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swift-mirror/benchmark/single-source/StringDistance.swift

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Swift

//===--- StringEdits.swift ------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2022 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] = [
BenchmarkInfo(
name: "StringDistance.characters.mixed",
runFunction: { n in
run_characters(string: mixedString, ranges: mixedRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(mixedRanges) }),
BenchmarkInfo(
name: "StringDistance.scalars.mixed",
runFunction: { n in
run_scalars(string: mixedString, ranges: mixedRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(mixedRanges) }),
BenchmarkInfo(
name: "StringDistance.utf16.mixed",
runFunction: { n in
run_utf16(string: mixedString, ranges: mixedRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(mixedRanges) }),
BenchmarkInfo(
name: "StringDistance.utf8.mixed",
runFunction: { n in
run_utf8(string: mixedString, ranges: mixedRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(mixedRanges) }),
BenchmarkInfo(
name: "StringDistance.characters.ascii",
runFunction: { n in
run_characters(string: asciiString, ranges: asciiRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(asciiRanges) }),
BenchmarkInfo(
name: "StringDistance.scalars.ascii",
runFunction: { n in
run_scalars(string: asciiString, ranges: asciiRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(asciiRanges) }),
BenchmarkInfo(
name: "StringDistance.utf16.ascii",
runFunction: { n in
run_utf16(string: asciiString, ranges: asciiRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(asciiRanges) }),
BenchmarkInfo(
name: "StringDistance.utf8.ascii",
runFunction: { n in
run_utf8(string: asciiString, ranges: asciiRanges, n: n)
},
tags: [.api, .String],
setUpFunction: { blackHole(asciiRanges) }),
]
let mixedString = #"""
The powerful programming language that is also easy to learn.
손쉽게 학습할 수 있는 강력한 프로그래밍 언어.
🪙 A 🥞 short 🍰 piece 🫘 of 🌰 text 👨‍👨‍👧‍👧 with 👨‍👩‍👦 some 🚶🏽 emoji 🇺🇸🇨🇦 characters 🧈
some🔩times 🛺 placed 🎣 in 🥌 the 🆘 mid🔀dle 🇦🇶or🏁 around 🏳️‍🌈 a 🍇 w🍑o🥒r🥨d
Unicode is such fun!
U̷n̷i̷c̷o̴d̴e̷ ̶i̸s̷ ̸s̵u̵c̸h̷ ̸f̵u̷n̴!̵
U̴̡̲͋̾n̵̻̳͌ì̶̠̕c̴̭̈͘ǫ̷̯͋̊d̸͖̩̈̈́ḛ̴́ ̴̟͎͐̈i̴̦̓s̴̜̱͘ ̶̲̮̚s̶̙̞͘u̵͕̯̎̽c̵̛͕̜̓h̶̘̍̽ ̸̜̞̿f̵̤̽ṷ̴͇̎͘ń̷͓̒!̷͍̾̚
U̷̢̢̧̨̼̬̰̪͓̞̠͔̗̼̙͕͕̭̻̗̮̮̥̣͉̫͉̬̲̺͍̺͊̂ͅ\#
n̶̨̢̨̯͓̹̝̲̣̖̞̼̺̬̤̝̊̌́̑̋̋͜͝ͅ\#
ḭ̸̦̺̺͉̳͎́͑\#
c̵̛̘̥̮̙̥̟̘̝͙̤̮͉͔̭̺̺̅̀̽̒̽̏̊̆͒͌̂͌̌̓̈́̐̔̿̂͑͠͝͝ͅ\#
ö̶̱̠̱̤̙͚͖̳̜̰̹̖̣̻͎͉̞̫̬̯͕̝͔̝̟̘͔̙̪̭̲́̆̂͑̌͂̉̀̓́̏̎̋͗͛͆̌̽͌̄̎̚͝͝͝͝ͅ\#
d̶̨̨̡̡͙̟͉̱̗̝͙͍̮͍̘̮͔͑\#
e̶̢͕̦̜͔̘̘̝͈̪̖̺̥̺̹͉͎͈̫̯̯̻͑͑̿̽͂̀̽͋́̎̈́̈̿͆̿̒̈́̽̔̇͐͛̀̓͆̏̾̀̌̈́̆̽̕ͅ
"""#
let mixedRanges = (
generateRanges(for: mixedString, by: 1)
+ generateRanges(for: mixedString, by: 2)
+ generateRanges(for: mixedString, by: 4)
+ generateRanges(for: mixedString, by: 8)
+ generateRanges(for: mixedString, by: 16)
+ generateRanges(for: mixedString, by: 32)
+ generateRanges(for: mixedString, by: 64)
+ generateRanges(for: mixedString, by: 128)
+ generateRanges(for: mixedString, by: 256)
+ generateRanges(for: mixedString, by: 512))
let _asciiString = #"""
Swift is a high-performance system programming language. It has a clean
and modern syntax, offers seamless access to existing C and Objective-C code
and frameworks, and is memory safe by default.
