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AK+LibURL: Move CopyOnWrite<T> from LibURL to AK

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Andreas Kling 2024-09-10 11:05:56 +02:00 committed by Andreas Kling
parent d6d94ba8cb
commit af68771dda
Notes: github-actions[bot] 2024-09-10 11:52:29 +00:00 
Author: https://github.com/awesomekling
Commit: https://github.com/LadybirdBrowser/ladybird/commit/af68771dda8
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1359
2 changed files with 43 additions and 29 deletions
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41
AK/CopyOnWrite.h Normal file
View file

@ -0,0 +1,41 @@
/*
* Copyright (c) 2024, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/NonnullRefPtr.h>
namespace AK {
template<typename T>
class CopyOnWrite {
public:
CopyOnWrite()
: m_value(adopt_ref(*new T))
{
}
T& mutable_value()
{
if (m_value->ref_count() > 1)
m_value = m_value->clone();
return *m_value;
}
T const& value() const { return *m_value; }
operator T const&() const { return value(); }
operator T&() { return mutable_value(); }
T const* operator->() const { return &value(); }
T* operator->() { return &mutable_value(); }
T const* ptr() const { return m_value.ptr(); }
T* ptr() { return m_value.ptr(); }
private:
NonnullRefPtr<T> m_value;
};
}

31
Userland/Libraries/LibURL/URL.h
View file

@ -9,6 +9,7 @@
#pragma once
#include <AK/ByteString.h>
#include <AK/CopyOnWrite.h>
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
@ -73,34 +74,6 @@ enum class SpaceAsPlus {
String percent_encode(StringView input, PercentEncodeSet set = PercentEncodeSet::Userinfo, SpaceAsPlus = SpaceAsPlus::No);
ByteString percent_decode(StringView input);
template<typename T>
class CopyOnWrite {
public:
CopyOnWrite()
: m_value(adopt_ref(*new T))
{
}
T& mutable_value()
{
if (m_value->ref_count() > 1)
m_value = m_value->clone();
return *m_value;
}
T const& value() const { return *m_value; }
operator T const&() const { return value(); }
operator T&() { return mutable_value(); }
T const* operator->() const { return &value(); }
T* operator->() { return &mutable_value(); }
T const* ptr() const { return m_value.ptr(); }
T* ptr() { return m_value.ptr(); }
private:
NonnullRefPtr<T> m_value;
};
// https://url.spec.whatwg.org/#url-representation
// A URL is a struct that represents a universal identifier. To disambiguate from a valid URL string it can also be referred to as a URL record.
class URL {
@ -233,7 +206,7 @@ private:
// A URL also has an associated blob URL entry that is either null or a blob URL entry. It is initially null.
Optional<BlobURLEntry> blob_url_entry;
};
CopyOnWrite<Data> m_data;
AK::CopyOnWrite<Data> m_data;
};
URL create_with_url_or_path(ByteString const&);