blob: b1d60f325f7d2089c0f747563cb54ac83c4f6822 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Concepts.h>
#include <AK/Forward.h>
#include <AK/HashFunctions.h>
#include <AK/StringHash.h>
#include <string.h>
namespace AK {
template<typename T>
struct GenericTraits {
using PeekType = T;
using ConstPeekType = T;
static constexpr bool is_trivial() { return false; }
static constexpr bool equals(const T& a, const T& b) { return a == b; }
};
template<typename T>
struct Traits : public GenericTraits<T> {
};
template<typename T>
requires(IsIntegral<T>) struct Traits<T> : public GenericTraits<T> {
static constexpr bool is_trivial() { return true; }
static constexpr unsigned hash(T value)
{
if constexpr (sizeof(T) < 8)
return int_hash(value);
else
return u64_hash(value);
}
};
template<typename T>
requires(IsPointer<T> && !Detail::IsPointerOfType<char, T>) struct Traits<T> : public GenericTraits<T> {
static unsigned hash(T p) { return ptr_hash((FlatPtr)p); }
static constexpr bool is_trivial() { return true; }
};
template<Enum T>
struct Traits<T> : public GenericTraits<T> {
static unsigned hash(T value) { return Traits<UnderlyingType<T>>::hash(to_underlying(value)); }
static constexpr bool is_trivial() { return Traits<UnderlyingType<T>>::is_trivial(); }
};
template<typename T>
requires(Detail::IsPointerOfType<char, T>) struct Traits<T> : public GenericTraits<T> {
static unsigned hash(T const value) { return string_hash(value, strlen(value)); }
static constexpr bool equals(T const a, T const b) { return strcmp(a, b); }
static constexpr bool is_trivial() { return true; }
};
}
using AK::GenericTraits;
using AK::Traits;
|
