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Noncopyable types were prevented from having failable initializers because `Optional` itself didn't support noncopyable types. Now `Optional` does, so lift this restriction and add a test.
30 lines
1.0 KiB
Swift
30 lines
1.0 KiB
Swift
// RUN: %target-swift-emit-sil -module-name test %s | %FileCheck %s --enable-var-scope
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struct MoveWithDeinit: ~Copyable {
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deinit { }
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}
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struct MyType: ~Copyable {
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var handle: MoveWithDeinit
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// CHECK-LABEL: sil hidden @$s4test6MyTypeV6handleACSgAA14MoveWithDeinitVSg_tcfC : $@convention(method) (@owned Optional<MoveWithDeinit>, @thin MyType.Type) -> @owned Optional<MyType>
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// CHECK: bb0(%0 : $Optional<MoveWithDeinit>, %1 : $@thin MyType.Type):
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init?(handle: consuming MoveWithDeinit?) {
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// CHECK: switch_enum [[SUBJECT:%.*]] : $Optional<MoveWithDeinit>, case #Optional.some!enumelt: bb2, case #Optional.none!enumelt: bb1
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guard let handle = consume handle else {
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// CHECK: bb1:
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// CHECK: [[NONE:%.*]] = enum $Optional<MyType>, #Optional.none!enumelt
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// CHECK: br bb3([[NONE]] : $Optional<MyType>)
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return nil
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}
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// CHECK: bb2([[WRAPPED:%.*]] : $MoveWithDeinit):
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// CHECK: br bb3
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self.handle = handle
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}
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}
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func test() -> MyType? {
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return MyType(handle: MoveWithDeinit())
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}
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