ladybird/AK/FlyString.h
Brian Gianforcaro 1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00

98 lines
2.6 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
namespace AK {
class FlyString {
public:
FlyString() = default;
FlyString(const FlyString& other)
: m_impl(other.impl())
{
}
FlyString(FlyString&& other)
: m_impl(move(other.m_impl))
{
}
FlyString(const String&);
FlyString(const StringView&);
FlyString(const char*);
FlyString& operator=(const FlyString& other)
{
m_impl = other.m_impl;
return *this;
}
FlyString& operator=(FlyString&& other)
{
m_impl = move(other.m_impl);
return *this;
}
bool is_empty() const { return !m_impl || !m_impl->length(); }
bool is_null() const { return !m_impl; }
bool operator==(const FlyString& other) const { return m_impl == other.m_impl; }
bool operator!=(const FlyString& other) const { return m_impl != other.m_impl; }
bool operator==(const String&) const;
bool operator!=(const String& string) const { return !(*this == string); }
bool operator==(const StringView&) const;
bool operator!=(const StringView& string) const { return !(*this == string); }
bool operator==(const char*) const;
bool operator!=(const char* string) const { return !(*this == string); }
const StringImpl* impl() const { return m_impl; }
const char* characters() const { return m_impl ? m_impl->characters() : nullptr; }
size_t length() const { return m_impl ? m_impl->length() : 0; }
ALWAYS_INLINE u32 hash() const { return m_impl ? m_impl->existing_hash() : 0; }
StringView view() const;
FlyString to_lowercase() const;
template<typename T = int>
Optional<T> to_int() const;
template<typename T = unsigned>
Optional<T> to_uint() const;
bool equals_ignoring_case(const StringView&) const;
bool starts_with(const StringView&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
bool ends_with(const StringView&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
static void did_destroy_impl(Badge<StringImpl>, StringImpl&);
template<typename T, typename... Rest>
bool is_one_of(const T& string, Rest... rest) const
{
if (*this == string)
return true;
return is_one_of(rest...);
}
private:
bool is_one_of() const { return false; }
RefPtr<StringImpl> m_impl;
};
template<>
struct Traits<FlyString> : public GenericTraits<FlyString> {
static unsigned hash(const FlyString& s) { return s.hash(); }
};
}
using AK::FlyString;