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AK: Add Traits for Enums
Enums can be hashed as their underlying integral type. This allows enum keys in hash maps etc.
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@ -6,6 +6,7 @@
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#pragma once
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#include <AK/Concepts.h>
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#include <AK/Forward.h>
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#include <AK/HashFunctions.h>
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@ -41,6 +42,12 @@ requires(IsPointer<T>) struct Traits<T> : public GenericTraits<T> {
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static constexpr bool is_trivial() { return true; }
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};
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template<Enum T>
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struct Traits<T> : public GenericTraits<T> {
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static unsigned hash(T value) { return Traits<UnderlyingType<T>>::hash(to_underlying(value)); }
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static constexpr bool is_trivial() { return Traits<UnderlyingType<T>>::is_trivial(); }
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};
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}
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using AK::GenericTraits;
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