mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 07:30:19 +00:00
9a120d7243
These are formatters that can only be used with debug print
functions, such as dbgln(). Currently this is limited to
Formatter<ErrorOr<T>>. With this you can still debug log ErrorOr
values (good for debugging), but trying to use them in any
String::formatted() call will fail (which prevents .to_string()
errors with the new failable strings being ignored).
You make a formatter debug only by adding a constexpr method like:
static constexpr bool is_debug_only() { return true; }
75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/StringBuilder.h>
|
|
#include <AK/StringView.h>
|
|
#include <Kernel/KBuffer.h>
|
|
#include <stdarg.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class KBufferBuilder {
|
|
AK_MAKE_NONCOPYABLE(KBufferBuilder);
|
|
|
|
public:
|
|
using OutputType = KBuffer;
|
|
|
|
static ErrorOr<KBufferBuilder> try_create();
|
|
|
|
KBufferBuilder(KBufferBuilder&&) = default;
|
|
KBufferBuilder& operator=(KBufferBuilder&&) = default;
|
|
~KBufferBuilder() = default;
|
|
|
|
ErrorOr<void> append(StringView);
|
|
ErrorOr<void> append(char);
|
|
ErrorOr<void> append(char const*, int);
|
|
|
|
ErrorOr<void> append_escaped_for_json(StringView);
|
|
ErrorOr<void> append_bytes(ReadonlyBytes);
|
|
|
|
template<typename... Parameters>
|
|
ErrorOr<void> appendff(CheckedFormatString<Parameters...>&& fmtstr, Parameters const&... parameters)
|
|
{
|
|
// FIXME: This really not ideal, but vformat expects StringBuilder.
|
|
StringBuilder builder;
|
|
AK::VariadicFormatParams<AK::AllowDebugOnlyFormatters::No, Parameters...> variadic_format_params { parameters... };
|
|
TRY(vformat(builder, fmtstr.view(), variadic_format_params));
|
|
return append_bytes(builder.string_view().bytes());
|
|
}
|
|
|
|
bool flush();
|
|
OwnPtr<KBuffer> build();
|
|
|
|
ReadonlyBytes bytes() const
|
|
{
|
|
if (!m_buffer)
|
|
return {};
|
|
return m_buffer->bytes();
|
|
}
|
|
|
|
size_t length() const
|
|
{
|
|
return m_size;
|
|
}
|
|
|
|
private:
|
|
explicit KBufferBuilder(NonnullOwnPtr<KBuffer>);
|
|
|
|
bool check_expand(size_t);
|
|
u8* insertion_ptr()
|
|
{
|
|
if (!m_buffer)
|
|
return nullptr;
|
|
return m_buffer->data() + m_size;
|
|
}
|
|
|
|
OwnPtr<KBuffer> m_buffer;
|
|
size_t m_size { 0 };
|
|
};
|
|
|
|
}
|