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Create EnumMap

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This commit is contained in:
Pokechu22
2021-04-24 19:26:27 -07:00
parent a80fcf38ae
commit ba107819ec
6 changed files with 122 additions and 8 deletions
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21
Source/Core/Common/EnumFormatter.h
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@ -3,7 +3,8 @@
#pragma once
#include <array>
#include "Common/EnumMap.h"
#include <fmt/format.h>
#include <type_traits>
@ -41,11 +42,15 @@
* formatter() : EnumFormatter(names) {}
* };
*/
template <auto last_member, typename T = decltype(last_member),
size_t size = static_cast<size_t>(last_member) + 1,
std::enable_if_t<std::is_enum_v<T>, bool> = true>
template <auto last_member, typename = decltype(last_member)>
class EnumFormatter
{
// The second template argument is needed to avoid compile errors from ambiguity with multiple
// enums with the same number of members in GCC prior to 8. See https://godbolt.org/z/xcKaW1seW
// and https://godbolt.org/z/hz7Yqq1P5
using T = decltype(last_member);
static_assert(std::is_enum_v<T>);
public:
constexpr auto parse(fmt::format_parse_context& ctx)
{
@ -61,19 +66,19 @@ public:
{
const auto value_s = static_cast<std::underlying_type_t<T>>(e); // Possibly signed
const auto value_u = static_cast<std::make_unsigned_t<T>>(value_s); // Always unsigned
const bool has_name = value_s >= 0 && value_u < size && m_names[value_u] != nullptr;
const bool has_name = m_names.InBounds(e) && m_names[e] != nullptr;
if (!formatting_for_shader)
{
if (has_name)
return fmt::format_to(ctx.out(), "{} ({})", m_names[value_u], value_s);
return fmt::format_to(ctx.out(), "{} ({})", m_names[e], value_s);
else
return fmt::format_to(ctx.out(), "Invalid ({})", value_s);
}
else
{
if (has_name)
return fmt::format_to(ctx.out(), "{:#x}u /* {} */", value_u, m_names[value_u]);
return fmt::format_to(ctx.out(), "{:#x}u /* {} */", value_u, m_names[e]);
else
return fmt::format_to(ctx.out(), "{:#x}u /* Invalid */", value_u);
}
@ -81,7 +86,7 @@ public:
protected:
// This is needed because std::array deduces incorrectly if nullptr is included in the list
using array_type = std::array<const char*, size>;
using array_type = Common::EnumMap<const char*, last_member>;
constexpr explicit EnumFormatter(const array_type names) : m_names(std::move(names)) {}