mirror of
https://github.com/LadybirdBrowser/ladybird.git
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824a40e95b
Previously this was generating a crazy number of symbols, and it was also pretty-damn-slow as it was defined recursively, which made the compiler incapable of inlining it (due to the many many layers of recursion before it terminated). This commit replaces the recursion with a pack expansion and marks it always-inline.
97 lines
2.6 KiB
C++
97 lines
2.6 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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#pragma once
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#include <AK/String.h>
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namespace AK {
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class FlyString {
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public:
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FlyString() = default;
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FlyString(const FlyString& other)
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: m_impl(other.impl())
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{
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}
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FlyString(FlyString&& other)
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: m_impl(move(other.m_impl))
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{
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}
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FlyString(const String&);
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FlyString(const StringView&);
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FlyString(const char* string)
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: FlyString(static_cast<String>(string))
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{
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}
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FlyString& operator=(const FlyString& other)
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{
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m_impl = other.m_impl;
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return *this;
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}
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FlyString& operator=(FlyString&& other)
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{
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m_impl = move(other.m_impl);
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return *this;
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}
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bool is_empty() const { return !m_impl || !m_impl->length(); }
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bool is_null() const { return !m_impl; }
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bool operator==(const FlyString& other) const { return m_impl == other.m_impl; }
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bool operator!=(const FlyString& other) const { return m_impl != other.m_impl; }
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bool operator==(const String&) const;
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bool operator!=(const String& string) const { return !(*this == string); }
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bool operator==(const StringView&) const;
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bool operator!=(const StringView& string) const { return !(*this == string); }
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bool operator==(const char*) const;
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bool operator!=(const char* string) const { return !(*this == string); }
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const StringImpl* impl() const { return m_impl; }
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const char* characters() const { return m_impl ? m_impl->characters() : nullptr; }
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size_t length() const { return m_impl ? m_impl->length() : 0; }
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ALWAYS_INLINE u32 hash() const { return m_impl ? m_impl->existing_hash() : 0; }
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StringView view() const;
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FlyString to_lowercase() const;
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template<typename T = int>
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Optional<T> to_int() const;
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template<typename T = unsigned>
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Optional<T> to_uint() const;
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bool equals_ignoring_case(const StringView&) const;
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bool starts_with(const StringView&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
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bool ends_with(const StringView&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
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static void did_destroy_impl(Badge<StringImpl>, StringImpl&);
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template<typename... Ts>
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[[nodiscard]] ALWAYS_INLINE constexpr bool is_one_of(Ts... strings) const
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{
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return (... || this->operator==(forward<Ts>(strings)));
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}
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private:
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RefPtr<StringImpl> m_impl;
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};
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template<>
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struct Traits<FlyString> : public GenericTraits<FlyString> {
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static unsigned hash(const FlyString& s) { return s.hash(); }
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};
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}
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using AK::FlyString;
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