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AK: Define our own concept of "trivially serializable"

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While at it, rename the `read_trivial_value` and `write_trivial_value`
functions to `read_value` and `write_value` respectively, since we'll
add compatibility for non-trivial types down the line.
This commit is contained in:
Tim Schumacher 2023-01-14 21:13:29 +01:00 • committed by Tim Flynn
parent 6777cb0975
commit d1711f1cef
5 changed files with 23 additions and 14 deletions
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4
AK/Traits.h
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@ -20,6 +20,7 @@ struct GenericTraits {
using PeekType = T&;
using ConstPeekType = T const&;
static constexpr bool is_trivial() { return false; }
static constexpr bool is_trivially_serializable() { return false; }
static constexpr bool equals(T const& a, T const& b) { return a == b; }
template<Concepts::HashCompatible<T> U>
static bool equals(U const& a, T const& b) { return a == b; }
@ -32,6 +33,7 @@ struct Traits : public GenericTraits<T> {
template<Integral T>
struct Traits<T> : public GenericTraits<T> {
static constexpr bool is_trivial() { return true; }
static constexpr bool is_trivially_serializable() { return true; }
static constexpr unsigned hash(T value)
{
if constexpr (sizeof(T) < 8)
@ -45,6 +47,7 @@ struct Traits<T> : public GenericTraits<T> {
template<FloatingPoint T>
struct Traits<T> : public GenericTraits<T> {
static constexpr bool is_trivial() { return true; }
static constexpr bool is_trivially_serializable() { return true; }
static constexpr unsigned hash(T value)
{
if constexpr (sizeof(T) < 8)
@ -65,6 +68,7 @@ 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(); }
static constexpr bool is_trivially_serializable() { return Traits<UnderlyingType<T>>::is_trivially_serializable(); }
};
template<typename T>