File: set_coerce.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 (22 lines) | stat: -rw-r--r-- 470 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
 
// RUN: %target-typecheck-verify-swift

class C : Hashable {
	var x = 0

  func hash(into hasher: inout Hasher) {
    hasher.combine(x)
  }
}

func == (x: C, y: C) -> Bool { return true }


class D : C {}

var setC = Set<C>()
var setD = Set<D>()

// Test set upcasts
setC = setD
setD = setC // expected-error{{cannot assign value of type 'Set<C>' to type 'Set<D>'}}
// expected-note@-1 {{arguments to generic parameter 'Element' ('C' and 'D') are expected to be equal}}