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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
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
@import Foundation;
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#define MAKE_ENUM(name) \
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typedef NS_ENUM(NSInteger, name) { \
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name##WaterMelon, \
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name##Orange \
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} \
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MAKE_ENUM(MyCoolEnum);
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typedef NS_ENUM(NSInteger, ALL_CAPS_ENUM) {
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ENUM_CASE_ONE,
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ENUM_CASE_TWO
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};
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typedef NS_ENUM(NSInteger, ALL_CAPS_ENUM2) {
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ALL_CAPS_CASE_ONE,
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ALL_CAPS_CASE_TWO
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};
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typedef NS_ENUM(NSInteger, SomeRandomEnum) {
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SomeRandomA,
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SomeRandomB
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};
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typedef NS_ENUM(NSInteger, EnumWithAwkwardDeprecations) {
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EnumWithAwkwardNormalCase1,
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EnumWithAwkwardNormalCase2,
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EnumWithAwkward2BitProblems __attribute__((deprecated)) = EnumWithAwkwardNormalCase1,
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};
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enum __attribute__((enum_extensibility(open))) EnumViaAttribute {
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EnumViaAttributeFirst = 1,
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EnumViaAttributeSecond = 2
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};
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// From <AudioUnit/AudioComponent.h>
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// The interesting feature of this enum is that the common prefix before
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// taking the enum name itself into account extends past the underscore.
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typedef CF_OPTIONS(UInt32, AudioComponentInstantiationOptions) {
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kAudioComponentInstantiation_LoadOutOfProcess = 1,
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kAudioComponentInstantiation_LoadInProcess = 2
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};
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// ...whereas this one has a pluralized name before the underscore prefix.
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typedef CF_OPTIONS(UInt32, AudioComponentFlags) {
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kAudioComponentFlag_Unsearchable = 1,
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kAudioComponentFlag_SandboxSafe = 2,
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kAudioComponentFlag_IsV3AudioUnit = 4
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};
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// ...and this one has both complications.
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typedef CF_OPTIONS(UInt32, FakeAudioComponentFlags) {
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kFakeAudioComponentFlag_LoadOutOfProcess = 1,
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kFakeAudioComponentFlag_LoadInProcess = 2,
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};
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// From <AudioUnit/AudioUnitProperties.h>
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// This enum has a digit immediately after the leading 'k'.
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typedef CF_ENUM(UInt32, AU3DMixerAttenuationCurve) {
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k3DMixerAttenuationCurve_Power = 0,
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k3DMixerAttenuationCurve_Exponential = 1,
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k3DMixerAttenuationCurve_Inverse = 2,
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k3DMixerAttenuationCurve_Linear = 3
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};
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typedef CF_OPTIONS(UInt32, EmptySet1) {
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kEmptySet1DefaultOptions __attribute__((swift_name("default")))
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};
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typedef CF_OPTIONS(UInt32, EmptySet2) {
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kEmptySet2None __attribute__((swift_name("none")))
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};
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typedef CF_OPTIONS(UInt32, EmptySet3) {
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kEmptySet3None __attribute__((swift_name("None")))
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};
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enum __attribute__((flag_enum)) OptionsViaAttribute {
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OptionsViaAttributeFirst = 1,
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OptionsViaAttributeSecond = 2
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};
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