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Convert naming of hash helpers to AS namespace

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This commit is contained in:
Levi McCallum 2015-11-30 06:53:50 -08:00
parent 82848d6c23
commit cd78bcce99
3 changed files with 16 additions and 16 deletions
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6
AsyncDisplayKit/ASEqualityHashHelpers.mm
View File

@ -15,12 +15,12 @@
#import <stdio.h> #import <stdio.h>
#import <string> #import <string>
NSUInteger CKIntegerArrayHash(const NSUInteger *subhashes, NSUInteger count) NSUInteger ASIntegerArrayHash(const NSUInteger *subhashes, NSUInteger count)
{ {
uint64_t result = subhashes[0]; uint64_t result = subhashes[0];
for (int ii = 1; ii < count; ++ii) { for (int ii = 1; ii < count; ++ii) {
result = CKHashCombine(result, subhashes[ii]); result = ASHashCombine(result, subhashes[ii]);
} }
return CKHash64ToNative(result); return ASHash64ToNative(result);
} }

24
AsyncDisplayKit/TextKit/ASEqualityHashHelpers.h
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@ -16,7 +16,7 @@
// This is the Hash128to64 function from Google's cityhash (available // This is the Hash128to64 function from Google's cityhash (available
// under the MIT License). We use it to reduce multiple 64 bit hashes // under the MIT License). We use it to reduce multiple 64 bit hashes
// into a single hash. // into a single hash.
inline uint64_t CKHashCombine(const uint64_t upper, const uint64_t lower) { inline uint64_t ASHashCombine(const uint64_t upper, const uint64_t lower) {
// Murmur-inspired hashing. // Murmur-inspired hashing.
const uint64_t kMul = 0x9ddfea08eb382d69ULL; const uint64_t kMul = 0x9ddfea08eb382d69ULL;
uint64_t a = (lower ^ upper) * kMul; uint64_t a = (lower ^ upper) * kMul;
@ -28,13 +28,13 @@ inline uint64_t CKHashCombine(const uint64_t upper, const uint64_t lower) {
} }
#if __LP64__ #if __LP64__
inline size_t CKHash64ToNative(uint64_t key) { inline size_t ASHash64ToNative(uint64_t key) {
return key; return key;
} }
#else #else
// Thomas Wang downscaling hash function // Thomas Wang downscaling hash function
inline size_t CKHash64ToNative(uint64_t key) { inline size_t ASHash64ToNative(uint64_t key) {
key = (~key) + (key << 18); key = (~key) + (key << 18);
key = key ^ (key >> 31); key = key ^ (key >> 31);
key = key * 21; key = key * 21;
@ -45,9 +45,9 @@ inline size_t CKHash64ToNative(uint64_t key) {
} }
#endif #endif
NSUInteger CKIntegerArrayHash(const NSUInteger *subhashes, NSUInteger count); NSUInteger ASIntegerArrayHash(const NSUInteger *subhashes, NSUInteger count);
namespace CK { namespace AS {
// Default is not an ObjC class // Default is not an ObjC class
template<typename T, typename V = bool> template<typename T, typename V = bool>
struct is_objc_class : std::false_type { }; struct is_objc_class : std::false_type { };
@ -56,7 +56,7 @@ namespace CK {
template<typename T> template<typename T>
struct is_objc_class<T, typename std::enable_if<std::is_convertible<T, id>::value, bool>::type> : std::true_type { }; struct is_objc_class<T, typename std::enable_if<std::is_convertible<T, id>::value, bool>::type> : std::true_type { };
// CKUtils::hash<T>()(value) -> either std::hash<T> if c++ or [o hash] if ObjC object. // ASUtils::hash<T>()(value) -> either std::hash<T> if c++ or [o hash] if ObjC object.
template <typename T, typename Enable = void> struct hash; template <typename T, typename Enable = void> struct hash;
// For non-objc types, defer to std::hash // For non-objc types, defer to std::hash
@ -91,7 +91,7 @@ namespace CK {
}; };
namespace CKTupleOperations namespace ASTupleOperations
{ {
// Recursive case (hash up to Index) // Recursive case (hash up to Index)
template <class Tuple, size_t Index = std::tuple_size<Tuple>::value - 1> template <class Tuple, size_t Index = std::tuple_size<Tuple>::value - 1>
@ -101,8 +101,8 @@ namespace CKTupleOperations
{ {
size_t prev = _hash_helper<Tuple, Index-1>::hash(tuple); size_t prev = _hash_helper<Tuple, Index-1>::hash(tuple);
using TypeForIndex = typename std::tuple_element<Index,Tuple>::type; using TypeForIndex = typename std::tuple_element<Index,Tuple>::type;
size_t thisHash = CK::hash<TypeForIndex>()(std::get<Index>(tuple)); size_t thisHash = AS::hash<TypeForIndex>()(std::get<Index>(tuple));
return CKHashCombine(prev, thisHash); return ASHashCombine(prev, thisHash);
} }
}; };
@ -113,7 +113,7 @@ namespace CKTupleOperations
static size_t hash(Tuple const& tuple) static size_t hash(Tuple const& tuple)
{ {
using TypeForIndex = typename std::tuple_element<0,Tuple>::type; using TypeForIndex = typename std::tuple_element<0,Tuple>::type;
return CK::hash<TypeForIndex>()(std::get<0>(tuple)); return AS::hash<TypeForIndex>()(std::get<0>(tuple));
} }
}; };
@ -127,7 +127,7 @@ namespace CKTupleOperations
using TypeForIndex = typename std::tuple_element<Index,Tuple>::type; using TypeForIndex = typename std::tuple_element<Index,Tuple>::type;
auto aValue = std::get<Index>(a); auto aValue = std::get<Index>(a);
auto bValue = std::get<Index>(b); auto bValue = std::get<Index>(b);
return prev && CK::is_equal<TypeForIndex>()(aValue, bValue); return prev && AS::is_equal<TypeForIndex>()(aValue, bValue);
} }
}; };
@ -140,7 +140,7 @@ namespace CKTupleOperations
using TypeForIndex = typename std::tuple_element<0,Tuple>::type; using TypeForIndex = typename std::tuple_element<0,Tuple>::type;
auto& aValue = std::get<0>(a); auto& aValue = std::get<0>(a);
auto& bValue = std::get<0>(b); auto& bValue = std::get<0>(b);
return CK::is_equal<TypeForIndex>()(aValue, bValue); return AS::is_equal<TypeForIndex>()(aValue, bValue);
} }
}; };

2
AsyncDisplayKit/TextKit/ASTextKitAttributes.mm
View File

@ -33,5 +33,5 @@ size_t ASTextKitAttributes::hash() const
std::hash<CGFloat>()(shadowOpacity), std::hash<CGFloat>()(shadowOpacity),
std::hash<CGFloat>()(shadowRadius), std::hash<CGFloat>()(shadowRadius),
}; };
return CKIntegerArrayHash(subhashes, sizeof(subhashes) / sizeof(subhashes[0])); return ASIntegerArrayHash(subhashes, sizeof(subhashes) / sizeof(subhashes[0]));
} }