DevirtualizeProtocolComposition.swift

//===--- DevirtualizeProtocolComposition.swift -------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2019 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

publicletbenchmarks=[
BenchmarkInfo(name:"DevirtualizeProtocolComposition", runFunction: run_DevirtualizeProtocolComposition, tags:[.validation,.api]),
]

protocolPingable{func ping()->Int; func pong()->Int}

publicclassGame<T>{
func length()->Int{return10}
}

publicclassPingPong:Game<String>{}

extensionPingPong:Pingable{
func ping()->Int{return1}
func pong()->Int{return2}
}

func playGame<T>(_ x:Game<T>&Pingable)->Int{
varsum=0
for_in0..<x.length(){
 sum += x.ping()+ x.pong()
}
return sum
}

@inline(never)
publicfunc run_DevirtualizeProtocolComposition(n:Int){
for_in0..<n *20_000{
blackHole(playGame(PingPong()))
}
}