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a03c40cb2c
These new Clang attributes identify whether an enum is intended to represent an option set or not, and whether the set of cases listed in the enum declaration is exhaustive. (Swift doesn't currently have a closed/open distinction for enums, so treat any C enum with enum_extensibility as a proper closed Swift enum, like we do with NS_ENUM.) Enums with neither attribute will continue to be imported as unique types. rdar://problem/28476618
27 lines
840 B
C
27 lines
840 B
C
@import Foundation;
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#define SWIFT_COMPILE_NAME(X) __attribute__((swift_name(X)))
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#define SWIFT_ENUM(_type, _name) enum _name : _type _name; enum __attribute__((enum_extensibility(open))) SWIFT_ENUM_EXTRA _name : _type
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typedef SWIFT_ENUM(NSInteger, Normal) {
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NormalOne = 0,
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NormalTwo,
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NormalThree
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};
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#define SWIFT_ENUM_NAMED(_type, _name, _swiftName) enum _name : _type _name SWIFT_COMPILE_NAME(_swiftName); enum SWIFT_COMPILE_NAME(_swiftName) __attribute__((enum_extensibility(open))) SWIFT_ENUM_EXTRA _name : _type
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typedef SWIFT_ENUM_NAMED(NSInteger, ObjCEnum, "SwiftEnum") {
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ObjCEnumOne = 0,
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ObjCEnumTwo,
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ObjCEnumThree
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};
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typedef SWIFT_ENUM_NAMED(NSInteger, ObjCEnumTwo, "SwiftEnumTwo") {
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// the following shouldn't have their prefixes stripped
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SwiftEnumTwoA,
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SwiftEnumTwoB,
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SwiftEnumTwoC
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};
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