File: throw-typed.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 (97 lines) | stat: -rw-r--r-- 1,987 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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
// RUN: %target-run-simple-swift(-enable-experimental-feature Embedded -parse-as-library -runtime-compatibility-version none -wmo -Xfrontend -disable-objc-interop) | %FileCheck %s
// RUN: %target-run-simple-swift(-O -enable-experimental-feature Embedded -parse-as-library -runtime-compatibility-version none -wmo -Xfrontend -disable-objc-interop) | %FileCheck %s
// RUN: %target-run-simple-swift(-Osize -enable-experimental-feature Embedded -parse-as-library -runtime-compatibility-version none -wmo -Xfrontend -disable-objc-interop) | %FileCheck %s

// REQUIRES: swift_in_compiler
// REQUIRES: executable_test
// REQUIRES: optimized_stdlib
// REQUIRES: OS=macosx || OS=linux-gnu

public enum MyError : Error, Equatable {
  case a
  case b
  case c(Int)
}

extension Int : Error {}

public func throwing(which: Int) throws(MyError) -> Int {
  if which == 0 {
    throw MyError.a
  } else if which == 1 {
    throw MyError.b
  } else if which == 2 {
    throw MyError.c(42)
  }

  return 123
}

public func throwing2() throws(Int) {
  throw 42
}

public func catching() {
  do {
    try throwing(which: 0)
  } catch let e as MyError {
    print(e == .a ? "OK1" : "???")
  }

  do {
    try throwing(which: 1)
  } catch let e as MyError where e == .b {
    print(e == .b ? "OK2" : "???")
  } catch {
    print("???")
  }

  do {
    try throwing(which: 2)
  } catch let e as MyError where e == .b {
    print("???")
  } catch {
    print("OK3")
  }

  do {
    try throwing(which: 2)
  } catch let e as MyError {
    if case .c(let n) = e {
      print(n == 42 ? "OK4" : "???") 
    } else {
      print("???")
    }
  } catch {
    print("???")
  }

  do {
    try throwing(which: 3)
    print("OK5")
  } catch {
    print("???")
  }

  do {
    try throwing2()
  } catch {
    print(error == 42 ? "OK6" : "???")
  }
}

@main
struct Main {
  static func main() {
    catching()
  }
}

// CHECK: OK1
// CHECK: OK2
// CHECK: OK3
// CHECK: OK4
// CHECK: OK5
// CHECK: OK6

// CHECK-NOT: ???