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Bug 1119199 - Rewrite HashFunctions with variadic templates. r=waldo

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This commit is contained in:
Xidorn Quan 2015-01-13 10:48:10 +11:00
parent 95e222e3a6
commit 9ec69f4904
1 changed files with 6 additions and 55 deletions
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61
mfbt/HashFunctions.h
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@ -187,32 +187,11 @@ AddToHash(uint32_t aHash, uintptr_t aA)
return detail::AddUintptrToHash<sizeof(uintptr_t)>(aHash, aA);
}
template<typename A, typename B>
template<typename A, typename... Args>
MOZ_WARN_UNUSED_RESULT uint32_t
AddToHash(uint32_t aHash, A aA, B aB)
AddToHash(uint32_t aHash, A aArg, Args... aArgs)
{
return AddToHash(AddToHash(aHash, aA), aB);
}
template<typename A, typename B, typename C>
MOZ_WARN_UNUSED_RESULT uint32_t
AddToHash(uint32_t aHash, A aA, B aB, C aC)
{
return AddToHash(AddToHash(aHash, aA, aB), aC);
}
template<typename A, typename B, typename C, typename D>
MOZ_WARN_UNUSED_RESULT uint32_t
AddToHash(uint32_t aHash, A aA, B aB, C aC, D aD)
{
return AddToHash(AddToHash(aHash, aA, aB, aC), aD);
}
template<typename A, typename B, typename C, typename D, typename E>
MOZ_WARN_UNUSED_RESULT uint32_t
AddToHash(uint32_t aHash, A aA, B aB, C aC, D aD, E aE)
{
return AddToHash(AddToHash(aHash, aA, aB, aC, aD), aE);
return AddToHash(AddToHash(aHash, aArg), aArgs...);
}
/**
@ -222,39 +201,11 @@ AddToHash(uint32_t aHash, A aA, B aB, C aC, D aD, E aE)
* much better than calling AddToHash(x, y), because AddToHash(x, y) assumes
* that x has already been hashed.
*/
template<typename A>
template<typename... Args>
MOZ_WARN_UNUSED_RESULT inline uint32_t
HashGeneric(A aA)
HashGeneric(Args... aArgs)
{
return AddToHash(0, aA);
}
template<typename A, typename B>
MOZ_WARN_UNUSED_RESULT inline uint32_t
HashGeneric(A aA, B aB)
{
return AddToHash(0, aA, aB);
}
template<typename A, typename B, typename C>
MOZ_WARN_UNUSED_RESULT inline uint32_t
HashGeneric(A aA, B aB, C aC)
{
return AddToHash(0, aA, aB, aC);
}
template<typename A, typename B, typename C, typename D>
MOZ_WARN_UNUSED_RESULT inline uint32_t
HashGeneric(A aA, B aB, C aC, D aD)
{
return AddToHash(0, aA, aB, aC, aD);
}
template<typename A, typename B, typename C, typename D, typename E>
MOZ_WARN_UNUSED_RESULT inline uint32_t
HashGeneric(A aA, B aB, C aC, D aD, E aE)
{
return AddToHash(0, aA, aB, aC, aD, aE);
return AddToHash(0, aArgs...);
}
namespace detail {