File: Random.swift

package info (click to toggle)
swiftlang 6.1.3-4
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,644 kB
  • sloc: cpp: 9,901,738; ansic: 2,201,433; 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 (21 lines) | stat: -rw-r--r-- 981 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
 
//===--- Random.swift -----------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 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
//
//===----------------------------------------------------------------------===//
// RUN: %target-typecheck-verify-swift

struct Jawn { }

// Me, sobbing: "Look, you can't just point at an empty struct and call it a
// RandomNumberGenerator."
// Swift 5.4, pointing at this Jawn: "RNG."
extension Jawn: RandomNumberGenerator { }
// expected-error@-1 {{type 'Jawn' does not conform to protocol 'RandomNumberGenerator'}}
// expected-error@-2 {{unavailable instance method 'next()' was used to satisfy a requirement of protocol 'RandomNumberGenerator'}}