Although inspired by Objective-C and many other languages, Swift is not itself
a C-derived language. As a complete and independent language, Swift packages
core features like flow control, data structures, and functions, with
high-level constructs like objects, protocols, closures, and generics. Swift
embraces modules, eliminating the need for headers and the code duplication
they entail.
Swift toolchains are created using the script
[build-toolchain](https://github.com/apple/swift/blob/main/utils/build-toolchain).
This script is used by swift.org's CI to produce snapshots and can allow for
one to locally reproduce such builds for development or distribution purposes.
A typical invocation looks like the following:
```
$ ./swift/utils/build-toolchain $BUNDLE_PREFIX
```
where ``$BUNDLE_PREFIX`` is a string that will be prepended to the build date
to give the bundle identifier of the toolchain's ``Info.plist``. For instance,
if ``$BUNDLE_PREFIX`` was ``com.example``, the toolchain produced will have
the bundle identifier ``com.example.YYYYMMDD``. It will be created in the
directory you run the script with a filename of the form:
``swift-LOCAL-YYYY-MM-DD-a-osx.tar.gz``.
"""#
let asciiString = String(repeating: _asciiString, count: 10)
let asciiRanges = (
generateRanges(for: asciiString, by: 1)
+ generateRanges(for: asciiString, by: 2)
+ generateRanges(for: asciiString, by: 4)
+ generateRanges(for: asciiString, by: 8)
+ generateRanges(for: asciiString, by: 16)
+ generateRanges(for: asciiString, by: 32)
+ generateRanges(for: asciiString, by: 64)
+ generateRanges(for: asciiString, by: 128)
+ generateRanges(for: asciiString, by: 256)
+ generateRanges(for: asciiString, by: 512))
func generateRanges(for string: String, by step: Int) -> [Range<String.Index>] {
var remaining = step
var i = string.startIndex
var last = i
var ranges: [Range<String.Index>] = []
while i < string.endIndex {
string.unicodeScalars.formIndex(after: &i)
remaining -= 1
if remaining == 0 {
ranges.append(last ..< i)
remaining = step
last = i
}
}
ranges.append(last ..< i)
return ranges
}
func run_characters(string: String, ranges: [Range<String.Index>], n: Int) {
var c = 0
for _ in 0 ..< n {
for r in ranges {
c += string.distance(from: r.lowerBound, to: r.upperBound)
}
}
blackHole(c)
}
func run_scalars(string: String, ranges: [Range<String.Index>], n: Int) {
var c = 0
for _ in 0 ..< n {
for r in ranges {
c += string.unicodeScalars.distance(from: r.lowerBound, to: r.upperBound)
}
}
blackHole(c)
}
func run_utf16(string: String, ranges: [Range<String.Index>], n: Int) {
var c = 0
for _ in 0 ..< n {
for r in ranges {
c += string.utf16.distance(from: r.lowerBound, to: r.upperBound)
}
}
blackHole(c)
}
func run_utf8(string: String, ranges: [Range<String.Index>], n: Int) {
var c = 0
for _ in 0 ..< n {
for r in ranges {
c += string.utf8.distance(from: r.lowerBound, to: r.upperBound)
}
}
blackHole(c)
}