83 lines
1.7 KiB
C++
83 lines
1.7 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
// Copyright The Music Player Daemon Project
|
|
|
|
#pragma once
|
|
|
|
#include "Type.hxx"
|
|
|
|
#include <cstdint>
|
|
|
|
class TagMask {
|
|
using mask_t = uint_least64_t;
|
|
|
|
/* the mask must have enough bits to represent all tags
|
|
supported by MPD */
|
|
static_assert(TAG_NUM_OF_ITEM_TYPES <= sizeof(mask_t) * 8);
|
|
|
|
mask_t value;
|
|
|
|
explicit constexpr TagMask(uint_least32_t _value) noexcept
|
|
:value(_value) {}
|
|
|
|
public:
|
|
constexpr TagMask() noexcept = default;
|
|
|
|
constexpr TagMask(TagType tag) noexcept
|
|
:value(mask_t(1) << mask_t(tag)) {}
|
|
|
|
static constexpr TagMask None() noexcept {
|
|
return TagMask(mask_t(0));
|
|
}
|
|
|
|
static constexpr TagMask All() noexcept {
|
|
return ~None();
|
|
}
|
|
|
|
constexpr TagMask operator~() const noexcept {
|
|
return TagMask(~value);
|
|
}
|
|
|
|
constexpr TagMask operator&(TagMask other) const noexcept {
|
|
return TagMask(value & other.value);
|
|
}
|
|
|
|
constexpr TagMask operator|(TagMask other) const noexcept {
|
|
return TagMask(value | other.value);
|
|
}
|
|
|
|
constexpr TagMask operator^(TagMask other) const noexcept {
|
|
return TagMask(value ^ other.value);
|
|
}
|
|
|
|
constexpr TagMask &operator&=(TagMask other) noexcept {
|
|
value &= other.value;
|
|
return *this;
|
|
}
|
|
|
|
constexpr TagMask &operator|=(TagMask other) noexcept {
|
|
value |= other.value;
|
|
return *this;
|
|
}
|
|
|
|
constexpr TagMask &operator^=(TagMask other) noexcept {
|
|
value ^= other.value;
|
|
return *this;
|
|
}
|
|
|
|
constexpr bool TestAny() const noexcept {
|
|
return value != 0;
|
|
}
|
|
|
|
constexpr bool Test(TagType tag) const noexcept {
|
|
return (*this & tag).TestAny();
|
|
}
|
|
|
|
constexpr void Set(TagType tag) noexcept {
|
|
*this |= tag;
|
|
}
|
|
|
|
constexpr void Unset(TagType tag) noexcept {
|
|
*this &= ~TagMask(tag);
|
|
}
|
|
};
|