| //===--- StringInterpolation.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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| import TestsUtils |
| |
| public let StringInterpolation = BenchmarkInfo( |
| name: "StringInterpolation", |
| runFunction: run_StringInterpolation, |
| tags: [.validation, .api, .String]) |
| |
| class RefTypePrintable : CustomStringConvertible { |
| var description: String { |
| return "01234567890123456789012345678901234567890123456789" |
| } |
| } |
| |
| @inline(never) |
| public func run_StringInterpolation(_ N: Int) { |
| let reps = 100 |
| let refResult = reps |
| let anInt: Int64 = 0x1234567812345678 |
| let aRefCountedObject = RefTypePrintable() |
| |
| for _ in 1...100*N { |
| var result = 0 |
| for _ in 1...reps { |
| let s = "\(anInt) abcdefdhijklmn \(aRefCountedObject) abcdefdhijklmn \u{01}" |
| let utf16 = s.utf16 |
| |
| // FIXME: if String is not stored as UTF-16 on this platform, then the |
| // following operation has a non-trivial cost and needs to be replaced |
| // with an operation on the native storage type. |
| result = result &+ Int(utf16[utf16.index(before: utf16.endIndex)]) |
| } |
| CheckResults(result == refResult) |
| } |
| } |
| |
