File: switch-ownership.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 (58 lines) | stat: -rw-r--r-- 1,813 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
// RUN: %target-swift-frontend -typecheck -dump-ast %s | %FileCheck %s

struct A {
    static func ~=(pattern: B, subject: A) -> Bool { return true }
    static func ~=(pattern: C, subject: borrowing A) -> Bool { return true }
    static func ~=(pattern: D, subject: consuming A) -> Bool { return true }
}
struct B { }
struct C { }
struct D { }
struct E { }
struct F { }
struct G { }

func ~=(pattern: E, subject: A) -> Bool { return true }
func ~=(pattern: F, subject: borrowing A) -> Bool { return true }
func ~=(pattern: G, subject: consuming A) -> Bool { return true }

// CHECK-LABEL: (func_decl{{.*}} "test(value:)"
func test(value: A) {
    // CHECK: (switch_stmt
    switch value {
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=borrowing
    case B():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=borrowing
    case C():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=consuming
    case D():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=borrowing
    case E():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=borrowing
    case F():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item ownership=borrowing
    // CHECK:     (pattern_expr type="A" ownership=consuming
    case G():
        break
    // CHECK: (case_stmt
    // CHECK:   (case_label_item default ownership=borrowing
    default:
        break
    }
}