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//===--- MirrorTest.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
//
//===----------------------------------------------------------------------===//
// This test measures performance of Mirror and related things.
import TestsUtils
public let benchmarks = [
BenchmarkInfo(
name: "TypeName",
runFunction: run_TypeName,
tags: [.api, .String]),
BenchmarkInfo(
name: "MirrorDefault",
runFunction: run_MirrorDefault,
tags: [.api, .String]),
]
struct S1 { var s: String; var d: Double }
struct S2 { var i: Int; var a: [Range<Int>] }
class C { var i: Int = 0 }
class D: C { var s: String = "" }
enum E {
case a,b(Int)
}
struct G<T> { var t: T }
class H<T>: C { var t: T; init(_ t: T) { self.t = t }}
public func run_MirrorDefault(scale: Int) {
let n = 100*scale
let s1 = S1(s: "foo", d: 3.14)
let s2 = S2(i: 42, a: [0..<4])
let c = C()
let d = D()
let e = E.a
let f = E.b(99)
let g = G(t: 12.3)
let h = H<[Int]>([1,2,3])
var str = ""
for _ in 0..<n {
str = "\(s1),\(s2),\(c),\(d),\(e),\(f),\(g),\(h)"
blackHole(str)
}
check(str ==
"S1(s: \"foo\", d: 3.14),S2(i: 42, a: [Range(0..<4)]),MirrorTest.C,MirrorTest.D,a,b(99),G<Double>(t: 12.3),MirrorTest.H<Swift.Array<Swift.Int>>")
}
func typename<T>(of: T.Type) -> String {
"\(T.self)"
}
public func run_TypeName(scale: Int) {
let n = 1_000*scale
var a: [String] = []
a.reserveCapacity(16)
for _ in 0..<n {
a = []
a.removeAll(keepingCapacity: true)
a.append(typename(of: S1.self))
a.append(typename(of: S2.self))
a.append(typename(of: C.self))
a.append(typename(of: D.self))
a.append(typename(of: G<S1>.self))
a.append(typename(of: G<C>.self))
a.append(typename(of: G<String>.self))
a.append(typename(of: H<Int>.self))
a.append(typename(of: [S1].self))
a.append(typename(of: [G<Int>].self))
a.append(typename(of: [H<S1>].self))
a.append(typename(of: S1?.self))
a.append(typename(of: C?.self))
blackHole(a)
}
let expected = ["S1",
"S2",
"C",
"D",
"G<S1>",
"G<C>",
"G<String>",
"H<Int>",
"Array<S1>",
"Array<G<Int>>",
"Array<H<S1>>",
"Optional<S1>",
"Optional<C>",
]
check(a == expected)
}
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