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fec48f9e63
When importing a C header in the C++ language mode, Clang/Swift treat C structs as C++ structs. Currently Swift synthesizes a default initializer that zero-initializes the backing memory of the struct for C structs, but not for C++ structs. This is causing issues in existing projects that use C libraries and rely on having the default initializer available in Swift. This change enables the synthesis of a default initializer for C++ structs. Since many C++ structs are not designed to be initialized this way, the initializer is marked as deprecated in Swift. rdar://109727620
56 lines
1.9 KiB
Swift
56 lines
1.9 KiB
Swift
// RUN: %target-swift-ide-test -print-module -module-to-print=Constructors -I %S/Inputs/ -source-filename=x -enable-experimental-cxx-interop | %FileCheck %s
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// CHECK: struct ExplicitDefaultConstructor {
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// CHECK-NEXT: init()
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// CHECK-NEXT: var x: Int32
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// CHECK-NEXT: }
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// CHECK-NEXT: struct ImplicitDefaultConstructor {
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// CHECK-NEXT: init()
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// CHECK-NEXT: init(x: Int32)
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// CHECK-NEXT: var x: Int32
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// CHECK-NEXT: }
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// CHECK-NEXT: struct MemberOfClassType {
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// CHECK-NEXT: init()
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// CHECK-NEXT: init(member: ImplicitDefaultConstructor)
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// CHECK-NEXT: var member: ImplicitDefaultConstructor
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// CHECK-NEXT: }
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// CHECK-NEXT: struct DefaultConstructorDeleted {
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// CHECK-NEXT: init(a: UnsafeMutablePointer<Int32>)
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// CHECK-NEXT: var a: UnsafeMutablePointer<Int32>
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// CHECK-NEXT: }
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// CHECK-NEXT: struct ConstructorWithParam {
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// CHECK-NEXT: init(_ val: Int32)
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// CHECK-NEXT: @available(*, deprecated, message
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// CHECK-NEXT: init()
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// CHECK-NEXT: var x: Int32
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// CHECK-NEXT: }
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// CHECK-NEXT: struct CopyAndMoveConstructor {
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// CHECK-NEXT: @available(*, deprecated, message
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// CHECK-NEXT: init()
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// CHECK-NEXT: }
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// CHECK-NEXT: struct Base {
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// CHECK-NEXT: init()
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// CHECK-NEXT: }
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// CHECK-NEXT: struct ArgType {
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// CHECK-NEXT: init()
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// CHECK-NEXT: init(i: Int32)
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// CHECK-NEXT: var i: Int32
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// CHECK-NEXT: }
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// CHECK-NEXT: struct HasVirtualBase {
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// CHECK-NEXT: init(_ Arg: ArgType)
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// CHECK-NEXT: var i: Int32
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// CHECK-NEXT: }
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// CHECK: struct TemplatedConstructor {
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// CHECK-NEXT: init<T>(_ value: T)
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// CHECK-NEXT: @available(*, deprecated, message
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// CHECK-NEXT: init()
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// CHECK-NEXT: var value: ArgType
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// CHECK-NEXT: }
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// CHECK: struct TemplatedConstructorWithExtraArg {
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// CHECK-NEXT: init<T>(_: Int32, _ value: T)
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// CHECK-NEXT: init<T>(_ value: T, _: Int32)
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// CHECK-NEXT: init<T, U>(_ value: T, _ other: U)
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// CHECK-NEXT: @available(*, deprecated, message
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// CHECK-NEXT: init()
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// CHECK-NEXT: }
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