| //===--- NSDictionaryCastToSwift.swift ------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Performance benchmark for casting NSDictionary to Swift Dictionary |
| // rdar://problem/18539730 |
| // |
| // Description: |
| // Create an NSDictionary instance and cast it to [String: NSObject]. |
| import Foundation |
| import TestsUtils |
| |
| public let NSDictionaryCastToSwift = BenchmarkInfo( |
| name: "NSDictionaryCastToSwift", |
| runFunction: run_NSDictionaryCastToSwift, |
| tags: [.validation, .api, .Dictionary, .bridging]) |
| |
| @inline(never) |
| public func run_NSDictionaryCastToSwift(_ N: Int) { |
| #if _runtime(_ObjC) |
| let NSDict = NSDictionary() |
| var swiftDict = [String: NSObject]() |
| for _ in 1...10000*N { |
| swiftDict = NSDict as! [String: NSObject] |
| if !swiftDict.isEmpty { |
| break |
| } |
| } |
| CheckResults(swiftDict.isEmpty) |
| #endif |
| } |
