File: option_set.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (29 lines) | stat: -rw-r--r-- 849 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
 
// REQUIRES: swift_swift_parser, executable_test

// RUN: %target-run-simple-swift(-Xfrontend -plugin-path -Xfrontend %swift-plugin-dir -emit-tbd -emit-tbd-path %t.tbd)

import Swift

@attached(member, names: named(RawValue), named(rawValue), named(`init`), arbitrary)
@attached(extension, conformances: OptionSet)
public macro OptionSet<RawType>() =
  #externalMacro(module: "SwiftMacros", type: "OptionSetMacro")

@OptionSet<UInt8>
struct ShippingOptions {
  private enum Options: Int {
    case nextDay
    case secondDay
    case priority
    case standard
  }

  static let express: ShippingOptions = [.nextDay, .secondDay]
  static let all: ShippingOptions = [.express, .priority, .standard]
}

let options = ShippingOptions.express
assert(options.contains(.nextDay))
assert(options.contains(.secondDay))
assert(!options.contains(.standard))