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//===--- DictionaryGroup.swift --------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 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
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import TestsUtils
public let benchmarks = [
BenchmarkInfo(name: "DictionaryGroup",
runFunction: run_DictionaryGroup,
tags: [.validation, .api, .Dictionary]),
BenchmarkInfo(name: "DictionaryGroupOfObjects",
runFunction: run_DictionaryGroupOfObjects,
tags: [.validation, .api, .Dictionary],
setUpFunction: { blackHole(inputObjects) },
tearDownFunction: { inputObjects = nil },
legacyFactor: 9
),
]
@inline(never)
public func run_DictionaryGroup(_ n: Int) {
for _ in 1...n {
let dict = Dictionary(grouping: 0..<10_000, by: { $0 % 10 })
check(dict.count == 10)
check(dict[0]!.count == 1_000)
}
}
class Box<T : Hashable> : Hashable {
var value: T
init(_ v: T) {
value = v
}
func hash(into hasher: inout Hasher) {
hasher.combine(value)
}
static func ==(lhs: Box, rhs: Box) -> Bool {
return lhs.value == rhs.value
}
}
var inputObjects: [Box<Int>]! = (0..<1_000).lazy.map { Box($0) }
@inline(never)
public func run_DictionaryGroupOfObjects(_ n: Int) {
let objects: [Box<Int>] = inputObjects
for _ in 1...n {
let dict = Dictionary(grouping: objects, by: { Box($0.value % 10) })
check(dict.count == 10)
check(dict[Box(0)]!.count == 100)
}
}
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