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76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/String.h>
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#include <Kernel/KBuffer.h>
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#include <stdarg.h>
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namespace Kernel {
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class KBufferBuilder {
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public:
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using OutputType = KBuffer;
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explicit KBufferBuilder(bool can_expand = false);
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explicit KBufferBuilder(RefPtr<KBufferImpl>&, bool can_expand = false);
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KBufferBuilder(KBufferBuilder&&) = default;
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~KBufferBuilder() { }
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void append(const StringView&);
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void append(char);
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void append(const char*, int);
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void append_escaped_for_json(const StringView&);
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void append_bytes(ReadonlyBytes);
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template<typename... Parameters>
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void appendff(StringView fmtstr, const Parameters&... parameters)
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{
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// FIXME: This is really not the way to go about it, but vformat expects a
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// StringBuilder. Why does this class exist anyways?
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append(String::formatted(fmtstr, parameters...));
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}
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bool flush();
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OwnPtr<KBuffer> build();
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private:
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bool check_expand(size_t);
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u8* insertion_ptr()
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{
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if (!m_buffer)
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return nullptr;
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return m_buffer->data() + m_size;
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}
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RefPtr<KBufferImpl> m_buffer;
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size_t m_size { 0 };
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bool m_can_expand { false };
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};
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}
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