File: noimplicitcopy.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 (62 lines) | stat: -rw-r--r-- 1,307 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
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
// RUN: %target-run-simple-swift( -Xfrontend -enable-experimental-move-only ) | %FileCheck %s

// A small soundness check.

// REQUIRES: executable_test

import StdlibUnittest

var Tests = TestSuite("TrivialMoveOnly")
defer { runAllTests() }

func print2(_ x: Int) {
    print("printInt: \(x + 1)")
}

// CHECK: printInt: 11
// CHECK: printInt: 5
Tests.test("printInt") {
    @_noImplicitCopy let x: Int = 5
    // Infix operators where we pass values as guaranteed parameters.
    print2(x + x)
    print("printInt: \(x)")
}

// CHECK: printInt: 11
// CHECK: printInt: 6
// CHECK: printIntArg: 5
func printIntArg(@_noImplicitCopy _ x: Int) {
    print2(x + x)
    print2(x)
    print("printIntArg: \(x)")
}
Tests.test("printIntArg") {
    printIntArg(5)
}

// CHECK: printInt: 11
// CHECK: printInt: 6
// CHECK: printIntOwnedArg: 5
func printIntOwnedArg(@_noImplicitCopy _ x: __owned Int) {
    print2(x + x)
    print2(x)
    print("printIntOwnedArg: \(x)")
}
Tests.test("printIntOwnedArg") {
    printIntOwnedArg(5)
}

class Klass {
    var i = 8
    func increment() { i += 1 }
}

// CHECK: printKlass: main.Klass
// CHECK: printKlass: 10
Tests.test("printKlass") {
    @_noImplicitCopy let x = Klass()
    x.increment()
    x.increment()
    print("printKlass: \(x)")
    print("printKlass: \(x.i)")
}