket section overflows"
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case .invalidStringSectionOffset:
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return "The string section offset is invalid"
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}
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}
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}
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extension HeaderMapCreateError {
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public var errorDescription: String? {
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switch self {
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case .invalidStringSectionOffset:
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return "The string section offset is invalid"
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case .noEntries:
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return "Header map needs to contain at least one entry"
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case .stringWithoutOffsetInTable:
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return "String not present in string section"
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case .hashTableFull:
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return "Header map is full"
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case .unhashableKey:
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return "Key cannot be hashed"
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}
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}
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}
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