File: rdar66234725.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (28 lines) | stat: -rw-r--r-- 553 bytes parent folder | download | duplicates (2) 
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
 
// RUN: %target-typecheck-verify-swift

protocol P {}

protocol Func {
  associatedtype Result

  init()

  mutating func update<D: P>(data: D)

  func finalize() -> Result
}

struct S<T: P, F: Func> {
  var arr: [T]

  func test() -> [F.Result] {
    return stride(from: 0, to: arr.endIndex, by: 2).map {
      (arr[$0], $0 < arr.index(before: arr.endIndex) ? arr[$0.advanced(by: 1)] : nil) // Ok
    }.map { (lhs, rhs) -> F.Result in
      var fun = F()
      fun.update(data: lhs)
      fun.update(data: rhs!)
      return fun.finalize()
    }
  }
}