File: moveonly_failable_init.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; 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 (29 lines) | stat: -rw-r--r-- 1,036 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
22
23
24
25
26
27
28
29
 
// RUN: %target-swift-emit-sil -module-name test %s | %FileCheck %s --enable-var-scope

struct MoveWithDeinit: ~Copyable {
  deinit { }
}

struct MyType: ~Copyable {
  var handle: MoveWithDeinit

  // CHECK-LABEL: sil hidden @$s4test6MyTypeV6handleACSgAA14MoveWithDeinitVSg_tcfC : $@convention(method) (@owned Optional<MoveWithDeinit>, @thin MyType.Type) -> @owned Optional<MyType>
  // CHECK: bb0(%0 : $Optional<MoveWithDeinit>, %1 : $@thin MyType.Type):
  init?(handle: consuming MoveWithDeinit?) {
    // CHECK: switch_enum [[SUBJECT:%.*]] : $Optional<MoveWithDeinit>, case #Optional.some!enumelt: bb2, case #Optional.none!enumelt: bb1
    guard let handle = consume handle else {
      // CHECK: bb1:
      // CHECK: [[NONE:%.*]] = enum $Optional<MyType>, #Optional.none!enumelt
      // CHECK: br bb3([[NONE]] : $Optional<MyType>)
      return nil
    }

    // CHECK: bb2([[WRAPPED:%.*]] : $MoveWithDeinit):
    // CHECK: br bb3
    self.handle = handle
  }
}

func test() -> MyType? {
  return MyType(handle: MoveWithDeinit())
}