mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-21 10:05:32 +00:00
b816bd0806
Also, the PeekType of smart pointers is now T* instead of const T*. Note: This commit doesn't compile, it breaks HashMap::get() for some types. Fixed in the next commit.
88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Forward.h>
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#include <AK/HashFunctions.h>
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namespace AK {
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template<typename T>
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struct GenericTraits {
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using PeekType = T;
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using ConstPeekType = T;
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static constexpr bool is_trivial() { return false; }
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static constexpr bool equals(const T& a, const T& b) { return a == b; }
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};
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template<typename T>
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struct Traits : public GenericTraits<T> {
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};
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template<>
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struct Traits<int> : public GenericTraits<int> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(int i) { return int_hash(i); }
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};
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template<>
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struct Traits<char> : public GenericTraits<char> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(char c) { return int_hash(c); }
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};
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template<>
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struct Traits<i16> : public GenericTraits<i16> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(i16 i) { return int_hash(i); }
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};
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template<>
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struct Traits<i64> : public GenericTraits<i64> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(i64 i) { return u64_hash(i); }
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};
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template<>
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struct Traits<unsigned> : public GenericTraits<unsigned> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(unsigned u) { return int_hash(u); }
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};
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template<>
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struct Traits<u8> : public GenericTraits<u8> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(u8 u) { return int_hash(u); }
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};
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template<>
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struct Traits<u16> : public GenericTraits<u16> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(u16 u) { return int_hash(u); }
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};
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template<>
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struct Traits<u64> : public GenericTraits<u64> {
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static constexpr bool is_trivial() { return true; }
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static unsigned hash(u64 u) { return u64_hash(u); }
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};
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template<typename T>
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struct Traits<T*> : public GenericTraits<T*> {
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static unsigned hash(const T* p)
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{
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return int_hash((unsigned)(__PTRDIFF_TYPE__)p);
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}
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static constexpr bool is_trivial() { return true; }
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static bool equals(const T* a, const T* b) { return a == b; }
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};
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}
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using AK::GenericTraits;
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using AK::Traits;
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