mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
3f3f45580a
Each of these strings would previously rely on StringView's char const* constructor overload, which would call __builtin_strlen on the string. Since we now have operator ""sv, we can replace these with much simpler versions. This opens the door to being able to remove StringView(char const*). No functional changes.
61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Format.h>
|
|
#include <AK/Types.h>
|
|
|
|
class VirtualAddress {
|
|
public:
|
|
VirtualAddress() = default;
|
|
constexpr explicit VirtualAddress(FlatPtr address)
|
|
: m_address(address)
|
|
{
|
|
}
|
|
|
|
explicit VirtualAddress(void const* address)
|
|
: m_address((FlatPtr)address)
|
|
{
|
|
}
|
|
|
|
[[nodiscard]] constexpr bool is_null() const { return m_address == 0; }
|
|
[[nodiscard]] constexpr bool is_page_aligned() const { return (m_address & 0xfff) == 0; }
|
|
|
|
[[nodiscard]] constexpr VirtualAddress offset(FlatPtr o) const { return VirtualAddress(m_address + o); }
|
|
[[nodiscard]] constexpr FlatPtr get() const { return m_address; }
|
|
void set(FlatPtr address) { m_address = address; }
|
|
void mask(FlatPtr m) { m_address &= m; }
|
|
|
|
bool operator<=(VirtualAddress const& other) const { return m_address <= other.m_address; }
|
|
bool operator>=(VirtualAddress const& other) const { return m_address >= other.m_address; }
|
|
bool operator>(VirtualAddress const& other) const { return m_address > other.m_address; }
|
|
bool operator<(VirtualAddress const& other) const { return m_address < other.m_address; }
|
|
bool operator==(VirtualAddress const& other) const { return m_address == other.m_address; }
|
|
bool operator!=(VirtualAddress const& other) const { return m_address != other.m_address; }
|
|
|
|
// NOLINTNEXTLINE(readability-make-member-function-const) const VirtualAddress shouldn't be allowed to modify the underlying memory
|
|
[[nodiscard]] u8* as_ptr() { return reinterpret_cast<u8*>(m_address); }
|
|
[[nodiscard]] u8 const* as_ptr() const { return reinterpret_cast<u8 const*>(m_address); }
|
|
|
|
[[nodiscard]] VirtualAddress page_base() const { return VirtualAddress(m_address & ~(FlatPtr)0xfffu); }
|
|
|
|
private:
|
|
FlatPtr m_address { 0 };
|
|
};
|
|
|
|
inline VirtualAddress operator-(VirtualAddress const& a, VirtualAddress const& b)
|
|
{
|
|
return VirtualAddress(a.get() - b.get());
|
|
}
|
|
|
|
template<>
|
|
struct AK::Formatter<VirtualAddress> : AK::Formatter<FormatString> {
|
|
ErrorOr<void> format(FormatBuilder& builder, VirtualAddress const& value)
|
|
{
|
|
return AK::Formatter<FormatString>::format(builder, "V{}"sv, value.as_ptr());
|
|
}
|
|
};
|