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Let's add FlyString::from_deprecated_fly_string() so we can use it instead of FlyString::from_utf8(). This will make it easier to detect potential unncessary allocations as we transfer to FlyString.
194 lines
4.1 KiB
C++
194 lines
4.1 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/DeprecatedFlyString.h>
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#include <AK/FlyString.h>
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#include <AK/HashMap.h>
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#include <AK/Singleton.h>
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#include <AK/StringView.h>
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#include <AK/Utf8View.h>
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namespace AK {
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static auto& all_fly_strings()
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{
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static Singleton<HashMap<StringView, uintptr_t>> table;
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return *table;
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}
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FlyString::FlyString()
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: m_data(String {}.to_fly_string_data({}))
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{
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}
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FlyString::~FlyString()
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{
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String::unref_fly_string_data({}, m_data);
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}
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ErrorOr<FlyString> FlyString::from_utf8(StringView string)
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{
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return FlyString { TRY(String::from_utf8(string)) };
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}
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FlyString::FlyString(String const& string)
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{
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if (string.is_short_string()) {
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m_data = string.to_fly_string_data({});
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return;
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}
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auto it = all_fly_strings().find(string.bytes_as_string_view());
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if (it == all_fly_strings().end()) {
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m_data = string.to_fly_string_data({});
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all_fly_strings().set(string.bytes_as_string_view(), m_data);
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string.did_create_fly_string({});
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} else {
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m_data = it->value;
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}
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String::ref_fly_string_data({}, m_data);
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}
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FlyString& FlyString::operator=(String const& string)
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{
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*this = FlyString { string };
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return *this;
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}
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FlyString::FlyString(FlyString const& other)
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: m_data(other.m_data)
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{
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String::ref_fly_string_data({}, m_data);
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}
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FlyString& FlyString::operator=(FlyString const& other)
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{
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if (this != &other) {
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m_data = other.m_data;
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String::ref_fly_string_data({}, m_data);
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}
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return *this;
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}
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FlyString::FlyString(FlyString&& other)
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: m_data(other.m_data)
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{
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other.m_data = String {}.to_fly_string_data({});
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}
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FlyString& FlyString::operator=(FlyString&& other)
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{
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m_data = other.m_data;
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other.m_data = String {}.to_fly_string_data({});
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return *this;
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}
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bool FlyString::is_empty() const
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{
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return bytes_as_string_view().is_empty();
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}
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unsigned FlyString::hash() const
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{
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return String::fly_string_data_to_hash({}, m_data);
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}
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FlyString::operator String() const
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{
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return to_string();
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}
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String FlyString::to_string() const
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{
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return String::fly_string_data_to_string({}, m_data);
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}
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Utf8View FlyString::code_points() const
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{
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return Utf8View { bytes_as_string_view() };
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}
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ReadonlyBytes FlyString::bytes() const
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{
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return bytes_as_string_view().bytes();
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}
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StringView FlyString::bytes_as_string_view() const
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{
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return String::fly_string_data_to_string_view({}, m_data);
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}
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bool FlyString::operator==(FlyString const& other) const
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{
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return m_data == other.m_data;
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}
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bool FlyString::operator==(String const& other) const
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{
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if (m_data == other.to_fly_string_data({}))
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return true;
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return bytes_as_string_view() == other.bytes_as_string_view();
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}
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bool FlyString::operator==(StringView string) const
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{
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return bytes_as_string_view() == string;
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}
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bool FlyString::operator==(char const* string) const
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{
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return bytes_as_string_view() == string;
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}
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void FlyString::did_destroy_fly_string_data(Badge<Detail::StringData>, StringView string_data)
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{
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all_fly_strings().remove(string_data);
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}
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uintptr_t FlyString::data(Badge<String>) const
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{
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return m_data;
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}
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size_t FlyString::number_of_fly_strings()
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{
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return all_fly_strings().size();
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}
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DeprecatedFlyString FlyString::to_deprecated_fly_string() const
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{
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return DeprecatedFlyString(bytes_as_string_view());
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}
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ErrorOr<FlyString> FlyString::from_deprecated_fly_string(DeprecatedFlyString const& deprecated_fly_string)
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{
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return FlyString::from_utf8(deprecated_fly_string.view());
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}
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unsigned Traits<FlyString>::hash(FlyString const& fly_string)
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{
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return fly_string.hash();
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}
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ErrorOr<void> Formatter<FlyString>::format(FormatBuilder& builder, FlyString const& fly_string)
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{
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return Formatter<StringView>::format(builder, fly_string.bytes_as_string_view());
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}
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bool FlyString::equals_ignoring_ascii_case(FlyString const& other) const
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{
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if (*this == other)
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return true;
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return StringUtils::equals_ignoring_ascii_case(bytes_as_string_view(), other.bytes_as_string_view());
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}
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}
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