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steipete/NullabilityMacros.h

Created February 25, 2015 23:22
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Want nullability right away? This will degrade gracefully until you can drop Xcode 6.1/Xcode 6.2.
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NullabilityMacros.h
// Xcode 6.3 defines new language features to declare nullability
#if __has_feature(nullability)
#define PSPDF_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin")
#define PSPDF_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end")
#define ps_nullable nullable
#define ps_nonnull nonnull
#define ps_null_unspecified null_unspecified
#define ps_null_resettable null_resettable
#define __ps_nullable __nullable
#define __ps_nonnull __nonnull
#define __ps_null_unspecified __null_unspecified
#else
#define PSPDF_ASSUME_NONNULL_BEGIN
#define PSPDF_ASSUME_NONNULL_END
#define ps_nullable
#define ps_nonnull
#define ps_null_unspecified
#define ps_null_resettable
#define __ps_nullable
#define __ps_nonnull
#define __ps_null_unspecified
#endif
@samjarman
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In xcode 7, I get Macro name is a reserved identifier with the macros starting with __. Any ideas?

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