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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Collections open source project
//
// Copyright (c) 2021 - 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
extension _HashTable.Bucket: CustomStringConvertible {
// A textual representation of this instance.
public var description: String { "Bucket(@\(offset))"}
}
extension _UnsafeHashTable {
internal func debugOccupiedCount() -> Int {
var count = 0
var it = bucketIterator(startingAt: Bucket(offset: 0))
repeat {
if it.isOccupied {
count += 1
}
it.advance()
} while it.currentBucket.offset != 0
return count
}
internal func debugLoadFactor() -> Double {
return Double(debugOccupiedCount()) / Double(bucketCount)
}
internal func debugContents() -> [Int?] {
var result: [Int?] = []
result.reserveCapacity(bucketCount)
var it = bucketIterator(startingAt: Bucket(offset: 0))
repeat {
result.append(it.currentValue)
it.advance()
} while it.currentBucket.offset != 0
return result
}
}
extension _UnsafeHashTable.BucketIterator: CustomStringConvertible {
@usableFromInline
var description: String {
func pad(_ s: String, to length: Int, by padding: Character = " ") -> String {
let c = s.count
guard c < length else { return s }
return String(repeating: padding, count: length - c) + s
}
let offset = pad(String(_currentBucket.offset), to: 4)
let value: String
if let v = currentValue {
value = pad(String(v), to: 4)
} else {
value = " nil"
}
let remainingBits = pad(String(_nextBits, radix: 2), to: _remainingBitCount, by: "0")
return "BucketIterator(scale: \(_scale), bucket: \(offset), value: \(value), bits: \(remainingBits) (\(_remainingBitCount) bits))"
}
}
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