File: issue-58069_1.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 (17 lines) | stat: -rw-r--r-- 506 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
// RUN: %target-typecheck-verify-swift %s

// https://github.com/apple/swift/issues/58069

protocol Collection {
  associatedtype SubSequence: Collection
}

protocol BidirectionalCollection: Collection where SubSequence: BidirectionalCollection {}

struct Slice<Base : Collection> : Collection {
  typealias SubSequence = Slice<Base>
}

extension Slice: BidirectionalCollection where Base : BidirectionalCollection {}

protocol SlicedCollection: BidirectionalCollection where SubSequence == Slice<Self> {}