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4296425bd8
C++20 can automatically synthesize `operator!=` from `operator==`, so there is no point in writing such functions by hand if all they do is call through to `operator==`. This fixes a compile error with compilers that implement P2468 (Clang 16 currently). This paper restores the C++17 behavior that if both `T::operator==(U)` and `T::operator!=(U)` exist, `U == T` won't be rewritten in reverse to call `T::operator==(U)`. Removing `!=` operators makes the rewriting possible again. See https://reviews.llvm.org/D134529#3853062
68 lines
1.8 KiB
C++
68 lines
1.8 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/EnumBits.h>
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#include <AK/Noncopyable.h>
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#include <AK/Vector.h>
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#include <LibVT/Color.h>
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#include <LibVT/XtermColors.h>
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#ifndef KERNEL
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# include <AK/String.h>
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#endif
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namespace VT {
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struct Attribute {
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static constexpr Color default_foreground_color = Color::named(Color::ANSIColor::DefaultForeground);
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static constexpr Color default_background_color = Color::named(Color::ANSIColor::DefaultBackground);
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void reset()
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{
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foreground_color = default_foreground_color;
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background_color = default_background_color;
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flags = Flags::NoAttributes;
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#ifndef KERNEL
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href = {};
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href_id = {};
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#endif
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}
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Color foreground_color { default_foreground_color };
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Color background_color { default_background_color };
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#ifndef KERNEL
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String href;
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String href_id;
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#endif
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enum class Flags : u8 {
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NoAttributes = 0x00,
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Bold = 0x01,
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Italic = 0x02,
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Underline = 0x04,
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Negative = 0x08,
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Blink = 0x10,
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Touched = 0x20,
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};
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AK_ENUM_BITWISE_FRIEND_OPERATORS(Flags);
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constexpr Color effective_background_color() const { return has_flag(flags, Flags::Negative) ? foreground_color : background_color; }
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constexpr Color effective_foreground_color() const { return has_flag(flags, Flags::Negative) ? background_color : foreground_color; }
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constexpr bool is_untouched() const { return !has_flag(flags, Flags::Touched); }
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Flags flags { Flags::NoAttributes };
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constexpr bool operator==(Attribute const& other) const
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{
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return foreground_color == other.foreground_color && background_color == other.background_color && flags == other.flags;
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}
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};
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}
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