mirror of
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145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
/*
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* Copyright (c) 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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#include <AK/DeprecatedFlyString.h>
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#include <AK/DeprecatedString.h>
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#include <AK/HashTable.h>
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#include <AK/Optional.h>
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#include <AK/Singleton.h>
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#include <AK/StringUtils.h>
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#include <AK/StringView.h>
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namespace AK {
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struct DeprecatedFlyStringImplTraits : public Traits<StringImpl*> {
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static unsigned hash(StringImpl const* s) { return s ? s->hash() : 0; }
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static bool equals(StringImpl const* a, StringImpl const* b)
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{
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VERIFY(a);
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VERIFY(b);
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return *a == *b;
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}
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};
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static Singleton<HashTable<StringImpl const*, DeprecatedFlyStringImplTraits>> s_table;
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static HashTable<StringImpl const*, DeprecatedFlyStringImplTraits>& fly_impls()
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{
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return *s_table;
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}
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void DeprecatedFlyString::did_destroy_impl(Badge<StringImpl>, StringImpl& impl)
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{
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fly_impls().remove(&impl);
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}
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DeprecatedFlyString::DeprecatedFlyString(DeprecatedString const& string)
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{
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if (string.is_null())
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return;
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if (string.impl()->is_fly()) {
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m_impl = string.impl();
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return;
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}
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auto it = fly_impls().find(const_cast<StringImpl*>(string.impl()));
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if (it == fly_impls().end()) {
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fly_impls().set(const_cast<StringImpl*>(string.impl()));
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string.impl()->set_fly({}, true);
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m_impl = string.impl();
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} else {
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VERIFY((*it)->is_fly());
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m_impl = *it;
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}
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}
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DeprecatedFlyString::DeprecatedFlyString(StringView string)
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{
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if (string.is_null())
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return;
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auto it = fly_impls().find(string.hash(), [&](auto& candidate) {
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return string == candidate;
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});
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if (it == fly_impls().end()) {
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auto new_string = string.to_deprecated_string();
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fly_impls().set(new_string.impl());
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new_string.impl()->set_fly({}, true);
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m_impl = new_string.impl();
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} else {
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VERIFY((*it)->is_fly());
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m_impl = *it;
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}
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}
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template<typename T>
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Optional<T> DeprecatedFlyString::to_int(TrimWhitespace trim_whitespace) const
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{
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return StringUtils::convert_to_int<T>(view(), trim_whitespace);
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}
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template Optional<i8> DeprecatedFlyString::to_int(TrimWhitespace) const;
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template Optional<i16> DeprecatedFlyString::to_int(TrimWhitespace) const;
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template Optional<i32> DeprecatedFlyString::to_int(TrimWhitespace) const;
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template Optional<i64> DeprecatedFlyString::to_int(TrimWhitespace) const;
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template<typename T>
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Optional<T> DeprecatedFlyString::to_uint(TrimWhitespace trim_whitespace) const
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{
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return StringUtils::convert_to_uint<T>(view(), trim_whitespace);
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}
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template Optional<u8> DeprecatedFlyString::to_uint(TrimWhitespace) const;
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template Optional<u16> DeprecatedFlyString::to_uint(TrimWhitespace) const;
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template Optional<u32> DeprecatedFlyString::to_uint(TrimWhitespace) const;
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template Optional<u64> DeprecatedFlyString::to_uint(TrimWhitespace) const;
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#ifndef KERNEL
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Optional<double> DeprecatedFlyString::to_double(TrimWhitespace trim_whitespace) const
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{
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return StringUtils::convert_to_floating_point<double>(view(), trim_whitespace);
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}
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Optional<float> DeprecatedFlyString::to_float(TrimWhitespace trim_whitespace) const
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{
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return StringUtils::convert_to_floating_point<float>(view(), trim_whitespace);
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}
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#endif
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bool DeprecatedFlyString::equals_ignoring_ascii_case(StringView other) const
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{
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return StringUtils::equals_ignoring_ascii_case(view(), other);
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}
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bool DeprecatedFlyString::starts_with(StringView str, CaseSensitivity case_sensitivity) const
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{
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return StringUtils::starts_with(view(), str, case_sensitivity);
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}
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bool DeprecatedFlyString::ends_with(StringView str, CaseSensitivity case_sensitivity) const
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{
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return StringUtils::ends_with(view(), str, case_sensitivity);
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}
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DeprecatedFlyString DeprecatedFlyString::to_lowercase() const
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{
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return DeprecatedString(*m_impl).to_lowercase();
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}
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bool DeprecatedFlyString::operator==(DeprecatedString const& other) const
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{
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return m_impl == other.impl() || view() == other.view();
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}
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bool DeprecatedFlyString::operator==(StringView string) const
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{
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return view() == string;
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}
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bool DeprecatedFlyString::operator==(char const* string) const
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{
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return view() == string;
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}
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}
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